1) Riisgård, H.U. (1977). On measurements of the filtration rates in suspensions-feeding bivalves in a flow system. Ophelia 16, 167-173.

2) Møhlenberg, F., Riisgård, H.U. (1978). Efficiency of particle retention in 13 species of suspension-feeding bivalves. Ophelia 17, 239-246.

3) Riisgård, H.U. (1979). Effect of copper on volume regulation in the marine flagellate Dunaliella marina. Mar. Biol. 50, 189-193.

4) Riisgård, H.U. (1979). Danish marine oil pollution policy. Mar. Pollut. Bull. 10, 250-253.

5) Møhlenberg, F., Riisgård, H.U. (1979). Filtration rate, using a new indirect technique, in thirteen species of suspensions-feeding bivalves. Mar. Biol. 54, 143-148.

6) Randløv, A., Riisgård, H.U. (1979). Efficiency of particle retention and filtration rate in four species of ascidians. Mar. Ecol. Prog. Ser. 1, 55-59.

7) Riisgård, H.U., Møhlenberg, F. (1979). An improved automatic recording apparatus for determining the filtration rate of Mytilus edulis as a function of size and algal concentration. Mar. Biol. 52, 61-67.

8) Riisgård, H.U., Nørgård Nielsen, K., Søgaard-Jensen, B. (1980). Further studies on volume regulation and effects of copper in relation to pH and EDTA in the naked marine flagellate Dunaliella marina. Mar. Biol. 56, 267-276.

9) Riisgård, H.U., Randløv, A., Sand Kristensen, P. (1980). Rates of water processing oxygen consumption and efficiency of particle retention in veligers and young post-metamorphic Mytilus edulis. Ophelia 19, 37-47.

10) Riisgård, H.U. (1981). Cell-volume responses in the naked marine flagellate Dunaliella marina transferred from darkness to light of different intensities. Bot. Mar. 24, 657-659.

11) Jensen, K., Randløv, A., Riisgård, H.U. (1981). Heavy metal pollution from a point source demonstrated by means of mussels, Mytilus edulis. Chemosphere 10: 761-765.

12) Riisgård, H.U., Poulsen, E. (1981). Growth of Mytilus edulis in net bags transferred to different localities in an eutrophicated Danish fjord. Mar. Pollut. Bull. 12, 272-276.

13) Riisgård, H.U., Randløv, A. (1981). Energy budgets, growth and filtration rates in Mytilus edulis at different algal concentration. Mar. Biol. 61, 227-234.

14) Riisgård, H.U., Randløv, A., Hamburger, K. (1981). Oxygen consumption and clearance as a function of size in Mytilus edulis L. veliger larvae. Ophelia 20, 179-183.

15) Köhler, K., Riisgård, H.U. (1982). Formation of metallothioneins in relations to accumulation of cadmium in the common mussel, Mytilus edulis. Mar. Biol. 66, 53-58.

16) Poulsen, E., Møhlenberg, F., Riisgård, H.U. (1982). Accumulation of cadmium and bioenergetics in the mussel Mytilus edulis. Mar. Biol. 68, 25-29.

17) Hamburger, K., Møhlenberg, F., Randløv, A., Riisgård, H.U. (1983). Size, oxygen consumption and growth in the mussel Mytilus edulis. Mar. Biol. 75, 303-306.

18) Kiørboe, T., Møhlenberg, F., Riisgård, H.U. (1983). Mercury levels in fish, invertebrates and sediment in a recently recorded polluted area (Nissum Broad, Western Limfjord, Denmark). Mar. Pollut. Bull. 14, 21-24.

19) Riisgård, H.U., Jensen, A. (1983). On the distribution of mercury in muscles and soft parts of the mussel Mytilus edulis collected in areas with different levels of mercury pollution. In: Proceedings of Chemicals in the Environment, Copenhagen, 18-20 October 1982, pp. 226-238.

20) Riisgård, H.U. (1984). Mercury pollution in the waters around Harboøre Tange and Limfjord, Denmark. Mar. Pollut. Bull. 15, 129-133.

21) Jørgensen, C.B., Kiørboe, T., Møhlenberg, F., Riisgård, H.U. (1984). Ciliary and mucus net filter feeding, with special reference to fluid mechanical characteristics. Mar. Ecol. Prog. Ser. 15, 283-292.

22) Riisgård, H.U., Kiørboe, T., Møhlenberg, F., Drabæk, I., Madsen, P.P. (1985). Accumulation, elimination and chemical speciation of mercury in the bivalves Mytilus edulis and Macoma balthica. Mar. Biol. 86, 55-62.

23) Kiørboe, T., Møhlenberg, F., Riisgård, H.U. (1985). In situ feeding rates of plantonic copepods: a comparison of four methods. J. Exp. Mar. Biol. Ecol. 88, 67-81.

24) Jørgensen, C.B., Famme, P., Kristensen, H.S., Larsen, P.S., Møhlenberg, F. Riisgård, H.U. (1986). The bivalve pump. Mar. Ecol. Prog. Ser. 34, 69-77.

25) Famme, P., Riisgård, H.U., Jørgensen, C.B. (1986). On direct measurement of pumping rates in the mussel Mytilus edulis. Mar. Biol. 92, 323-327.

26) Riisgård, H.U., Famme, P. (1986): Accumulation of inorganic and organic mercury in shrimp, Crangon crangon. Mar. Pollut. Bull. 17, 255-257.

27) Toudal, K., Riisgård, H.U. (1987): Acute and sublethal effects of cadmium on ingestion, egg production and life-cycle development in the copepod Acartia tonsa. Mar. Ecol. Prog. Ser. 37, 141-146.

28) Riisgård, H.U., Bjørnestad, E., Møhlenberg, F. (1987). Accumulation of cadmium in the mussel Mytilus edulis: kinetics and importance of uptake via food and sea water. Mar. Biol. 96, 349-353.

29) Jørgensen, C.B., Riisgård, H.U. (1988). Gill pump characteristics of the soft clam Mya arenaria. Mar. Biol. 99: 107-109.

30) Jørgensen, C.B., Larsen, P.S., Møhlenberg, F., Riisgård, H.U. (1988). The mussel pump: properties and modelling. Mar. Ecol. Prog. Ser. 45: 205-216.

31) Kryger, J., Riisgård, H.U. (1988). Filtration rate capacities in 6 species of European freshwater bivalves. Oecologia 77: 34-38.

32) Møhlenberg, F., Riisgård, H.U. (1988). Partitioning of inorganic and organic mercury in the cockles Cardium edule (L.) and C. glaucum (Bruguiere) from a chronically polluted area: influence of size and age. Environ. Pollut. 55: 137-148.

33) Riisgård, H.U., Famme, P. (1988). Distribution and mobility of organic and inorganic mercury in flounder, Platichtys flesus, from a chronically polluted area. Toxicol. Environ. Chem. 16, 219-228.

34) Riisgård, H.U. (1988): Efficiency of particle retention and filtration rate in 6 species of Northeast American bivalves. Mar. Ecol. Prog. Ser. 45: 217-223.

