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globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0119393
论文题名:	Persistence of Pristine Deep-Sea Coral Gardens in the Mediterranean Sea (SW Sardinia)
作者:	Marzia Bo; Giorgio Bavestrello; Michela Angiolillo; Lucio Calcagnile; Simonepietro Canese; Rita Cannas; Alessandro Cau; Marisa D’Elia; Filippo D’Oriano; Maria Cristina Follesa; Gianluca Quarta; Angelo Cau
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2015
发表日期:	2015-3-19
卷:	10, 期:3
语种:	英语
英文关键词:	Corals ; Radioactive carbon dating ; Mediterranean Sea ; Ecosystems ; Marine ecosystems ; Biodiversity ; Habitats ; Conservation science
英文摘要:	Leiopathes glaberrima is a tall arborescent black coral species structuring important facies of the deep-sea rocky bottoms of the Mediterranean Sea that are severely stifled by fishing activities. At present, however, no morphological in vivo description, ecological characterization, age dating and evaluation of the possible conservation actions have ever been made for any population of this species in the basin. A dense coral population was reported during two Remotely Operated Vehicle (ROV) surveys conducted on a rocky bank off the SW coasts of Sardinia (Western Mediterranean Sea). L. glaberrima forms up to 2 m-tall colonies with a maximal observed basal diameter of nearly 7 cm. The radiocarbon dating carried out on a colony from this site with a 4 cm basal diameter revealed an approximately age of 2000 years. Considering the size-frequency distribution of the colonies in the area it is possible to hypothesize the existence of other millennial specimens occupying a supposedly very stable ecosystem. The persistence of this ecosystem is likely guaranteed by the heterogeneous rocky substrate hosting the black coral population that represents a physical barrier against the mechanical impacts acted on the surrounding muddy areas, heavily exploited as trawling fishing grounds. This favorable condition, together with the existence of a nursery area for catsharks within the coral ramifications and the occurrence of a meadow of the now rare soft bottom alcyonacean Isidella elongata in small surviving muddy enclaves, indicates that this ecosystem have to be considered a pristine Mediterranean deep-sea coral sanctuary that would deserve special protection.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0119393&type=printable
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资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/22027
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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journal.pone.0119393.PDF（3351KB）	期刊论文	作者接受稿	开放获取	CC BY-NC-SA	View Download

作者单位:

Università degli Studi di Genova, Dipartimento di Scienze della Terra, dell'Ambiente e della Vita, Genova, Italy;Università degli Studi di Genova, Dipartimento di Scienze della Terra, dell'Ambiente e della Vita, Genova, Italy;Istituto Superiore per la Protezione e la Ricerca Ambientale, Roma, Italy;Università del Salento, Centro di Datazione e Diagnostica, Dipartimento di Ingegneria dell’Innovazione, Lecce, Italy;Istituto Superiore per la Protezione e la Ricerca Ambientale, Roma, Italy;Università di Cagliari, Dipartimento di Scienze della Vita e dell'Ambiente, Cagliari, Italy;Università di Cagliari, Dipartimento di Scienze della Vita e dell'Ambiente, Cagliari, Italy;Università del Salento, Centro di Datazione e Diagnostica, Dipartimento di Ingegneria dell’Innovazione, Lecce, Italy;Geophi S.r.l. c/o Research Area Consiglio Nazionale delle Ricerche, Bologna, Italy;Università di Cagliari, Dipartimento di Scienze della Vita e dell'Ambiente, Cagliari, Italy;Università del Salento, Centro di Datazione e Diagnostica, Dipartimento di Ingegneria dell’Innovazione, Lecce, Italy;Università di Cagliari, Dipartimento di Scienze della Vita e dell'Ambiente, Cagliari, Italy

Recommended Citation:

Marzia Bo,Giorgio Bavestrello,Michela Angiolillo,et al. Persistence of Pristine Deep-Sea Coral Gardens in the Mediterranean Sea (SW Sardinia)[J]. PLOS ONE,2015-01-01,10(3)

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