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Deep Demersal Fish Assemblage Structure in the Porcupine Seabight (Eastern North Atlantic): Results of Single Warp Trawling at Lower Slope to Abyssal Soundings

Published online by Cambridge University Press:  11 May 2009

N. R. Merrett
Affiliation:
Port Erin Marine Laboratory (University of Liverpool), Port Erin, Isle of Man
R. L. Haedrich
Affiliation:
Ocean Sciences Centre, MemorialUniversity of Newfoundland, St. John's, Newfoundland, A1B X9, Canada
J. D. M. Gordon
Affiliation:
Dunstaffnage Marine Laboratory, PO Box 3, Oban, Argyll, PA AD
M. Stehmann
Affiliation:
Ichthyologie, Institut fur Seefischerei, c/o Zoological Museum, Martin-Luther-King-Platz 3, D-2000 Hamburg 13, Germany

Extract

The dynamics of clearance, segregation and elimination of a marine bacterium, Moraxella sp., by the shore crab, Carcinus maenas (L.) has been studied utilizing fluorescent and radiolabelling techniques. In addition to the gills, the hepatopancreas was a major site of bacterial accumulation with sequestration occurring within haemocyte clumps and groups of stationary cells in this organ. The heart, excretory organ and subcuticular tissues also incorporated bacteria, but to a lesser extent. By the first day post-injection, many of the segregated micro-organisms had been removed from the organs. This latter process was not due to the exodus of laden haemocytes or of intact cell clumps from the host but seemed to result from lytic action by the host blood cells. Little material arising from such bacterial/haemocytic interaction was, however, immediately excreted, and much was relocated in the general body tissues as well as the gill nephrocytes.

Type
Research Article
Copyright
Copyright © Marine Biological Association of the United Kingdom 1991

