ENVIRONMENTAL VARIABILITY ASSOCIATED WITH EASTERN LITTLE TUNA [Eutynnus affinis (Cantor, 1849)] CATCHES: A CASE FOR THE NORTH INDRAMAYU WATERS, JAVA SEA
DOI:
https://doi.org/10.11113/jt.v78.8195Keywords:
Catch, chlorophyll a, eastern little tuna [(Eutynnus affinis (Cantor, 1849)], el niño, la niña, sea surface temperatureAbstract
Environmental variability during El Niño Southern Oscillation (ENSO) derived from satellite imagery of Sea Surface Temperature and Chlorophyll a were investigated during 2010 to 2014. This study investigates how ocean climate variability of ENSO affects environmental conditions and further addresses their relations with Eastern Little Tuna catches. Changes in environmental conditions during ENSO events resulted in perceivable variations in catches, with an average catches of 839.6 t during El Niño. The La Niña event, with an average catches of 602.6 t was less favorable for catches. Major fishing location located around 3.22-6.59ºS and 108.20-109.67ºE could have been suggested as the most favorable environmental condition to Eastern Little Tuna catch in the North Indramayu waters, Java Sea.
References
Potemra, J. T. and N. Schneider. 2007. Interannual Variations of the Indonesian Throughflow. Journal of Geophysical Research. 112: 1–13.
Lan, J., J. Hong, and Y. Wang. 2008. Relationship of the Interannual Variability of the Indonesian Throughflow with the IOD Over the Tropical Indian Ocean. Theoretical and Applied Climatology. 97: 75–79.
Qu, T., Y. Du, J. Strachan, G. Meyers, and J. Slingo. 2005. Sea Surface Temperature and Its Variability in the Indonesian Region. Oceanography. 18: 50–123.
Howell, E. A. and D. R. Kobayashi. 2006. El Niño Effects in the Palmyra Atoll Region: Oceanographic Changes and Bigeye Tuna (Thunnus obesus) Catch Rate Variability. Fisheries Oceanography. 15: 477–489.
Lehodey, P., I. SeNiña, J. Sibert, J. L. Bopp, B. Calmettes, J. Hampton, and R. Murtugudde. 2010. Preliminary Forecast of Pacific Bigeye Tuna Population Trends Under the A2 IPCC Scenario. Progress of Oceanography. 86: 302–315.
Pepperell, J. 2010. Fishes of the Open Ocean. Chicago: The University of Chicago Press.
Wyrtki, K. 1961. Physical Oceanography of Southeast Asian Waters. California: Naga Report 2 Scripps Institution of Oceanography.
Syamsuddin, M. L., S. Saitoh, T. Hirawake. A. B. Harto, and S. Bahri. 2013. Effects of El Niño-Southern Oscillation Events on Catches of Bigeye Tuna (Thunnus obesus) in the Eastern Indian Ocean Off Java. Fishery Bulletin. 111: 175–188.
Clarke, A. J. and X. Liu. 1994. Observations and Dynamic of Semiannual and Annual Sea Levels Near the Eastern Indian Ocean Boundary. Journal of Physical Oceanography. 23: 386–399.
Potemra, J. T. 2001. Contribution of Equatorial Pacific Winds to Southern Tropical Indian Ocean Rossby Waves. Journal of Geophysical Research. 106: 2407–2422.
Meyers, G. 1996. Variation of Indonesian Throughflow and the El Niño-Southern Oscillation. Journal of Geophysical Research. 101: 12255–12263.
Downloads
Published
Issue
Section
License
Copyright of articles that appear in Jurnal Teknologi belongs exclusively to Penerbit Universiti Teknologi Malaysia (Penerbit UTM Press). This copyright covers the rights to reproduce the article, including reprints, electronic reproductions, or any other reproductions of similar nature.