Abstract
Overall comparisons of marine pelagic productions in different systems are speculative to a high degree. Yet they often bring to our attention processes which have not been sufficiently investigated. One such process may be the decrease of fish production due to the change in the diatom/flagellate ratio. The following hypothesis is discussed in the light of recent investigations: An increasing development of flagellates caused by some types of pollution or climatic changes not only may increase the number of trophic levels and thereby, decrease fish production, but also may cause a change in the flow of biomass from fish to ctenophores and other planktonic predators, thereby again decreasing the harvest available for human consumption.
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Literature Cited
Dickie, L. M., 1973. Management of fisheries; ecological subsystems. Trans. Am. Fish. Soc.102, 470–480.
Dunstan, W. M., Atkinson, P. P. & Natoli, J., 1975. Stimulation and inhibition of phytoplankton growth by low molecular weight hydrocarbons. Mar. Biol.31, 305–310.
Fisher, N. S., 1976. North Sea phytoplankton. Nature, Lond.259, 160.
Frost, B. W., 1972. Effects of size and concentration of food particles on the feeding behaviour of the marine planktonic copepodCalanus pacificus. Limnol. Oceanogr.17, 805–815.
Greve, W., 1971. Ökologische Untersuchungen an Pleurobrachia pileus 1. Freilanduntersuchungen. Helgoländer wiss. Meeresunters.22, 303–325.
—, 1972. Ökologische Untersuchungen an Pleurobrachia pileus 2. Laboratoriumsuntersuchungen. Helgoländer wiss. Meeresunters.23, 141–164.
—, 1977. Interspecific interaction: the analysis of complex structures in carnivorous zooplankton populations. Helgoländer wiss. Meeresunters.30, 83–91.
Grice, G. D., Reeve, M. R., Koeller, P. & Menzel, D. W., 1977. The use of large volume, transparent, enclosed sea-surface water columns in the study of stress on plankton ecosystems. Helgoländer wiss. Meeresunters.30, 118–133.
Koeller, P. & Parsons, T. R., 1976. The growth of young salmonids in controlled ecosystems. Bull. mar. Sci. (In press).
LeBrasseur, R. J., 1969. Growth of juvenile chum salmon (Oncorhynchus keta) under different feeding regimes. J. Fish. Res. Bd Can.26, 1631–1645.
Landry, M. R., 1976. The structure of marine ecosystems: an alternative. Mar. Biol.35, 1–7.
Leong, R. J. H. & O'Connell, C. P., 1969. A laboratory study of particulate and filter feeding of northern anchovy (Engraulis mordax). J. Fish. Res. Bd Can.26, 557–582.
Malone, T. C., 1971. The relative importance of nanoplankton and netplankton as primary producers in the California Current system. Fish. Bull. U.S.69, 799–820.
O'Connell, C. P., 1972. The interrelation of biting and filtering in the feeding activity of the northern anchovy (Engraulis mordax). J. Fish. Res. Bd Can.29, 285–293.
— & Zweifel, J. R., 1972. A laboratory study of particulate and filter feeding of the Pacific mackerel,Scomber japonicus. Fish. Bull. U.S.70, 973–981.
Parsons, T. R., 1974. Controlled ecosystem pollution experiment (CEPEX) Environm. Conservation1, 224.
— & LeBrasseur, R. J., 1970. The availability of food to different trophic levels in the marine food chain. In: Marine food chains, Ed. by J. H. Steele. Oliver & Boyd, Edinburgh, 325–343.
— & Takahashi, M., 1973. Environmental control of phytoplankton cell size. Limnol. Oceanogr.18, 511–515.
—, LeBrasseur, R. J. & Barraclough, W. E., 1970. Levels of production in the pelagic environment of the Strait of Georgia, British Columbia: A Review. J. Fish. Res. Bd Can.27, 1251–1264.
—, LeBrasseur, R. J. & Fulton, J. D., 1967. Some observations on the dependence of zooplankton grazing on the cell size and concentration of phytoplankton blooms. J. Oceanogr. Soc. Japan23, 10–17.
—, Li, W. K. W. & Waters, R., 1976. Some preliminary observations on the enhancement of phytoplankton growth by low levels of mineral hydrocarbons. Hydrobiologia,5, 85–89.
Poulet, S. A., 1974. Seasonal grazing ofPseudocalanus minutus on particles. Mar. Biol.25, 109–123.
Richman, S., & Rogers, J. M., 1969. The feeding ofCalanus helgolandicus on synchronously growing populations of the marine diatomDitylum brightwellii. Limnol. Oceanogr.14, 701–709.
Ryther, J. H., 1969. Photosynthesis and fish production in the sea. Science, N.Y.166, 72–76.
Semina, H. J., 1972. The size of phytoplankton cells in the Pacific Ocean. Int. Revue ges. Hydrobiol.57, 177–205.
Smith, J., 1968. Torrey Canyon — pollution of marine life. Report by the Plymouth Laboratory of the Marine Biological Association of the U.K., London. Cambridge Univ. Press, London, 196 pp.
Thomas, W. H. & Seibert, D. L. R. Effects of copper on enclosed marine phytoplankton assemblages: taxonomic composition of the phytoplankton. Bull. mar. Sci. (In press).
Wangersky, P. J., 1977. The role of particulate matter in the productivity of surface waters. Helgoländer wiss. Meeresunters.30, 546–564.
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Greve, W., Parsons, T.R. Photosynthesis and fish production: Hypothetical effects of climatic change and pollution. Helgolander Wiss. Meeresunters 30, 666–672 (1977). https://doi.org/10.1007/BF02207869
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DOI: https://doi.org/10.1007/BF02207869