亚得里亚海北部和中部的Sepia orbignyana, f russac, 1826的分布、长重关系和繁殖特征

IF 0.6 4区生物学 Q4 MARINE & FRESHWATER BIOLOGY

Cahiers De Biologie Marine Pub Date : 2018-01-01 DOI:10.21411/CBM.A.B9291A6E

Svjetlana Krstulović Šifner, T. Damjanović, Igor Isajlović

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引用次数: 3

摘要

1996年至2011年，研究人员在亚得里亚海北部和中部的东部地区采集样本，研究了棕褐色。总共分析了249个个体。本种广泛分布于亚得里亚海中部和亚得里亚海北部的一些地区，深度在22 - 237米之间，密度在50 - 200米之间较大。性别比(m/f)为1.27:1。雌虫的地幔长度在29 ~ 100毫米之间，雄虫的地幔长度在22 ~ 92毫米之间。雄性和雌性均出现负异速生长。成熟雄、雌最小，分别为42 mm和60 mm。初成熟时，雄虫体长58毫米，雌虫体长66毫米。成熟雌性的潜在生殖力在77 ~ 806个卵母细胞之间变化，平均为365±179个。在成熟雌性卵母细胞的性腺中发现了不同发育阶段的卵母细胞(长度从0.21到9.33 mm不等)。雄虫精子包囊数为32 ~ 597个，长度为3.32 ~ 11.81 mm。结果表明，亚得里亚海的S. orbignyana具有群体同步排卵，很可能是一种间歇性的终端产卵者。

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Distribution, length-weight relationships and reproductive characteristics of Sepia orbignyana, Férussac, 1826 in the Northern and Central Adriatic Sea

Sepia orbignyana was studied in the eastern part of the Northern and Central Adriatic Sea at samples collected from 1996 to 2011. A total of 249 individuals was analysed. The species was widely distributed in the Central Adriatic Sea and in some areas of the Northern Adriatic Sea, at depths between 22 and 237 m, with greater density recorded from 50 to 200 m. The sex ratio (m/f) was 1.27:1. The mantle length ranged from 29 to 100 mm in females and between 22 and 92 mm in males. The negative allometric growth was observed in males and females. The smallest mature male and female had mantle lengths 42 mm and 60 mm, respectively. The length at first maturity was 58 mm in males and 66 mm in females. The potential fecundity of mature females varied between 77 and 806 oocytes, with a mean of 365±179. In the gonads of mature females oocytes at different stages of development (lengths from 0.21 to 9.33 mm) were found. The number of spermatophors in males ranged from 32 to 597 with lengths between 3.32 and 11.81 mm. The results indicated that S. orbignyana in the Adriatic Sea has group-synchronous ovulation and most probably is an intermittent terminal spawner.

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来源期刊

Cahiers De Biologie Marine 生物-海洋与淡水生物学

CiteScore

1.50

自引率

16.70%

发文量

审稿时长

6-12 weeks

期刊介绍： BM - Cahiers de Biologie Marine publishes papers on all aspects of the biology of marine organisms and of biological oceanography, in particular in the following fields: Benthic and planktonic Ecology; Ecophysiology; Population dynamics and Population genetics; Food webs; Systematics and Phylogeny. The key criteria are that the work clearly demonstrates its novelty, its importance to a particular field as well as its interest to those outside that discipline, and conclusions that are justified by the study. Reviews on current topics are welcome. Selected papers or abstracts from international symposia or workshops may also be considered. Short communications (4 printed pages) may also be published. Papers must be original and must not have been published or be under consideration for publication elsewhere. They will be reviewed by at least two referees before acceptance for publication. Short note about new record could be accepted only if this one significantly increases the distribution area of the species and if the paper includes a discussion about the general distribution of the species and the significance of the observed range extension.