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- W2009969006 abstract "From the study of several plankton samples from the surface of southern Aegean Sea it is found that the sex ratio in Temora stylifera Dana and Centropages typicus Krøyer varies considerably (from 40 % to 132 % for Temora and from 24 % to 178 % for Centropages). The mean sex ratio shows a seasonal fluctuations. For these species the highest sex ratio is observed during the period of greatest abundance, that is when the environmental factors are optimal for the species, and the minimum sex ratio during the period of minimum abundance. During the latter period there are adverse environmental factors and a scarcity of food; a large number of females and hence high fecundity will favour the survival of the species. L'étude d'un grand nombre d'échantillons planctoniques provenant de la mer Egée du Nord a montré que le sex ratio des Copépodes Temora stylifera Dana et Centropages typicus Krøyer présente des différences considérables (de 40 % à 132 % pour Temora et de 24 % à 178 % pour Centropages). Le sex ratio présente une fluctuation saisonière. Pour les espèces étudiés le plus haut sex ratio est observé pendant la période d'abondance de l'espèce quand les facteurs de milieu sont favorables; le plus bas sex ratio est observé pendant la saison de minimum numérique. Pendant ce temps les conditions du milieu sont défavorables, un appauvrissement de la nourriture disponible est observé, et l'accroissement du taux des femelles et donc la fécondité favorise la survie de l'espèce." @default.
- W2009969006 created "2016-06-24" @default.
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- W2009969006 date "1972-01-01" @default.
- W2009969006 modified "2023-10-18" @default.
- W2009969006 title "Sex ratio in the pelagic copepods Temora stylifera Dana and Centropages typicus Krøyer" @default.
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- W2009969006 doi "https://doi.org/10.1016/0022-0981(72)90058-5" @default.
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