35) Riisgård, H.U. (1988). The ascidian pump: properties and energy cost. Mar. Ecol. Prog. Ser. 47: 129-134.

36) Riisgård, H.U. (1988). Feeding rates in hard clam (Mercenaria mercenaria) veliger larvae as a function of algal (Isochrysis galbana) concentration. J. Shell. Res. 7: 377-380.

37) Riisgård, H.U. (1989). Properties and energy cost of the muscular piston pump in the suspension feeding polychaete Chaetopterus variopedatus. Mar. Ecol. Prog. Ser. 56: 157-168.

38) Riisgård, H.U., Hansen, S. (1990). Biomagnification of mercury in a marine grazing food chain: algal cells Phaeodactylum tricornutum, mussels Mytilus edulis and flounders Platichtys flesus studied by means of a stepwise-reduction CVAA-method. Mar. Ecol. Prog. Ser. 62: 259-270.

39) Riisgård, H.U., Ivarsson, N.M. (1990). The crown-filament-pump of the suspension-feeding polychaete Sabella penicillus: filtration, effects of temperature, energy cost, and modelling. Mar. Ecol. Prog. Ser. 62: 249-257.

40) Jørgensen, C.B., Larsen, P.S., Riisgård, H.U. (1990). Effects of temperature on the mussel pump. Mar. Ecol. Prog. Ser. 64: 89-97.

41) Riisgård, H.U. (1991). Filtration rate and growyh in the blue mussel Mytilus edulis Linneaus, 1758: dependence on algal concentration. J. Shell. Res. 10: 29-35.

42) Riisgård, H.U. (1991). Suspension feeding in the polychaete Nereis diversicolor. Mar. Ecol. Prog. Ser. 70: 29-37.

43) Riisgård, H.U., Vedel, A., Boye, H., Larsen, P.S. (1992). Filter-net structure and pumping activity in the polychaete Nereis diversicolor: effects of temperature and pump-modelling. Mar. Ecol. Prog. Ser. 83: 79-89.

44) Petersen, J. K., Riisgård, H.U. (1992). Filtration capacity of the ascidian Ciona intestinalis and its grazing impact in a shallow fjord. Mar. Ecol. Prog. Ser. 88: 9-17.

45) Nielsen, N.F., Larsen, P.S., Riisgård, H.U., Jørgensen, C.B. (1993). Fluid motion and particle retention in the gill of Mytilus edulis: video recordings and numerical modelling. Mar. Biol. 116: 61-71.

46) Riisgård, H.U., Thomassen, S., Jakobsen, H., Weeks, J., Larsen, P.S. (1993). Suspension feeding in marine sponges Halichondria panicea and Haliclona urceolus: effects of temperature on filtration rate and energy cost of pumping. Mar. Ecol. Prog. Ser. 96: 177-188.

47) Vedel, A., Riisgård, H.U. (1993). Filter-feeding in the polychaete Nereis diversicolor: growth and bioenergetics. Mar. Ecol. Prog. Ser. 100: 145-152.

48) Vedel, A., Andersen, B.B., Riisgård, H.U. (1993). Field investigations of pumping activity of the facultatively filter-feeding polychaete Nereis diversicolor using an improved infrared phototransducer system. Mar. Ecol. Prog. Ser. 103: 91-101.

49) Olesen, N.J., Frandsen, K., Riisgård, H.U. (1994). Population dynamics, growth and energetics of jellyfish Aurelia aurita in a shallow fjord. Mar. Ecol. Prog. Ser. 105: 9-18.

50) Larsen, P.S., Riisgård, H.U. (1994). The sponge pump. J. theor. Biol. 168: 53-63.

51) Riisgård, H.U. (1994). Filter-feeding in the polychaete Nereis diversicolor: A review. Neth. J. Aqua. Ecol. 28: 453-458.

52) Riisgård, H.U., Larsen, P.S. (1995). Filter-feeding in marine macroinvertebrates: pump characteristics, modelling and energy cost. Biol. Rev. Camb. Phil. Soc. 70: 67-106.

53) Riisgård, H.U., Christensen, P.B., Olesen, N.J., Petersen, J.K., Møller, M.M., Andersen, P. (1995). Biological structure in a shallow cove (Kertinge Nor, Denmark) – Control by benthic nutrient fluxes and suspension-feeding ascidians and jellyfish. Ophelia 41: 329-344.

54) Nielsen, A.M., Eriksen, N.T., Iversen, J.J.L., Riisgård, H.U. (1995). Feeding, growth and respiration in the polychaetes Nereis diversicolor (facultative filter-feeder) and N. virens (omnivorous) – a comparative study. Mar. Ecol. Prog. Ser. 125: 149-158.

55) Thomassen, S., Riisgård, H.U. (1995). Growth and energetics of the sponge Halichondria panicea. Mar. Ecol. Prog. Ser. 128: 239-246.

56) Riisgård, H.U., Jürgensen, C., Andersen, F.Ø. (1996). Case study: Kertinge Nor. In: Eutrophication in coastal marine ecosystems (Eds. B. Barker Jørgensen & K. Richardson). American Geophysical Union. Coastal and Estuarine Studies 52: 205-221.

57) Riisgård, H.U., Jürgensen, C., Clausen, T. (1996). Filter-feeding ascidians (Ciona intestinalis) in a shallow cove: implications of hydrodynamics for grazing impact. J. Sea Res. 35: 293-300.

58) Riisgård, H.U., I. Berntsen, B. Tarp (1996). The lugworm Arenicola marina pump – characteristics, modelling and energy cost. Mar. Ecol. Prog. Ser. 138: 149-156.

59) Riisgård, H.U., Poulsen, L., Larsen, P.S. (1996). Phytoplankton reduction in near-bottom water caused by filter-feeding Nereis diversicolor – implications for worm growth and population grazing impact. Mar. Ecol. Prog. Ser. 141: 47-54.

60) Clausen, I., Riisgård, H.U. (1996). Growth, filtration and respiration in the mussel Mytilus edulis: no regulation of the filter-pump to nutritional needs. Mar. Ecol. Prog. Ser. 141: 37-45.

61) Riisgård, H.U., Larsen, P.S., Nielsen, N.F. (1996). Particle capture in the mussel Mytilus edulis: the role of latero-frontal cirri. Mar. Biol. 127: 259-266.

62) Larsen, P.S., Riisgård, H.U. (1997). Biomixing generated by benthic filter-feeders: a diffusion model for near-bottom phytoplankton depletion. J. Sea Res. 37: 81-90.

63) Riisgård, H.U., Manríquez, P. (1997). Filter-feeding in fifteen marine ectoprocts (Bryozoa): particle capture and water pumping. Mar. Ecol. Prog. Ser. 154: 223-239.

64) Riisgård, H.U., Goldson, A. (1997). Minimal scaling of the lophophore filter-pump in ectoprocts (Bryozoa) excludes physiological regulation of filtration rate to nutritional needs. Test of hypothesis. Mar. Ecol. Prog. Ser. 156: 109-120.

