加利福尼亚洋流南部底层鱼类幼虫优先分布的预测模型

IF 0.8 4区 生物学 Q4 MARINE & FRESHWATER BIOLOGY Scientia Marina Pub Date : 2020-09-04 DOI:10.3989/scimar.04996.11a
M. T. Peiro-Alcantar, R. Funes-Rodríguez, R. Durazo, R. Martínez-Rincón, R. González-Armas, S. Hernández Trujillo
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引用次数: 2

摘要

栖息地特征提供了物种分布的预测信息,有助于评估栖息地质量和种群稳定性。通过广义加性模型分析了六种常见和丰富的底层物种的幼虫丰度及其与环境的关系,以确定它们在1997-2000年和2006-2010年这两个数据收集时期对加利福尼亚洋流南部(25-31°N)环境变量的优先分布和预测响应。从本质上讲,控制分布模式的主要相关变量与水柱的常见特征和海洋学特征有关(50米深的温度和盐度、动态高度和水柱分层程度);然而,变量集及其范围通常是特定于物种的。北方分布的物种,Sebastes sp.和Citharichtys stomaeus,主要记录在新出现的、相对未经批准的水域,其特征是浅混合层和低温。低动态高度值是Merluccius productus幼虫分布的最重要预测因子。黄刺鱼和黄刺鱼分布广泛,主要在秋季分布在未分层或分层的水域和浅混合层。特别是C.Xanthostigma和S.Lucioceps与高动态高度值有关,可能受到流向极地的海岸流的影响,逆流证明了这一点。
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Predictive models of the preferential distribution of demersal fish larvae in the southern part of the California Current
Habitat characterization provides predictive information about the distribution of species and is useful for as­sessing habitat quality and population stability. Larval abundance of six frequent and abundant demersal species and the relationship of each with the environment were analysed through generalized additive models to determine their preferential distribution and predictive response to the environmental variables in the southern part of the California Current (25-31°N) between two periods of data collection: 1997-2000 and 2006-2010. Essentially, the main associated variables governing the distribution patterns were related to common and oceanographic characteristics of the water column (temperature and salinity at 50 m depth, dynamic height and degree of water column stratification); however, the set of variables and their ranges are usually species-specific. Species of northern distribution, Sebastes sp. and Citharichtys stigmaeus, were recorded mainly in newly emerged, relatively unstratified waters characterized by a shallow mixed layer and low temperatures. Low dynamic height values were the most significant predictor of larval distribution for Merluccius productus. Citharichthys xanthostigma and Symphurus atricaudus were widespread, distributed across the study area mainly in autumn in unstratified or stratified waters and at a shallow mixed layer. Particularly C. Xanthostigma and S. Lucioceps were related to high dynamic height val­ues, likely influenced by a coastal flow towards the pole, as evidenced by counter-currents.
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来源期刊
Scientia Marina
Scientia Marina 生物-海洋与淡水生物学
CiteScore
2.10
自引率
0.00%
发文量
21
审稿时长
6-12 weeks
期刊介绍: Scientia Marina is the successor to Investigación Pesquera, a journal of marine sciences published since 1955 by the Institut de Ciències del Mar de Barcelona (CSIC). Scientia Marina is included in the Science Citation Index since 1998 and publishes original papers, reviews and comments concerning research in the following fields: Marine Biology and Ecology, Fisheries and Fisheries Ecology, Systematics, Faunistics and Marine Biogeography, Physical Oceanography, Chemical Oceanography, and Marine Geology. Emphasis is placed on articles of an interdisciplinary nature and of general interest.
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