巴西São Francisco河流域阿根廷原蠊的迁徙行为

IF 2 3区农林科学 Q2 FISHERIES

Fisheries Management and Ecology Pub Date : 2023-07-11 DOI:10.1111/fme.12644

Alexandre Peressin, João de Magalhães Lopes, Lídia Wouters, Francisco Ricardo Andrade Neto, Carlos Bernardo Mascarenhas Alves, Paulo Santos Pompeu

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引用次数: 0

摘要

我们在一条横跨约 450 公里的自由水流遗迹中对库里玛塔帕库（Prochilodus argenteus）的迁徙行为和产卵情况进行了评估。评估采用了无线电标记和卵取样的方法，并通过代谢编码技术进行了鉴定。在所研究的个体中，有一半向上游洄游了 100-365 公里，主要是为了应对雨季开始时河水流量的增加。相反，其余的鱼没有表现出逆流而上的行为，这表明它们有部分洄游行为。鱼卵只出现在上游地区，这表明繁殖只发生在栖息在上游地区的鱼类身上。观察到的洄游特征与其他同科鱼类相似。

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Migratory behavior of Prochilodus argenteus in the São Francisco River Basin, Brazil

The migratory behavior and spawning of Curimatá-pacu (Prochilodus argenteus) were assessed in a free-flowing remnant spanning approximately 450 km. This evaluation was conducted using radio-tagging and egg sampling, with identification performed through metabarcoding techniques. Among the studied individuals, half migrated 100–365 km upstream, primarily in response to the initial rise in river discharge at the onset of the wet season. Conversely, the remaining fish did not exhibit upstream movement, indicating a partial migratory behavior. The presence of eggs exclusively in the headwaters suggests that breeding occurred solely among fish inhabiting the upstream sites. The observed migratory traits resembled those of other congeneric species.

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来源期刊

Fisheries Management and Ecology 农林科学-渔业

CiteScore

3.80

自引率

5.00%

发文量

审稿时长

12-24 weeks

期刊介绍： Fisheries Management and Ecology is a journal with an international perspective. It presents papers that cover all aspects of the management, ecology and conservation of inland, estuarine and coastal fisheries. The Journal aims to: foster an understanding of the maintenance, development and management of the conditions under which fish populations and communities thrive, and how they and their habitat can be conserved and enhanced; promote a thorough understanding of the dual nature of fisheries as valuable resources exploited for food, recreational and commercial purposes and as pivotal indicators of aquatic habitat quality and conservation status; help fisheries managers focus upon policy, management, operational, conservation and ecological issues; assist fisheries ecologists become more aware of the needs of managers for information, techniques, tools and concepts; integrate ecological studies with all aspects of management; ensure that the conservation of fisheries and their environments is a recurring theme in fisheries and aquatic management.