65) Frandsen, K., Riisgård, H.U. (1997). Size dependent respiration and growth of jellyfish (Aurelia aurita). Sarsia 82: 307-312.

66) Nielsen, A.S., Pedersen, A.W., Riisgård, H.U. (1997). Implications of density driven currents for interaction between jellyfish (Aurelia aurita) and zooplankton in a Danish fjord. Sarsia 82: 297-305.

67) Nielsen, C., Riisgård, H.U. (1998). Tentacle structure and filter-feeding in Crisia eburnea and other cyclostomatous bryozoans, with a review of upstream-collecting mechanisms. Mar. Ecol. Prog. Ser. 168: 163-186.

68) Riisgård, H.U. (1998). Filter feeding and plankton dynamics in a Danish fjord: A review of the importance of flow, mixing, and density-driven circulation. J. Envir. Manag. 53: 195-207.

69) Riisgård, H.U. (1998). No foundation of a ’3/4 power scaling law’ for respiration in biology. Ecol. Lett. 1: 71-73.

70) Riisgård, H.U., Jensen, A.S., Jürgensen, C. (1998). Hydrography, near-bottom currents and grazing impact of benthic filter-feeding ascidians (Ciona intestinalis) in a Danish fjord. Ophelia 49: 1-16.

71) Riisgård, H.U., Banta, G. T. (1998). Irrigation and deposit feeding by the lugworm Arenicola marina, characteristics and secondary effects on the environment. A review of current knowledge. Life & Environment 48: 243-257.

72) Larsen, P.S., Matlok, S., Riisgård, H.U. (1998). Bryozoan filter feeding in laminar wall layers: flume experiments and computer simulation. Life & Environment 48: 309-319.

73) Riisgård, H.U., Svane I. (1999). Filter feeding in lancelets (amphioxus) Brachiostoma lanceolatum. Invert. Biol. 118: 423-432.

74) Riisgård, H.U. (2000). The peer-review system: time for re-assessment? Mar. Ecol. Prog. Ser. 192: 305-313. – see also: Riisgård, H.U. (2000). The peer-review system. ASLO Bulletin 9: 20.

75) Riisgård, H.U., Larsen, P.S. (2000). A comment on experimental techniques for studying particle capture in filter-feeding bivalves. Limnol. Oceanogr. 45: 1192-1195.

76) Riisgård, H.U., Nielsen, C., Larsen, P.S. (2000). Downstream collecting in ciliary suspension feeders: the catch-up principle. Mar. Ecol. Prog. Ser. 207: 33-51.

77) Larsen, P.S., Riisgård, H.U. (2000). Chimney spacing in encrusting bryozoan colonies. ICTAM 2000. 20th International Congress of Theoretical and Applied Mechanics, Chicago, Aug. 27th – Sept. 2ed, 2000. Abstract Book, Dept. of Theoretical and Applied Mechanics, Univ. of Illinois at Urbana-Champaign, USA, pp. 201-202. ISSN 0073-5264.

78) Riisgård, H.U., Larsen, P.S. (2000). Comparative ecophysiology of active zoobenthic filter-feeding, essence of current knowledge. J. Sea Res. 44: 169-193.

79) Riisgård, H.U. (2001). On measurement of filtration rate in bivalves – the stony road to reliable data, review and interpretation. Mar. Ecol. Prog. Ser. 211: 275-291.

80) Riisgård, H.U., Kamermans, P. (2001). Switching between deposit and suspension feeding in coastal zoobenthos. In: Ecological comparisons of sedimentary shores (ed. K. Reise). Ecological studies. Springer-Verlag BerlinHeidelberg, pp. 73-101.

81) Riisgård, H.U. (2001). The stony road to reliable filtration rate measurements in bivalves: a reply. Mar. Ecol. Prog. Ser. 215: 307-310.

82) Riisgård, H.U., Larsen, P.S., (2001). Minireview: Ciliary filter feeding and bio-fluid mechanics – present understanding and unsolved problems. Limnol. Oceanogr. 46: 882-891.

83) Larsen, P.S., Riisgård, H.U. (2001). Chimney spacing in encrusting bryozoan colonies (Membraniporamembranacea): observations and hydrodynamic modelling. Ophelia 54(3): 167-176.

84) Hermansen, P. Larsen, P.S. Riisgård, H.U. (2001). Colony growth rate of encrusting bryozoans (Electra pilosa and Celleporella hyalina): importance of algal concentration and water flow. J. Exp. Mar. Biol. Ecol. 263: 1-23.

85) Riisgård H.U. (2001). Physiological regulation versus autonomous filtration in filter-feeding bivalves: starting points for progress. Ophelia 54(3): 193-209.

86) Riisgård, H.U. (2001). Inaccurate bivalve clearance rate measurements: a reply. Mar. Ecol. Prog. Ser. 221: 307-309.

87) Riisgård, H.U., Grémare,A., Amouroux, A.J.M.,Vétion, G., Charles, F., Rosenberg, R., Nielsen, C. (2002). A comparative study of water processing in two ciliary filter-feeding polychaetes (Ditrupa arietina and Euchone papillosa) from two different habitats. Mar. Ecol. Prog. Ser. 229: 113-126.

88) Riisgård, H.U. (2002). The methods of ciliary filter feeding in the adult Phoronis muelleri and its free swimming actinotrocha larva. Mar. Biol. 141: 75-87.

89) Larsen, P.S., Riisgård, H.U. (2002). On ciliary sieving and pumping in bryozoans. J. Sea Res. 291: 181-195.

90) Riisgård, H.U., Kittner, C., Seerup, D.F. (2003) Regulation of opening state and filtration rate in filter-feeding bivalves (Cardium edule, Mytilus edulis, Mya arenaria) in response to low algal concentration. J. Exp. Mar. Biol. Ecol. 284: 105-127.

91) Riisgård, H.U. (2003). Misuse of the peer-review system: time for countermeasures? Mar. Ecol. Prog. Ser. 258: 297-309.

92) Riisgård, H.U., Seerup, D.F. (2003). Filtration rates in soft clam, Mya arenaria: effects of temperature and body size. Sarsia 88: 425-428.

93) Riisgård, H.U., Seerup, D.F., M.H. Hjort, E. Glob, P.S. Larsen (2004). Grazing impact of filter-feeding zoobenthos in a Danish fjord. J. Exp. Mar. Biol. Ecol. 307: 261-271.

94) Riisgård, H.U., Nielsen, K.K., Fuchs, J., Føns, B.F. Rasmussen, Obst, M., Funch, P. (2004). Ciliary feeding structures and particle capture mechanism in the freshwater bryozoan Plumatella repens. Invertebr. Biol. 123(2): 155-166.

95) Riisgård, H.U. (2004). Intercalibration of methods for measurement of bivalve filtration rates – a turning point. Mar. Ecol. Prog. Ser. 276: 307-308.

