Sustainable harvesting of Tenualosa Toli in Sarawak / Noriham Bujang

This research concerns the sustainable harvesting of the Tenualosa toli (T. toli) fish in Sarawak. T. toli is already on the brink of extinction due to unlimited fishing of the species in all of Sarawak’s rivers. Modem technology has increased fishing capacity year by year. This has resulted in the...

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Main Author:	Bujang, Noriham
Format:	Thesis
Language:	English
Published:	2014
Online Access:	http://ir.uitm.edu.my/id/eprint/16394/ http://ir.uitm.edu.my/id/eprint/16394/2/TM_NORIHAM%20BUJANG%20CS%2014_5.pdf

id	uitm-16394
recordtype	eprints
spelling	uitm-163942019-02-21T01:58:57Z http://ir.uitm.edu.my/id/eprint/16394/ Sustainable harvesting of Tenualosa Toli in Sarawak / Noriham Bujang Bujang, Noriham This research concerns the sustainable harvesting of the Tenualosa toli (T. toli) fish in Sarawak. T. toli is already on the brink of extinction due to unlimited fishing of the species in all of Sarawak’s rivers. Modem technology has increased fishing capacity year by year. This has resulted in the decline of the landings of T. toli fish. Hence, fishing activities have become less profitable due to over harvesting of T. toli in Sarawak’s rivers. Therefore, it is essential to estimate harvesting at maximum sustainable yield, HMSY in order to ensure that T. toli can be continuously harvested and to protect the fish from becoming extinct. This research will attempt to determine the effort at maximum sustainable yield, EMSY of T. toli using the Schaefer model and the Fox model. These models are surplus production model which are useful when limited data are available. The Schaefer model incorporates the logistic growth model to capture the population dynamics whereas the Fox model incorporates the Gompertz growth model to capture the population dynamics. The intrinsic growth rate, the carrying capacity and the catchability coefficient are estimated from the catch and effort data. These values are needed to estimate HMSY and EMSY. This research will add to the body of knowledge regarding sustainable harvesting policies that will ensure a continuous sufficient supply of T. toli. The appropriate level of fishing effort and the corresponding sustainable biomass growth can be suggested to the regulating body that oversees fishing operations. If this species can be replenished, the abundance of T. toli may spur other related fish products such as fish oil from T. toli which is rich in omega-3 and omega-6. 2014 Thesis NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/16394/2/TM_NORIHAM%20BUJANG%20CS%2014_5.pdf Bujang, Noriham (2014) Sustainable harvesting of Tenualosa Toli in Sarawak / Noriham Bujang. Masters thesis, Universiti Teknologi MARA.
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
description	This research concerns the sustainable harvesting of the Tenualosa toli (T. toli) fish in Sarawak. T. toli is already on the brink of extinction due to unlimited fishing of the species in all of Sarawak’s rivers. Modem technology has increased fishing capacity year by year. This has resulted in the decline of the landings of T. toli fish. Hence, fishing activities have become less profitable due to over harvesting of T. toli in Sarawak’s rivers. Therefore, it is essential to estimate harvesting at maximum sustainable yield, HMSY in order to ensure that T. toli can be continuously harvested and to protect the fish from becoming extinct. This research will attempt to determine the effort at maximum sustainable yield, EMSY of T. toli using the Schaefer model and the Fox model. These models are surplus production model which are useful when limited data are available. The Schaefer model incorporates the logistic growth model to capture the population dynamics whereas the Fox model incorporates the Gompertz growth model to capture the population dynamics. The intrinsic growth rate, the carrying capacity and the catchability coefficient are estimated from the catch and effort data. These values are needed to estimate HMSY and EMSY. This research will add to the body of knowledge regarding sustainable harvesting policies that will ensure a continuous sufficient supply of T. toli. The appropriate level of fishing effort and the corresponding sustainable biomass growth can be suggested to the regulating body that oversees fishing operations. If this species can be replenished, the abundance of T. toli may spur other related fish products such as fish oil from T. toli which is rich in omega-3 and omega-6.
format	Thesis
author	Bujang, Noriham
spellingShingle	Bujang, Noriham Sustainable harvesting of Tenualosa Toli in Sarawak / Noriham Bujang
author_facet	Bujang, Noriham
author_sort	Bujang, Noriham
title	Sustainable harvesting of Tenualosa Toli in Sarawak / Noriham Bujang
title_short	Sustainable harvesting of Tenualosa Toli in Sarawak / Noriham Bujang
title_full	Sustainable harvesting of Tenualosa Toli in Sarawak / Noriham Bujang
title_fullStr	Sustainable harvesting of Tenualosa Toli in Sarawak / Noriham Bujang
title_full_unstemmed	Sustainable harvesting of Tenualosa Toli in Sarawak / Noriham Bujang
title_sort	sustainable harvesting of tenualosa toli in sarawak / noriham bujang
publishDate	2014
url	http://ir.uitm.edu.my/id/eprint/16394/ http://ir.uitm.edu.my/id/eprint/16394/2/TM_NORIHAM%20BUJANG%20CS%2014_5.pdf
first_indexed	2023-09-18T22:55:58Z
last_indexed	2023-09-18T22:55:58Z
_version_	1777417855856279552

Sustainable harvesting of Tenualosa Toli in Sarawak / Noriham Bujang

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