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首页> 外文期刊>Freshwater science >Servants, scoundrels, and hitchhikers: current understanding of the complex interactions between crayfish and their ectosymbiotic worms (Branchiobdellida)
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Servants, scoundrels, and hitchhikers: current understanding of the complex interactions between crayfish and their ectosymbiotic worms (Branchiobdellida)

机译：仆人，sc徒和旅行者：目前对小龙虾及其外共生蠕虫（Branchiobdellida）之间复杂相互作用的理解

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摘要

Astacoidean crayfishes serve as hosts to obligate ectosymbiotic annelids called branchiobdellidans. Branchiobdellidans can act either as mutualistic cleaners or as ectoparasites and can have strong effects on crayfish growth and survivorship. This potentially vital aspect of crayfish biology has gone largely unexplored until recently. We reviewed the current state of knowledge regarding this symbiosis and examined factors that contribute to variability in the effects of branchiobdellidans on crayfish. We show that branchiobdellidans affect crayfish in various ways depending on branchiobdellidan species, abundance, and ecological context. We also discuss evidence for regulatory controls that crayfish exert over their symbionts and symbiont-host preferences. Last, we evaluate the utility and challenges of using the crayfish-branchiobdellidan association as a model system for ecological and evolutionary research and point to promising areas for future study. Further investigations of the complex interactions between crayfish and their ectosymbionts will greatly advance the field of crayfish biology and offer many exciting opportunities for the study of symbioses.
机译：Astacoidean小龙虾可作为宿主，分担称为异枝线虫类的共生寄生虫。 io形纲科目动物既可以充当互惠清洁者，也可以充当体外寄生虫，并且可以对小龙虾的生长和生存产生巨大影响。直到最近，小龙虾生物学的这一潜在的至关重要方面仍未得到充分研究。我们审查了有关这种共生的知识的现状，并检查了导致小龙虾对io鱼的影响变化的因素。我们表明，根据鲍氏鲍鱼的种类，丰度和生态环境，鲍氏鲍鱼以各种方式影响小龙虾。我们还讨论了小龙虾对共生体和共生体宿主偏好所施加的监管控制证据。最后，我们评估了将小龙虾-branchiobdellidan协会用作生态和进化研究的模型系统的效用和面临的挑战，并指出了有前途的研究领域。对小龙虾及其胞外共生体之间复杂相互作用的进一步研究将极大地促进小龙虾生物学领域的发展，并为共生酶的研究提供许多令人兴奋的机会。

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