96) Riisgård, H.U. (2004). Peer review: journal articles versus research proposals. Mar. Ecol. Prog. Ser. 277: 301-309.

97) Riisgård, H.U. (2004). Zoobenthic consumers of the primary production in the marine environment. Energetics, adaptations and grazing impact of marine filter-feeding macroinvertebrates – overview and recent research developments. Recent. Res. Devel. Environ. Biol. 1(2): 269-315.

98) Riisgård, H.U., Larsen, P.S. (2005). Water pumping and analysis of flow in burrowing zoobenthos – an overview. Aquatic Ecology 39: 237-258.

99) Riisgård, H.U., Larsen, P.S. (2005). Water flow analysis and particle capture in ciliary filter-feeding scallops (Pectinidae). Mar. Ecol. Prog. Ser. 303: 177-193.

100) Hansson, L.J. Moeslund, O., Kiørboe, T., Riisgård, H.U. (2005). Clearance rates of jellyfish and their potential predation impact on zooplankton and fish larvae in a neritic ecosystem (Limfjorden, Denmark). Mar. Ecol. Prog. Ser. 304: 117-131.

101) Kittner, C., Riisgård, H.U. (2005) Effect of temperature on filtration rate in the mussel Mytilus edulis – no evidence for temperature compensation. Mar. Ecol. Prog. Ser. 305: 147-152.

102) Lassen, J., Kortegård, M., Riisgård, H.U., Friedrichs, M., Graff, G., Larsen, P.S. (2006). Down-mixing of phytoplankton above filter-feeding mussels – interplay between water flow and biomixing. Mar. Ecol. Prog. Ser. 314: 77-88.

103) Møller, L.F., Riisgård, H.U. (2006). Filter feeding in the burrowing amphipod Corophium volutator. Mar. Ecol. Prog. Ser. 322: 213-224.

104) Riisgård, H.U., Nielsen C. (2006). Feeding mechanism of the polychaete Sabellaria alveolata: comment on Dubois et al. (2005). Mar. Ecol. Prog. Ser. 328: 295-305.

105) Riisgård, H.U, Lassen, J, Kittner, C. (2006). Valve-gape response times in mussels (Mytilus edulis) – effects of laboratory preceding-feeding conditions and in situ tidally induced variation in phytoplankton biomass. J. Shellfish Res. 25: 901-913.

106) Møller, L.F., Riisgård, H.U. (2007). Respiration in the scyphozoan jellyfish Aurelia aurita and two hydromedusae (Sarsia tubulosa and Aequorea vitrina): effect of size, temperature and growth. Mar. Ecol. Prog. Ser. 330: 149-154.

107) Riisgård, H.U. (2007). Biomechanics and energy cost of the amphipod Corophium volutator filter-pump. Biol. Bull. 212: 104-114.

108) Riisgård, H.U. (2007). Feeding behaviour of the hydromedusa Aequorea vitrina. Scientia Marina 71: 395-404.

109) Riisgård, H.U., Lassen, J., Kortegaard, M., Møller, L.F., Friedrichs, M., Jensen, M.H., Larsen, P.S. (2007). Interplay between filter-feeding zoobenthos and hydrodynamics in the shallow Odense Fjord (Denmark) – Earlier and recent studies, perspectives and modelling. Estuar. Coast. Shelf S. 75: 281-295.

110) Riisgård, H.U., Larsen, P.S. (2007). Viscosity of seawater controls beat frequency of water-pumping cilia and filtration rate of mussels Mytilus edulis. Mar. Ecol. Prog. Ser. 343: 141-150.

111) Møller, L.F., Riisgård, H.U. (2007). Impact of jellyfish and mussels on algal blooms caused by seasonal oxygen depletion and nutrient release from the sediment in a Danish fjord. J. Exp. Mar. Biol. Ecol. 351: 92-105.

112) Møller, L.F., Riisgård, H.U. (2007). Feeding, bioenergetics and growth in the common jellyfish Aurelia aurita and two hydromedusae Sarsia tubulosa and Aequorea vitrina. Mar. Ecol. Prog. Ser. 346: 167-177.

113) Møller, L.F., Riisgård, H.U. (2007). Population dynamics, growth and predation impact of the common jellyfish, Aurelia aurita and two hydromedusae (Sarsia tubulosa and Aequorea vitrina) in Limfjorden (Denmark). Mar. Ecol. Prog. Ser. 346: 153-165.

114) Riisgård, H.U., Schotge, P. (2007). Surface deposit-feeding versus filter-feeding in the amphipod Corophium volutator. Mar. Biol. Res. 3: 421-427.

115) Riisgård, H.U., Bøttiger, L., Madsen, C.V., Purcell, J.E. (2007). Invasive ctenophore Mnemiopsis leidyi in Limfjorden (Denmark) in late summer 2007 – assessment of abundance and predation impact. Aquat. Invasions 2(4): 395-401.

116) Tendal, O.S., Jensen, K.R., Riisgård, H.U. (2007). Invasive ctenophore Mnemiopsis leidyi widely distributed in Danish waters. Aquat. Invasions 2(4): 455-460.

117) Riisgård, H.U., Jensen, M.H., Rask, N. (2008). Odense Fjord and Kerteminde Fjord/Kertinge Nor (Chapter 16, p. 361-394). In: Schiewer, U. (Ed.). Ecology of Baltic Coastal Waters. Ecological Studies 197. Springer-Verlag Berlin Heidelberg.

118) Huwer, B., Storr-Paulsen M., Riisgård, H.U., Haslob, H. (2008). Abundance, horizontal and vertical distribution of the invasive ctenophore Mnemiopsis leidyi in the central Baltic Sea, November 2007. Aquat. Invasions 3(2): 113-124.

119) Larsen, P.S., Vandt Madsen, C-M., Riisgård, H.U. (2008). Effect of temperature and viscosity on swimming velocity of the copepod Acartia tonsa, brine skrimp Artemia salina) and rotifer Brachionus plicalilis. Aquat. Biol. 4: 47-54.

120) Riisgård, H.U., P.S. Larsen (2009). Ciliary-propelling mechanism, effect of temperature and viscosity on swimming speed, and adaptive significance of the ‘jumping’ ciliate Mesodinium rubrum. Mar. Biol. Res. 5: 585-595.

121) Larsen, P.S., Riisgård, H.U. (2009). Viscosity and not biological mechanisms often controls the effects of temperature on ciliary activity and swimming velocity of small aquatic organisms. J. Exp. Mar. Biol. Ecol. 381: 67-73.

122) Riisgård, H.U., Okamura, B., Funch, P. (2010). Particle capture in ciliary filter-feeding gymnolaemate and phylactolaemate bryozoans – a comparative study. Acta Zool. 91: 416-425.

123) Riisgård, H.U., Barth-Jensen, C., Madsen, C.V. (2010). High abundance of the jellyfish Aurelia aurita excludes the invasive ctenophore Mnemiopsis leidyi to establish in a shallow cove (Kertinge Nor, Denmark). Aquat. Invasions 5(4): 347-356.

