Article Per Year (5 Year)
p-Index From 2020 - 2025
0.23
P-Index
This Author published in this journals
All Journal Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology
Suradi Wijaya Saputra
Faculty of Fisheries and Marine Sciences, Diponegoro University
Education

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
ANALYSIS OF STOCK AND UTILIZATION RATE OF LONGTAIL TUNA (Thunnus tonggol) IN THE JAVA SEA Eki Septiana; Suradi Wijaya Saputra; Haeruddin Haeruddin
Saintek Perikanan : Indonesian Journal of Fisheries Science and Technology Vol 17, No 1 (2021): SAINTEK PERIKANAN
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijfst.17.1.%p

Abstract

Longtail is one of the most important economic species in Indonesia to purse seine and mini purse seine catch. This research activity aims to determine population parameter i.e. growth, mortality, and determine the management strategies for longtail tuna. The collecting of length and weight data was conducted at Pekalongan fishing port from October to December 2019. The sampling method used was a systematic random sampling method, with the collected data being the length and weight of the longtail tuna. The long weight r relationship was negative allometric and the b value was 2.7776. The asymptotic length rate (L∞) was 55 cm FL, growth rate (K) was 0,88/year and zero age (t0) was 0,1536 year. Natural mortality (M) is 1.41/year, fishing mortality (F) is 1.38/year, total mortality (Z) is 2.79/year. The level of exploitation (E) of 0.49 (underexploited), so that utilization can be increased.
Co-Authors Eki Septiana Haeruddin Haeruddin