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A new species of poecilosclerid sponge (Porifera) from bathyal methane seeps in the Gulf ofMexico
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|Title:||A new species of poecilosclerid sponge (Porifera) from bathyal methane seeps in the Gulf ofMexico.||
Young, Craig M.
Harbor Branch Oceanographic Institute
|Type of Resource:||text|
|Publisher:||Marine Biological Association of the United Kingdom|
|Place of Publication:||Plymouth, UK|
|Identifier:||FA00007236 (IID), 10.1017/S0025315400044787 (doi)|
A new species of poecilosclerid sponge from methane seeps on the Louisiana Slope, Gulf of Mexico, USA is described. This thickly encrusting sponge grows around vestimentiferan tubes and has a very patchy distribution. The skeletal structure and the spicule set match those characterizing the genus Ectyomyxilla. The new species, Ectyomyxilla methanophila sp. nov., is distinguished from the remaining species in the genus by the structure of its ectosomal skeleton, where small acanthostyles are never present, and by its choanosomal skeleton, which is barely reticulate and has echinated main tracts. The small size of the choanocyte chambers suggests occurrence of nutritional benefits derived from association with chemoautotrophic symbiotic bacteria. However, the presence of oscules, ostioles, aquiferous canals and choanocyte chambers indicates that this sponge also relies partly on filtration for its nutrition. This is the first record of the genus Ectyomyxilla in the northern hemisphere, and the first non-carnivorous demosponge known to exploit methane-rich marine environments.
Florida Atlantic University. Harbor Branch Oceanographic Institute contribution 1191
This manuscript is an author version with the final publication available and may be cited as: Maldonado, M., & Young, C. M. (1998). A new species of poecilosclerid sponge (Porifera) from bathyal methane seeps in the Gulf of Mexico. Journal of the Marine Biological Association of the United Kingdom 78(3), 795-806. http://dx.doi.org/10.1017/S0025315400044787
Mexico, Gulf of
|Persistent Link to This Record:||http://purl.flvc.org/fau/fd/FA00007236|