MEPS 452:89-107 (2012)  -  doi:10.3354/meps09646

A biological survey method applied to seafloor massive sulphides (SMS) with contagiously distributed hydrothermal-vent fauna

P. C. Collins1,*, R. Kennedy1, C. L. Van Dover2

1Zoology Department, School of Natural Sciences, National University of Ireland Galway, Ireland
2Division of Marine Science and Conservation, Nicholas School of the Environment, Duke University, Beaufort North Carolina 28516, USA

ABSTRACT: Strategies for mitigation of seafloor massive sulphide (SMS) extraction in the deep sea include establishment of suitable reference sites that allow for studies of natural environmental variability and that can serve as sources of larvae for re-colonisation of extracted hydrothermal fields. In this study, we characterize deep-sea vent communities in Manus Basin (Bismarck Sea, Papua New Guinea) and use macrofaunal data sets from a proposed reference site (South Su) and a proposed mine site (Solwara 1) to test the hypothesis that there was no difference in macrofaunal community structure between the sites. We used dispersion weighting to adjust taxa-abundance matrices to down-weight the contribution of contagious distributions of numerically abundant taxa. Faunal assemblages of 3 habitat types defined by biogenic taxa (2 provannid snails, Alviniconcha spp. and Ifremeria nautilei; and a sessile barnacle, Eochionelasmus ohtai) were distinct from one another and from the vent peripheral assemblage, but were not differentiable from mound-to-mound within a site or between sites. Mussel and tubeworm populations at South Su but not at Solwara 1 enhance the taxonomic and habitat diversity of the proposed reference site.


KEY WORDS: Deep-sea mining · Dispersion weighting · Manus Basin · Marine reserves · Solwara 1


Full text in pdf format
Supplementary material 
Cite this article as: Collins PC, Kennedy R, Van Dover CL (2012) A biological survey method applied to seafloor massive sulphides (SMS) with contagiously distributed hydrothermal-vent fauna. Mar Ecol Prog Ser 452:89-107

Export citation: Endnote - Reference Manager
Mail this link - Contents Mailing Lists - RSS
- -