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首页> 外文期刊>Turkish Journal of Fisheries & Aquatic Sciences >Fecundity and Spawning Strategy of Shortfin Squid Illex coindetii (Oegopsida: Ommastrephidae), In the Eastern Mediterranean
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Fecundity and Spawning Strategy of Shortfin Squid Illex coindetii (Oegopsida: Ommastrephidae), In the Eastern Mediterranean

机译：地中海东部短鳍鱿鱼Illex coindetii（Oegopsida：Ommastrephidae）的繁殖力和产卵策略

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摘要

Samples of Illex coindetii were collected with bottom trawl net at 150, 350 and 550 m depths in the Aegean Sea (Eastern Mediterranean). Sampling was carried out monthly from May 2008 to April 2009. A total of 1415 I. coindetii individuals (551 males and 688 females and 176 unidentified sex) were collected. The length-weight relationship showed a negative allometry. There was a difference between the sexes in respect to length-weight relationships with females being larger and heavier than males. The smallest mature individual in the Aegean Sea, was observed to be 125 mm ML for females and 117 mm ML for males. The size-at maturity ML50 was calculated separately for males and females, and first maturation was reached at 164.8 mm ML for females and 139.3 mm ML for males. There were two peaks in GSI of females, one in spring and the other in autumn/early winter. Potential fecundities of mature females were between 46500 and 190000 and, there were 3000–7000 ripe eggs in both oviducts. Oocytes size groups distribution in ovary was bimodal at maturing, mature and advanced mature individuals so ovulation pattern was group-synchronous and reproductive strategy was supposed to be intermittent terminal spawning.
机译：Illex coindetii的样本是在爱琴海（地中海东部）以150、350和550 m的深度用底拖网收集的。从2008年5月至2009年4月，每月进行一次抽样。总共收集了1415株金银花个体（男性551名，女性688名，未确认身份的176名）。长度与重量的关系显示出负的异形。性别之间在长度-体重关系方面存在差异，女性比男性更大，更重。在爱琴海中，最小的成熟个体是雌性为125 mm ML，雄性为117 mm ML。雄性和雌性分别计算出成熟时的大小ML50，雌性首次成熟度为164.8 mm ML，雄性达到139.3 mm ML。女性的GSI有两个高峰，一个在春季，另一个在秋季/初冬。成熟雌性的潜在产卵量在46500至190000之间，两个输卵管中都有3000-7000个成熟卵。在成熟，成熟和晚期成熟个体中，卵母细胞在卵巢中的大小群分布是双峰的，因此排卵模式是群体同步的，生殖策略被认为是间歇性的终末产卵。

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