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Sexual Maturation of the Chub Mackerel Scomber colias (Scombridae) in the East-Central Atlanticстатья
- Авторы: Nikitenko A.I., Artemenko D.V., Orlov A.M., Stroganov A.N., Belyaev V.A.
- Журнал: Journal of Ichthyology
- Том: 64
- Номер: 4
- Год издания: 2024
- Издательство: Pleiades Publishing, Inc.
- Местоположение издательства: New York, USA
- Первая страница: 669
- Последняя страница: 677
- DOI: 10.1134/S0032945224020073
- Аннотация: Scientific monitoring of pelagic fish stocks in 2004–2005 and 2014–2017 provided information oncharacteristics of sexual maturation of Atlantic chub mackerel Scomber colias in the coastal waters of the Central-Eastern Atlantic. Based on these results we describe ecological and geographical variability of some biologicalcharacteristics of the species. Features of sexual maturation of females and males of the mackerel canbe described by a logistic equation obtained in the R programming environment. Fork length, at which 50%of individuals aged 1+ are mature, is 18.4 cm for females and 20.0 cm for males; 100% of individuals aremature at age 3+ with a fork length of 32.3 and 30.8 cm for females and males, respectively. A high proportionof spawning chub mackerel individuals in the Central-Eastern Atlantic have been recorded from February toMarch and from June to July. Chub mackerel in the coastal waters of this region are similar in life cycle characteristicsto the populations of the waters off the Canary Islands and the Madeira Archipelago, but differfrom the populations of the waters off mainland Portugal, the Azores, South Africa, and the Bay of Biscay infaster sexual maturation and growth rates.
- Добавил в систему: Строганов Андрей Николаевич