菲律宾维萨扬海西部的龙虾鱼苗渔业:数量、渔获物组成和潜在的渔业影响

IF 2.3 3区 地球科学 Q2 OCEANOGRAPHY Deep-sea Research Part Ii-topical Studies in Oceanography Pub Date : 2023-09-01 DOI:10.1016/j.dsr2.2023.105324
Alexanra Bagarinao-Regalado, Wilfredo L. Campos, Lucas R. Felix Jr., Ryan Dexter Piloton
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引用次数: 0

摘要

Lobo-Lobo是在维萨扬海西部使用细网捕捞的小型鱼类,其市场延伸到维萨扬海外,甚至可能延伸到国外。由于消费者需求高,它全年都有针对性。从2016年6月至12月和2020年6月到2021年10月,每天监测在伊洛伊洛康塞普西翁附近水域作业的细网围网的捕获量,这些围网针对大量小型和早期幼鱼。结果表明,渔获物由几个物种组成,清楚地表明了lobo-lobo渔业对早期幼鱼的选择。至少有53个科组成了lobo-lobo渔获物,以Engraulidae(78.5%)和Clupeidae(13.1%)为主,主要由标准长度为0.2至3.6厘米的后期幼虫和早期幼体组成。研究期间,当地围网船队的年总渔获量估计在313.8公吨至869.0公吨之间。捕鱼作业集中在塔戈岛和伊本岛之间,全年似乎一致,但渔获量的组成和比例随季节而不同。这个区域似乎是一个重要的栖息地,支持几个物种的生长和生存。保护这一地区并限制使用针对鱼苗的细网可能会对当地鱼类种群产生总体积极影响。
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The Lobo-lobo fry fishery in the western Visayan Sea, Philippines: Abundance, catch composition, and potential fisheries impact

Lobo-lobo are small fishes that are caught using fine mesh nets in the western Visayan Sea whose market extends outside of the Visayan Sea, and perhaps even outside of the country. With high consumer demands, it is targeted year-round. Catches of fine-meshed boat seines operating in the waters off Concepcion, Iloilo which target large amounts of small and early juvenile fishes were monitored daily from June to December 2016 and June 2020 to October 2021. Results showed that catches were comprised of several species and clearly show the selection for early juveniles by the lobo-lobo fishery. At least 53 families comprise the lobo-lobo catches, dominated by Engraulidae (78.5%) and Clupeidae (13.1%), and are mostly comprised of post-larvae and early juveniles with sizes ranging from 0.2 to 3.6 cm standard length. The estimated total annual catch of the local boat seine fleet during the study period ranged from 313.8 mt to 869.0 mt. The fishing operations are concentrated between Tago and Igbon Islands and appear to be consistent throughout the year, but the composition and proportion of catches differed seasonally. This area appears to be a critical habitat, supporting the growth and survival of several species. Protecting this area and restricting the use of fine-meshed nets targeting fry will likely have an overall positive impact on the local fish stocks.

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来源期刊
CiteScore
6.40
自引率
16.70%
发文量
115
审稿时长
3 months
期刊介绍: Deep-Sea Research Part II: Topical Studies in Oceanography publishes topical issues from the many international and interdisciplinary projects which are undertaken in oceanography. Besides these special issues from projects, the journal publishes collections of papers presented at conferences. The special issues regularly have electronic annexes of non-text material (numerical data, images, images, video, etc.) which are published with the special issues in ScienceDirect. Deep-Sea Research Part II was split off as a separate journal devoted to topical issues in 1993. Its companion journal Deep-Sea Research Part I: Oceanographic Research Papers, publishes the regular research papers in this area.
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