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Now showing items 91-100 of 132
Management of multispecies stocks: a review of the theory
Type: Journal Article
The multitude of species contributing to the catch of the demersal fisheries of Southeast Asia, combined with an acute lack of knowledge on the biology of these species and the scarcity of good statistical data on the ...
The population dynamics of Nemipterus marginatus (Cuvier & Val.) off western Kalimantan, South China Sea
Type: Journal Article
The following parameter values are derived for a West Kalimantan (West Borneo) stock of the threadfin bream, Nemipterus marginatus : L infinity = 24.5 cm (L.T.), W infinity = 210 g, K = 0.42, t = -0.41 and M = 1.73. ...
Fish production, catches and the carrying capacity of the world oceans
Type: Journal Article
A brief review of the status of the world fisheries is presented with emphasis on the differences between catches (= landings + bycatch), biological production of fish, and predation (= production - catches). The ECOPATH ...
Zur Fischereibiologie tropischer Nutztiere: Eine Bestandsaufnahme von Konzepten und Methoden
Type: Journal Article
Die Notwendigkeit, adaquate Methoden far die Untersuchung der Dynamik von tropischen Fischereiressourcen bewuBt zu entwickeln, ergibt sich (a) aus ihrer enormen Bedeutung Kir die Ernahrung und als Einkommensquelle von ...
Fish stock assessment in coral reefs: notes on the state of the art
Type: Journal Article
Coral reefs may produce as much as 10% of the annual world fish catch. Yet, very little investigation has been done on the biology of coral reef fishes, so that we know little about their growth rates and mortalities, vital ...
Resharpening Ockham's razor
Type: Journal Article
Ockham's dictum is discussed in this essay.
Growth, reproduction and mortality of the sea hare Dolabella auricularia (Gastropoda: Aplysiidae) in the Central Visayas, Philippines
Type: Journal Article
The growth parameters W infinity and K of the von Bertalanffy growth equation were estimated from size-frequency data of the sea hare D. auricularia using an objective, computer-based method. The results obtained from two ...
Structuring dynamic models of exploited ecosystems from trophic mass-balance assessment
Type: Journal Article
The linear equations that describe trophic fluxes in mass-balance, equilibrium assessments of ecosystems (such as in the ECOPATH approach) can be re-expressed as differential equations defining trophic interactions as ...
On improving operation and use of the elefan programs. part 3, correcting length-frequency data for the effects of gear selection and/or incomplete recruitment
Type: Journal Article
One important feature of length€”frequency data that is usually ignored when data are collected for subsequent estimation of growth and various related parameter estimates is that length€”frequency data are necessarily ...
Guide du logiciel ECOPATH II (version 2.1)
Type: Manual
This guide documents the use and background of the ECOPATH II software system written for MS DOS computers for straightforward construction and parametrization of steady-state trophic models of aquatic ecosystems. ECOPATH ...