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References

REFERENCES

Crabtree, R.E.Sulak, K.J. & Musick, J. A 1985. Biology and distribution of species of Polyacanthonotus (Pisces: Notacanthiformes) in the western North Atlantic. Bulletin of Marine Science, 36,235248.Google Scholar
Cushing, D.H. 1982. Climate and Fisheries. London: Academic Press.Google Scholar
Forster, G.R. 1968. Line fishing on the continental slope. II. Journal of the Marine Biological Association of the United Kingdom, 48,479483.CrossRefGoogle Scholar
Gordon, J.D.M. 1979. Lifestyle and phenology in deep sea anacanthine teleosts. Symposia of the Zoological Society of London, no. 44, 327359.Google Scholar
Gordon, J.D.M. & Duncan, J.A.R. 1985. The ecology of the deep-sea benthic and benthopelagic fish on the slopes of the Rockall Trough, northeastern Atlantic. Progress in Oceanography, 15,3769.CrossRefGoogle Scholar
Gordon, J.D.M. & Duncan, J. A.R. 1987. Deep-sea bottom-living fishes at two repeat stations at 2200 and 2900 m in the Rockall Trough, northeastern Atlantic Ocean. Marine Biology, 96, 309325.CrossRefGoogle Scholar
Gordon, J.D.M. & Mauchline, J. 1990. Depth-related trends in diet of a deep-sea bottom-living fish assemblage of the Rockall Trough. In Trophic Relationships in the Marine Environment. Proceedings of the 24th European Marine Biological Symposium, Oban, 1989 (ed. Barnes, M. and Gibson, R.N.) pp. 439452. Aberdeen University Press.Google Scholar
Graham, M.S.Haedrich, R.L. & Fletcher, G.L. 1985. Hematology of three deep sea fishes: a reflection of low metabolic rates. Comparative Biochemistry and Physiology, 80A, 7984.CrossRefGoogle ScholarPubMed
Grassle, J.F.Sanders, H.L.Hessler, R.R.Rowe, G.T. & McLellan, T. 1975. Pattern and zonation: a study of the bathyal megafauna using the research submersible ‘Alvin’. Deep-Sea Research, 22, 457481.Google Scholar
Haedrich, R.L. & Merrett, N.R. 1988. Summary atlas of deep-living demersal fishes in the North Atlantic Basin. Journal of Natural History, 22, 1325–1362.CrossRefGoogle Scholar
Haedrich, R.L. & Polloni, P.T. 1976. A contribution to the life history of a small rattail fish, Coryphaenoides carapinus. Bulletin of the Southern California Academy of Sciences, 75, 203211.Google Scholar
Haedrich, R.L. & Rowe, G.T. 1977. Megafaunal biomass in the deep sea. Nature, London, 269, 141142.CrossRefGoogle Scholar
Heincke, F. 1913. Üntersuchungen iiber die Scholle-Generalbericht I. Schollenfischerei und Schonmassregeln. Vorlaeufige Kurze Übersicht uber die wichtigsten Ergebnisse des Berichts. Rapport et Procès-verbaux des Réunions. Conseil Permanent International pour l'Exploration de la Mer, 16,170.Google Scholar
Merrett, N.R. 1987. A zone of faunal change in assemblages of abyssal demersal fish in the eastern North Atlantic: a response to seasonality in production? Biological Oceanography, 5,137151.Google Scholar
Merrett, N.R. & Domanski, P.A. 1985. Observations on the ecology of deep-sea bottom-living fishes collected off northwest Africa: II. The Morrocan slope (27°–34°N), with special reference to Synaphobranchus kaupi. Biological Oceanography, 3, 349399.Google Scholar
Merrett, N.R.Gordon, J.D.M.Stehmann, M. & Haedrich, R.L. 1991. Deep demersal fish assemblage structure in the Porcupine Seabight (eastern North Atlantic): slope sampling by three different trawls compared. journal of the Marine Biological Association of the United Kingdom, 71, 329358.CrossRefGoogle Scholar
Merrett, N.R. & Marshall, N.B. 1981. Observations on the ecology of deep-sea bottom-living fishes collected off northwest Africa (08°–27°N). Progress in Oceanography, 9,185244.CrossRefGoogle Scholar
Middleton, R.W. & Musick, J A. 1986. The abundance and distribution of the family Macrouridae (Pisces: Gadiformes) in the Norfolk Canyon area. Fishery Bulletin. National Oceanic and Atmospheric Administration of the United States, 84, 3562.Google Scholar
Pearcy, W.G.Stein, D.L. & Carney, R.S. 1982. The deep-sea benthic fish fauna of the northeastern Pacific Ocean on Cascadia and Tufts Abyssal Plains and adjoining continental slopes. Biological Oceanography, 1, 375428.Google Scholar
Polloni, P.Haedrich, R.L.Rowe, G.T. & Clifford, Cm. 1979. The size depth relationship in deep ocean animals. Internationale Revue der Gesamten Hydrobiologie, 64, 3946.CrossRefGoogle Scholar
Priede, I.G.Smith, K.L. Jr & Armstrong, J.D. 1990. Foraging behavior of abyssal grenadier fish: inferences from acoustic tagging and tracking in the North Pacific Ocean. Deep-Sea Research, 37, 81101.CrossRefGoogle Scholar
Rice, A.L.Billett, D.S.M.Thurston, M.H. & Lampitt, R.S. 1991. The Institute of Oceanographic Sciences benthic biology programme in the Porcupine Seabight: background and general introduction, journal of the Marine Biological Association of the United Kingdom, 71, 281310.CrossRefGoogle Scholar
Smith, K.L. Jr, 1978. Metabolism of the abyssopelagic rattail Coryphaenoides armatus measured in situ. Nature, London, 274, 362364.CrossRefGoogle Scholar
Snelgrove, P.V.R. & Haedrich, R.L. 1985. Structure of the deep demersal fish fauna off Newfoundland. Marine Ecology Progress Series, 27, 99107.CrossRefGoogle Scholar
Stehmann, M. & Buerkel, D.L. 1984. Chimaeridae. In Fishes of the North-eastern Atlantic and the Mediterranean, vol. 1 (ed. Whitehead, P.J.P. et al) pp. 212215. Paris: UNESCO.Google Scholar
Wenner, C. A. & Musick, J. A. 1977. Biology of the morid fish Antimora rostrata in the western North Atlantic. Journal of the Fisheries Research Board of Canada, 34, 23622368.CrossRefGoogle Scholar