124) Riisgård, H.U., P.S. Larsen (2010). Particle-capture mechanisms in marine suspension-feeding invertebrates. Mar. Ecol. Prog. Ser. 418: 255-293.

125) Madsen, C.V., Riisgård, H.U. (2010). Ingestion-rate method for measurement of clearance rates of the ctenophore Mnemiopsis leidyi. Aquat. Invasions 5(4): 357-361.

126) Riisgård, H.U., Madsen, C.V. (2011). Clearance rates of ephyrae and small medusae of the common jellyfish Aurelia aurita offered different types of prey. J. Sea Res. 65: 51-57.

127) Riisgård, H.U., Jørgensen, B.H., Lundgreen, K., Storti, F., Walther, J.H., Meyer, K.E., Larsen, P.S. (2011). The exhalant jet of mussels, Mytilus edulis. Mar. Ecol. Prog. Ser. 437: 147-164.

128) Riisgård, H.U., Madsen, C.V, Barth, C., Purcell, J.E. (2011). Population dynamics and possible competition between the the indigenous scyphozoan Aurelia aurita and the invasive ctenophore Mnemiopsis leidyi in Limfjorden (Denmark). Aquat. Invasions 7(2): 147-162.

129) Larsen, P.S., Riisgård, H.U. (2011). Validation of the flow-through (FTC) and steady-state (SS) methods for clearance rate measurements in bivalves. Biol. Open 1(1): 6-11. https://doi.org/10.1242/bio.2011011

130) Riisgård, H.U., Egede, P.P., Saavedra, I.B. (2011). Feeding behaviour of mussels, Mytilus edulis, with a mini-review of current knowledge. J. Mar. Res., pp. 1-13. https://doi.org/10.1155/2011/312459

131) Riisgård, H.U., Andersen, P., Hoffmann, E. (2012). From fish to jellyfish in the eutrophicated Limfjorden (Denmark). Estuaries and Coasts 35: 701-713.

132) Riisgård, H.U., Lundgreen, K., Larsen, P.S. (2012). Field data and growth model for mussels Mytilus edulis in Danish waters. Mar. Biol. Res. 8: 683-700.

133) Riisgård, H.U., Jaspers, C., Serre, S., Lundgreen, K. (2012). Occurrence, inter-annual variability and zooplankton-predation impact of the invasive ctenophore Mnemiopsis leidyi and the native jellyfish Aurelia aurita in Limfjorden (Denmark) in 2010 and 2011. BioInvasions Rec. 1(3): 145-159.

134) Riisgård, H.U., Bøttiger, L., Pleissner, D. (2012). Effect of salinity on growth of mussels, Mytilus edulis, with special reference to Great Belt (Denmark). Open J. Mar. Sci. 2: 167-176.

135) Pleissner, D., Eriksen, N.T., Lundgreen, K., Riisgård, H.U. (2012). Biomass composition of blue mussels, Mytilus edulis, is affected by living site and species of ingested microalgae. ISRN Zoology 1: 902152. https://doi.org/10.5402/2012/902152

136 Larsen, P.S., Lundgreen, K., Riisgård, H.U. (2013). Bioenergetic model predictions of actual growth and allometric transitions during ontogeny of juvenile blue mussels Mytilus edulis. In: Nowak J., Kozlowski, M. (eds.): Mussels: ecology, life habits and control. Nova Science, New York, pp. 101-122.

137) Riisgård, H.U., Lüskow, F., Pleissner, D., Lundgreen, K., López, M.A.P. (2013). Effect of salinity on filtration rates of mussels Mytilus edulis with special emphasis on dwarfed mussels from the low-saline Central Baltic Sea. Helgol. Mar. Res. 67: 591-598.

138) Riisgård, H.U., Pleissner, D., Lundgreen, K., Larsen P.S. (2013). Growth of mussels Mytilus edulis at algal (Rhodomonas salina) concentrations below and above saturation levels for reducted filtration rate. Mar. Biol. Res. 9(10): 1005-1017.

139) Pleissner, D., Lundgreen, K., Lüskow, F., Riisgård, H.U. (2013). Fluorometer controlled apparatus designed for long-term algal-feeding experiments and environmental effect studies with mussels. J. Mar. Biol. 1: 401961. https://doi.org/10.1155/2013/401961

140) Riisgård, H.U., Lundgreen, K., Larsen, P.S. (2014). Potential for production of ‘mini-mussels’ in Great Belt (Denmark) evaluated on basis of actual growth of young mussels Mytilus edulis. Aquac. Int. 22: 859-885.

141) Riisgård, H.U., Larsen, P.S., Pleissner, D. (2014). Allometric equations for maximum filtration rate in blue mussels Mytilus edulis and importance of condition index. Helgol. Mar. Res. 68: 193-198.

142) Shiganova, T., Riisgård, H.U., Ghabooli, S., Tendal O.S. (2014). First report on Beroe ovata in an unusual mixture of ctenophores in Great Belt (Denmark). Aquat. Invasions 9(1): 111-116.

143) Larsen, P.S., Filgueira, R., Riisgård, H.U. (2014). Somatic growth of mussels Mytilus edulis in field studies compared to predictions using BEG, DEB, and SFG models. J. Sea Res. 88: 100-108.

144) Riisgård, H.U., Mulot, M., Merino, L., Pleissner, D. (2014). Effect of salinity-changing rates on filtration activity of mussels from two sites within the Baltic Mytilus hybrid zone: the brackish Great Belt (Denmark) and the low saline Central Baltic Sea. Open J. Mar. Sci. 4: 101-109.

145) Riisgård, H.U., Larsen, P.S., Turja, R., Lundgreen K. (2014). Dwarfism of mussels in the low saline Baltic Sea – growth to the salinity limit. Mar. Ecol. Prog. Ser. 517: 181-192.

146) Riisgård, H.U., Goldstein, J. (2014). Jellyfish and ctenophores in Limfjorden (Denmark) – mini-review, with recent new observations. J. Mar. Sci. Eng. 2: 593-615. https://doi.org/10.3390/jmse2040593

147) Riisgård, H.U. (2014). ‘Mini-mussels’ – new opportunities and environmentally friendly production. Fish. Aquac. J. 5: 3. https://doi.org/10.4172/2150-3508.1000e109

148) Riisgård, H.U. (2015). Filter-feeding mechanisms in crustaceans (Chapter 15, p. 418-463). In: Thiel, M., Watling, L. (Eds.) Life Styles and Feeding Biology, Volume II. The Natural History of Crustaceans, Oxford University Press.

149) Riisgård, H.U., Larsen, P.S. (2015). Physiologically regulated valve-closure makes mussels long-term starvation survivors: test of hypothesis. J. Molluscan Stud. 81: 303-307.

150) Riisgård, H.U., Funch P., Larsen P.S. (2015). The mussel filter-pump – present understanding, with a re-examination of gill preparations. Acta Zool. 96: 273-282.

