在圭亚那海岸附近的小规模网渔业的特征
Rovindra Lakenarine1,2, Netra Chhetri1, Neha Chhetri1
1School for the Future of Innovation in Society, College of Global Futures, Arizona State University, Tempe, Arizona, United States of America.
PloS one
|June 28, 2024
概括
在圭亚那的副捕获.
科学领域:
- 海洋生物学 海洋生物学
- 渔业 科学 渔业 科学
- 保护生物学 保护生物学
背景情况:
- 由于过度捕捞和不可持续的做法,全球鱼类种群正在下降,附捕 (非目标物种的偶然捕获) 是一个主要问题.
- 圭亚那的渔业对民生和国内生产总值至关重要,但由于管理和数据有限,附带捕捞对特别是小规模部门构成重大威胁.
- 了解副捕获动态对于圭亚那的可持续渔业管理至关重要.
研究的目的:
- 评估圭亚那工业网和中国海渔业的副捕获情况.
- 评估渔民对附带捕捞问题的看法和意识.
- 为改善渔业可持续性提供建议.
主要方法:
- 进行船只观测以记录副捕获.
- 与当地渔民进行了半结构化采访.
- 通过使用多样性和相似性指数 (Shannon-Weiner, Jaccard) 分析了副捕获数据.
主要成果:
- 大多数被抛弃的物种缺乏商业意义;中国海渔业有更多被抛弃的个体,主要是幼.
- 鱼渔业表现出比中国海渔业更多的辅捕物种多样性.
- 渔民们意识到副捕获,但并没有将其视为一个主要问题,对减少丢弃很少感兴趣.
结论:
- 在圭亚那的小渔业中,副捕获很普遍,对幼鱼种群和整体生物多样性产生影响.
- 需要一种协作方法来解决副捕获问题,并确保圭亚那渔业的生态和社会经济可持续性.
- 建议进行进一步的研究和有针对性的管理干预措施.
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