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040 |aCaOODSP|beng|erda|cCaOODSP
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0861 |aFs97-6/3559E-PDF
1001 |aOdenthal, Brighid, |eauthor.
24510|aSponges from the 2010-2014, and 2017 Paamiut, and 2019 Helga Maria multispecies trawl surveys, eastern Arctic and subarctic : |bclass Demospongiae, subclass Heteroscleromorpha, order Poecilosclerida, family Iotrochotidae / |cby Brighid Odenthal, Pilar Rios, Francisco Javier Murillo, Wojciech Walkusz, Javier Cristobo, Ellen Kenchington.
264 1|aDartmouth, N.S., Canada : |bOcean and Ecosystem Sciences Division, Maritimes Region, Fisheries and Oceans Canada, Bedford Institute of Oceanography, |c2023.
264 4|c©2023
300 |a1 online resource (v, 44 pages) : |bcolour illustrations, colour maps.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aCanadian technical report of fisheries and aquatic sciences, |x1488-5379 ; |v3559
504 |aIncludes bibliographical references (pages 40-42).
5203 |a"Sponges (phylum Porifera) play an important role in habitat creation and nutrient cycling. However, despite these key functional roles, sponge communities in Arctic marine environments are still poorly known. Sponges were collected between 2010-2014, in 2017 and in 2019 during annual multispecies trawl surveys conducted by Fisheries and Oceans Canada in Baffin Bay, Davis Strait and portions of Hudson Strait. They were taxonomically examined under a microscope. Approximately 2800 sponge specimens were identified, comprising ~100 known sponge taxa. Here, results from the analysis of the family Iotrochotidae Dendy, 1922 are presented. This family currently has 6 genera and 35 valid species and is characterized by the possession of birotula microscleres in its skeleton. Thirty specimens collected from 442 to 1319 m depth were examined. Five taxa have been identified, all of them belonging to the Genus Iotroata (Laubenfels, 1936). Most of our specimens are Iotroata affinis (Lundbeck, 1905). The other described species include Iotroata polydentata (Lundbeck, 1905), as well as Iotroata sp.1, Iotroata sp.2, and Iotroata sp.3., which are likely new species. For each species a physical description, a discussion of their distinguishing characteristics, the dimensions and descriptions of their spicules, and a taxonomic discussion is included"--Abstract, page iv.
546 |aIncludes abstracts in English and French.
650 0|aPoecilosclerida|zBaffin Bay (North Atlantic Ocean)
650 0|aPoecilosclerida|zDavis Strait.
650 0|aPoecilosclerida|zHudson Strait (Québec and Nunavut)
650 0|aZoological surveys|zBaffin Bay (North Atlantic Ocean)
650 0|aZoological surveys|zDavis Strait.
650 0|aZoological surveys|zHudson Strait (Québec and Nunavut)
650 6|aPœcilosclerida|zBaffin, Baie de.
650 6|aPœcilosclerida|zDavis, Détroit de.
650 6|aPœcilosclerida|zHudson, Détroit d' (Québec et Nunavut)
650 6|aInventaires fauniques|zBaffin, Baie de.
650 6|aInventaires fauniques|zDavis, Détroit de.
650 6|aInventaires fauniques|zHudson, Détroit d' (Québec et Nunavut)
7101 |aCanada. |bDepartment of Fisheries and Oceans, |eissuing body.
7102 |aBedford Institute of Oceanography, |eissuing body.
830#0|aCanadian technical report of fisheries and aquatic sciences ;|v3559.|w(CaOODSP)9.504449
85640|qPDF|s2.50 MB|uhttps://publications.gc.ca/collections/collection_2023/mpo-dfo/Fs97-6-3559-eng.pdf