By F. R. Harden Jones (auth.), James D. McCleave, Geoffrey P. Arnold, Julian J. Dodson, William H. Neill (eds.)

The final significant synthesis of our wisdom of fish migration and the underlying delivery and assistance phenomena, either actual and organic, used to be "Fish Migration" released sixteen years in the past by way of F.R. Harden Jones (1968). That synthesis was once established mostly upon what may be gleaned via classical fishery-biology techni.ques, similar to tagging and recapture experiences, advertisement fishing records, and netting and trapping reviews. even though Harden Jones additionally supplied, with a great deal of concept and hypothesis, a theoretical foundation for learning a few of the facets of fish migration and migratory orientation, development during this box has been, with a number of excepti.ons, piecemeal and extra disjointed than could have been anticipated. hence we welcomed the strategy from the NATO Marine Sciences Programme Panel and the encouragement from F.R. Harden Jones to advance a proprosal for, and eventually to prepare, a NATO complicated examine Institute (ARI) on mechanisms of fish migration. enormous development were made with descriptive, analytical and predictive methods to fish migration because the visual appeal of "Fish ~ligration." either as a result development and the customarily conflicting result of learn, we felt that the time was once back correct and the hassle justified to synthesize and to severely investigate our wisdom. Our final goal used to be to spot the earnings and shortcomings and to improve testable hypotheses for the subsequent decade or two.

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There have been investigations on the specific gravity of eggs and larvae of marine fishes (Blaxter 1969; Coombs 1981), but from the standpoint of egg and larval drift it would be worthwhile to examine the relationship between the depth of neutral buoyancy for the eggs and larvae and the currents present at that depth. Buoyancy regulation in clupeoid larvae (which have swim bladders) has been studied (Blaxter and Ehrlich 1974; Hunter and Sanchez 1976), but it is not known how well the larvae of other species {especially those lacking swim bladders} can actually select and maintain a preferred depth, especially in the face of currents or turbulence.

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1982. A numerical method for simulating plankton transport and numerical simulation of the North Atlantic Ocean drift of Anguilla leptocephali. Doctoral dissertation. University of Maine, Orono, Maine, USA. Powles, H. 1981. ) fishes off the southeastern United States. Rapports et Proces-Verbaux des Reunions Conseil International pour l'Exploration de la Mer 178:207-209. L. W. Knight-Jones. 1963. Sensitivity to pressure changes in teleosts lacking swim bladders. Journal of the Marine Biological Association of India 5:289-293.

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