Biología reproductiva de Hatcheria macraei (bagre de torrente) en el Área Natural Protegida la Ciénaga, en el centro oeste de Argentina

IF 0.9 Q4 ECOLOGY Neotropical Biodiversity Pub Date : 2022-07-14 DOI:10.1080/23766808.2022.2097109
A. Valenzuela, F. Gómez, J. Acosta
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Abstract

ABSTRACT The northwestern region of Argentina has several gaps in ichthyogeographic knowledge and there are still bodies of water without records of the species that inhabit them. When planning mitigation projects or conservation or management actions, little knowledge of the biology of a species presents itself as a restriction. Therefore, the objective is to know the reproductive biology of the torrent catfish (H. macraei) in the Natural Protected Area La Ciénaga, San Juan, with the purpose of generating basic information as a tool for the future management of these populations. The torrent catfish, Hatcheria macraei (Girard, 1855) is a Siluriformes that belongs to the Trichomycteridae family, it is a rheophilic and phototactic negative species, which is characterized by living in cold and well-oxygenated waters with sandy and rocky substrates. In a period of one year, fecundity, reproductive potential, minimum reproductive size were determined, sexual dimorphism was evaluated, and the state of gonadal development was described. It was determined that the species presents an opportunistic strategy, presenting a prolonged reproduction period from October to November.
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阿根廷中西部沼泽自然保护区Hatcheria macraei(Torrente鲶鱼)的生殖生物学
摘要阿根廷西北部地区在鱼类地理知识方面存在一些空白,但仍有一些水体没有栖息物种的记录。在规划缓解项目或保护或管理行动时,对一个物种的生物学知之甚少会成为一种限制。因此,我们的目标是了解圣胡安La Ciénaga自然保护区的激流鲶鱼(H.macraei)的繁殖生物学,目的是生成基本信息,作为未来管理这些种群的工具。Hatcheria macraei洪流鲶鱼(Girard,1855)是毛滴虫科的一种鲇形目,是一种亲流变性和趋光性阴性的物种,其特征是生活在沙质和岩石基质的寒冷和充氧良好的水域。在一年的时间里,确定了繁殖力、繁殖潜力、最小繁殖大小,评估了两性异形,并描述了性腺发育的状态。据确定,该物种呈现出机会主义策略,繁殖期从10月到11月延长。
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来源期刊
Neotropical Biodiversity
Neotropical Biodiversity Environmental Science-Ecology
CiteScore
1.80
自引率
0.00%
发文量
39
审稿时长
24 weeks
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