Increasing Knowledge of Biodiversity on the Orphan Seamount: A New Species of Tedania (Tedaniopsis) Dendy, 1924

A new Tedania species (Porifera) was collect using remotely operated vehicles during the Canadian mission HUD2010-029 and the British RRS Discovery Cruise DY081, on the Orphan Seamount near the Orphan Knoll, northwest Atlantic, between 2999.88 and 3450.4 m depth. Orphan Knoll is an isolated, drowned...

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Main Authors: Pilar Ríos, Javier Cristobo, Emily Baker, Lindsay Beazley, Timothy Culwick, Ellen Kenchington
Format: Article
Language:English
Published: Frontiers Media S.A. 2021-02-01
Series:Frontiers in Marine Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmars.2021.612857/full
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author Pilar Ríos
Javier Cristobo
Emily Baker
Lindsay Beazley
Timothy Culwick
Ellen Kenchington
author_facet Pilar Ríos
Javier Cristobo
Emily Baker
Lindsay Beazley
Timothy Culwick
Ellen Kenchington
author_sort Pilar Ríos
collection DOAJ
description A new Tedania species (Porifera) was collect using remotely operated vehicles during the Canadian mission HUD2010-029 and the British RRS Discovery Cruise DY081, on the Orphan Seamount near the Orphan Knoll, northwest Atlantic, between 2999.88 and 3450.4 m depth. Orphan Knoll is an isolated, drowned continental fragment 550 km northeast Newfoundland in the Labrador Sea. This region is biologically rich and complex and in 2007, the regional fisheries management organization operating in the area regulated that no vessel shall engage in bottom-contact fishing activities until reviewed in 2020 with a review slated at the end of this year. Members of the genus Tedania are uncommon in the temperate northern hemisphere with only six species known previously: Tedania (Tedania) anhelans; Tedania (Tedania) pilarriosae; Tedania (Tedania) suctoria; Tedania (Tedania) urgorrii; Tedania (Tedaniopsis) gurjanovae; and Tedania (Tedaniopsis) phacellina. The particular features of the new sponge we describe are the very peculiar external morphology which is tree-like with dichotomous branching—a morphology not previously described in this subgenus; and the combination of spicules found: long styles, the typical tornotes of the subgenus and two sizes of onychaetes. Additional information is provided on other species of Tedaniopsis described from the Atlantic Ocean. Based on the characteristics reported, we propose a new species, Tedania (Tedaniopsis) rappi sp. nov. in honor of Prof. Hans Tore Rapp (1972–2020), University of Bergen, Norway, a renowned sponge taxonomist and coordinator of the Horizon 2020 SponGES project. The holotype of T. (T.) phacellinaTopsent, 1912 from the Azores, the only other northern Atlantic species in the subgenus Tedaniopsis, was reviewed for comparison.
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spelling doaj.art-29e314f5084c4c0f89a7e4caaad778182022-12-21T19:04:43ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452021-02-01810.3389/fmars.2021.612857612857Increasing Knowledge of Biodiversity on the Orphan Seamount: A New Species of Tedania (Tedaniopsis) Dendy, 1924Pilar Ríos0Javier Cristobo1Emily Baker2Lindsay Beazley3Timothy Culwick4Ellen Kenchington5Centro Oceanográfico de Gijón, Instituto Español de Oceanografía, Madrid, SpainCentro Oceanográfico de Gijón, Instituto Español de Oceanografía, Madrid, SpainDepartment of Fisheries and Oceans, Bedford Institute of Oceanography, Dartmouth, NS, CanadaDepartment of Fisheries and Oceans, Bedford Institute of Oceanography, Dartmouth, NS, CanadaSchool of Earth Science, University of Bristol, Bristol, United KingdomDepartment of Fisheries and Oceans, Bedford Institute of Oceanography, Dartmouth, NS, CanadaA new Tedania species (Porifera) was collect using remotely operated vehicles during the Canadian mission HUD2010-029 and the British RRS Discovery Cruise DY081, on the Orphan Seamount near the Orphan Knoll, northwest Atlantic, between 2999.88 and 3450.4 m depth. Orphan Knoll is an isolated, drowned continental fragment 550 km northeast Newfoundland in the Labrador Sea. This region is biologically rich and complex and in 2007, the regional fisheries management organization operating in the area regulated that no vessel shall engage in bottom-contact fishing activities until reviewed in 2020 with a review slated at the end of this year. Members of the genus Tedania are uncommon in the temperate northern hemisphere with only six species known previously: Tedania (Tedania) anhelans; Tedania (Tedania) pilarriosae; Tedania (Tedania) suctoria; Tedania (Tedania) urgorrii; Tedania (Tedaniopsis) gurjanovae; and Tedania (Tedaniopsis) phacellina. The particular features of the new sponge we describe are the very peculiar external morphology which is tree-like with dichotomous branching—a morphology not previously described in this subgenus; and the combination of spicules found: long styles, the typical tornotes of the subgenus and two sizes of onychaetes. Additional information is provided on other species of Tedaniopsis described from the Atlantic Ocean. Based on the characteristics reported, we propose a new species, Tedania (Tedaniopsis) rappi sp. nov. in honor of Prof. Hans Tore Rapp (1972–2020), University of Bergen, Norway, a renowned sponge taxonomist and coordinator of the Horizon 2020 SponGES project. The holotype of T. (T.) phacellinaTopsent, 1912 from the Azores, the only other northern Atlantic species in the subgenus Tedaniopsis, was reviewed for comparison.https://www.frontiersin.org/articles/10.3389/fmars.2021.612857/fullspongesVMEstaxonomynew speciesTedania (Tedaniopsis) rappi
spellingShingle Pilar Ríos
Javier Cristobo
Emily Baker
Lindsay Beazley
Timothy Culwick
Ellen Kenchington
Increasing Knowledge of Biodiversity on the Orphan Seamount: A New Species of Tedania (Tedaniopsis) Dendy, 1924
Frontiers in Marine Science
sponges
VMEs
taxonomy
new species
Tedania (Tedaniopsis) rappi
title Increasing Knowledge of Biodiversity on the Orphan Seamount: A New Species of Tedania (Tedaniopsis) Dendy, 1924
title_full Increasing Knowledge of Biodiversity on the Orphan Seamount: A New Species of Tedania (Tedaniopsis) Dendy, 1924
title_fullStr Increasing Knowledge of Biodiversity on the Orphan Seamount: A New Species of Tedania (Tedaniopsis) Dendy, 1924
title_full_unstemmed Increasing Knowledge of Biodiversity on the Orphan Seamount: A New Species of Tedania (Tedaniopsis) Dendy, 1924
title_short Increasing Knowledge of Biodiversity on the Orphan Seamount: A New Species of Tedania (Tedaniopsis) Dendy, 1924
title_sort increasing knowledge of biodiversity on the orphan seamount a new species of tedania tedaniopsis dendy 1924
topic sponges
VMEs
taxonomy
new species
Tedania (Tedaniopsis) rappi
url https://www.frontiersin.org/articles/10.3389/fmars.2021.612857/full
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