Low genetic diversity and limited gene flow between populations of lane snapper (Lutjanus synagris) from the Mexican Caribbean and Gulf of Mexico

IF 1.7 4区环境科学与生态学 Q3 ECOLOGY

Aquatic Ecology Pub Date : 2025-01-07 DOI:10.1007/s10452-024-10169-4

Manuel Montejo-Sosa, Carmen Amelia Villegas-Sánchez, Jaime Martínez-Castillo, Matilde Margarita Ortiz-García, José Héctor Lara-Arenas, Rigoberto Rosas-Luis

{"title":"Low genetic diversity and limited gene flow between populations of lane snapper (Lutjanus synagris) from the Mexican Caribbean and Gulf of Mexico","authors":"Manuel Montejo-Sosa, Carmen Amelia Villegas-Sánchez, Jaime Martínez-Castillo, Matilde Margarita Ortiz-García, José Héctor Lara-Arenas, Rigoberto Rosas-Luis","doi":"10.1007/s10452-024-10169-4","DOIUrl":null,"url":null,"abstract":"<div><p>The lane snapper (<i>Lutjanus synagris</i>) is a valuable fishery resource vulnerable to various threats in the Mexican Atlantic, including coral reef degradation, damage to seagrass beds, massive influxes of sargassum, decline of other commercially important species, as well as its slow growth rate and late sexual maturity. Various studies have reported genetic differences and low genetic diversity in lane snapper populations; however, no information is currently available for populations along the Mexican Atlantic coast. Hence, this study aimed to assess the genetic connectivity levels among <i>L. synagris</i> populations across four sites spanning 1400 km of coastline in the Mexican Atlantic. Results showed that allele frequencies are statistically different across populations, yet no relationship was found between genetic flow and geographical distances. Additionally, low genetic diversity was observed in all populations compared to Atlantic-wide studies. The Garza-Williamson index suggested that the studied populations experienced a size reduction. This study highlights the need to regulate the fishing of this species.</p></div>","PeriodicalId":8262,"journal":{"name":"Aquatic Ecology","volume":"59 2","pages":"395 - 406"},"PeriodicalIF":1.7000,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Aquatic Ecology","FirstCategoryId":"93","ListUrlMain":"https://link.springer.com/article/10.1007/s10452-024-10169-4","RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ECOLOGY","Score":null,"Total":0}

引用次数: 0

Abstract

The lane snapper (Lutjanus synagris) is a valuable fishery resource vulnerable to various threats in the Mexican Atlantic, including coral reef degradation, damage to seagrass beds, massive influxes of sargassum, decline of other commercially important species, as well as its slow growth rate and late sexual maturity. Various studies have reported genetic differences and low genetic diversity in lane snapper populations; however, no information is currently available for populations along the Mexican Atlantic coast. Hence, this study aimed to assess the genetic connectivity levels among L. synagris populations across four sites spanning 1400 km of coastline in the Mexican Atlantic. Results showed that allele frequencies are statistically different across populations, yet no relationship was found between genetic flow and geographical distances. Additionally, low genetic diversity was observed in all populations compared to Atlantic-wide studies. The Garza-Williamson index suggested that the studied populations experienced a size reduction. This study highlights the need to regulate the fishing of this species.

查看原文本刊更多论文

来自墨西哥加勒比海和墨西哥湾的蓝鲷种群间遗传多样性低和基因流动有限

蓝鲷（Lutjanus synagris）是一种宝贵的渔业资源，在墨西哥大西洋容易受到各种威胁，包括珊瑚礁退化，海草床破坏，马尾藻大量涌入，其他重要商业物种的减少，以及其生长速度慢和性成熟晚。各种研究报告了稻鲷种群的遗传差异和低遗传多样性；然而，目前没有关于墨西哥大西洋沿岸种群的信息。因此，本研究旨在评估在墨西哥大西洋1400公里海岸线上四个地点的羊草种群之间的遗传连通性水平。结果表明，等位基因频率在不同种群间存在统计学差异，但遗传流与地理距离之间没有关系。此外，与大西洋范围的研究相比，在所有人群中观察到较低的遗传多样性。Garza-Williamson指数表明，被研究的种群经历了规模缩小。这项研究强调了规范该物种捕捞的必要性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Aquatic Ecology 环境科学-海洋与淡水生物学

CiteScore

3.90

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： Aquatic Ecology publishes timely, peer-reviewed original papers relating to the ecology of fresh, brackish, estuarine and marine environments. Papers on fundamental and applied novel research in both the field and the laboratory, including descriptive or experimental studies, will be included in the journal. Preference will be given to studies that address timely and current topics and are integrative and critical in approach. We discourage papers that describe presence and abundance of aquatic biota in local habitats as well as papers that are pure systematic. The journal provides a forum for the aquatic ecologist - limnologist and oceanologist alike- to discuss ecological issues related to processes and structures at different integration levels from individuals to populations, to communities and entire ecosystems.