The distribution of epifaunal megabenthos varies with deep-sea sediment conditions in the korea deep ocean study area (kodos) of the north-eastern pacific
SCOPUS
KCI
-
Title
- The distribution of epifaunal megabenthos varies with deep-sea sediment conditions in the korea deep ocean study area (kodos) of the north-eastern pacific
-
Author(s)
- Yu, O.H.; Son, J.W.; Ham, D.J.; Lee, G.C.; Kim, K.H.
- KIOST Author(s)
- Yu, Ok Hwan(유옥환); Ham, Dong Jin(함동진); Lee, Gun Chang(이근창); Kim, Kyeong Hong(김경홍)
-
Alternative Author(s)
- 유옥환; 손주원; 함동진; 이근창; 김경홍
-
Publication Year
- 2014
-
Abstract
- In August, 2013, we collected epifaunal megabenthos using a deep sea camera (DSC) around a benthic impact study (BIS) site. This was located in the KR5 block of the Korea Deep Ocean Study (KODOS) area in the Northeastern Pacific. The DSC was positioned at 6.8 ± 2.9 m (SD) from the sea bottom and was operated from a position at 131o56.85' - 131o55.02'W for 2.3 h at a speed of 1-2 knot. The geographical features of the study area consisted of two structures; a trough in the middle and hills at the east and west sides. Sediment conditions were consistent within six blocks and were affected by slope and polymetallic nodule deposits. We analyzed 226 megafaunal species. Sipunculida comprised the highest percentage of individuals (39%), and the dominant epifaunal megabenthos were Hormathiidae sp., Primnoidae sp., Hexactinellida sp., Hyphalaster inermis, Freyella benthophila, Paelopatides confundens, Psychropotes longicauda, and Peniagone leander. More than 80% of the total density of megafauna occurred on sea plain (D- and E-blocks). We found two distinct groups in the community, one located on sea plains and the other along both sides of the sea slop. Our results suggest that geographical features such as slope and polymetalic nodule deposits are important in controlling the distribution of the epifaunal megabenthos around the KODOS area. © 2014, Korea Ocean Research and Development Institute. All rights reserved.
-
ISSN
- 1598-141X
-
URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/2939
-
DOI
- 10.4217/OPR.2014.36.4.447
-
Bibliographic Citation
- Ocean and Polar Research, v.36, no.4, pp.447 - 454, 2014
-
Publisher
- Korea Ocean Research and Development Institute
-
Subject
- benthos; community composition; community structure; dominance; epifauna; spatial distribution; Pacific Ocean; Pacific Ocean (Northeast); Freyella; Hexactinellida; Hormathiidae; Leander; Paelopatides; Peniagone; Primnoidae; Psychropotes longicauda; Sipunculida
-
Keywords
- Deep sea camera; KODOS; Manganese; Megabenthos; Northeastern Pacific
-
Type
- Article
-
Language
- Korean
-
Document Type
- Article
- Files in This Item:
-
There are no files associated with this item.
Items in ScienceWatch@KIOST are protected by copyright, with all rights reserved, unless otherwise indicated.