Fecundity of cod (Gadus morhua callarias L.) in the Southern Baltic in the late 1990s
The fecundity of cod from the southern Baltic Sea in the late 1990s was estimated from 461 pairs of ovaries at the maturity stage IV (according to Maier′s scale). Number of eggs per female was estimated for different length, weight, and age classes of fish obtained from the ICES subdivisions: 25 (Bo...
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Online Access: | https://doi.org/10.3750/AIP2001.31.2.05 https://doaj.org/article/d6d3db2381664fa2adfe1eca65b165b7 |
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ftdoajarticles:oai:doaj.org/article:d6d3db2381664fa2adfe1eca65b165b7 2023-05-15T16:19:07+02:00 Fecundity of cod (Gadus morhua callarias L.) in the Southern Baltic in the late 1990s M. Kosior K. Trella A. Jaworski 2001-12-01T00:00:00Z https://doi.org/10.3750/AIP2001.31.2.05 https://doaj.org/article/d6d3db2381664fa2adfe1eca65b165b7 EN eng Pensoft Publishers https://aiep.pensoft.net/article/25773/download/pdf/ https://aiep.pensoft.net/article/25773/download/xml/ https://aiep.pensoft.net/article/25773/ https://doaj.org/toc/1734-1515 doi:10.3750/AIP2001.31.2.05 1734-1515 https://doaj.org/article/d6d3db2381664fa2adfe1eca65b165b7 Acta Ichthyologica et Piscatoria, Vol 31, Iss 2, Pp 55-75 (2001) Aquaculture. Fisheries. Angling SH1-691 article 2001 ftdoajarticles https://doi.org/10.3750/AIP2001.31.2.05 2022-12-31T02:55:50Z The fecundity of cod from the southern Baltic Sea in the late 1990s was estimated from 461 pairs of ovaries at the maturity stage IV (according to Maier′s scale). Number of eggs per female was estimated for different length, weight, and age classes of fish obtained from the ICES subdivisions: 25 (Bornholm Deep) and 26 (Gdańsk Deep). Absolute fecundity in relation to body length and age, as well as relative fecundity, showed no differences between the two subdivisions, whereas absolute fecundity in relation to body weight was slightly higher in females from the Gdańsk Deep. Absolute fecundity in relation to age showed a high variability, particularly among age classes 5 and older. Absolute fecundity of cod in the southern Baltic has increased slightly over the past four decades. Length at first maturity, i.e. length at which 50 % of females are mature, was estimated to be 40.2 cm for females from the Gdańsk Deep. Article in Journal/Newspaper Gadus morhua Directory of Open Access Journals: DOAJ Articles Acta Ichthyologica et Piscatoria 31 2 55 75 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Aquaculture. Fisheries. Angling SH1-691 |
spellingShingle |
Aquaculture. Fisheries. Angling SH1-691 M. Kosior K. Trella A. Jaworski Fecundity of cod (Gadus morhua callarias L.) in the Southern Baltic in the late 1990s |
topic_facet |
Aquaculture. Fisheries. Angling SH1-691 |
description |
The fecundity of cod from the southern Baltic Sea in the late 1990s was estimated from 461 pairs of ovaries at the maturity stage IV (according to Maier′s scale). Number of eggs per female was estimated for different length, weight, and age classes of fish obtained from the ICES subdivisions: 25 (Bornholm Deep) and 26 (Gdańsk Deep). Absolute fecundity in relation to body length and age, as well as relative fecundity, showed no differences between the two subdivisions, whereas absolute fecundity in relation to body weight was slightly higher in females from the Gdańsk Deep. Absolute fecundity in relation to age showed a high variability, particularly among age classes 5 and older. Absolute fecundity of cod in the southern Baltic has increased slightly over the past four decades. Length at first maturity, i.e. length at which 50 % of females are mature, was estimated to be 40.2 cm for females from the Gdańsk Deep. |
format |
Article in Journal/Newspaper |
author |
M. Kosior K. Trella A. Jaworski |
author_facet |
M. Kosior K. Trella A. Jaworski |
author_sort |
M. Kosior |
title |
Fecundity of cod (Gadus morhua callarias L.) in the Southern Baltic in the late 1990s |
title_short |
Fecundity of cod (Gadus morhua callarias L.) in the Southern Baltic in the late 1990s |
title_full |
Fecundity of cod (Gadus morhua callarias L.) in the Southern Baltic in the late 1990s |
title_fullStr |
Fecundity of cod (Gadus morhua callarias L.) in the Southern Baltic in the late 1990s |
title_full_unstemmed |
Fecundity of cod (Gadus morhua callarias L.) in the Southern Baltic in the late 1990s |
title_sort |
fecundity of cod (gadus morhua callarias l.) in the southern baltic in the late 1990s |
publisher |
Pensoft Publishers |
publishDate |
2001 |
url |
https://doi.org/10.3750/AIP2001.31.2.05 https://doaj.org/article/d6d3db2381664fa2adfe1eca65b165b7 |
genre |
Gadus morhua |
genre_facet |
Gadus morhua |
op_source |
Acta Ichthyologica et Piscatoria, Vol 31, Iss 2, Pp 55-75 (2001) |
op_relation |
https://aiep.pensoft.net/article/25773/download/pdf/ https://aiep.pensoft.net/article/25773/download/xml/ https://aiep.pensoft.net/article/25773/ https://doaj.org/toc/1734-1515 doi:10.3750/AIP2001.31.2.05 1734-1515 https://doaj.org/article/d6d3db2381664fa2adfe1eca65b165b7 |
op_doi |
https://doi.org/10.3750/AIP2001.31.2.05 |
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Acta Ichthyologica et Piscatoria |
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31 |
container_issue |
2 |
container_start_page |
55 |
op_container_end_page |
75 |
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1766005452921896960 |