Reproductive parameters of Atlantic chub mackerel Scomber colias in M'diq Bay, Morocco

Reproductive parameters of Atlantic chub mackerel Scomber colias in M'diq Bay, Morocco

Reproductive biology of Atlantic chub mackerel (Scomber colias) was studied based on samples from commercial catches in M'diq Bay, Morocco. Females predominated in the total catch (54%), their size at first maturity being 19.19 ± 0.43 cm TL. A minimum landing size (MLS) of 21 cm is suggested. T...

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Veröffentlicht in:Journal of the Marine Biological Association of the United Kingdom 2019-06, Vol.99 (4), p.957-962
Hauptverfasser: Techetach, Mohamed, Ajana, Rabia, Saoud, Younes
Format: Artikel
Sprache:eng
Schlagworte:
Biology
Eggs
Fecundity
Females
Fish
Fishing
Frequency distribution
Mackerel
Marine fishes
Oocytes
Scomber colias
Scomber japonicus
Studies
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creator Techetach, Mohamed
Ajana, Rabia
Saoud, Younes
description Reproductive biology of Atlantic chub mackerel (Scomber colias) was studied based on samples from commercial catches in M'diq Bay, Morocco. Females predominated in the total catch (54%), their size at first maturity being 19.19 ± 0.43 cm TL. A minimum landing size (MLS) of 21 cm is suggested. The oocyte size frequency distribution and histological analysis confirmed that S. colias is a species with an indeterminate fecundity. The batch fecundity was estimated as 18,452–131,642, with a mean of 60,022 oocytes. The relative batch fecundity was 157–360, with a mean of 279 eggs g−1.
doi_str_mv 10.1017/S0025315418000930
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source Cambridge University Press Journals Complete
subjects Biology
Eggs
Fecundity
Females
Fish
Fishing
Frequency distribution
Mackerel
Marine fishes
Oocytes
Scomber colias
Scomber japonicus
Studies
title Reproductive parameters of Atlantic chub mackerel Scomber colias in M'diq Bay, Morocco
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