Gazul泥火山(Cádiz湾)底栖动物栖息地的软体动物

IF 0.8 4区 生物学 Q4 MARINE & FRESHWATER BIOLOGY Scientia Marina Pub Date : 2020-09-15 DOI:10.3989/scimar.05027.17a
O. Utrilla, S. Gofas, J. Urra, P. Marina, Á. Mateo-Ramírez, N. López-González, E. González-García, C. Salas, J. Rueda
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引用次数: 7

摘要

使用不同的采样方法研究了加的斯湾北部加祖尔泥火山及其邻近地区的软体动物。这座泥火山拥有脆弱的深海栖息地和潜在的高度生物多样性。共鉴定出232个物种,其中86个是加的斯湾西班牙边缘的新记录,3个是西班牙水域的新记录和2个是科学上的新记录。观察到的高物种丰富度可能与不同采样方法的结合、对甲烷虫群落的研究、高生境异质性以及加祖尔泥火山在不同生物地理区域之间的地理位置有关。最具代表性的物种是菲律宾斑蝶、结节Asperarca nodulosa、Leptochton sp.、沟纹Astarte和安哥拉Limopsis angusta。甲烷虫共患病率较低,包含典型的北纬度物种、表明过去渗漏的物种、来自大陆架的物种和仅限于特定宿主的物种。在Gazul的不同地区(泥火山建筑、侵蚀性减压和邻近底部)发现的紫杉共病在多变量分析中通常显示出显著差异。此外,与环境复杂性和食物可获得性相关的环境参数与软体动物群的联系最高。
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Molluscs from benthic habitats of the Gazul mud volcano (Gulf of Cádiz)
Molluscs from the Gazul mud volcano and its adjacent areas in the northern Gulf of Cadiz were studied using differ­ent sampling methods. This mud volcano has vulnerable deep-sea habitats and a potential high biodiversity. A total of 232 species were identified from the taxocoenosis and thanatocoenosis, of which 86 are new records for the Spanish margin of the Gulf of Cadiz, three of them are new records for Spanish waters and two species are new to science. The high species richness observed could be related to the combination of different sampling methods, the study of the thanatocoenosis, the high habitat heterogeneity and the geographical location of the Gazul mud volcano between different biogeographical regions. The best-represented species were Bathyarca philippiana, Asperarca nodulosa, Leptochiton sp., Astarte sulcata and Limopsis angusta. The thanatocoenosis harboured, with low frequency, species that are typical of northern latitudes, species indicating past seepage, species from the shelf and species restricted to particular hosts. The taxocoenosis found in different areas of Gazul (the mud volcano edifice, erosive de­pression and adjacent bottoms) generally displayed significant differences in multivariate analyses. Furthermore, the environmental parameters related to environmental complexity and food availability displayed the highest linkage with the molluscan fauna.
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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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