Migration, growth and feeding habit of John's snapper Lutjanus johnii and duskytail grouper Epinephelus bleekeri in Merbok mangrove brackish river
Share
Abstract
This study was conducted to estimate the migration and population growth in total length and to observe the food organisms found in the stomach of John's snapper and Duskytail grouper. John's snapper and Duskytail grouper were caught monthly between October 2001 and September 2002 at the Merbok mangrove brackish river, Kedah, Japan. A total of 1308 John's snapper juvenile fishes with total length ranging from 61 to 238 mm were collected.
Suggested Citation
Ogawa, Y. (2003). Migration, growth and feeding habit of John's snapper Lutjanus johnii and duskytail grouper Epinephelus bleekeri in Merbok mangrove brackish river. In Y. Ogawa, H. Y. Ogata, Y. Maeno, T. Shimoda, Y. Fujioka, & Y. Fukuda (Eds.), Proceedings of the 2nd Workshop of the JIRCAS International Collaborative Research: Studies on Sustainable Production Systems of Aquatic Animals in Brackish Mangrove Areas , December 2-3, 2002, Penang, Malaysia (pp. 1-10). Japan International Research Center for Agricultural Sciences.
Type
Conference paperISSN
1341-710XSeries
JIRCAS Working Report;No. 35Related items
Showing items related by title, author, creator and subject.
-
Culture of grouper, sea bass and red snapper
(University of the Philippines Aquaculture Society, Inc., 2001)Marine fish production has increased dramatically in the past ten years and majority of the cultured species were produced in Asia in 1992. Increase in production was accompanied with concerns on increasing outbreak of disease, degradation of environment as a consequence of culture practices, and the alleged shortage of seed supply and feeds. This paper reviews the state of the art of the culture of grouper, sea bass and red snapper. -
Pathogenic Vibrio isolates from cultured seabass (Lates calcarifer), groupers (Epinephelus spp.) and red snappers (Lutjanus spp.)
(Fish Health Section, Asian Fisheries Society, 2002)Heavy mortality of cultured seabass (Lates calcarifer), groupers (Epinephelus spp.) and snappers (Lutjanus spp.) due to bacterial infection is a common problem in Malaysia. All the three species exhibited a wide range of clinical signs in the presence of suspected Vibrio spp. infection. Early stages of infection in the three cultured species ranged from abnormal body color change, poor swimming activity and feeding, and erythema and hemorrhage in and around the mouth and at the base of fins. Advance stages of infections showed petechiae and ulcerative haemorrhagic lesions. This study was carried out to isolate the various pathogenic Vibrio spp. affecting the cultured finfish and to differentiate their strains by morphological, physiological and biochemical characters. -
Grow-out culture of seabass, grouper and snapper in ponds
(Aquaculture Department, Southeast Asian Fisheries Development Center, 2009)
