Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Indonesian Fisheries Research Journal

ifrj
Website

Published by Kementerian Kelautan dan Perikanan RI

ISSN : 08538980 EISSN : 25026569 DOI : -

Core Subject : Science, Agriculture,

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

Indonesian Fisheries Research Journal published in Indonesia by Center for Fisheries Research. Indonesian Fisheries Research Journal publishes research results on resources, fisheries biology, management, environment related to marine, coastal and inland waters.

Arjuna Subject : -

Articles 6 Documents

Search results for , issue "Vol 26, No 1 (2020): (June) 2020" : 6 Documents clear

THE IMPACT OF ENVIRONMENTAL CHANGES ON BLACK MARLIN, Makaira indica (Cuvier, 1832) ABUNDANCES IN THE EASTERN INDIAN OCEAN Bram Setyadji; Zulkarnaen Fahmi
Indonesian Fisheries Research Journal Vol 26, No 1 (2020): (June) 2020
Publisher : Research Center for Fisheries

Black marlin (Makaira indica) is commonly caught as frozen by-catch from Indonesian tuna longline fleets. Its contribution estimated 18% (~2,500 tons) from total catch in Indian Ocean. Relative abundance indices as calculated based on commercial catches are the input data for several to run stock assessment analyses that provide models to gather information useful information for decision making and fishery management, however, little are known about the influence of environmental factors to its abundance. In this paper, the abundance was represented as standardized index in order to eliminate any bias on other factors which might influence it. Data were collected from August 2005 to December 2017 through scientific observer program (2005-2017) and national observer program (2016-2017). Most of the vessels monitored were based in Benoa Port, Bali. Overall, time trends of abundance was fluctuated, although, there was increasing trend since 2010 then dropped significantly into relatively similar figure in 2005. Even though, Sea Surface Temperature (SST) and Sea Surface Height (SSH) were statistically significant when incorporating into the models, but it allegedly wasn’t the main driver in determining the abundance of black marlin. Instead, it was more likely driven by spatio-temporal factors (year and area) effect rather than environmental changes.

SOME REPRODUCTIVE BIOLOGY OF SKIPJACK TUNA (Katsuwonus pelamis LINNAEUS, 1758) IN TOLI-TOLI WATERS, CENTRAL SULAWESI Umi Chodrijah; Thomas Hidayat; Karsono Wagiyo
Indonesian Fisheries Research Journal Vol 26, No 1 (2020): (June) 2020
Publisher : Research Center for Fisheries

Skipjack tuna (Katsuwonus pelamis) was one of the export commodities, where the demand and exploitation tend to increase, so sustainable fisheries management is needed based on biological data. The objective of the research was to study the several aspects of biology including of length of weight relationship, sex ratio maturity stage, gonada somatic index (GSI), length at first capture, and length at first maturity. The research was conducted in February - December 2015 in Toli-toli, Central Sulawesi. The results showed that the skipjack tuna growth pattern was allometrically positive (b= 3,318 for male and b = 3.3049 for female), where growth weight was faster than the increased length. The length of the first time capture skipjack tuna of pole and line (43.49 cmFL) was bigger than length at first maturity (41,007 cmFL). It means the mostly skipjack tuna caught have already spawned. The spawning season occurred throughout the year with spawning peaks are in April and September, with fecundity ranging from 450,570 to 1,707,390 eggs.

CPUE STANDARDIZATION OF FRIGATE TUNA (Auxis thazard) CAUGHT BY PURSE SEINE IN THE WESTERN SUMATERA COAST (FMA 572) Ririk Kartika Sulistyaningsih; Irwan Jatmiko; Maya Agustina
Indonesian Fisheries Research Journal Vol 26, No 1 (2020): (June) 2020
Publisher : Research Center for Fisheries

