Journal article
Catch per unit effort dynamic of Yellowfin Tuna related to sea surface temperature and chlorophyll in southern Indonesia
Fishes, Vol.5(3), Article 28
2020
Abstract
Tuna fisheries are the most valuable fisheries in the world, with an estimated market value of at least US$42 billion in 2018. Indonesia plays an important role in the global tuna fisheries and has committed to improve its fisheries management; therefore, a pilot of long-term spatial-temporal data bases was developed in 2012, however none have utilized data to have better understanding for management improvement. In this study, the annual and seasonal variation of large (≥10 kg) Yellowfin Tuna (YFT) catch per unit effort (CPUE) have been investigated and the influence of sea surface temperature (SST) and chlorophyll-a on these variables examined. We used fish landing data from West Nusa Tenggara recorded every month between 2012 and 2017 and analyzed using generalized linear models and generalized additive models. We found a seasonal and annual pattern of tuna abundance affected by SST and chlorophyll-a (chl a) and related to upwelling and El Nino event. These results also suggest that a two-month closure to fishing in August and September in southern Lombok is worth considering by the Government to maximize conservation of stocks due to a high abundance of juveniles emerging during the upwelling months from June to August.
Details
- Title
- Catch per unit effort dynamic of Yellowfin Tuna related to sea surface temperature and chlorophyll in southern Indonesia
- Authors/Creators
- B. Wiryawan (Author/Creator)N. Loneragan (Author/Creator)U. Mardhiah (Author/Creator)S. Kleinertz (Author/Creator)P.I. Wahyuningrum (Author/Creator)J. Pingkan (Author/Creator). Wildan (Author/Creator)P.S. Timur (Author/Creator)D. Duggan (Author/Creator)I. Yulianto (Author/Creator)
- Publication Details
- Fishes, Vol.5(3), Article 28
- Publisher
- MDPI
- Identifiers
- 991005542727407891
- Copyright
- © 2020 by the authors
- Murdoch Affiliation
- School of Environmental and Conservation Sciences
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.2 Marine Biology
- 3.2.92 Fisheries Ecology
- Web Of Science research areas
- Fisheries
- Marine & Freshwater Biology
- ESI research areas
- Plant & Animal Science