{"title":"REPRODUCTIVE TRAITS OF NORTH AMERICAN CAJUN DWARF CRAYFISH (CAMBARELLUS SHUFELDTII) FROM THE NECHES RIVER NATIONAL WILDLIFE REFUGE","authors":"E. Hinkle, N. Ford","doi":"10.1894/0038-4909-65.1.56","DOIUrl":null,"url":null,"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.","PeriodicalId":51157,"journal":{"name":"Southwestern Naturalist","volume":null,"pages":null},"PeriodicalIF":0.2000,"publicationDate":"2021-05-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Southwestern Naturalist","FirstCategoryId":"93","ListUrlMain":"https://doi.org/10.1894/0038-4909-65.1.56","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"Agricultural and Biological Sciences","Score":null,"Total":0}
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.
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.
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