Traits affect the survival and reproduction of individuals in different habitat conditions, ultimately altering their distributions. In the oceans, changes in environmental conditions with bathymetry may influence the occurrence of specific traits. Therefore, characterizing trait variation with depth can illuminate drivers related to the distribution of diversity of forms, functions, and life histories. We aimed to investigate patterns of variation in the diversified life histories and morphologies of hydroids with depth, integrating these patterns with the natural history of the group and ecological principles of the deep sea.

中文翻译：

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性状和深度：关于深海的形态和生命史策略，水合物能告诉我们什么？

性状影响不同生境条件下个体的生存和繁殖，最终改变其分布。在海洋中，通过测深法改变环境条件可能会影响特定性状的发生。因此，用深度描述特征变化可以阐明与形式，功能和生活历史多样性分布有关的驱动因素。我们旨在研究多种生命历史和水样形态的深度变化模式，并将这些模式与群体的自然历史和深海生态原理相结合。