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Polychaeta source details

Ravara, Ascensão; Marçal, Ana R.; Wiklund, Helena; Hilário, Ana. (2015). First account on the diversity of Ophryotrocha (Annelida, Dorvilleidae) from a mammal-fall in the deep-Atlantic Ocean with the description of three new species. Systematics and Biodiversity. [vol unassigned] 1-16.
197990
10.1080/14772000.2015.1047428 [view]
urn:lsid:zoobank.org:pub:A12699DA-E580-4782-941A-48D7B31E4DAE [view]
Ravara, Ascensão; Marçal, Ana R.; Wiklund, Helena; Hilário, Ana
2015
First account on the diversity of Ophryotrocha (Annelida, Dorvilleidae) from a mammal-fall in the deep-Atlantic Ocean with the description of three new species
Systematics and Biodiversity
[vol unassigned] 1-16
Publication
World Polychaeta Database (WPolyDb). Online Zoobank date 18 June 2015
Annelids of the genus Ophryotrocha are globally distributed in a wide variety of organically enriched habitats. Although mostly known from shallow water, the expansion of deep-sea research revealed several new Ophryotrocha species mainly associated with organic-falls, in particular with cetacean carcasses, or whale-falls. Despite the great deal of interest that fauna associated with whale-falls have attracted, very little is known about this fauna in the deep-Atlantic Ocean. Hereby we analyse, for the first time, the Ophryotrocha assemblage associated with a mammal-fall in this region of the world’s ocean. Specimens were collected from the bones of degrading cow carcasses deployed in the Setubal Canyon at approximately 1000 m depth. Using morphological characters and phylogenetic analyses based on the nuclear gene H3 performed on 31 Ophryotrocha species, we report the presence of five different species, we describe three new species and extend the distribution of O. scutella. Ophryotrocha scutella was previously known from a shallow-water whale-fall and organically enriched sediments beneath a fish farm off Scandinavia and is the first species to be reported from organic-falls in both shallow and deep waters. The presence of five congeners emphasize the importance of the genus Ophryotrocha in the degradation of organic matter in the deep-sea. Our results substantially increase the number of deep Atlantic species in the genus Ophryotrocha and highlight the remarkable unknown diversity and biogeographic patterns hidden behind unstudied deep-sea habitats.
Eastern Atlantic
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Date
action
by
2015-06-23 22:28:43Z
created
2015-06-25 00:11:14Z
changed

Holotype NHMUK NHM2014.43, geounit Portuguese Atlantic Coast, identified as Ophryotrocha lusa Ravara, Marçal, Wiklund & Hilário, 2015
Holotype NHMUK NHM2014.54, geounit Portuguese part of the North Atlantic Ocean, identified as Ophryotrocha mammillata Ravara, Marçal, Wiklund & Hilário, 2015
Holotype NHMUK NHM2014.62, geounit Portuguese Atlantic Coast, identified as Ophryotrocha sadina Ravara, Marçal, Wiklund & Hilário, 2015
 Etymology

Authors: "Ophryotrocha lusa is named in allusion to 'LUSO', the first Portuguese deep-water ROV used on the ... [details]

 Etymology

Authors: "Ophryotrocha mammillata sp. nov. is named after its mammillate glands on the posterior chaetigers, from ... [details]

 Etymology

Authors: "Ophryotrocha sadina sp. nov. is named after its sampling site off Setubal. The name 'Sadino' is the ... [details]

 Spelling

Misspelling. See Ophryotrocha scutellus for explanation. [details]

 Spelling

The 'scutellus' spelling modification from 'scutella' cannot have been for a mistaken need for gender agreement as ... [details]

 Type locality

Setubal canyon, off Portugal, 38.2809, -9.1122, 1000 m, on experimental deployment of cow bones [details]

 Type locality

Setubal canyon, off Portugal, 38.2809, -9.1122, 1000 m, on experimental deployment of cow bones [details]

 Type locality

Setubal canyon, off Portugal, 38.2809, -9.1122, 1000 m, on experimental deployment of cow bones [details]