Variations in chlorophyll-a concentration and the impact on Sardinella lemuru catches in Bali Strait, Indonesia

Aida Sartimbul; Hideaki Nakata; Erfan Rohadi; Beni Yusuf; Hanggar Prasetyo Kadarisman

doi:10.1016/j.pocean.2010.09.002

Variations in chlorophyll-a concentration and the impact on Sardinella lemuru catches in Bali Strait, Indonesia

Aida Sartimbul^*
, Hideaki Nakata
, Erfan Rohadi
, Beni Yusuf
, Hanggar Prasetyo Kadarisman

^*Corresponding author for this work

Faculty of Fisheries and Marine Sciences

Research output: Contribution to journal › Article › peer-review

75 Citations (Scopus)

Abstract

The variation of chlorophyll-a concentration during 2003-2007 was studied in Bali Strait, Indonesia, using Aqua-Modis satellite data, and their relationships with catch per unit of effort (CPUE) of Sardinella lemuru, sea surface temperature (SST) and indices of climate variability (Niño 3.4 and Indian Ocean Dipole Mode Index) were analyzed. An inverse relationship was found between SST and chlorophyll-a anomalies. Chlorophyll-a anomalies significantly increased at the end of 2006, reaching 1mg/m³ above normal. This increase corresponded with upwelling processes represented by a drop of SST during the El Niño event that coincided with changes in the Indian Ocean Dipole at the end of 2006. There was an unlagged response between chlorophyll-a and SST. However, there was an integrated response between chlorophyll-a and the CPUE of S. lemuru, such that increased catches (and CPUE) of S. lemuru were most highly correlated with increased chlorophyll-a in the prior three months.

Original language	English
Pages (from-to)	168-174
Number of pages	7
Journal	Progress in Oceanography
Volume	87
Issue number	1-4
DOIs	https://doi.org/10.1016/j.pocean.2010.09.002
Publication status	Published - Oct 2010

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@article{7ba1342eeed9413280df3adbaf549d84,

title = "Variations in chlorophyll-a concentration and the impact on Sardinella lemuru catches in Bali Strait, Indonesia",

abstract = "The variation of chlorophyll-a concentration during 2003-2007 was studied in Bali Strait, Indonesia, using Aqua-Modis satellite data, and their relationships with catch per unit of effort (CPUE) of Sardinella lemuru, sea surface temperature (SST) and indices of climate variability (Ni{\~n}o 3.4 and Indian Ocean Dipole Mode Index) were analyzed. An inverse relationship was found between SST and chlorophyll-a anomalies. Chlorophyll-a anomalies significantly increased at the end of 2006, reaching 1mg/m3 above normal. This increase corresponded with upwelling processes represented by a drop of SST during the El Ni{\~n}o event that coincided with changes in the Indian Ocean Dipole at the end of 2006. There was an unlagged response between chlorophyll-a and SST. However, there was an integrated response between chlorophyll-a and the CPUE of S. lemuru, such that increased catches (and CPUE) of S. lemuru were most highly correlated with increased chlorophyll-a in the prior three months.",

author = "Aida Sartimbul and Hideaki Nakata and Erfan Rohadi and Beni Yusuf and Kadarisman, \{Hanggar Prasetyo\}",

year = "2010",

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language = "English",

volume = "87",

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journal = "Progress in Oceanography",

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T1 - Variations in chlorophyll-a concentration and the impact on Sardinella lemuru catches in Bali Strait, Indonesia

AU - Sartimbul, Aida

AU - Nakata, Hideaki

AU - Rohadi, Erfan

AU - Yusuf, Beni

AU - Kadarisman, Hanggar Prasetyo

PY - 2010/10

Y1 - 2010/10

N2 - The variation of chlorophyll-a concentration during 2003-2007 was studied in Bali Strait, Indonesia, using Aqua-Modis satellite data, and their relationships with catch per unit of effort (CPUE) of Sardinella lemuru, sea surface temperature (SST) and indices of climate variability (Niño 3.4 and Indian Ocean Dipole Mode Index) were analyzed. An inverse relationship was found between SST and chlorophyll-a anomalies. Chlorophyll-a anomalies significantly increased at the end of 2006, reaching 1mg/m3 above normal. This increase corresponded with upwelling processes represented by a drop of SST during the El Niño event that coincided with changes in the Indian Ocean Dipole at the end of 2006. There was an unlagged response between chlorophyll-a and SST. However, there was an integrated response between chlorophyll-a and the CPUE of S. lemuru, such that increased catches (and CPUE) of S. lemuru were most highly correlated with increased chlorophyll-a in the prior three months.

AB - The variation of chlorophyll-a concentration during 2003-2007 was studied in Bali Strait, Indonesia, using Aqua-Modis satellite data, and their relationships with catch per unit of effort (CPUE) of Sardinella lemuru, sea surface temperature (SST) and indices of climate variability (Niño 3.4 and Indian Ocean Dipole Mode Index) were analyzed. An inverse relationship was found between SST and chlorophyll-a anomalies. Chlorophyll-a anomalies significantly increased at the end of 2006, reaching 1mg/m3 above normal. This increase corresponded with upwelling processes represented by a drop of SST during the El Niño event that coincided with changes in the Indian Ocean Dipole at the end of 2006. There was an unlagged response between chlorophyll-a and SST. However, there was an integrated response between chlorophyll-a and the CPUE of S. lemuru, such that increased catches (and CPUE) of S. lemuru were most highly correlated with increased chlorophyll-a in the prior three months.

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DO - 10.1016/j.pocean.2010.09.002

M3 - Article

AN - SCOPUS:78649766467

SN - 0079-6611

VL - 87

SP - 168

EP - 174

JO - Progress in Oceanography

JF - Progress in Oceanography

IS - 1-4

ER -

Variations in chlorophyll-a concentration and the impact on Sardinella lemuru catches in Bali Strait, Indonesia

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