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313474

Stock Study of the Skipjack Tuna (Katsuwonus pelamis, L., 1758) in Ternate Island, North Maluku Province, Indonesia

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Last updated: 01 Jan 2025

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Abstract

Due to the continuous exploitation of skipjack tuna in the waters of Ternate Island, using active pole and line fishing gears, the skipjack tuna population is suspected to experience degradation in the waters of Ternate Island. Therefore, this research was conducted with the aim of analyzing the status of skipjack tuna populations in the waters of Ternate Island based on population dynamics studies, including parameters of growth, mortality, recruitment and exploitation rate. Experimental fishing methods were implemented to measure fish length which was then analyzed to determine the pattern of growth, mortality, exploitation rate, and yield per recruit. The results showed that the parameter of the skipjack tuna population studied had an asymptote length (L∞) of 77.7 cm, with a   growth coefficient of 0.4 per year and a t0 of -0.41.  Furthermore, natural mortality (M) was 1.75, while fishing mortality was determined as 1.60, and the current exploitation rate (E) showed a value of 0.48.  These values indicate that the management of skipjack tuna in Ternate Island waters is close to optimum conditions (E = 0.5).

DOI

10.21608/ejabf.2023.313474

Keywords

Skipjackttuna, Katsuwonusppelamis, Population aspect, Mortalityy

Authors

First Name

Umar

Last Name

Tangke et al.

MiddleName

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Affiliation

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Orcid

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Volume

27

Article Issue

4

Related Issue

42323

Issue Date

2023-07-01

Receive Date

2023-08-18

Publish Date

2023-07-01

Page Start

919

Page End

929

Print ISSN

1110-6131

Online ISSN

2536-9814

Article File

EJABF_Volume 27_Issue 4_Pages 919-929.pdf

PDF . 704.4kB

Link

https://ejabf.journals.ekb.eg/article_313474.html

Detail API

https://ejabf.journals.ekb.eg/service?article_code=313474

Order

58

Type

Original Article

Type Code

103

Publication Type

Journal

Publication Title

Egyptian Journal of Aquatic Biology and Fisheries

Publication Link

https://ejabf.journals.ekb.eg/

MainTitle

Stock Study of the Skipjack Tuna (Katsuwonus pelamis, L., 1758) in Ternate Island, North Maluku Province, Indonesia

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Article

Created At

23 Dec 2024