Diet of larval albacore Thunnus alalunga (Bonnaterre, 1788) off Mallorca Island (NW Mediterranean)

Diet of larval albacore Thunnus alalunga (Bonnaterre, 1788) off Mallorca Island (NW Mediterranean)
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马略卡岛（地中海西北部）附近的长鳍金枪鱼幼虫 Thunnus alalunga (Bonnaterre, 1788) 的饮食

DOI：
10.3989/scimar.2007.71n2347
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发表时间：
2007
期刊：
Scientia Marina
影响因子：
1.4
通讯作者：
B. Morales
B. Morales
中科院分区：
生物学4区
文献类型：
--
作者：
I. Catalán;F. Alemany;Ana Morillas;B. Morales

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这是第一次在地中海的幼长鳍金枪鱼（Thunnus alalunga Bonnaterre，1788）的喂养数据。标本收集从白天的bongo-hauls进行了西南马略卡（巴利阿里群岛）陆架斜坡。98%的101个个体，从2.65至9.4毫米标准长度（SL）包含1至15个猎物项目每肠。平均每肠猎物数为3.55 ± 2.19（SD）。幼虫SL和猎物/肠道的数量之间呈正相关。对出现频率（F）、数量频率（N）、重量频率（W）和相对重要性指数（IRI）的分析表明，桡足类和无节幼体在最小径级中占优势。随着幼虫的生长，枝角类和哲水蚤桡足类占主导地位的饮食，和枝角类和桡足类是重要的F，N和W。在脊索屈曲后观察到食鱼性，并且在W方面是重要的。平均猎物大小和SL和下颌长度（LJL）之间的正相关关系进行了观察。生态位宽度（S）不随LJL变化，但原始猎物大小范围。较大的桡足类，无节幼体的情况下，并纳入鱼的幼虫和大量的枝角类在饮食中占平均猎物大小的增加，通过增加幼虫的大小。
These are the first data on the feeding of larval albacore ( Thunnus alalunga Bonnaterre, 1788) in the Mediterranean. Specimens were gathered from day-time bongo-hauls conducted over the SW Mallorcan (Balearic Islands) shelf-slope. Ninety eight percent of 101 individuals ranging from 2.65 to 9.4 mm standard length (SL) contained 1 to 15 prey items per gut. Mean number of prey/gut was 3.55 ± 2.19 (SD). A positive correlation was found between larval SL and the number of prey/gut. The analysis of frequency of occurrence (F), numerical frequency (N), weight frequency (W) and the Index of Relative Importance (IRI) showed a dominance of copepodites and nauplii in the smallest size-class. As larvae grew, cladocerans and Calanoida copepodites dominated the diet, and cladocerans and copepodites were important in F, N and W. Piscivory was observed after notochord flexion and was important in terms of W. A positive correlation between mean prey size and both SL and lower jaw length (LJL) was observed. The niche breadth (S) did not vary with LJL, but the raw prey size range did. Larger copepodites, the absence of nauplii and the incorporation of fish larvae and a larger number of cladocerans in the diet accounted for the increase in mean prey size through increased larval size.
Metamorphosis and early survival in teleost.
硬骨鱼的变态和早期存活。
DOI： --
发表时间： 2002
期刊： KAIYO MONTHLY Extra No.29
影响因子： --
作者：
TAGAWA;Masatomo
通讯作者： Masatomo
Genetic isolation between Atlantic and Mediterranean albacore (Thunnus alalunga) populations inferred from mitochondrial and nuclear DNA markers.
根据线粒体和核 DNA 标记推断大西洋和地中海长鳍金枪鱼 (Thunnus alalunga) 种群之间的遗传隔离。
DOI： --
发表时间： 2005
期刊： Journal of Fish Biology 66
影响因子： --
作者：
Nakadate;M.
通讯作者： M.
Precocious development of the digestive system in relation to early appearance of piscivory in striped bonito Sarda orientalis larvae.
条纹鲣鱼幼虫消化系统的早熟发育与鱼食性的早期出现有关。
DOI： --
发表时间： 2002
期刊： Fisheries Science 68
影响因子： --
作者：
KAJI;Tatsuya
通讯作者： Tatsuya