151) Riisgård, H.U., Zalacáin, D., Jeune, N., Wiersma, J.B., Lüskow, F, Pleissner, D. (2015). Adaptation of brine shrimp Artemia salina (Branchiopoda: Anostraca) to filter-feeding – effects of body size and temperature on filtration and respiration rates. J. Crust. Biol. 35(5): 650-658.

152) Riisgård, H.U., Lundgreen, K., Pleissner, D. (2015). Environmental factors and seasonal variation in density of mussel larvae (Mytilus edulis) in Danish waters. Open J. Mar. Sci. 5: 280-289.

153) Riisgård, H.U., Goldstein, J., Lundgreen, K., Lüskow, F. (2015). Jellyfish and ctenophores in the environmentally degraded Limfjorden (Denmark) during 2014 – species composition, population densities and predation impact. Fish. Aquac. J. 6: 3. https://doi.org/10.4172/2150-3508.1000137

154) Goldstein, J., Riisgård, H.U. (2016). Population dynamics and factors controlling degrowth of the common jellyfish, Aurelia aurita, in a temperate semi-enclosed cove (Kertinge Nor, Denmark). Mar. Biol. 163: 33-44.

155) Riisgård, H.U., Larsen, P.S. (2017). Filter-feeding zoobenthos and hydrodynamics. In: Marine animal forests: the ecology of benthic biodiversity hotspots (Editors: Rossi S., Bramanti L., Gori A., Orejas C.). Volume 2, Chapter 28, p. 787-811. Springer International Publishing AG 2017. https://doi.org/10.1007/978-3-319-17001-5_19-1

156) Tang, B., Riisgård, H.U. (2016). Physiological regulation of valve-opening degree enables mussels Mytilus edulis to overcome starvation periods by reducing the oxygen uptake. Open J. Mar. Sci. 6: 341-352.

157) Larsen, P.S., Riisgård, H.U. (2016). Growth-prediction model for blue mussels (Mytilus edulis) on future optimally thinned farm-ropes in Great Belt (Denmark). J. Mar. Sci. Eng. 4: 42. https://doi.org/10.3390/jmse4030042

158) Riisgård, H.U., Kumala, L., Charitonidou, K. (2016). Using the F/R-ratio for an evaluation of the ability of the demosponge Halichondria panicea to nourish solely on phytoplankton versus free-living bacteria in the sea. Mar. Biol. Res. 12(9): 907-916.

159) Larsen, P.S., Andrup, P., Tang, B., Riisgård, H.U. (2016). Biomixing in stagnant water above population of blue mussels (Mytilus edulis). J. Oceanogr. Mar. Res. 4: 2. https://doi.org/10.4172/2572-3103.1000147

160) Lüskow, F., Riisgård, H.U. (2016). Population predation impact of jellyfish (Aurelia aurita) controls the maximum umbrella size and somatic degrowth in temperate Danish waters (Kertinge Nor and Mariager Fjord). Vie et Milieu – Life & Environment 66: 233-243.

161) Kumala, L. Riisgård, H.U., Canfield, D.E. (2017). Osculum dynamics and filtration activity in small single-osculum demosponge (Halichondria panicea) explants. Mar. Ecol. Prog. Ser. 572: 117-128

162) Riisgård, H.U. (2017). General Ecology – Outline of contemporary ecology for university students. Bookboon.com Ltd. ISBN 978-87-403-1821-0. https://bookboon.com/dk/general-ecology-ebook

163) Riisgård, H.U. (2017). Invasion of Danish and adjacent waters by the comb jelly Mnemiopsis leidyi – 10 years after. Open J. Mar. Sci. 7: 458-471.

164) Fenchel, T., Jørgensen, B.B., Riisgård, H.U. (2017). Fake news: Mussel farming a “new climate bomb”. Fish. Aquac. J. 8: e127. https://doi.org/10.4172/2150-3508.1000e127

165) Tang, B., Riisgård, H.U. (2018). Relationship between oxygen concentration, respiration and filtration rate in blue mussel Mytilus edulis. J. Oceanol. Limnol. 36(2): 395-404.

166) Larsen P.S., Lüskow, F., Riisgård, H.U. (2018). Too much food may cause reduced growth of blue mussels (Mytilus edulis) – Test of hypothesis and development of ‘high Chl a BEG-model’. J. Mar. Syst, 180: 299-306.

167) Riisgård, H.U., Larsen, P.S. (2018). Thermal and viscous effects on ciliary suspension-feeding bivalves – no need for a new explanation: Comment on Specht & Fuchs (2018). Mar. Ecol. Prog. Ser. 596: 263-265.

168) Goldstein, J., Jürgensen, C., Steiner, U.K., Riisgård, H.U. (2018). Density-driven water exchange controls seasonal declines in jellyfish (Aurelia aurita) abundance in a Danish fjord system. Mar. Ecol. Prog. Ser. 597: 137-145.

169) Lüskow, F., Riisgård, H.U. (2018). In situ filtration rates of blue mussels (Mytilus edulis) measured by an open-top chamber method. Open J. Mar. Sci. 8: 395-406.

170) Goldstein, J., Riisgård, H.U., Larsen, P.S. (2019). Exhalant jet speed of single-osculum explants of the demosponge Halichondria panicea and basic properties of the sponge-pump. J. Exp. Mar. Biol. Ecol. 511: 82-90.

171) Lüskow, F., Riisgård, H.U., Solovyeva, V., Brewer, J.R. (2019). Seasonal changes in bacteria and phytoplankton biomass control the condition index of the demosponge Halichondria panicea in temperate Danish waters. Mar. Ecol. Prog. Ser. 608: 119-132.

172) Asadzadeh, S.S., Larsen, P.S., Riisgård, H.U., Walther, J.H. (2019). Hydrodynamics of the leucon sponge pump. J. R. Soc. Interface 16: 20180630. https://doi.org/10.1098/rsif.2018.0630

173) Lüskow, F., Kløve-Mogensen, K., Tophøj, J., Pedersen, L. H., Riisgård, H.U., Eriksen, N.T. (2019). Seasonality in lipid content of the demosponges Halichondria panicea and H. bowerbanki at two study sites in temperate Danish waters. Front. Mar. Sci. – Aquatic Physiology 6: 328.

174) Kealy, R.A, Busk, T., Goldstein, J., Larsen, P.S., Riisgård, H.U. (2019). Hydrodynamic characteristics of aquiferous modules in the demosponge Halichondria panicea. Mar. Biol. Res. 15: 531-540. 

