| 太平洋褶柔鱼摄食行为观察研究 |
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| 引用本文： | 裴一凡,陈新军,桜井泰憲. 太平洋褶柔鱼摄食行为观察研究[J]. 上海海洋大学学报, 2014, 23(1): 139-145 |
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| 作者姓名： | 裴一凡 陈新军 桜井泰憲 |
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| 作者单位： | 上海海洋大学 海洋科学学院, 上海 201306;上海海洋大学 海洋科学学院, 上海 201306;上海海洋大学 大洋渔业资源可持续开发省部共建教育部重点实验室, 上海 201306;上海海洋大学 国家远洋渔业工程技术研究中心, 上海 201306;远洋渔业协同创新中心, 上海201306;北海道大学 水产学部, 日本北海道函馆 0418611 |
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| 基金项目： | 国家高技术研究发展计划（2012AA092303）；国家发改委产业化专项（2159999）；上海市科技创新行动计划（12231203900）；国家科技支撑计划（2013BAD13B01） |
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| 摘 要： | 鱿鱼类是摄食极为凶猛的海洋动物。实验条件下对太平洋褶柔鱼(Todarodes pacificus)的摄食行为进行观察与描述,实验分3种不同的太平洋褶柔鱼群体大小(3尾,7~12尾,以及44尾)在循环水水槽中进行,实验用太平洋褶柔鱼平均胴长为20 cm。用高感录像机对太平洋褶柔鱼摄食过程进行记录,同时观察太平洋褶柔鱼对饵料鱼的攻击行为。观察认为,发现、进攻目标饵料鱼阶段的角度范围分别为广分布和窄分布,大多数对饵料鱼的进攻阶段开始于二者相对距离为1到6个胴长间。太平洋褶柔鱼在攻击阶段时其体色表现出暗色模式。在个体多的太平洋褶柔鱼群体中,太平洋褶柔鱼追逐较大的饵料鱼,且有观察到几尾太平洋褶柔鱼共同分食一尾饵料鱼的现象。研究认为,太平洋褶柔鱼摄食行为与自身个体大小、群体大小以及饵料鱼大小等密切相关。
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| 关 键 词： | 太平洋褶柔鱼 摄食行为 体色变化模式 群体大小 |
| 收稿时间： | 2013-08-26 |
| 修稿时间： | 2013-10-25 |
Laboratory observations on the foraging behavior of the Japanese common squid, Todarodes pacificus |
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| PEI Yi-fan,CHEN Xin-jun and SAKURAI Yasunori. Laboratory observations on the foraging behavior of the Japanese common squid, Todarodes pacificus[J]. Journal of Shanghai Ocean University, 2014, 23(1): 139-145 |
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| Authors: | PEI Yi-fan CHEN Xin-jun SAKURAI Yasunori |
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| Affiliation: | College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China;College of Marine Sciences, Shanghai Ocean University, Shanghai 201306, China;The Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China;National Distant-water Fisheries Engineering Research Center, Shanghai Ocean University, Shanghai 201306, China;Collaborative Innovation Center for Distant-water Fisheries, Shanghai 201306, China;Faculty of Fisheries, Hokkaido University, Japan, Hokkaido, Hakodate 0418611 |
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| Abstract: | Squid is a marine animal with extremely ferocious feeding. The foraging behavior of captive Japanese common squid, Todarodes pacificus, was filmed in a circular tank and analyzed. Three shoal sizes (3, 7-12, and 44 individuals) were examined. Squid attacking on prey fish were observed, and the angle ranges for prey detection and attack were found wide and narrow, respectively. The mean mantle length of the squid was 20 cm, and most attacks on prey began when the squid were 1 to 6 mantle lengths away. Squids displayed dark patterns during the attack phases, which could have been a sign of intra-specific communication. In the large shoal size, squid chased bigger prey, and several squid sometimes fed together on a single prey. This might be an alternative strategy when food was scarce. |
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| Keywords: | Todarodes pacificus foraging behavior display pattern shoal size |
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