Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

p-Index From 2021 - 2026

P-Index

This Author published in this journals

All Journal Indonesian Fisheries Research Journal

Lilis Sadiyah

Research Center for Fisheries Management and Conservation, Ancol-Jakarta

Author-ID : 3721227

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

Published : 3 Documents Claim Missing Document

Claim Missing Document

Articles

CPUE TRENDS OF THE INDONESIA’S TUNA LONGLINE FISHERY: LESSONS LEARNED FROM A TRIAL OBSERVER PROGRAM Lilis Sadiyah; Natalie Dowling; Budi Iskandar Prisantoso; Retno Andamari; Craig Proctor
Indonesian Fisheries Research Journal Vol 20, No 1 (2014): (June 2014)
Publisher : Research Center for Fisheries

In an effort to address a shortage of reliable CPUE information, and as a preliminary step to a broader observer program, Indonesia established a Trial Observer Program (TOP) for the industrial tuna long line fishery based at Benoa Fishing Port, Bali, in mid 2005. The objectives of this paper are i) to describe spatial and temporal catch and effort trends from the Indonesian Indian Ocean industrial tuna long line fishery based at Benoa Fishing Port, and ii) to provide an understanding of the fishing strategies used by different companies and of the environmental conditions that may influence catch trends. The observed effort covered areas both north and south of 20°S, with a concentration within 10°-20°S; 105°-120°E which overlaps with the only known spawning grounds of southern bluefin tuna (SBT). This data set showed that SBT comprised the lowest catch proportion, relative to the other three tuna species caught, bigeye tuna (BET), yellowfin tuna (YFT) and albacore (ALB). BET and ALB had been suggested as the main target species for the fishery, but this varied by region. The TOP data set suggests that different tuna fishing companies targeted different species and used different fishing practices, including differences in bait used, areas fished, start time of setting, and the number of hooks between floats (HBF). It is a priority to improve the spatial and temporal coverage of the observer program before the data can be considered to be representative of the fleet, particularly given the high degree of variability in fishing practices between companies.

FISHING STRATEGY OF THE INDONESIAN TUNA LONGLINERS IN INDIAN OCEAN Lilis Sadiyah; Budi lskandar Prisantoso
Indonesian Fisheries Research Journal Vol 17, No 1 (2011): (June 2011)
Publisher : Research Center for Fisheries

Information on fishing strategy is essential to manage the Indonesian tuna fishery. Therefore, it is important to attempt to characterise the fishing strategies of the fishery.

CHANGES IN FISHING PATTERN FROM SURFACE TO DEEP LONGLINE FISHING BY THE INDONESIAN VESSELS OPERATING IN THE INDIAN OCEAN Lilis Sadiyah; Natalie Dowling; Budi Iskandar Prisantoso
Indonesian Fisheries Research Journal Vol 17, No 2 (2011): (December, 2011)
Publisher : Research Center for Fisheries

(P.T. Perikanan Samodra Besar) data are a valuable source, since they are the longest time series of catch and effort data available from the fishery. This paper aimed to interpret the spatial and temporal catch and effort trends to the extent possible and to reconcile apparent changes in targeting practices against the actual catch. Catch and effort data collected by P.T. Perikanan Samodra Besar from its Benoa-based longliners during 1978-1995 were summed to obtain annual catch, effort, and catch per unit of effort trends. To generate spatial distributions of catch and effort, catch and effort data were aggregated by 5-degree squares. The data showed that P.T. Perikanan Samodra Besar vessels commenced deep longlining in 1983, i.e. 56% of the total sets in 1983 using 10 or more hooks between floats. Prior to that, P.T. Perikanan Samodra Besar vessels used 6 hooks between floats,which resulted in a larger amount of yellowfin tuna (Thunnus albacares) as well as overall tuna catch. However, bigeye tuna (Thunnus obsesus) catch per unit of effort only increased from 1992. The increase in big eye tuna catch per unit of effort coincided with a reduced fishing range and concentration within an area where P.T. Perikanan Samodra Besar had not previously experienced high big eye tuna catches, as opposed to focusing their effort on areas where they had historically caught big eye tuna. In the absence of supplementary information, and assuming that the switch to deep longlining in 1983 was done to target big eye tuna, the analysis suggests that the outcome of P.T. Perikanan Samodra Besar fishing activities between 1983 and 1991 were inconsistent with their objectives.

Co-Authors Budi Iskandar Prisantoso Budi lskandar Prisantoso Craig Proctor Natalie Dowling Natalie Dowling Retno Andamari

Title

Found 3 Documents
Search

Abstract

Abstract

Abstract

Title Search

Found 3 Documents Search

Abstract

Abstract

Abstract

Title

Found 3 Documents
Search