Biodiversity of Spongosorites coralliophaga (Stephens, 1915) on coral rubble at two contrasting cold-water coral reef settings
Biodiversity of Spongosorites coralliophaga (Stephens, 1915) on coral rubble at two contrasting cold-water coral reef settings
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两种对比鲜明的冷水珊瑚礁环境中珊瑚碎石上海绵体珊瑚噬菌体的生物多样性（Stephens，1915）
DOI：
10.1007/s00338-015-1355-2
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发表时间：
2016
期刊：
影响因子：
3.5
通讯作者：
U. Witte
中科院分区：
文献类型：
--
作者：
G. Kazanidis;L. Henry;J. M. Roberts;J. M. Roberts;J. M. Roberts;U. Witte
在大西洋东北部的冷水珊瑚礁（CWRs）中有着多样的海绵群落。深海海绵生态学的知识是有限的，这使我们与海绵在CWR生态系统中发挥的生态作用的一个支离破碎的理解。我们提出了第一个研究的动物群的生物多样性与大规模的demosponge海绵Spongosorites coralliophaga（斯蒂芬斯，1915年），通常殖民化的CWR的珊瑚碎片领域。我们的研究集中在固着动物栖息在海绵混合珊瑚碎石在两个对比的设置在大西洋东北部：浅近岸（120-190米水深）Mingulay礁复合体（MRC）和深海（500-1200米）Logachev丘（LM）珊瑚省。MRC的优势种为石珊瑚Lophelia pertusa，LM的优势种为L. pertusa和Madelena oculata。九海绵珊瑚碎石协会收集MRC和LM四。海绵和珊瑚碎石微生境的丰度，物种丰富度，多样性，均匀度，干生物量和固着动物的组成进行了测量。两个区域之间的群落组成的差异主要是对动物随深度变化的反应。在每个区域内，海绵和珊瑚碎石之间的动物组成也不同。底栖动物构成了一个小组成部分的海绵相关动物在MRC，但有较高的贡献LM。海绵和珊瑚碎石固着动物区系在这两个地区主要由刺胞动物和软体动物，类似于一些以前的研究。海绵的外表面在MRC殖民由物种丰富的社区与高丰度和生物量表明，S。珊瑚虫在MRC充当各种生物的定居表面，但在LM则不是这种情况。这种差异在S的作用。珊瑚虫作为一种生物结构，可能与动物组成随深度、底流速度和底栖生物所获食物的数量/质量的不同有关。
Cold-water coral reefs (CWRs) in the northeast Atlantic harbor diverse sponge communities. Knowledge of deep-sea sponge ecology is limited and this leaves us with a fragmented understanding of the ecological roles that sponges play in CWR ecosystems. We present the first study of faunal biodiversity associated with the massive demosponge Spongosorites coralliophaga (Stephens, 1915) that typically colonizes coral debris fields of CWRs. Our study focused on the sessile fauna inhabiting sponges mixed with coral rubble at two contrasting settings in the northeast Atlantic: the shallow inshore (120–190 m water depth) Mingulay Reef Complex (MRC) and the deep offshore (500–1200 m) Logachev Mound (LM) coral province. MRC is dominated by the scleractinian Lophelia pertusa, while LM is dominated by L. pertusa and Madrepora oculata. Nine sponge–coral rubble associations were collected from MRC and four from LM. Measurements of abundance, species richness, diversity, evenness, dry biomass, and composition of sessile fauna on sponge and coral rubble microhabitats were undertaken. Differences in community composition between the two regions were mainly a response to changes in fauna with depth. Fauna composition was also different between sponge and coral rubble within each region. Infauna constituted a minor component of the sponge-associated fauna in MRC but had a higher contribution in LM. Sponge and coral rubble sessile fauna in both regions was mainly composed of cnidarians and molluscs, similarly to some previous studies. Sponges’ outer surfaces at MRC were colonized by a species-rich community with high abundance and biomass suggesting that S. coralliophaga at MRC acts as a settlement surface for various organisms but such a role is not the case at LM. This difference in the role of S. coralliophaga as a biological structure is probably related to differences in fauna composition with depth, bottom current speed, and the quantity/quality of food supplied to the benthos.
DOI：
10.1111/j.1439-0485.2010.00359.x
发表时间：
2010-03-01
影响因子：
1.1
作者：
Buhl-Mortensen, Lene;Vanreusel, Ann;Raes, Maarten
通讯作者：
Raes, Maarten