阿尔博兰海北部和维拉湾拖网渔场上的十足类甲壳类动物群落

IF 0.8 4区 生物学 Q4 MARINE & FRESHWATER BIOLOGY Scientia Marina Pub Date : 2022-09-21 DOI:10.3989/scimar.05265.039
Cristina Ciércoles, Cristina García-Ruíz, P. Abelló, M. Hidalgo, P. Torres, María González, Á. Mateo-Ramírez, J. Rueda
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引用次数: 1

摘要

本研究分析了MEDITS调查每年(2012年至2018年)在阿尔博兰海北部(包括阿尔博兰岛)和维拉湾采集的环海和半深海软底(30至800米)的样本,以确定十足目甲壳类动物组合的组成、结构和分布。共鉴定出94种十足目甲壳类动物。非度量多维尺度显示,深度是区分四个主要十足目组合的主要因素:内陆架(30-100m深度)、外陆架(101-200 m)、上坡(201-500 m)和中坡(501-800 m)。PERMANOVA分析进一步揭示了研究区域三个既定地理区域(阿尔博兰海北部、维拉湾和阿尔博兰岛)之间与深度相关的显著差异。使用广义加性模型分析来评估水深、地理和环境对每个组合的生态指数的影响。结果表明,深度和地理效应是所有情况下的主要驱动因素。检测到物种丰富度、Shannon Wiener多样性和Pielou均匀度指数随深度的减少和增加。这项研究表明,深度和地理效应对研究区十足目物种分布的首要影响,与地中海其他地区的研究结果一致。
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Decapod crustacean assemblages on trawlable grounds in the northern Alboran Sea and Gulf of Vera
This study analyses the samples collected annually (2012 to 2018) on circalittoral and bathyal soft bottoms (30 to 800 m) by the MEDITS surveys in the northern Alboran Sea (including Alboran Island) and the Gulf of Vera to determine the composition, structure and distribution of decapod crustacean assemblages. A total of 94 decapod crustacean species were identified. Non-metric multidimensional scaling showed depth to be the main factor for distinguishing four main decapod assemblages: the inner shelf (30-100 m depth), outer shelf (101-200 m), upper slope (201-500 m) and middle slope (501-800 m). PERMANOVA analyses revealed further significant depth-related differences between three established geographical sectors of the study area (northern Alboran Sea, Gulf of Vera and Alboran Island). Generalized additive model analyses were used to assess the bathymetrical, geographical and environmental effects on the ecological indices of each assemblage. Results showed that depth and the geographical effect were the main drivers in all cases. Decreases in abundance and increases in species richness, Shannon-Wiener diversity and Pielou’s evenness indices with depth were detected. This study shows the primacy of depth and geographical effect on the distribution of decapod species in the study area, in alignment with findings from other parts of the Mediterranean Sea.
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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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