JEB logo

Journal of Environmental Biology

pISSN: 0254-8704 ; eISSN: 2394-0379 ; CODEN: JEBIDP

About Journal
    Editorial Board
    Reviewer Panel
    RnD Division
    Subscription Info
    Contact Journal
 
Read Journal
    Current Issue
    Journal Archives
 
For Authors
    Authoring Guidelines
    Publication Process
    Track Paper Status
 

Search the Journal web-site through Google:


        Abstract - Issue Jul 2008, 29 (4)                                                                                                             Back



Abstract

Distribution of a pelagic tunicate, Salpa fusiformis in warm surface current of the eastern Korean waters and its impingement on cooling water intakes
of Uljin nuclear power plant

Jinho Chae*1, Hyun Woo Choi2, Woo Jin Lee2, Dongsung Kim2 and Jae Hac Lee2

1Korea Environmental Research Center for Hydrosphere, 634-1 Yi dong, Sangnok gu, Ansan, Gyeonggi do 426-857, Republic of Korea
2Korea Ocean Research and Development Institute, Ansan, P.O. Box 29, Seoul 425-600,Republic of Korea

(Received: February 22, 2007; Revised received:? April 14, 2008; Accepted: April 18, 2008)

Abstract: Impingement of a large amount of gelatinous plankton, Salpa fusiformis on the seawater intake system-screens in a nuclear power plant at Uljin was firstly recorded on 18th June 2003. Whole amount of the clogged animals was estimated were presumptively at 295 tons and the shortage of cooling seawater supply by the animal clogging caused 38% of decrease in generation capability of the power plant. Zooplankton collection with a multiple towing net during the day and at night from 5 to 6 June 2003 included various gelatinous zooplanktons known to be warm water species such as salps and siphonophores. Comparatively larger species, Salpa fusiformis occupied 25.4% in individual density among the gelatinous plankton and showed surface distribution in the depth shallower than thermocline, performing little diel vertical migration. Temperature, salinity and satellite data also showed warm surface current predominated over the southern coastal region near the power plant in June. The results suggested that warm surface current occasionally extended into the neritic region may transfer S. fusiformis, to the waters off the power plant. The environmental factors and their relation to ecobiology of the large quantity of salpa population that are being sucked into the intake channel of the power plant are discussed.

Key words: Salpa fusiformis, Depth distribution, Power plant impingement, Cooling water intakes

PDF of full length paper is available with author (jchae@ketch.co.kr)

 

Copyright ? 2008 Triveni Enterprises. All rights reserved. No part of the Journal can be reproduced in any form without prior permission. Responsibility regarding the authenticity of the data, and the acceptability of the conclusions enforced or derived, rest completely with the author(s).