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Recruitment of migratory Characiforms in the different wetland habitats of Central Amazonia: Subsidies for sustainable fisheries management
Journal of Applied Ichthyology ( IF 0.7 ) Pub Date : 2020-04-19 , DOI: 10.1111/jai.14040
Diego M. Zacardi 1 , Suzana Carla S. Bittencourt 2 , Helder L. Queiroz 3
Affiliation  

By promoting the biological recruitment of relevant natural resources, wetlands offer a major ecosystem service. This study investigates the importance of wetland habitats of the central Amazon basin as sites for spawning and/or initial development of seven of the most important commercial Characiforms fish species. In order to confirm this importance, samples of the eggs, larvae, and juveniles of these fish species were collected during the four seasonal phases of the hydrological cycles of 2010 and 2011, in different aquatic environments of the wetland ecosystem in the central Amazon. The results confirmed that the flooding phase is the most important for the spawning of these species, and that they preferred to use the marginal areas of the central Amazon as spawning grounds. The larvae of these species colonize the confluence zone of the rivers and the mouths of the floodplain channels, principally during the initial stages (pre‐flexion) of their ontogenetic development. The channels that connect the lakes to the rivers are the main dispersal route for the larvae, especially those in advanced stages of development (flexion/post‐flexion), towards the internal of the wetland habitats, such as the lakes and large mattresses of floating vegetation. The different wetland habitats of this region provide an extremely important ecosystem service, playing a critical role in the recruitment of commercially‐valuable fish species, and thus require adequate protection and management to ensure the continuity of fisheries and natural stocks.

中文翻译:

在中亚马孙地区不同湿地栖息地招募迁徙性象形纲:对可持续渔业管理的补贴

通过促进相关自然资源的生物募集,湿地提供了主要的生态系统服务。这项研究调查了亚马逊中部盆地湿地栖息地作为7种最重要的商业Characiforms鱼种产卵和/或初步发育的场所的重要性。为了确认这一重要性,在亚马逊中部湿地生态系统的不同水生环境中,在2010年和2011年水文循环的四个季节阶段收集了这些鱼类的卵,幼虫和幼鱼的样本。结果证实,淹水阶段对于这些物种的产卵最为重要,而且他们更喜欢使用亚马逊河中部的边缘地区作为产卵场。这些物种的幼虫定居在河流​​和洪泛区河道的汇合区,主要是在其发育发育的初始阶段(弯曲前)。连接湖泊和河流的渠道是幼虫的主要扩散途径,尤其是处于发育后期(弯曲/弯曲后)的幼体,通向湿地栖息地内部,例如湖泊和大型漂浮床垫。植被。该地区不同的湿地生境提供了极为重要的生态系统服务,在招募具有商业价值的鱼种方面发挥了关键作用,因此需要进行适当的保护和管理,以确保渔业和自然种群的连续性。主要在其个体发育的初始阶段(预屈曲)。连接湖泊和河流的渠道是幼虫的主要扩散途径,尤其是处于发育后期(弯曲/弯曲后)的幼体,通向湿地栖息地内部,例如湖泊和大型漂浮床垫。植被。该地区不同的湿地栖息地提供了极为重要的生态系统服务,在招募具有商业价值的鱼种方面发挥了关键作用,因此需要进行适当的保护和管理,以确保渔业和自然种群的连续性。主要在其个体发育的初始阶段(预屈曲)。连接湖泊和河流的渠道是幼虫的主要扩散途径,尤其是处于发育后期(弯曲/弯曲后)的幼体,通向湿地栖息地内部,例如湖泊和大型漂浮床垫。植被。该地区不同的湿地生境提供了极为重要的生态系统服务,在招募具有商业价值的鱼种方面发挥了关键作用,因此需要进行适当的保护和管理,以确保渔业和自然种群的连续性。朝向湿地生境的内部,例如湖泊和漂浮的植被大床垫。该地区不同的湿地生境提供了极为重要的生态系统服务,在招募具有商业价值的鱼种方面发挥了关键作用,因此需要进行适当的保护和管理,以确保渔业和自然种群的连续性。朝向湿地生境的内部,例如湖泊和漂浮的植被大床垫。该地区不同的湿地生境提供了极为重要的生态系统服务,在招募具有商业价值的鱼种方面发挥了关键作用,因此需要进行适当的保护和管理,以确保渔业和自然种群的连续性。
更新日期:2020-04-19
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