墨西哥湾南部灰鲷鱼的繁殖

IF 0.8 4区 生物学 Q4 MARINE & FRESHWATER BIOLOGY Scientia Marina Pub Date : 2022-12-14 DOI:10.3989/scimar.05293.047
Karina del C. Macal-López, T. Brulé, J. R. Torres-Villegas, T. Colás-Marrufo, V. E. Noh-Quiñones
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引用次数: 0

摘要

鲷鱼在不同的生境分布下表现出生殖性状的可塑性。griseus是大西洋中部西部最具经济价值的鲷鱼之一,但在该地区的研究有限。在墨西哥尤卡坦半岛的大陆架上收集了L. griseus种群的生殖生物学资料。在19个月的时间里,每月在尤卡坦三个手工捕鱼船队的作业区域捕获1236个标本。数据按月分组,以产生年度分析。通过性腺组织学鉴定个体性别和成熟状态。雌性(33.2 cm叉长[FL])和雄性(33.3 cm叉长[FL])的中位数大小无差异,性别比例平衡(F:M=0.98:1.00)。雌鱼成熟时体长为24.2 cm FL(占最大体长的38%),雄鱼成熟时体长为22.8 cm FL(占最大体长的36%),产卵季节为5 ~ 9月。结果表明,该种群具有典型的大陆架或浅水区鲷鱼的繁殖模式,为墨西哥湾南部灰鳞鲷种群的资源评估和管理措施的实施提供了重要数据。
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Reproduction of grey snapper (Teleostei: Lutjanidae) in the southern Gulf of Mexico
Snappers exhibit reproductive trait plasticity in response to habitat distribution. Lutjanus griseus is among the most economically important snappers in the western Central Atlantic but has received limited study in the region. Data on the reproductive biology of the L. griseus population were collected on the continental shelf of the Yucatan Peninsula, Mexico. Over a nineteen-month period, 1236 specimens were captured monthly in three Yucatan artisanal fishing fleet operational areas. Data were grouped by month to generate an annual analysis. Individual sex and maturation status were identified by gonad histology. Median size did not differ between females (33.2 cm fork length [FL]) and males (33.3 cm FL), and the sex ratio was balanced (F:M=0.98:1.00). Size at maturity was 24.2 cm FL for females (38% of maximum size reported for the species) and 22.8 cm FL for males (36% of maximum size), and the spawning season ran from May to September. The results confirm that this population exhibits the typical reproductive pattern of snappers distributed on continental shelves or in shallow water areas and provide critical data for stock assessment and implementation of management measures for L. griseus stock in the southern Gulf of Mexico.
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来源期刊
Scientia Marina
Scientia Marina 生物-海洋与淡水生物学
CiteScore
2.10
自引率
0.00%
发文量
21
审稿时长
6-12 weeks
期刊介绍: Scientia Marina is the successor to Investigación Pesquera, a journal of marine sciences published since 1955 by the Institut de Ciències del Mar de Barcelona (CSIC). Scientia Marina is included in the Science Citation Index since 1998 and publishes original papers, reviews and comments concerning research in the following fields: Marine Biology and Ecology, Fisheries and Fisheries Ecology, Systematics, Faunistics and Marine Biogeography, Physical Oceanography, Chemical Oceanography, and Marine Geology. Emphasis is placed on articles of an interdisciplinary nature and of general interest.
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