Frigate tuna (Auxis thazard) is one of the major commercial tuna species, both in industrial and small scale fisheries, particularly in the waters off Western Sumatera. In Indonesia, A. thazard is a group of locally called “tongkol” together with A. rochei, Thunnus tonggol, and Euthynnus affinis. This study describes a preliminary examination of frigate tuna catch from purse seine off the coast of western Sumatera (FMA 572). The data were collected daily by an enumerator on the fish landing site from 2013 to 2017, including fishing gear, number of days at sea, catch, length, and weight of frigate tuna. The fishing ground coordinate data provided by the observer on board the vessel. General Linear Model (GLM) with gamma was applied in this study to standardize the CPUE by year, quarter, season, and GT as fixed variables. The results showed that the variation of CPUE was mostly influenced by year and quarter, while season and fleet size (GT) showed less impact on the catch. In general, even though the catch trend declines during the observation years, the population of frigate tuna off the coast of western Sumatera (FMA 572) were considered sustainable.

STUDY ON MARKET PROCESS OF TUNA POLE-AND-LINE FISHERY IN EASTERN INDONESIA: A STUDY CASE IN SORONG, PAPUA BARAT PROVINCE Alexander M.A Khan; Lantun P. Dewanti; Izza M. Apriliani; Dedi Supriadi; Anta M. Nasution; Tim S. Gray; Aileen C. Mill; Nicholas V. C. Polunin
Indonesian Fisheries Research Journal Vol 26, No 1 (2020): (June) 2020
Publisher : Research Center for Fisheries

This research is a study of the way the small-scale pole-and-line tuna fishery in Sorong, Indonesia by examining official records of supply chains; key informant and fishers’ perceptions of marketing; and personal observations of landings and selling. The main finding of the study is that the pole-and-line fishers in Sorong have made strenuous efforts to escape the constrictions of middlemen by direct selling to processors.

STOCK STATUS OF BLUE SWIMMING CRAB (Portunus pelagicus) IN TANAH LAUT, SOUTH KALIMANTAN, AND ITS ADJACENT WATERS Ali Suman; Ap'idatul Hasanah; Andina Ramadhani Putri Pane; Pratiwi Lestari
Indonesian Fisheries Research Journal Vol 26, No 1 (2020): (June) 2020
Publisher : Research Center for Fisheries

A study on the stock status of blue swimming crab (Portunus pelagicus Linnaeus, 1758) was conducted in Tanah Laut, South Kalimantan waters, based on data collected in March to November 2017. The results showed that the growth pattern of blue swimming crab in Tanah Laut waters was negatively allometric and the sex ratio of males to females was 1.0 : 1.7. The chi-square test indicated that the total males and total females of the blue swimming crab was significantly different. It means that there was an imbalance in numbers between males and females. The estimated length at first capture (Lc) was 127.26 mm (carapace width; CW), smaller than the length at first maturity (Lm) at 133.24 mmCW. The growth parameter of blue swimming crab was 1.1year with a maximum carapace width (L) of 204.3 mmCW. The estimated instantaneous total mortality (Z) and natural mortality (M) were 3.04/year and 1.24/year, respectively. While fishing mortality (F) and exploitation rate (E) were 1.80/year and 0.59/year, respectively, the estimated spawning potential ratio (SPR) was 11.1 %. Therefore, the stock status was categorized as overfishing. In order to ensure the sustainability of the blue swimming crab, a precautionary approach,, such as reducing fishing effort by 18 % of the current situation, is strongly recommended to apply.

MAPPING THE POTENTIAL OF MARINE LIVING RESOURCES IN OUTER ISLAND OF SOUTHWEST MOLUCCAS Thomas Mahulette; Andarias Steward Samusamu
Indonesian Fisheries Research Journal Vol 26, No 1 (2020): (June) 2020
Publisher : Research Center for Fisheries

