|
Eintrag |
Verweise |
|
Autor |
McGarvey, R. |
|
|
Titel |
An age-structured open-access fishery model |
Typ |
Zeitschrift, Artikel |
|
Jahr |
1994 |
Publikation |
Can. J. Fish. Aquat. Sci |
Kurztitel der Zeitschrift |
|
|
|
Band |
51 |
Ausgabe |
4 |
Seiten |
900-912 |
|
|
Schlüsselwörter |
fischerei, Population, Mathematik, Modell, Statistik, CPUE |
|
|
Zusammenfassung |
A dynamic model for open-access fisheries is presented. In addition to density dependence in recruitment and fishing effort changing in proportion to the level of profit fishermen earn which characterizes previous open-access models, it incorporates full age structure for the fish stock, lognormal environmental recruitment variability, and gear selectivity. The predator-prey cycling solution of the original Schaefer dynamic model, and subsequent open-access models, persists for these model extensions. Density dependence in recruitment induces greater global stability. Environmental recruitment variability, common in marine populations, is destabilizing in the neighborhood of the open-access equilibrium. Approximating model steady states of effort and catch by the corresponding averages from data time series underlies a new algorithm of parameter evaluation, applied here to an open-access model of the Georges Bank sea scallop (Placopecten magellanicus) fishery. |
|
|
Adresse |
|
|
|
Organisation |
|
Abschlussarbeit |
|
|
|
Herausgeber |
|
Erscheinungsort |
|
Editor |
|
|
|
Sprache |
|
Sprache der Zusammenfassung |
|
Originaltitel |
|
|
|
Editor der Reihe |
|
Titel der Reihe |
|
Kurztitel der Reihe |
|
|
|
Band der Reihe |
|
Ausgabe der Reihe |
|
Edition |
|
|
|
ISSN |
|
ISBN |
|
Medium |
|
|
|
Bereich |
|
Expedition |
|
Konferenz |
|
|
|
Notizen |
South Australian Res. Dev. Inst., 2 Hamra Ave., West Beach, S.A. 5024, Australia |
Geprüft |
|
|
|
Rufnummer |
525 |
Signatur |
2324 |
|
Permalink für diesen Eintrag |