Jurnal Ilmiah Perikanan dan Kelautan
Vol. 13 No. 1 (2021): JURNAL ILMIAH PERIKANAN DAN KELAUTAN

The Length-Weight Relationship and Condition Factors of Bullet Tuna Landed at the Tanjung Luar Fishing Port, Indonesia

Evron Asrial (Department of Fisheries Resources Utilization, Faculty of Fishery, University of 45 Mataram, West Nusa Tenggara.)
Yasir Arapat (Department of Fisheries Resources Utilization, Faculty of Fishery, University of 45 Mataram, West Nusa Tenggara.)
Usma Kurniawan Hadi (Department of Aquaculture, Faculty of Fishery, University of 45 Mataram, West Nusa Tenggara.)
Lalu A.T.T.W.S Kalih (Department of Fisheries Resources Utilization, Faculty of Fishery, University of 45 Mataram, West Nusa Tenggara.)
Mita Ayu Liliyanti (Department of Aquaculture, Faculty of Fishery, University of 45 Mataram, West Nusa Tenggara.)
Erwin Rosadi (Department of Fisheries Resources Utilization, Faculty of Fishery and Marine, University of Lambung Mangkurat, Banjarbaru, South Kalimantan.)
Ruly Isfatul Khasanah (Department of Marine Science, Faculty of Science and Technology, Islamic State University of Sunan Ampel, Surabaya, East Java.)
Ishani Nelunika Rathnayake (Department of Fisheries and Aquaculture, Faculty of Fisheries & Marine Sciences and Technology, University of Ruhuna, Matara.)



Article Info

Publish Date
31 Mar 2021

Abstract

HighlightBullet tuna (Auxis rochei Risso 1810) has been identified (measured, weighed) and analyzed.The resource status of bullet tuna has been estimated based on body shape and age group.LWR curve is implemented to describe and express the age group of bullet tuna (immature, adult/mature, old)This study has resulted the composition and ratio of bullet tuna that is suitable to be caught, fit for consumption and worthy of maturationAbstractBullet tuna (Auxis rochei Risso 1810) or tongkol lisong (Indonesian) is important for human consumption and health as well as an income source for fishers and coastal communities. Its utilization problems are over exploitation, catch domination by immature groups, and the threatened stock security of the bullet tuna (BLT). This research aimed to determine the status of the prospective parent of bullet tuna caught in the Lesser Sunda region, particularly from the Alas Strait to the Indian Ocean, West Nusa Tenggara (WNT). Meanwhile, the data were collected from July to September 2020 (2nd transitional season) at the Tanjung Luar Fishing Port, East Lombok and a dependent survey method was adopted with sampling, interview, observation, and documentation techniques. Fork length and body weight data were used to estimate the length and weight relationship, growth pattern, condition factor, fish age group, and catch worth. The primary and secondary data were processed quantitatively using several equations. The growth pattern of bullet tuna was minor allometric (b = 2.875), worth selling (K > 1.00), and the majority was adult fish or mature group. The LWR model is . This condition indicates the bullet tuna is worth catching  and worth spawning, so that it is eligible to be a potential broodstock candidate to support a sustainable management of BLT fisheries. Furthermore, fishers have applied the code of conduct for responsible fisheries (CCRF) in supporting the sustainable development goals.

Copyrights © 2021






Journal Info

Abbrev

JIPK

Publisher

Subject

Earth & Planetary Sciences

Description

JURNAL ILMIAH PERIKANAN DAN KELAUTAN (JIPK) /SCIENTIFIC JOURNAL OF FISHERIES AND MARINE is a peer-reviewed and open access biannually (April and November) journal that publishes empirical research, recent science development in fisheries and marine, and significant and important research from high ...