Changes in abundance of demersal fish species in the North Sea between 1906-1909 and 1990-1995

A.D. Rijnsdorp; P.I. van Leeuwen; N. Daan; H.J.L. Heessen

doi:10.1006/jmsc.1996.0132

Changes in abundance of demersal fish species in the North Sea between 1906-1909 and 1990-1995

A.D. Rijnsdorp, P.I. van Leeuwen, N. Daan, H.J.L. Heessen

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Abstract

A comparison of catch rate of demersal fish during beam trawl and otter trawl surveys carried out in the period 1990-1995 and 1906-1909 indicates lower abundance in recent years for the total assemblage as well as for individual groups. There appear to have been shifts in the community associated with reduced diversity and evenness indices. Length-frequency distributions of roundfish and flatfish show a shift towards smaller-sized fish.

Original language	English
Pages (from-to)	1054-1062
Journal	ICES Journal of Marine Science
Volume	53
Issue number	6
DOIs	https://doi.org/10.1006/jmsc.1996.0132
Publication status	Published - 1996

Keywords

diversity
exploitation
fish assemblage
North Sea

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10.1006/jmsc.1996.0132

Cite this

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title = "Changes in abundance of demersal fish species in the North Sea between 1906-1909 and 1990-1995",

abstract = "A comparison of catch rate of demersal fish during beam trawl and otter trawl surveys carried out in the period 1990-1995 and 1906-1909 indicates lower abundance in recent years for the total assemblage as well as for individual groups. There appear to have been shifts in the community associated with reduced diversity and evenness indices. Length-frequency distributions of roundfish and flatfish show a shift towards smaller-sized fish.",

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author = "A.D. Rijnsdorp and {van Leeuwen}, P.I. and N. Daan and H.J.L. Heessen",

year = "1996",

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T1 - Changes in abundance of demersal fish species in the North Sea between 1906-1909 and 1990-1995

AU - Rijnsdorp, A.D.

AU - van Leeuwen, P.I.

AU - Daan, N.

AU - Heessen, H.J.L.

PY - 1996

Y1 - 1996

N2 - A comparison of catch rate of demersal fish during beam trawl and otter trawl surveys carried out in the period 1990-1995 and 1906-1909 indicates lower abundance in recent years for the total assemblage as well as for individual groups. There appear to have been shifts in the community associated with reduced diversity and evenness indices. Length-frequency distributions of roundfish and flatfish show a shift towards smaller-sized fish.

AB - A comparison of catch rate of demersal fish during beam trawl and otter trawl surveys carried out in the period 1990-1995 and 1906-1909 indicates lower abundance in recent years for the total assemblage as well as for individual groups. There appear to have been shifts in the community associated with reduced diversity and evenness indices. Length-frequency distributions of roundfish and flatfish show a shift towards smaller-sized fish.

KW - diversity

KW - exploitation

KW - fish assemblage

KW - North Sea

U2 - 10.1006/jmsc.1996.0132

DO - 10.1006/jmsc.1996.0132

M3 - Article

SN - 1054-3139

VL - 53

SP - 1054

EP - 1062

JO - ICES Journal of Marine Science

JF - ICES Journal of Marine Science

IS - 6

ER -

Changes in abundance of demersal fish species in the North Sea between 1906-1909 and 1990-1995

Abstract

Keywords

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