REPRODUCTIVE TRAITS OF NORTH AMERICAN CAJUN DWARF CRAYFISH (CAMBARELLUS SHUFELDTII) FROM THE NECHES RIVER NATIONAL WILDLIFE REFUGE

IF 0.2 4区环境科学与生态学 Q4 Agricultural and Biological Sciences

Southwestern Naturalist Pub Date : 2021-05-10 DOI:10.1894/0038-4909-65.1.56

E. Hinkle, N. Ford

引用次数: 0

Abstract

Abstract The Cajun dwarf crayfish (Cambarellus shufeldtii) is among the most broadly ranging dwarf crayfish species in North America. Little is known about the species' reproductive cycle in east Texas populations, and even less is known about the relationship between female body size and reproductive traits. This study seeks to characterize some reproductive traits of female C. shufeldtii as they correlate to body size. We recorded measurements of 23 berried specimens collected from an east Texas freshwater marsh, and established a positive correlation between female carapace length and number of eggs, as well as female total length and number of juveniles. Females were larger and had larger clutches than those reported from Louisiana. We also present some laboratory evidence for females reproducing multiple times in a single reproductive season.

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neches河国家野生动物保护区北美Cajun小龙虾(cambarellus shufeldtii)的生殖特性

卡津小龙虾(Cambarellus shufeldtii)是北美分布最广泛的小龙虾物种之一。人们对东德克萨斯种群的繁殖周期知之甚少，对雌性体型和繁殖特征之间的关系了解得更少。本研究试图描述一些生殖特征的雌性C. shufeldtii，因为它们与体型有关。对德克萨斯州东部淡水沼泽中采集的23个浆果标本进行了测量，发现雌性甲壳长度与卵数、雌性总长度与幼鱼数呈正相关。与路易斯安那州报道的相比，雌性体型更大，产仔也更多。我们还提供了一些雌性在一个繁殖季节多次繁殖的实验室证据。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Southwestern Naturalist 环境科学-生态学

CiteScore

0.50

自引率

50.00%

发文量

审稿时长

18-36 weeks

期刊介绍： The Southwestern Naturalist (a publication of the Southwestern Association of Naturalists since 1953) is an international journal (published quarterly) that reports original and significant research in any field of natural history. This journal promotes the study of plants and animals (living and fossil) in the multinational region that includes the southwestern United States, Mexico, and Central America. Appropriate submission of manuscripts may come from studies conducted in the countries of focus or in regions outside this area that report significant findings relating to biota occurring in the southwestern United States, Mexico, and Central America. Publication is in English, and manuscripts may be feature articles or notes. Feature articles communicate results of completed scientific investigations, while notes are reserved for short communications (e.g., behavioral observations, range extensions, and other important findings that do not in themselves constitute a comprehensive study). All manuscripts (feature articles and notes) require an abstract in both English and Spanish.