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- Title
Spatio-temporal distribution of sergestid shrimp Acetes intermedius in the coastal waters of southwestern Taiwan.
- Authors
Wann-Duen Chiou; Chin-Cheng Wu; Lei-Zong Cheng
- Abstract
Spatio-temporal variation of the sergestid shrimp Acetes intermedius in the coastal waters of southwestern Taiwan was investigated based on 1546 samples collected by 13 commer-cial fishing vessels from July to October 1996. Adult sergestid shrimp started a down-estuary migra-tion with the increased river discharge associated with heavy summer rainfall. Fishing season for this species was to commence after that. In July, the shrimp stock was found on the shallow continental shelf off Tungkang and Fangshan. They mainly aggregated in Kaoping Canyon off Tungkang during August and September occurring at very high densities. In October, the shrimp returned to the coastal waters off Tungkang and Fangshan at lower densities. The heavy rainfall is a factor that triggers the shrimps to make a down-estuary migration that could reduce competition for food between adults and their offspring during the period of high river discharge. When the northeast monsoon prevailed, the sergestid shrimp moved back to the estuaries and the fishing season was terminated.
- Subjects
TAIWAN; SERGESTIDAE; INTRACOASTAL waterways; FOOD chains
- Publication
Fisheries Science, 2000, Vol 66, Issue 6, p1014
- ISSN
0919-9268
- Publication type
Article
- DOI
10.1046/j.1444-2906.2000.00163.x