气候变化领域集成服务门户(CCPortal): Epibenthic megafauna characteristics in the Emerald Basin during CCGS Hudson cruise HUD-2011-010

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.903676
	Epibenthic megafauna characteristics in the Emerald Basin during CCGS Hudson cruise HUD-2011-010
	Hawkes; Nickolas; Korabik; Michelle; Beazley; Lindsay; Rapp; Hans Tore; Xavier; Joana R; Kenchington; Ellen L
发布日期	2019-07-08
数据集类型	dataset
英文简介	Emerald Basin on the Scotian Shelf off Nova Scotia, Canada, is home to a globally unique population of the glass sponge Vazella pourtalesi. Through the analysis of both in situ photographs and trawl catch data from annual multispecies bottom-trawl surveys, we examined community composition, species density, and abundance of epibenthos and fish associated with V. pourtalesi compared to locations without this sponge. Using generalized linear models and analysis of similarities, the importance of V. pourtalesi in enhancing species density and abundance of the associated epibenthic community was assessed against that of the hard substrate on which it settles. Our results indicated that the megafaunal assemblage associated with V. pourtalesi was significantly different in composition and higher in species density and abundance compared to locations without V. pourtalesi. Analysis of similarity of trawl catch data indicated that fish communities associated with the sponge grounds are significantly different from those without V. pourtalesi, although no species were found exclusively on the sponge grounds. Our study provides further evidence of the role played by sponge grounds in shaping community structure and biodiversity of associated deep-sea epibenthic and fish communities. The mechanism for biodiversity enhancement within the sponge grounds formed by V. pourtalesi is likely the combined effect of both the sponge itself and its attachment substrate, which together comprise the habitat of the sponge grounds. We also discuss the role of habitat provision between the mixed-species tetractinellid sponges of the Flemish Cap and the monospecific glass sponge grounds of Emerald Basin.
空间范围	Median Latitude: 44.084034 * Median Longitude: -62.862219 * South-bound Latitude: 43.862813 * West-bound Longitude: -63.101230 * North-bound Latitude: 44.314703 * East-bound Longitude: -62.600000
时间范围	2011-06-08T13:46:00 - 2011-06-09T21:28:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215141
推荐引用方式 GB/T 7714	Hawkes,Nickolas,Korabik,et al. Epibenthic megafauna characteristics in the Emerald Basin during CCGS Hudson cruise HUD-2011-010.2019-07-08.https://doi.org/10.1594/PANGAEA.903676.