Expansion of aquaculture parks and the increasing risk of non‐native species invasions in Brazil
Expansion of aquaculture parks and the increasing risk of non‐native species invasions in Brazil
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巴西水产养殖园区的扩张和非本地物种入侵风险的增加
DOI：
10.1111/raq.12150
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发表时间：
2018
影响因子：
10.4
通讯作者：
D. P. Lima
中科院分区：
文献类型：
--
作者：
L. B. Lima;F. J. M. Oliveira;H. Giacomini;D. P. Lima
水虱是巴西和世界各地引进非本地物种的主要媒介。尽管非本地物种可能造成严重和不可逆转的生态影响，但在许多情况下，它们仍然是水产养殖场的首选，巴西政府最近推动的水产养殖扩张计划就是一个典型例子。在这项研究中，我们提出了一个调查的水产养殖公园将安装在整个巴西领土上，重点是物种的本地或非本地的地位，并讨论了水生生物多样性保护的影响。139个水产养殖园区（AP），共1556个场地，占地941.38公顷，已被招标。其中，122项行动方案将包含至少一种非本地物种，68项行动方案将完全基于其种植。一个可以预见的后果是，周围水生生态系统的繁殖压力增加，增加了非本地物种定居或持续存在的风险，这可能会加剧四个主要河流流域和沿着巴西海岸已经发生的环境影响。这些影响加在一起将对水产养殖产生更直接的影响-例如营养物和有机物的投入增加-包括生境和水质的变化、疾病的传播、生物同质化、杂交和远系繁殖造成的种群生存能力丧失以及本地物种的灭绝。
Aquaculture is the main vector for introduction of non-native species in Brazil and around the world. Despite the potentially serious and irreversible ecological impacts caused by non-native species, they continue to be in many cases the preferred option in aquaculture farms, of which the recent plans of aquaculture expansion promoted by the Brazilian Government are an emblematic example. In this study, we present a survey of publicly available information on aquaculture parks to be installed across the Brazilian territory, with emphasis on species status as native or non-native, and discuss the implications for the conservation of aquatic biodiversity. One hundred and thirty-nine aquaculture parks (APs), with a total of 1556 sites covering 941.38 hectares, have been called for bids. Among these, 122 APs will contain at least one non-native species, and 68 APs will be based exclusively on their cultivation. A predictable consequence is the enhancement of propagule pressure in surrounding aquatic ecosystems, increasing the risk of non-native species establishment or persistence, which will likely intensify the environmental impacts already in course in four major river basins and along the Brazilian coast. These impacts will add up to more direct effects of aquaculture farming – for example elevated input of nutrients and organic matter – and include changes in habitat and water quality, spread of diseases, biotic homogenization, loss of population viability resulting from hybridization and outbreeding depression, and the local extirpation of native species.
影响因子：
4.8
作者：
Britton, John Robert;Gozlan, Rodolphe Elie
通讯作者：
Gozlan, Rodolphe Elie