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首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Effects of injured conspecifics and predators on byssogenesis, attachment strength and movement in the blue mussel, Mytilus edulis
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Effects of injured conspecifics and predators on byssogenesis, attachment strength and movement in the blue mussel, Mytilus edulis

机译：受伤的物种和捕食者对蓝贻贝（Mytilus edulis）的胚发生，附着强度和运动的影响

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摘要

Mussels respond to threats from predators by increasing anti-predator traits, which include a suite of inducible defenses. Blue mussels (Mytilus edulis) can modify the strength, number and attachment site of byssal threads in . response to water borne cues from predators and injured conspecifics. We quantified byssal thread production, attachment strength and movement in blue mussels of two size classes in response to effluent from the American lobster Homarus americanus, the rock crab Cancer irroratus, the sea star Asterias rubens, and injured conspecific mussels. In a factorial laboratory experiment effluent from the predatory crab, C irroratus, resulted in higher numbers of functional byssal threads compared only to exposure to injured conspecific mussels, and not to any other treatment group. Large mussels produced stronger byssal attachments than small mussels. Over 24 h, small mussels formed and released more byssus bundles than large mussels, an indication of increased movement Small mussels started producing byssal threads sooner than large mussels. Mussels exposed to effluent from injured conspecific mussels began producing byssal threads earlier, compared to the control and not to any other treatment group. Our results show that byssogenesis was influenced by predator type and mussel size, whereas attachment strength and movement depended on mussel size. This study highlights the ability of two size classes of blue mussels to selectively alter byssal thread production and movement in the presence of injured conspecifics and potential predators.
机译：贻贝通过增加反捕食者特征（包括一系列诱导防御）来应对捕食者的威胁。蓝贻贝（Mytilus edulis）可以改变基底螺线的强度，数量和附着部位。对捕食者和受伤的物种的水暗示的反应。我们对两种大小的蓝贻贝中的底线生产，附着强度和运动进行了定量分析，以响应美洲龙虾，美国大螯蟹，巨蟹蟹irroratus，海星Asterias rubens和受伤的同种贻贝的流出物。在掠夺性螃蟹C irroratus的析因实验室实验中，与仅暴露于受伤的同种贻贝相比，而与其他任何治疗组相比，导致的功能性绕线更多。大贻贝比小贻贝产生更强的附生附件。在24小时内，小贻贝比大贻贝形成并释放出比苏索更多的捆束，这表明运动增强了。小贻贝比大贻贝更早开始产生比苏线。与对照组相比，暴露于受伤的同种贻贝流出物中的贻贝开始产生基底线，而不是其他任何治疗组。我们的结果表明，成虫作用受捕食者类型和贻贝大小的影响，而附着强度和运动取决于贻贝的大小。这项研究强调了在受伤的同种异体和潜在掠食者的存在下，两种大小等级的蓝贻贝能够选择性地改变底线的产生和运动。

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