Analysis of the potential geographic range of the Pacific oyster Crassostrea gigas (Thunberg, 1793) based on surface seawater temperature satellite data and climate charts: the coast of South America as a study case
Analysis of the potential geographic range of the Pacific oyster Crassostrea gigas (Thunberg, 1793) based on surface seawater temperature satellite data and climate charts: the coast of South America as a study case
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DOI：
10.1007/s10530-009-9668-0
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发表时间：
2010-08-01
影响因子：
2.9
通讯作者：
Baron, Pedro J.
中科院分区：
文献类型：
--
作者：
Carrasco, Mauro F.;Baron, Pedro J.
以南美海岸为例，利用基于表层海水（SST）和大气（AT）温度记录的生态位模型预测太平洋牡蛎（Crassostrea gigas）的潜在分布范围。在其原产地，该物种在温度制度下维持自我维持的种群，最温暖的月份的平均SST范围为14.0A度至28.9A度，最寒冷的月份为-1.9A度至19.8A度。沉降也被限制为平均AT在一年中最温暖的月份在15 A度和31 A度之间变化，最寒冷的月份在-23A度和14 A度之间变化。通过对AT制度的分析，预测了该物种在南美洲分布的垂直界限是瓦尔迪维亚-奇洛埃岛（智利南纬39.8A（0）aEuro“42.0A度）和皮斯科（南纬13.4 A度，秘鲁），位于太平洋沿岸，圣朱利安港（49.3A度）（阿根廷）和加罗巴-里奥格兰德（28.0A度aEuro“32.0A度，巴西）在大西洋沿岸。通过分析SST制度预测的地理分布界限是太平洋沿岸的奇洛埃岛（智利南纬42.0 A度）和曼科拉（秘鲁南纬4.1 A度），以及大西洋沿岸的德塞阿多里亚港（阿根廷南纬47.7 A度）和巴拉那瓜（巴西南纬25.7 A度）。因此，SST制度将扩大潜在的范围在太平洋沿岸赤道相对于AT。
Ecological niche modeling based on surface seawater (SST) and atmospheric (AT) temperature records was used to predict the potential range of distribution of Crassostrea gigas, focusing on the South American coast as a study case. In its native range, the species maintains self-sustaining populations at thermal regimes with mean SST ranging from 14.0A degrees to 28.9A degrees C for the warmest month and from -1.9A degrees to 19.8A degrees C for the coldest month of the year. Settlement is also constrained to mean AT varying between 15A degrees and 31A degrees C for the warmest month and between -23A degrees and 14A degrees C for the coldest month of the year. Latitudinal limits for the species' distribution in South America predicted by the analysis of AT regimes were Valdivia-Chiloe Island (39.8A(0)aEuro"42.0A degrees S, Chile) and Pisco (13.4A degrees S, Peru) on the Pacific coast, and San Julian port (49.3A degrees S) (Argentina) and Garopaba-Rio Grande (28.0A degrees aEuro"32.0A degrees S, Brazil) on the Atlantic coast. Geographical limits of distribution predicted by analysis of SST regimes were Chiloe Island (42.0A degrees S, Chile) and Mancora (4.1A degrees S, Peru) on the Pacific coast, and Puerto Deseado ria (47.7A degrees S, Argentina) and Paranagua (25.7A degrees S, Brazil) on the Atlantic coast. Therefore, SST regimes would expand the potential range on the Pacific coast equatorward relative to AT.