东地中海一位成功的小西印度群岛移民Pomadasys stridens(Forsskål,1775)的年度繁殖周期(家族:血蝇科)

IF 1 4区 生物学 Q4 ECOLOGY Marine Biology Research Pub Date : 2023-01-02 DOI:10.1080/17451000.2023.2198243
Deniz Eşkinat, A. Gücü, Meltem Ok
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引用次数: 1

摘要

摘要条纹小猪Pomadasys stridens(Forsskål,1775)是通过苏伊士运河进入地中海的成功殖民的小塞移民之一。本研究旨在了解该物种所采用的繁殖策略在多大程度上对其成功建立起了作用。该研究基于2017年1月至2020年11月在地中海东北部进行的月度拖网调查期间收集的样本。通过观察性腺体细胞指数的变化来估计每年的性腺发育周期。能量摄入和分配的季节性模式是从肝体细胞、消化体细胞和相对身体状况指数中获得的。结果表明,该物种的性腺发育期延长,在此期间产卵两次,分别发生在初夏和立冬。对所有相关指标的比较表明,该物种在夏季产卵前同时进食和发育性腺,在最温暖的时期大量进食和储存能量,并在冬季产卵时使用储存的能量。由于这些特征与它们起源的地理位置上的同类没有太大区别,因此有人认为,不是物种的生态可塑性是它们成功的基础,而是它们与地中海生态系统非常吻合的繁殖特征。
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Annual reproductive cycle of a successful Lessepsian immigrant in the Eastern Mediterranean Sea, Pomadasys stridens (Forsskål, 1775) (Family: Haemulidae)
ABSTRACT The striped piggy, Pomadasys stridens (Forsskål, 1775), is one of the successfully colonized Lessepsian immigrants entering the Mediterranean through the Suez Canal. This study was carried out to understand to what extent the reproduction strategy adopted by this species had played a role in its successful establishment. The study is based on samples collected during the monthly trawl surveys conducted between January 2017 to November 2020 in the Northeast Mediterranean. The annual gonadal development cycle was estimated by observing the Gonadosomatic Index changes. Seasonal patterns in energy intake and allocation were acquired from Hepatosomatic, Digestosomatic, and Relative Body Condition indices. The results indicated that the species has prolonged gonadal development periods, during which spawning occurs twice, in early summer and at the onset of the winter. A comparison of all indices involved indicated that the species feeds and develops gonads at the same time before summer spawning, feeds heavily and stores energy during the warmest period, and uses the stored energy in the winter spawning. As these features do not differ much from their congenerics inhabiting the geography they originated from, it is suggested that it was not the ecological plasticity of the species that is the basis of their success but the reproductive traits they have fitted well to the Mediterranean Ecosystem.
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来源期刊
Marine Biology Research
Marine Biology Research 生物-海洋与淡水生物学
CiteScore
2.10
自引率
0.00%
发文量
55
审稿时长
6-12 weeks
期刊介绍: Marine Biology Research (MBRJ) provides a worldwide forum for key information, ideas and discussion on all areas of marine biology and biological oceanography. Founded in 2005 as a merger of two Scandinavian journals, Sarsia and Ophelia, MBRJ is based today at the Institute of Marine Research, Bergen, Norway. The Journal’s scope encompasses basic and applied research from all oceans and marine habitats and on all marine organisms, the main criterium for acceptance being quality.
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