Southwest Moluccas or Maluku Barat Daya (MBD) District is one of the small islands located in the southeastern part of outer ring of Indonesian Archipelagic States. There are 17 sub districts covering 48 islands lie scattered in the region in which 31 islands among them were not inhabited. The island has a total population of about 72.300, while 4.069 (5.6 %) are fisherman. The annual fish production in 2017 was reported at 8,971 tons consists of: small pelagic fish (48%), demersal (37%), and large pelagic (15%). The coastal ecosystems include of coral reefs (595 Ha), mangrove (7.8 Ha), and sea grass (57 Ha). Seaweed harvesting and cultivation are ones that would be developed as an alternate livelihood for the community. The goal of this research was to describe a general situation of community livelihood that supported by the role of marine fisheries. The general description of fishing boat and fishing gear, annual production, distribution of fisherman and household around the islands were discussed. The fisheries category were small scale within about one day fishing. The environmental parameters such as monthly air temperature, rainfall and wind speed were plotted as supporting information. The population distribution and fisherman were also used as a base line parameter to elaborate the potential of marine living resource in the interested area. Those resources were described with existing small scale fisheries issues based on limited serial data that gathered through field observation. The secondary data such as Mollucas Southwest District (MBD) annual data from the Local Statistical Board (BPS) annual report were also used in this paper.

Page 1 of 1 | Total Record : 6

Filter by Year

2020 2020

Filter By Issues

All Issue Vol 31, No 2 (2025): December (2025) Vol 31, No 1 (2025): June (2025) Vol 30, No 2 (2024): (Desember) 2024 Vol 30, No 1 (2024): (June) 2024 Vol 29, No 2 (2023): (December 2023) Vol 29, No 1 (2023): (June) 2023 Vol 28, No 2 (2022): (December 2022) Vol 28, No 1 (2022): (June) 2022 Vol 27, No 2 (2021): (December) 2021 Vol 27, No 1 (2021): (June) 2021 Vol 26, No 2 (2020): (December) 2020 Vol 26, No 1 (2020): (June) 2020 Vol 25, No 2 (2019): (December) 2019 Vol 25, No 1 (2019): (June) 2019 Vol 24, No 2 (2018): (December) 2018 Vol 24, No 1 (2018): (June) 2018 Vol 23, No 2 (2017): (December, 2017) Vol 23, No 1 (2017): (June, 2017) Vol 22, No 2 (2016): (December, 2016) Vol 22, No 1 (2016): (June 2016) Vol 21, No 2 (2015): (December 2015) Vol 21, No 1 (2015): (June 2015) Vol 20, No 2 (2014): (December 2014) Vol 20, No 1 (2014): (June 2014) Vol 19, No 2 (2013): (December 2013) Vol 19, No 1 (2013): (June 2013) Vol 18, No 2 (2012): (December 2012) Vol 18, No 1 (2012): (June 2012) Vol 17, No 2 (2011): (December, 2011) Vol 17, No 1 (2011): (June 2011) Vol 16, No 2 (2010): (December, 2010) Vol 16, No 1 (2010): (June 2010) Vol 15, No 2 (2009): (December 2009) Vol 15, No 1 (2009): (June 2009) Vol 14, No 2 (2008): (December 2008) Vol 14, No 1 (2008): (June 2008) Vol 13, No 2 (2007): (December 2007) Vol 13, No 1 (2007): (June 2007) Vol 12, No 2 (2006): (December 2006) Vol 12, No 1 (2006): (June 2006) Vol 11, No 2 (2005): (December 2005) Vol 11, No 1 (2005): (June 2005) Vol 8, No 1 (2002): (2002) Vol 7, No 1 (2001): (2001) Vol 5, No 1 (1999): (1999) Vol 4, No 2 (1998): (1998) Vol 4, No 1 (1998): (1998) Vol 3, No 1 (1997): (1997) Vol 2, No 1 (1996): (1996) Vol 1, No 1 (1995): (1995) More Issue

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name
Arief Gunawan

Contact Email
ifrj.puslitbangkan@gmail.com

Phone
-

Journal Mail Official
ifrj.puslitbangkan@gmail.com

Editorial Address
-

Location
Kota adm. jakarta pusat,

Dki jakarta

INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Arief Gunawan

Contact Email ifrj.puslitbangkan@gmail.com

Phone -

Journal Mail Official ifrj.puslitbangkan@gmail.com

Editorial Address -

Location Kota adm. jakarta pusat, Dki jakarta INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Arief Gunawan

Contact Email
ifrj.puslitbangkan@gmail.com

Phone
-

Journal Mail Official
ifrj.puslitbangkan@gmail.com

Editorial Address
-

Location
Kota adm. jakarta pusat,

Dki jakarta

INDONESIA