Автор |
Coombs, R. F. |
Дата выпуска |
1979 |
dc.description |
A model for an ‘open’ fish population is described. Basically an expansion of the classical catch equation, it includes a ‘population change’ coefficient to allow for changes in population size induced by causes other than fishing. The model relates this coefficient to catch, fishing effort, initial population size, and catchability coefficient. With observed catch and fishing effort data incorporated, the remaining parameters are estimated by minimising sums of squares. This estimation process is applied to data from both real and simulated fisheries, and is shown to be effective if the basic assumptions of the model are met. If this is not so considerable errors occur, and these are investigated with respect to the examples. |
Формат |
application.pdf |
Издатель |
Taylor & Francis Group |
Копирайт |
Copyright Taylor and Francis Group, LLC |
Название |
Estimating population parameters in an ‘open’ fish population |
Тип |
research-article |
DOI |
10.1080/00288330.1979.9515785 |
Electronic ISSN |
1175-8805 |
Print ISSN |
0028-8330 |
Журнал |
New Zealand Journal of Marine and Freshwater Research |
Том |
13 |
Первая страница |
121 |
Последняя страница |
129 |
Аффилиация |
Coombs, R. F.; Fisheries Research Division, Ministry of Agriculture & Fisheries |
Выпуск |
1 |
Библиографическая ссылка |
Fischler, K. J. 1965. The use of catch‐effort, catch‐sampling, and tagging data to estimate a population of blue crabs. Transactions of the American Fisheries Society, 94: 287–310. |
Библиографическая ссылка |
Leslie, P. H. and Davis, D. H. S. 1939. An attempt to determine the absolute number of rats on a given area. Journal of Animal Ecology, 8: 94–113. |
Библиографическая ссылка |
Ricker, W. E. 1958. Handbook of computations for biological statistics of fish populations. Bulletin of the Fisheries Research Board of Canada, 119 |
Библиографическая ссылка |
Seber, G. A. F. 1973. The Estimation of Animal Abundance, London: Griffin. |