Abstract

E. Affinis is one of the important economic fishery commodities. E. Affinis fishing has exceeded the optimum limit. Utilization of E. Affinis has exceeded the optimal limit with high fishing pressure. The reproductive biology of E. Affinis needs to be known to ensure its presence in the wilderness. The purpose of this study was to determine the growth pattern, Gonad Maturity Stage (GMS). The study was carried out in February, April, June to December 2020. The data were collected through direct observation at the Fish Landing Base (PPI) Kedonganan. The sampling technique used in this study was purposive stratified sampling. The results obtained that the growth pattern of male E. affinis is W=0,021L2,9542, and the growth of male E. affinis is isomeric with a length distribution of 25-65cmFL. The size of the first gonad maturity (Lm) is 45.53 cm FL. Gonad Maturity Level (TKG) in macroscopic’s dominated by immature gonad fish.

Details

Title
Reproductive biology of male Euthynnus affinis (Cantor, 1849) in Kedonganan Bali
Author
Arnenda, G L 1 ; Rochman, F 2 ; Wujdi, A 2 ; Kurniawan, R 1 ; Wiratmini, N I 2 ; Wijana, I M S 2 

 Faculty of Mathematics and Natural Sciences, Udayana University; Research Intitute for Tuna Fisheries, Bali 
 Research Intitute for Tuna Fisheries, Bali 
Publication year
2021
Publication date
Oct 2021
Publisher
IOP Publishing
ISSN
17551307
e-ISSN
17551315
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2583107691
Copyright
© 2021. This work is published under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.