175) Goldstein, J., Bisbo, N. Funch, P., Riisgård, H.U. (2019). Contraction-expansion and morphological changes of the aquiferous system in the demosponge Halichondria panicea. Front. Mar. Sci. – Aquatic Physiology 7: 113. https://doi.org/10.3389/fmars.2020.00113 

176) Larsen, P.S., Riisgård, H.U. (2021). Pumping rate and size of demosponges – towards an understanding using modeling. J. Mar. Sci. Eng. 9: 1308. https://doi.org/10.3390/jmse9111308

177 Riisgård, H.U., Larsen P.S. (2022). Bioenergetic model and specific growth rates of jellyfish Aurelia aurita. Mar. Ecol. Prog. Ser. 688: 49-56. https://doi.org/10.3354/meps14024

178 Riisgård H.U., Larsen, P.S. (2022). Actual and model-predicted growth of sponges – with a bioenergetic comparison to other filter-feeders. J. Mar. Sci. Eng. 10: 607. https://doi.org/10.3390/jmse10050607

179) Riisgård, H.U., Larsen, P.S. (2022) Filtration rates and scaling in demosponges. J. Mar. Sci. Eng. 10: 643. https://doi.org/10.3390/jmse10050643

180) Larsen, P.S., Riisgård, H.U. (2022). Seize-specific growth of filter-feeding marine invertebrates. J. Mar. Sci. Eng. 10: 1226. https://doi.org/10.3390/jmse10091226

181) Riisgård, H.U. (2022). Superfluous feeding and growth of jellyfish Aurelia aurita. J. Mar. Sci. Eng. 10: 1368. https://doi.org/10.3390/jmse10101368

182) Riisgård, H.U. (2023). Filter-feeding in marine invertebrates. Printed edition of special sssue published in J. Mar. Sci. Eng., 79 pp. ISBN 978-3-0365-5868-4. https://www.mdpi.com/journal/jmse   

183) Funch, P., Kealy, R.A, Goldstein, J., Brewer, J.R., Solovyeva, V., Riisgård, H.U. (2023). Fate of microplastic captured in the marine demosponge Halichondria panicea. Mar. Pollut. Bull. 194: 115403.

184) Riisgård, H.U., Kealy, R.A, Goldstein J., Brewer J., Solovyeva V., Funch, P. (2023). Choanocyte dimensions and pumping rates in the demosponge Halichondria panicea. J. Exp. Mar. Biol. Ecol. 569: 151957. https://doi.org/10.1016/j.jembe.2023.151957 

185) Riisgård, H.U. (2024). Oxygen extraction efficiency and tolerance to hypoxia in sponges. J. Mar. Sci. Eng. 12(1): 138. https://doi.org/10.3390/jmse12010138

186) Riisgård, H.U., Lüskow, F., Larsen, P.S. (2024). Growth, filtration, and respiration characteristics of small single-osculum demosponge Halichondria panicea explants. J. Exp. Biol. 227: jeb247132. https://doi.org/10.1242/jeb.247132

187) Goldstein, J., Riisgård, H.U., Kealy, R.A., Funch P. (2024). Particle loads, contractile responses and cleaning in the demosponge Halichondria panicea. J. Exp. Mar. Biol. Ecol. 577: 152021.

188) Lees, M.K., Riisgård, H.U., Larsen, P.S. (2024) Flow pattern, particle capture, and contractile behaviour in the demosponge Halichondria panicea. Mar. Biol. Res. 1-10. https://doi.org/10.1080/17451000.2024.2390527

189) Riisgård, H.U., Larsen P.S. (2024). Energy costs of the sponge pump. Mar. Ecol. Prog. Ser. 746: 141-151. 

190) Goldstein, J., Bisbo, N., Funch, P., Daugaard, N.D., Larsen, P.S., Brewer, J.R., Riisgård, H.U. (2024). Aquiferous system, filtration rates and hydrodynamics of a syconoid calcareous sponge Urna sp. Mar. Biol. 171: 216. https://doi.org/10.1007/s00227-024-04532-0

191) Kumala, L., Riisgård, H.U. (2024). Growth, filtration and respiration under superfluous feeding in single-osculum single-osculum Halichondria panicea sponges. Oceans 5: 965-981. https://www.mdpi.com/2673-1924/5/4/55

192) Riisgård, H.U., Larsen, P.S. (2024). Catching the particles: Role of ciliary bands in filter-feeding marine invertebrates. Invertebr. Zool. (accepted)

193) Riisgård, H.U., Larsen, P.S. (2024). Effect of temperature on filtration in the blue mussel, Mytilus edulis – Comments on Rosa et al. (2024) (Invertebrate Biology, in review)

1) Riisgård H.U. (ed.) (1978). Olieforurening i det marine miljø. Rapport fra Miljøstyrelsens fagkyndige udvalg. Miljøstyrelsen, november 1978, 88 pp.

2) Riisgård, H.U. (1980). Havforureningslaboratoriets forskningsprogram. I: Kystnære farvande. Særudgave af Ugeskrift for Jordbrug, 51-57.

3) Riisgård, H.U. (1980). Tungmetaller, kemiske tilstandsformer og biologiske effekter i det marine miljø. I: Forureningssituationen i Skagerak-Kattegat. Nordisk udredningsserie B 24, 111-126.

4) Riisgård, H.U. (1981). Tungmetaller I. Fisk og Hav, 37-43.

5) Riisgård, H.U. (1981). Det giftige metal trænger ind i cellen. Forskningen & Samfundet, 4: 3-6.

6) Riisgård, H.U., G. Ærtebjerg Nielsen (1981). Miljøproblemerne i Hjarbæk Fjord. Kaskelot, 49: 16-27.

7) Riisgård, H.U. (1982). Olieforurening – spredningsveje og biologiske effekter. Kaskelot, 51: 3-15.

8) Riisgård, H.U. (1982). Biologisk monitering: Forureningsovervågning i havmiljøet. Stads- og Havneingeniøren, 2: 34-39.

9) Riisgård, H.U. (1982). Cheminovas forurening før og nu. Kaskelot, 52: 3-15.

10) Riisgård, H.U. (1982). Biologiske effektstudier i havmiljøet – Strategier og metoder til studier af subletale effekter hos marine organismer. Biologforbundets Forlag, 32 pp.

11) Riisgård H.U., A. Randløv, E. Poulsen (1982). Miljøundersøgelser i Limfjorden. Miljøstyrelsens Havforureningslaboratorium, maj 1982,108 pp.

12) Riisgård, H.U., A. Randløv (1982). Kviksølvbelastningen af farvandene omkring Harboøre Tange og Limfjorden belyst ved hjælp af blåmuslinger. Miljøstyrelsens Havforureningslaboratorium, maj 1982, 56 pp.

13) Riisgård, H.U. (1983). Superfos og tungmetaller i Lillebælt. Kaskelot, 54: 2-23.

14) Riisgård, H.U. (1984). Næringssalte og iltmangel i Limfjorden. Kaskelot, 58: 1-14.

15) Riisgård, H.U. (1984). Cheminova – en ren giftfabrik? Natur & Miljø, 3: 28-32.

16) Riisgård, H.U. (1985). Grundrids af kviksølvs økotoxikologi i akvatisk miljø. Vand & Milj4, 4: 163-167.

17) Riisgård, H.U. (1985). Superfos’ udledninger af kobber, bly og lanthanider. Kaskelot, 61: 16-19.

18) Riisgård, H.U. (1985). Kviksølv i marine fødekæder. Kviksølvforurening og tekniske løsningsmuligheder. Red. K. Christiansen. Teknologisk Institut, 69-75.

