{"title":"A Morphometric Assessment of Non-indigenous Populations of Pterygoplichthys pardalis (Pisces, Loricariidae) in Jamaica","authors":"Aisha Bailey, E. Hyslop","doi":"10.18475/cjos.v51i2.a7","DOIUrl":null,"url":null,"abstract":"Abstract A morphometric investigation of suckermouth catfish specimens collected from the Upper and Lower Morass of Black River, St. Elizabeth, Jamaica was conducted between June 2007 and May 2008. Descriptions of 39 morphometric and 15 meristic measures are given. Taxonomic assessment through the application of dichotomous keys, photographic identification, and comparison with other morphometric work on similar species, identified the loricariid as Pterygoplichthys pardalis (Pisces, Loricariidae). Further analysis revealed that populations of P. pardalis in the Upper Morass have relatively longer heads, longer snouts, longer and deeper caudal penduncles, and deeper dorsal fins compared with individuals from the Lower Morass. Principal Component Analysis (PCA) showed no distinct groups of P. pardalis occurring throughout the Black River Basin. Both populations exhibited allometric growth and the relationships between length and weight in the P. pardalis populations were significant and linear.","PeriodicalId":55274,"journal":{"name":"Caribbean Journal of Science","volume":"51 1","pages":"202 - 212"},"PeriodicalIF":0.5000,"publicationDate":"2021-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Caribbean Journal of Science","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.18475/cjos.v51i2.a7","RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"BIODIVERSITY CONSERVATION","Score":null,"Total":0}
引用次数: 0
Abstract
Abstract A morphometric investigation of suckermouth catfish specimens collected from the Upper and Lower Morass of Black River, St. Elizabeth, Jamaica was conducted between June 2007 and May 2008. Descriptions of 39 morphometric and 15 meristic measures are given. Taxonomic assessment through the application of dichotomous keys, photographic identification, and comparison with other morphometric work on similar species, identified the loricariid as Pterygoplichthys pardalis (Pisces, Loricariidae). Further analysis revealed that populations of P. pardalis in the Upper Morass have relatively longer heads, longer snouts, longer and deeper caudal penduncles, and deeper dorsal fins compared with individuals from the Lower Morass. Principal Component Analysis (PCA) showed no distinct groups of P. pardalis occurring throughout the Black River Basin. Both populations exhibited allometric growth and the relationships between length and weight in the P. pardalis populations were significant and linear.
期刊介绍：
The Caribbean Journal of Science publishes articles, research notes, and book reviews pertinent to natural science of the Caribbean region. The emphasis is on botany, zoology, ecology, conservation biology and management, geology, archaeology, and paleontology. The mission as a nonprofit scholarly journal is to publish quality, peer-reviewed papers and to make them widely available.
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