Seasonal changes in the north-eastern Atlantic mackerel diet ( Scomber scombrus) in the north of Spain (ICES Division VIIIc)
Seasonal changes in the diet of the Atlantic mackerel from the north-east Atlantic in ICES Division VIIIc during the period 1988–1999. The diet of juvenile (21–29 cm) and adult mackerel (30–45 cm) in this area in spring (the spawning season) and autumn varied in composition and size of prey. In spri...
Published in: | Journal of the Marine Biological Association of the United Kingdom |
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Language: | English |
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Cambridge University Press (CUP)
2005
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Online Access: | http://dx.doi.org/10.1017/s0025315405011343h https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315405011343 |
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crcambridgeupr:10.1017/s0025315405011343h 2024-09-15T18:24:43+00:00 Seasonal changes in the north-eastern Atlantic mackerel diet ( Scomber scombrus) in the north of Spain (ICES Division VIIIc) Olaso, Ignacio Gutiérrez, José L. Villamor, Begoña Carrera, Pablo Valdés, Luis Abaunza, Pablo 2005 http://dx.doi.org/10.1017/s0025315405011343h https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315405011343 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Journal of the Marine Biological Association of the United Kingdom volume 85, issue 2, page 415-418 ISSN 0025-3154 1469-7769 journal-article 2005 crcambridgeupr https://doi.org/10.1017/s0025315405011343h 2024-08-21T04:03:05Z Seasonal changes in the diet of the Atlantic mackerel from the north-east Atlantic in ICES Division VIIIc during the period 1988–1999. The diet of juvenile (21–29 cm) and adult mackerel (30–45 cm) in this area in spring (the spawning season) and autumn varied in composition and size of prey. In spring, the average prey weight was 0·009 g and the number of prey was 180 individuals per stomach, with the average stomach content volume being 1·62 g (0·60% BW [body weight]), and 1·50 g (0·51% BW) when considering the empty stomachs. In autumn, the average prey weight was 0·28 g, the average number of prey per stomach was 17, and the average stomach weight that contained food was three times higher than in spring, and 2·3 times when considering the empty stomachs. In spring, the diet of the juveniles consisted of euphausiids, crustacean larvae and other zooplankton, whereas euphausiids formed 90% of the diet in the adults. In addition, during this period mackerel were cannibalistic, feeding on their own eggs. In autumn, the juveniles ate hyperiids and other, mainly gelatinous zooplankton, whereas for the adults blue whiting were clearly important, since they comprised 90% of the stomach weight. Article in Journal/Newspaper North East Atlantic Cambridge University Press Journal of the Marine Biological Association of the United Kingdom 85 2 415 418 |
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Open Polar |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
description |
Seasonal changes in the diet of the Atlantic mackerel from the north-east Atlantic in ICES Division VIIIc during the period 1988–1999. The diet of juvenile (21–29 cm) and adult mackerel (30–45 cm) in this area in spring (the spawning season) and autumn varied in composition and size of prey. In spring, the average prey weight was 0·009 g and the number of prey was 180 individuals per stomach, with the average stomach content volume being 1·62 g (0·60% BW [body weight]), and 1·50 g (0·51% BW) when considering the empty stomachs. In autumn, the average prey weight was 0·28 g, the average number of prey per stomach was 17, and the average stomach weight that contained food was three times higher than in spring, and 2·3 times when considering the empty stomachs. In spring, the diet of the juveniles consisted of euphausiids, crustacean larvae and other zooplankton, whereas euphausiids formed 90% of the diet in the adults. In addition, during this period mackerel were cannibalistic, feeding on their own eggs. In autumn, the juveniles ate hyperiids and other, mainly gelatinous zooplankton, whereas for the adults blue whiting were clearly important, since they comprised 90% of the stomach weight. |
format |
Article in Journal/Newspaper |
author |
Olaso, Ignacio Gutiérrez, José L. Villamor, Begoña Carrera, Pablo Valdés, Luis Abaunza, Pablo |
spellingShingle |
Olaso, Ignacio Gutiérrez, José L. Villamor, Begoña Carrera, Pablo Valdés, Luis Abaunza, Pablo Seasonal changes in the north-eastern Atlantic mackerel diet ( Scomber scombrus) in the north of Spain (ICES Division VIIIc) |
author_facet |
Olaso, Ignacio Gutiérrez, José L. Villamor, Begoña Carrera, Pablo Valdés, Luis Abaunza, Pablo |
author_sort |
Olaso, Ignacio |
title |
Seasonal changes in the north-eastern Atlantic mackerel diet ( Scomber scombrus) in the north of Spain (ICES Division VIIIc) |
title_short |
Seasonal changes in the north-eastern Atlantic mackerel diet ( Scomber scombrus) in the north of Spain (ICES Division VIIIc) |
title_full |
Seasonal changes in the north-eastern Atlantic mackerel diet ( Scomber scombrus) in the north of Spain (ICES Division VIIIc) |
title_fullStr |
Seasonal changes in the north-eastern Atlantic mackerel diet ( Scomber scombrus) in the north of Spain (ICES Division VIIIc) |
title_full_unstemmed |
Seasonal changes in the north-eastern Atlantic mackerel diet ( Scomber scombrus) in the north of Spain (ICES Division VIIIc) |
title_sort |
seasonal changes in the north-eastern atlantic mackerel diet ( scomber scombrus) in the north of spain (ices division viiic) |
publisher |
Cambridge University Press (CUP) |
publishDate |
2005 |
url |
http://dx.doi.org/10.1017/s0025315405011343h https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0025315405011343 |
genre |
North East Atlantic |
genre_facet |
North East Atlantic |
op_source |
Journal of the Marine Biological Association of the United Kingdom volume 85, issue 2, page 415-418 ISSN 0025-3154 1469-7769 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0025315405011343h |
container_title |
Journal of the Marine Biological Association of the United Kingdom |
container_volume |
85 |
container_issue |
2 |
container_start_page |
415 |
op_container_end_page |
418 |
_version_ |
1810465137338875904 |