19) Riisgård, H.U. (1986). Økotoxikologisk forskning ved Biologisk Institut. Odense Universitets årsberetning for 1985, 25-36.

20) Famme, P., H.U. Riisgård (1986). Ny metode til belysning af kviksølvs ophobning i marine fødekæder. Dansk Kemi: 6/7: 188-191.

21) Riisgård, H.U. (1986, 1990 2. udg.). Basisbog i økologi. Gads Forlag, 129 pp.

22) Riisgård, H.U. (1986). Forurening af vandet – et internationalt problem. Danmarks amtsråd nr. 1011, 21-22.

23) Riisgård, H.U. (1987): Havforskningen må styrkes. Forskningen & Samfundet, 1: 28-31.

24) Riisgård, H.U. (1987): Tandlægernes kviksølvforurening. Tandlægebladet 91(10): 468-471.

25) Riisgård, H.U. (1987). Nordsøens forurening. Kaskelot, 72: 2-17.

26) Riisgård, H.U. (1990). Drivhuseffekt og globalt klimaskift. Kaskelot, 86: 2-12.

27) Riisgård, H.U. (1990). Ozonlagets nedbrydning. Kaskelot, 86: 12-21.

28) Riisgård, H.U., I. Clausen, F. Møhlenberg, J.K. Petersen, N.J. Olesen, M., P.B. Christensen, M. Møller, P. Andersen (1994) Filtratorer, planktondynamik og biologisk struktur i Kertinge Nor. Havforskning fra Miljøstyrelsen, nr. 45, 87  

29) Riisgård, H.U., P.S. Larsen (1996). Biologiske filter-pumper. Naturens Verden, 8: 307-318.

30) Riisgård, H.U., C. Jürgensen, F.Ø. Andersen (1997). Kertinge Nor. Kaskelot, 114: 2-19.

31) Riisgård, H.U., C. Jürgensen (1999). Filtrerende dyr og plankton-dynamik. Vand & Jord, nr. 1: 16-17.

32) Riisgård, H.U., P.S. Larsen, C. Nielsen (2002). Filtrerende bryozoer – partikler og strømmende vand. Naturens Verden 5: 12-23.

33) Riisgård, H.U., P.S. Larsen (2003). Suspensionsernæring – om filtrerende dyrs liv i en tynd algesuppe. Vand & Jord, nr. 1: 4-7.

34) Riisgård, H.U. & P.S. Larsen (2003). Mosdyrene har klaret naturens udfordringer i over 500 mio. år. Naturlige Udfordringer – Formidling af Naturvidenskab og Teknik til Unge. Udgivet på https://www.natnet.dk

35) Seerup, D.F, E. Glob, H.U. Riisgård (2003). Filtrerende bunddyr i Odense Fjord. Vand & Jord, nr.3: 96-100 )

36) Riisgård, H.U., O. Moeslund (2004). Gopler i Limfjorden. Vand & Jord, nr. 2: 48-51.

37) Riisgård,H.U. & P.S. Larsen (2004). “Filtrerende dyr og biologiske filter-pumper”. Naturlige Udfordringer – Formidling af Naturvidenskab & Teknik til Unge. Udgivet på https://www.natnet.dk

38) Riisgård, H.U. (2006). “Tæpper af gopler og millioner af krabber”. Bidrag til side 107-110 i bogen Limfjorden af Jan Skriver. Udgivet af Limfjordsamterne.

39) Riisgård, H.U., L.F. Møller (2007). Vandmænd og andre gopler i Limfjorden. Vand & Jord, nr. 2: 66-69.

40) Riisgård, H.U. (2007). Vindmøller ødelægger den skønne natur. Tidsskrift om miljø og samfund – Miljøsk, nr. 47: 28-29.

41) Riisgård, H.U. (2007). Invasiv Mnemiopsis-ribbegople i danske farvande. Vand & Jord, nr. 3: 89-90.

42) Tendal, O.S., H.U. Riisgård, K.R. Jensen (2007). Dræber-ribbegoplen i danske farvande – en folkelig undersøgelse. Dyr i natur og museum, Statens Naturhistoriske Museum (accepteret), se også Folkelig Undersøgelse på https://statensnaturhistoriskemuseum.dk/zm-nyhedsliste/nyhed051007/

43) Riisgård, H.U., L. Bøttiger, C.-M. Vandt Madsen (2007). Forekomst af den invasive ribbegople Mnemiopsis leidui i Limfjorden i august og september 2007 – vurdering af mulige effekter. Rapport fra Marinbiologisk Forskningscenter, Syddansk Universitet, september 2007, pp. 47.

44) Tendal, O.S., Riisgård, H.U., Jensen, K.R. (2007). Dræber-ribbegoplen i danske farvande – en folkelig undersøgelse. Dyr i natur og museum. Zoologisk Museum, nr. 2: 2-5.

45) Riisgård, H.U. (2008). Dræbergopler i danske farvande. Naturens Verden nr. 7-8: 2-9.

46) Riisgård, H.U., O. Tendal (2009). Goplerne kommer. Kaskelot 178: 26-33.

47) Riisgård, H.U. (2011) Gigantiske olie-faner i Den Mexikanske Golf. Miljøsk, jan. 2011, nr. 58

48) Riisgård, H.U., Tendal, O. (2010). Invasive comb jellies (Mnemiopsis leidyi) in Danish waters. Pool32Mag, vol:2, p. 212-225 (E-publication in fly fishing e-magazine): published 25 September 2010. http://www.pagegangster.com/p/J8Wtt/

49) Riisgård, H.U. (2014). Cheminovas kviksølvforurening ved Harboøre Tange – skal fiskeriforbuddet opretholdes? Dansk Kemi, 95, nr. 11, s. 7.

50) Riisgård, H.U., Jensen, K.R., Tendal, O.S. (2017) Dræbergoplen i danske farvande – 10 år efter. Kaskelot nr. 215, s. 24-28

51) Riisgård, H.U. (2017). Cheminovasagen – som jeg oplevede det dengang. Side 367-377 i bogen: Fisk kan ikke tale. En fiskers kamp mod Cheminovas forurening (red. Jens Østergaard & Flemming H. Madsen). Forlaget Rebild

52) Riisgård, H.U. (2017). Økologi – grundtræk af den moderne økologi for universitetsstuderende, pp-145. ISBN 978-87-403-1759-6. https://bookboon.com/da/oekologi-ebook

53) Riisgård, H.U. (2022). Da universitetet kom til Kerteminde. Fjordbiologisk Laboratorium (1990-2020). Cartha 2021/2022 side 5-18, Årsskrift for Østfyns Museer. ISBN 978-87-92620-95-8. 

54) Riisgård, H.U. (2023). Forord (med personligt supplement) til bogen “Limfjorden i med- og modvind” af Jens Østergaard. Forlaget Legimus, 255 sider. 

55) Riisgård, H.U. (2024). Havmiljøet – ude af balance? Hindsholm Magasin nr. 4, s. 20-21. Download pdf