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Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.

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Biomass transport to and from the Zeeschelde estuary by migration of juvenile Atlantic herring Clupea harengus L. Maes, J. (2000). Biomass transport to and from the Zeeschelde estuary by migration of juvenile Atlantic herring Clupea harengus L., in: Maes, J. De structuur van de visgemeenschap van het Zeeschelde-estuarium = The structure of the fish community of the Zeeschelde estuary. pp. 95-107 In: Maes, J. (2000). De structuur van de visgemeenschap van het Zeeschelde-estuarium = The structure of the fish community of the Zeeschelde estuary. PhD Thesis. KUL: Leuven. 143 pp., meer

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Beschikbaar in	Auteur
VLIZ: Open Marine Archive 283402 [ download pdf ]

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Trefwoorden

Behaviour > Migrations Developmental stages > Juveniles Population characteristics > Biomass Clupea harengus Linnaeus, 1758 [WoRMS] ANE, België [Marine Regions] Marien/Kust; Brak water

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Auteur		Top
Maes, J., meer

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Abstract

A model describing fish abundance resulting from fish migration and mortality in an upper estuary is presented. This model can be used to estimate biomass transports by fish migrations between estuary and sea and to assess production assimilated in the estuary. It was applied to herring Clupea harengus L., a marine species with 0+ juveniles that migrate during winter to temperate European estuaries. It was shown that different mortality regimes greatly affected the number of fish that eventually emigrated and, hence, the biomass that was exported during the seaward migration. The difference between imported and exported biomass was assessed under different growth conditions and varied from positive to negative as mortality rates increased. The discrepancy between export of biomass and in situ produced biomass showed that fish production was not necessarily transported to the sea when emigrating. It was tentatively concluded that export of biomass out of the estuary only occurs if populations move seaward before winter.See also: Maes, J.; Ollevier, F. (2000) Biomass transport to and from an upper estuarine area by migration of juvenile Atlantic herring Clupea harengus. Can. J. Fish. Aquat. Sci./J. Can. Sci. Halieut. Aquat. 57(7): 1404-1409.

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