Milner B. Schaefer
Inter-American Tropical Tuna Commission
OceanographyEnvironmental scienceFisheryFishingBiology
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Publications 16
#1Milner B. Schaefer (Inter-American Tropical Tuna Commission)H-Index: 7
Summary The foregoing examples illustrate how the theory developed here may be employed to make estimates concerning the condition of a commercial marine fishery. The examples employed, although having perhaps as complete information as any available for this purpose, leave something to be desired. In particular, in both of these examples, very little or no data are available concerning intensity of fishing and abundance for the early period of development of the fishery, well before the maximum...
1,025 CitationsSource
Abstract The yield from an exploited fish population depends on the rate of harvesting (fishing mortality rate) and the magnitude of the standing stock. The latter is determined by rates of increase from recruitment and growth and rates of loss from both natural and fishing mortality. Since we lack information respecting the density-dependence of each of these rates, various simplifying assumptions are made in practice in developing mathematical models of exploited fish populations. Such models ...
13 CitationsSource
#1Milner B. SchaeferH-Index: 7
#1Milner B. Schaefer (SIO: Scripps Institution of Oceanography)H-Index: 7
Abstract Postwar growth of world marine fisheries has been rapid, from 17 million metric tons in 1948 to 40 million in 1962, and recently seems to have accelerated. Crude estimates of the potential total harvest may be made on the basis of information about unfished regions and underexploited stocks. These lead the author to conclude that, without radical changes in fishing techniques, or radical intervention, as for example by extensive aquaculture, the harvest can easily be increased by a fact...
26 CitationsSource
#1Milner B. SchaeferH-Index: 7
#1Milner B. Schaefer (Inter-American Tropical Tuna Commission)H-Index: 7
#1Milner B. Schaefer (Inter-American Tropical Tuna Commission)H-Index: 7
Abstract Conservation management of the commercial marine fisheries has the general objective of maximizing man's long-term benefits from the exploitation of the fish resources. The question of what is most beneficial to man involves both biological and economic considerations. In this paper some of the effects of fishing on the fish stocks, and on the sustainable yields from them, are considered, together with important economic factors. It is indicated that the maximum sustainable average catc...
5 CitationsSource
#1Roger RevelieH-Index: 25
#2Milner B. SchaeferH-Index: 7
5 Citations