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Genetic Conservation Management of Marine Resources and Ecosystems of Patagonian Fjords
Frontiers in Marine Science ( IF 2.8 ) Pub Date : 2021-01-26 , DOI: 10.3389/fmars.2021.612195
Anna Maria Addamo , Serena Zaccara , Günter Försterra , Juan Höfer , Ricardo García-Jiménez , Giuseppe Crosa , Annie Machordom

The Chilean fjord region includes many remote and poorly known areas where management plans for the marine living resources and conservation strategies are urgently needed. Few data are available about the spatial distribution of its marine invertebrate fauna, prevalently influenced by complex interactions between biotic and abiotic factors, animal behavior and human activities. Patagonian fjords are a hotspot for finfish aquaculture, elevating Chile to the world’s second producer of farmed salmon, after Norway, a condition that emphasizes the necessity to develop strategies for a sustainable aquaculture management. The present study focuses on the emblematic cold-water coral Desmophyllum dianthus, dwelling the Comau Fjord from shallow to deep waters, with the aim to illustrate population structure, demography and adaptation of the species and its potential use for the development of a sustainable conservation and management plan for human activities. The analyses of microsatellite loci of D. dianthus individuals from four sampling localities along horizontal and vertical gradients of Comau Fjord, lead to identify them as a panmictic population. The results also contributed to consider a careful examination of the synchrony between the temporal and spatial variations of environmental factors and the biological cycle of the species as key role player in the inference of autecology of the species. The discussion stresses the importance of molecular analyses as extremely helpful tools for studies focusing on remote areas and non-model organisms, where logistic difficulties and limited scientific knowledge hamper a better management and conservation of marine resources, and in particular the relevance of multidisciplinary approaches to reduce the extensive knowledge gap on the remote fjord ecosystems of Patagonia. This study also highlights the importance of oceanographic information in the entire process of the analyses and interpretation of genetic results.



中文翻译:

巴塔哥尼亚峡湾海洋资源和生态系统的遗传保护管理

智利峡湾地区包括许多偏远和鲜为人知的地区,这些地区急需海洋生物资源管理计划和养护策略。关于其海洋无脊椎动物区系的空间分布的数据很少,主要受生物和非生物因素,动物行为和人类活动之间复杂相互作用的影响。巴塔哥尼亚峡湾是鱼类养殖的热点,使智利成为仅次于挪威的世界第二大养殖鲑鱼生产国,这一条件强调了制定可持续水产养殖管理战略的必要性。本研究的重点是象征性的冷水珊瑚石竹,从浅水区到深水区都居住着科马峡湾,目的是说明该物种的种群结构,人口统计学和适应性及其在制定可持续的人类活动保护和管理计划中的潜在用途。卫星微卫星位点的分析。石竹来自四个采样地点的沿科莫峡湾的水平和垂直梯度的个体,将其识别为恐慌性种群。结果还有助于考虑仔细检查环境因素的时空变化与物种生物周期之间的同步性,这是推断物种自律学的关键角色。讨论强调了分子分析作为重点研究偏远地区和非模式生物的极为有用的工具的重要性,这些领域的后勤困难和有限的科学知识阻碍了对海洋资源的更好管理和养护,尤其是多学科方法对海洋资源的相关性。减少巴塔哥尼亚偏远峡湾生态系统的广泛知识差距。

更新日期:2021-02-23
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