Benthos meets plankton: Isopods sampled in the Japan Trench by means of plankton nets fixed to large bottom trawls-Reference-Cited by-同舟云学术

Benthos meets plankton: Isopods sampled in the Japan Trench by means of plankton nets fixed to large bottom trawls

Published:2024-01-18 Issue: Volume: Page:
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Author:

Brandt Angelika¹^ORCID,Bergmeier Franziska²,Casaubon Anchita³,Kano Yasunori⁴,Kelch Andreas⁵,Knauber Henry⁶,Okamoto Kai⁴,Ohta Mizuki⁴,Shiraki Shoki⁴,Yamamoto Daiki⁴,Kojima Shigeaki⁴

Affiliation:

1. Senckenberg Gesellschaft fur Naturforschung

2. Ludwig-Maximilians-Universität München Adolf-Butenandt-Institut: Ludwig-Maximilians-Universitat Munchen Biomedizinisches Centrum Munchen

3. Senckenberg Forschungsinstitut und Naturmuseum Frankfurt: Senckenberg Forschungsinstitut und Naturmuseum

4. University of Tokyo - Kashiwa Campus: Tokyo Daigaku - Kashiwa Campus

5. Senckenberg Naturforschende Gesellschaft: Senckenberg Gesellschaft fur Naturforschung

6. Senckenberg Research Institutes and Natural History Museums: Senckenberg Gesellschaft fur Naturforschung

Abstract

Abstract During the expedition KH-23-5 with RV Hakuho Maru to the Kuril-Kamchatka (KKT) and Japan Trenches (JT) in September 2023, bottom trawls were deployed with plankton nets and yielded a high number of supra- and epibenthic benthic organisms, especially a high number of isopod crustaceans (Peracarida, Malacostraca). In total, we sampled 2,634 specimens of Isopoda from at least 14 families and the suborder Epicaridea at 28 stations. Five families occurred with more than 100 specimens, these were the Munnopsidae with the highest number of specimens (1,122 individuals), followed by Haploniscidae with 564, Macrostylidae with 430, Ischnomesidae with 245, and Desmosomatidae with 168 individuals. Station C8 yielded the highest number of individuals (488) and at station F11 only a single isopod was sampled. Our data document the efficiency of these additional plankton nets and we recommend to deploy bottom trawls with plankton nets in future more frequently.

Publisher

Research Square Platform LLC

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