Titlebook: On the Dynamics of Exploited Fish Populations; Raymond J. H. Beverton,Sidney J. Holt Book 1993 Springer Science+Business Media Dordrecht 1

遗忘

影响深远

Application of Population Models of Part Ipresent certain difficulties, and the following comments may be helpful. The first need, from the point of view of both speed and accuracy, is for an efficient work-sheet. For example, the summation term from . = 0 to 3 which appears in all equations involving the weight of fish, is almost certain t

残废的火焰

Application of Population Models of Part IIfor the most part, to study the annual mean yield per recruit, ..., as a function of . and .. (or mesh size in some cases), since it will then usually be possible to see at once whether any profound changes in the other characteristics of commercial importance, . and ., are involved. Where this is f

生意行为

Principles and Methods of Fishery Regulationsing this word in the general sense adopted by Graham (1951a) to mean simply ‘too much fishing’. One possible form of regulation therefore seems self-evident, namely to reduce the fishing mortality coefficient in the population by decreasing the fishing intensity. On the other hand, we have shown th

DALLY

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