A comparison of food sources of nudibranch mollusks at different depths off the Kuril Islands using fatty acid trophic markers

Gastropod molluscs such as nudibranchs are important members of deep-sea benthic ecosystems. However, data on the trophic ecology and feeding specialization of these animals are limited to date. The method of fatty acid trophic markers (FATM) was applied to determine the dietary preferences of nudib...
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Autor*in:	Anatolii Komisarenko [verfasserIn] Vladimir Mordukhovich [verfasserIn] Irina Ekimova [verfasserIn] Andrey Imbs [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2021

Schlagwörter:	Nudibranchia Food webs Cold-water species Dietary fatty acids Lipids

Übergeordnetes Werk:	In: PeerJ - PeerJ Inc., 2013, 9, p e12336(2021)
Übergeordnetes Werk:	volume:9, p e12336 ; year:2021

Links:	Link aufrufen Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.7717/peerj.12336

Katalog-ID:	DOAJ068384521

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author	Anatolii Komisarenko
spellingShingle	Anatolii Komisarenko misc QH301-705.5 misc Nudibranchia misc Food webs misc Cold-water species misc Dietary fatty acids misc Lipids misc Medicine misc R misc Biology (General) A comparison of food sources of nudibranch mollusks at different depths off the Kuril Islands using fatty acid trophic markers
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topic_title	QH301-705.5 A comparison of food sources of nudibranch mollusks at different depths off the Kuril Islands using fatty acid trophic markers Nudibranchia Food webs Cold-water species Dietary fatty acids Lipids
topic	misc QH301-705.5 misc Nudibranchia misc Food webs misc Cold-water species misc Dietary fatty acids misc Lipids misc Medicine misc R misc Biology (General)
topic_unstemmed	misc QH301-705.5 misc Nudibranchia misc Food webs misc Cold-water species misc Dietary fatty acids misc Lipids misc Medicine misc R misc Biology (General)
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title	A comparison of food sources of nudibranch mollusks at different depths off the Kuril Islands using fatty acid trophic markers
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title_full	A comparison of food sources of nudibranch mollusks at different depths off the Kuril Islands using fatty acid trophic markers
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author_browse	Anatolii Komisarenko Vladimir Mordukhovich Irina Ekimova Andrey Imbs
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title_sort	comparison of food sources of nudibranch mollusks at different depths off the kuril islands using fatty acid trophic markers
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title_auth	A comparison of food sources of nudibranch mollusks at different depths off the Kuril Islands using fatty acid trophic markers
abstract	Gastropod molluscs such as nudibranchs are important members of deep-sea benthic ecosystems. However, data on the trophic ecology and feeding specialization of these animals are limited to date. The method of fatty acid trophic markers (FATM) was applied to determine the dietary preferences of nudibranchs off the Kuril Islands. Fatty acid (FA) compositions of Dendronotus sp., Tritonia tetraquetra, and Colga pacifica collected from deep waters were analyzed and compared with those of Aeolidia papillosa and Coryphella verrucosa from the offshore zone. The high level of FATM such as 22:5n-6 and C20 monounsaturated FAs indicated that Dendronotus sp. preys on sea anemones and/or anthoathecates hydroids similarly to that of shallow-water species A. papillosa and C. verrucosa. The high percentage of tetracosapolyenoic acids and the ratio 24:6n-3/24:5n-6 indicated that T. tetraquetra preys on soft corals such as Gersemia and/or Acanella at a depth of 250 m, but soft corals of the family Primnoidae may be the main item in the diet of T. tetraquetra at a depth of 500 m. The high content of Δ 7,13-22:2 and 22:6n-3 shows that C. pacifica can feed on bryozoans. In C. pacifica, 22:5n-6 may be synthesized intrinsically by the mollusks, whereas odd-chain and branched saturated FAs originate from associated bacteria.
abstractGer	Gastropod molluscs such as nudibranchs are important members of deep-sea benthic ecosystems. However, data on the trophic ecology and feeding specialization of these animals are limited to date. The method of fatty acid trophic markers (FATM) was applied to determine the dietary preferences of nudibranchs off the Kuril Islands. Fatty acid (FA) compositions of Dendronotus sp., Tritonia tetraquetra, and Colga pacifica collected from deep waters were analyzed and compared with those of Aeolidia papillosa and Coryphella verrucosa from the offshore zone. The high level of FATM such as 22:5n-6 and C20 monounsaturated FAs indicated that Dendronotus sp. preys on sea anemones and/or anthoathecates hydroids similarly to that of shallow-water species A. papillosa and C. verrucosa. The high percentage of tetracosapolyenoic acids and the ratio 24:6n-3/24:5n-6 indicated that T. tetraquetra preys on soft corals such as Gersemia and/or Acanella at a depth of 250 m, but soft corals of the family Primnoidae may be the main item in the diet of T. tetraquetra at a depth of 500 m. The high content of Δ 7,13-22:2 and 22:6n-3 shows that C. pacifica can feed on bryozoans. In C. pacifica, 22:5n-6 may be synthesized intrinsically by the mollusks, whereas odd-chain and branched saturated FAs originate from associated bacteria.
abstract_unstemmed	Gastropod molluscs such as nudibranchs are important members of deep-sea benthic ecosystems. However, data on the trophic ecology and feeding specialization of these animals are limited to date. The method of fatty acid trophic markers (FATM) was applied to determine the dietary preferences of nudibranchs off the Kuril Islands. Fatty acid (FA) compositions of Dendronotus sp., Tritonia tetraquetra, and Colga pacifica collected from deep waters were analyzed and compared with those of Aeolidia papillosa and Coryphella verrucosa from the offshore zone. The high level of FATM such as 22:5n-6 and C20 monounsaturated FAs indicated that Dendronotus sp. preys on sea anemones and/or anthoathecates hydroids similarly to that of shallow-water species A. papillosa and C. verrucosa. The high percentage of tetracosapolyenoic acids and the ratio 24:6n-3/24:5n-6 indicated that T. tetraquetra preys on soft corals such as Gersemia and/or Acanella at a depth of 250 m, but soft corals of the family Primnoidae may be the main item in the diet of T. tetraquetra at a depth of 500 m. The high content of Δ 7,13-22:2 and 22:6n-3 shows that C. pacifica can feed on bryozoans. In C. pacifica, 22:5n-6 may be synthesized intrinsically by the mollusks, whereas odd-chain and branched saturated FAs originate from associated bacteria.
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title_short	A comparison of food sources of nudibranch mollusks at different depths off the Kuril Islands using fatty acid trophic markers
url	https://doi.org/10.7717/peerj.12336 https://doaj.org/article/031b1e8e1714454d812f6e4c1f5ca288 https://peerj.com/articles/12336.pdf https://peerj.com/articles/12336/ https://doaj.org/toc/2167-8359
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The high content of Δ 7,13-22:2 and 22:6n-3 shows that C. pacifica can feed on bryozoans. 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A comparison of food sources of nudibranch mollusks at different depths off the Kuril Islands using fatty acid trophic markers

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