Cover Image

How do el niño southern oscillation (ENSO) events impact on fish catch in Sarawak water?

The response of chlorophyll to climate variability plays an important role in regulating the regional marine ecological environment and carbon cycle. This study focuses on the impact of changes in chlorophyll on the catches of deep-water fish and offshore fish. The chlorophyll factors from satellite...

Full description

Saved in:
Bibliographic Details
Main Authors: Ricky Anak Kemarau, Oliver Valentine Eboy
Format: Proceedings
Language:English
English
Published: Faculty of Science and Natural Resources 2021
Subjects:
GC297-299 Water masses and oceanic mixing
SH201-399 Fisheries
Online Access:https://eprints.ums.edu.my/id/eprint/32066/1/How%20do%20el%20ni%C3%B1o%20southern%20oscillation%20%28ENSO%29%20events%20impact%20on%20fish%20catch%20in%20Sarawak%20water.ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/32066/2/How%20do%20El%20Ni%C3%B1o%20Southern%20Oscillation%20%28ENSO%29%20Events%20Impact%20On%20Fish%20Catch%20in%20Sarawak%20Water.pdf
https://eprints.ums.edu.my/id/eprint/32066/
https://drive.google977-2-73-522200-2.com/file/d/1zKEpSiYvg9vZHHzuKra49512D_AMLubu/view
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.ums.eprints.32066
record_format eprints
spelling my.ums.eprints.320662022-03-31T00:02:50Z https://eprints.ums.edu.my/id/eprint/32066/ How do el niño southern oscillation (ENSO) events impact on fish catch in Sarawak water? Ricky Anak Kemarau Oliver Valentine Eboy GC297-299 Water masses and oceanic mixing SH201-399 Fisheries The response of chlorophyll to climate variability plays an important role in regulating the regional marine ecological environment and carbon cycle. This study focuses on the impact of changes in chlorophyll on the catches of deep-water fish and offshore fish. The chlorophyll factors from satellite image MODIS were analyzed during La Niña in 2008/2011 and El Niño in 2015/2016. The results found that the fish catch during El Niño is higher at 295572 metric tons compared to during La Niña which is 255783 metric tons. The El Niño event was found to have experienced a decline in catch of 29789 metric tons. This is due to the influence of the change in the mean value of the concentration in the study area of 0.31 mg-3 during La Niña compared to during El Niño 0.4 m mg-3. A decrease in the average value concentration of -0.09 mg-3 resulted in a decrease in the number of catches. In addition, the maximum value of chlorophyll concentration was also found to be high during El Niño which is 22 m mg-3 compared to during La Niña which is 18 m mg-3. The high distribution of chlorophyll-a is in the coastal areas of Sarawak, which explains why the coastal fish catches are higher than in the deep sea. It is concluded that the distribution of chlorophyll concentration is different during the occurrence of ENSO. This may result in different fishing rates in the study area. Remote sensing technology successfully explains why fish catches during El Niño are higher than during La Niña based on different chlorophyll dispersions. The provision of information in this space is very important to fishermen to reduce operating costs. Faculty of Science and Natural Resources 2021-10 Proceedings PeerReviewed text en https://eprints.ums.edu.my/id/eprint/32066/1/How%20do%20el%20ni%C3%B1o%20southern%20oscillation%20%28ENSO%29%20events%20impact%20on%20fish%20catch%20in%20Sarawak%20water.ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/32066/2/How%20do%20El%20Ni%C3%B1o%20Southern%20Oscillation%20%28ENSO%29%20Events%20Impact%20On%20Fish%20Catch%20in%20Sarawak%20Water.pdf Ricky Anak Kemarau and Oliver Valentine Eboy (2021) How do el niño southern oscillation (ENSO) events impact on fish catch in Sarawak water? https://drive.google977-2-73-522200-2.com/file/d/1zKEpSiYvg9vZHHzuKra49512D_AMLubu/view
institution Universiti Malaysia Sabah
building UMS Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Sabah
content_source UMS Institutional Repository
url_provider http://eprints.ums.edu.my/
language English
English
topic GC297-299 Water masses and oceanic mixing
SH201-399 Fisheries
spellingShingle GC297-299 Water masses and oceanic mixing
SH201-399 Fisheries
Ricky Anak Kemarau
Oliver Valentine Eboy
How do el niño southern oscillation (ENSO) events impact on fish catch in Sarawak water?
description The response of chlorophyll to climate variability plays an important role in regulating the regional marine ecological environment and carbon cycle. This study focuses on the impact of changes in chlorophyll on the catches of deep-water fish and offshore fish. The chlorophyll factors from satellite image MODIS were analyzed during La Niña in 2008/2011 and El Niño in 2015/2016. The results found that the fish catch during El Niño is higher at 295572 metric tons compared to during La Niña which is 255783 metric tons. The El Niño event was found to have experienced a decline in catch of 29789 metric tons. This is due to the influence of the change in the mean value of the concentration in the study area of 0.31 mg-3 during La Niña compared to during El Niño 0.4 m mg-3. A decrease in the average value concentration of -0.09 mg-3 resulted in a decrease in the number of catches. In addition, the maximum value of chlorophyll concentration was also found to be high during El Niño which is 22 m mg-3 compared to during La Niña which is 18 m mg-3. The high distribution of chlorophyll-a is in the coastal areas of Sarawak, which explains why the coastal fish catches are higher than in the deep sea. It is concluded that the distribution of chlorophyll concentration is different during the occurrence of ENSO. This may result in different fishing rates in the study area. Remote sensing technology successfully explains why fish catches during El Niño are higher than during La Niña based on different chlorophyll dispersions. The provision of information in this space is very important to fishermen to reduce operating costs.
format Proceedings
author Ricky Anak Kemarau
Oliver Valentine Eboy
author_facet Ricky Anak Kemarau
Oliver Valentine Eboy
author_sort Ricky Anak Kemarau
title How do el niño southern oscillation (ENSO) events impact on fish catch in Sarawak water?
title_short How do el niño southern oscillation (ENSO) events impact on fish catch in Sarawak water?
title_full How do el niño southern oscillation (ENSO) events impact on fish catch in Sarawak water?
title_fullStr How do el niño southern oscillation (ENSO) events impact on fish catch in Sarawak water?
title_full_unstemmed How do el niño southern oscillation (ENSO) events impact on fish catch in Sarawak water?
title_sort how do el niño southern oscillation (enso) events impact on fish catch in sarawak water?
publisher Faculty of Science and Natural Resources
publishDate 2021
url https://eprints.ums.edu.my/id/eprint/32066/1/How%20do%20el%20ni%C3%B1o%20southern%20oscillation%20%28ENSO%29%20events%20impact%20on%20fish%20catch%20in%20Sarawak%20water.ABSTRACT.pdf
https://eprints.ums.edu.my/id/eprint/32066/2/How%20do%20El%20Ni%C3%B1o%20Southern%20Oscillation%20%28ENSO%29%20Events%20Impact%20On%20Fish%20Catch%20in%20Sarawak%20Water.pdf
https://eprints.ums.edu.my/id/eprint/32066/
https://drive.google977-2-73-522200-2.com/file/d/1zKEpSiYvg9vZHHzuKra49512D_AMLubu/view
_version_ 1760230975903629312
score 13.211869

Similar Items