与社区渔民合作,确定两种常见目标杰克物种的产卵季节

IF 1.8 3区 农林科学 Q2 FISHERIES Marine and Coastal Fisheries Pub Date : 2023-10-20 DOI:10.1002/mcf2.10264
Cassandra Pardee, John Wiley, Taylor Fendrick
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引用次数: 0

摘要

目的通过与当地渔民的合作,确定夏威夷境内两种高度针对性的杰克(锦囊鱼科;巨型Trevaly〔在夏威夷被称为ulua aukea〕Carnx ignobilis和蓝鳍Trevaly(在夏威夷被知为‘ōmilu〕Caraxmelampygus)的产卵季节性。方法通过与志愿渔民合作,我们在夏威夷四个主要岛屿上的15个月内,采集了巨人和蓝鳍金枪鱼的性腺样本。使用性腺组织学样本和月平均性腺指数(GSI)评估产卵季节性。结果渔业参与成功地收集了了解这些物种产卵季节性所需的生物样本。根据研究人员的初步指示,参与者能够宏观识别雌性何时产卵与未发育。成熟女性GSI得出与组织学分析相似的结论。这两个物种在2月至9月之间都有产卵季节,5月至7月是产卵高峰期。在产卵月份,观察到巨型Trevaly的半月产卵模式,GSI峰值出现在满月前不久。蓝鳍Trevaly具有更高的可变性,没有明显的月球周期性。结论培训渔民参与科学过程并收集性腺样本,建立了对科学的信任,并有兴趣更多地了解其捕获物的生物学。通过不断通过社交媒体分享我们的进展和成果,我们能够与更大的渔业社区接触并建立信任。
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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Working with community fishers to determine the spawning seasonality of two commonly targeted jack species

Objective

To determine the spawning seasonality of two highly targeted jacks (Carangidae; Giant Trevally [known in Hawai’i as ulua aukea] Caranx ignobilis and Bluefin Trevally [known in Hawai’i as ‘ōmilu] Caranx melampygus) within Hawai’i through a collaborative effort with local fishers.

Methods

By working with volunteer fishers, we collected gonad samples for Giant and Bluefin trevally throughout a 15-month period on four of the main Hawaiian Islands. Spawning seasonality was assessed using histological gonad samples as well as mean monthly gonadosomatic index (GSI).

Result

Fishery involvement proved successful in collecting biological samples needed to understand the spawning seasonality of these species. Participants were able to macroscopically identify when females were spawning versus undeveloped following initial instruction from the researchers. Mature female GSI resulted in similar conclusions as histological analyses. Both species had a spawning season between February and September, with peak spawning occurring from May to July. During the spawning months, a semilunar spawning pattern was observed for Giant Trevally with peak GSI occurring shortly before the full moon. Bluefin Trevally had higher variability, with no distinct lunar periodicity.

Conclusion

Training fishers to be a part of the scientific process and collect gonad samples created trust in science and interest in learning more about the biology of their catch. By consistently sharing our progress and results through social media we were able to engage and build trust with the greater fishing community.

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来源期刊
Marine and Coastal Fisheries
Marine and Coastal Fisheries FISHERIES-MARINE & FRESHWATER BIOLOGY
CiteScore
3.40
自引率
5.90%
发文量
40
审稿时长
>12 weeks
期刊介绍: Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science publishes original and innovative research that synthesizes information on biological organization across spatial and temporal scales to promote ecologically sound fisheries science and management. This open-access, online journal published by the American Fisheries Society provides an international venue for studies of marine, coastal, and estuarine fisheries, with emphasis on species'' performance and responses to perturbations in their environment, and promotes the development of ecosystem-based fisheries science and management.
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