蟹类 Cancer productus Randall, 1840 和 Pugettia producta (Randall, 1840) (Decapoda: Brachyura: Cancridae, Epialtidae) 的食鱼行为

IF 1.2 4区生物学 Q3 MARINE & FRESHWATER BIOLOGY

Journal of Crustacean Biology Pub Date : 2024-07-17 DOI:10.1093/jcbiol/ruae042

Gregory C Jensen

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引用次数: 0

摘要

在野外观察到 Cancer productus Randall, 1840 和 Pugettia producta (Randall, 1840) 以活的箭鱼为食，这对于软体动物 C. productus 和草食性的 P. producta 来说是一种意想不到的行为。人们看到螃蟹采用了一种推测性的捕食技术，即扑向一簇簇藻类或沉积物的空旷区域，然后用桡足类进行探测。这些行为表明，涉及螃蟹的食物网关系可能比通常认为的要复杂得多。

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Piscivory by the crabs Cancer productus Randall, 1840 and Pugettia producta (Randall, 1840) (Decapoda: Brachyura: Cancridae, Epialtidae)

Cancer productus Randall, 1840 and Pugettia producta (Randall, 1840) have been observed in the field feeding on live teleost fishes, an unexpected behavior for the molluscivorous C. productus and the largely herbivorous P. producta. Crabs were seen employing a speculative hunting technique of pouncing on tufts of algae or open areas of sediment followed by probing with the pereopods. Such behaviors suggest that food web relationships involving crabs may be much more complex than usually assumed.

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来源期刊

Journal of Crustacean Biology 生物-海洋与淡水生物学

CiteScore

2.10

自引率

9.10%

发文量

审稿时长

6-12 weeks

期刊介绍： The Journal of Crustacean Biology is the official journal of The Crustacean Society, publishing peer-reviewed research on all aspects of crustacean biology and other marine arthropods. Papers are published in English only, but abstracts or summaries in French, German, Portuguese, or Spanish may be added when appropriate.