Regional variation in glass eel catches: an evaluation of multiple sample sites
Dekker, W. (1986). Regional variation in glass eel catches: an evaluation of multiple sample sites. Vie Milieu (1980) 36(4): 251-254
In: Vie et Milieu. Observatoire Oceanographique Banyuls: Banyuls-sur-Mer. ISSN 0240-8759, more
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| Keywords |
Developmental stages > Larvae > Fish larvae
Fisheries > Estuarine fisheries
Mathematical statistics > Statistical methods > Statistical analysis
Sampling > Biological sampling
Statistics > Fishery statistics > Catch statistics > Fish catch statistics
Anguilla anguilla (Linnaeus, 1758) [WoRMS]
Brackish water |
| Abstract |
In the Netherlands glass eels, Anguilla anguilla, are caught for research purposes at various sites. Catches at four sites are compared, using an analysis of variance. It is concluded that three sites basically give the same information, while one, the most southern site, shows independent annual fluctuations. As a side effect of this study, a different indicator for catch sizes is proposed: geometric means reflect more accurately the underlying frequency distribution than common means do. |
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