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INDONESIA
Indonesian Fisheries Research Journal
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 4 Documents
 1 
Search results for , issue "Vol 29, No 2 (2023): (December 2023)" : 4 Documents clear
ASSESSMENT OF SEA CUCUMBER FISHERY IN THE MULLAITIVU COASTAL WATERS IN NORTH-EAST, SRI LANKA Dalpathadu, Kasun Randika; Haputhantri, Sujeewa Sisira Kumara; Kitakado, Toshihide
Indonesian Fisheries Research Journal Vol 29, No 2 (2023): (December 2023)
Publisher : Jakarta Technical University of Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ifrj.29.2.2023.%p

Abstract

The sea cucumber is one of the key export-oriented fishery resources in Sri Lanka. There are some evidences for overexploitation of most of the sea cucumber species in the shallow coastal waters. The present study was undertaken with the aim of understanding the status of the sea cucumber fishery in the Mullaitivu district in the North-east Coast of Sri Lanka and to carry out a stock assessment on the key sea cucumber species presently harvested from this area. To achieve this objective, the sea cucumber fishing season in 2019 (March – August) was based and the personal logbook records of the 12 sea cucumber collectors were used as the primary data source. Two species, Bohadschia vitiensis and Holothuria spinifera were dominant contributing 83 % and 16 % to the total catch respectively. The average Catch Per unit Effort (CPUE) during the fishing season in 2019 was 178±224 individuals boat-1day-1 and a sharp decline in the average monthly CPUE of both species was observed towards the end of the fishing season. The stock of the B. vitiensis in the Mullaitivu fishing ground was assessed using the depletion method. The initial stock size of B. vitiensis at the onset of the fishing season was estimated at 432,549 individuals and more than 90 % of the initial stock had been fished by the end of the fishing season. The study revealed that the stock of B. vitiensis along with other recorded species in the Mullaitivu waters is at a high risk at present. 
PRODUCTIVITY AND DEVELOPMENT STRATEGY OF SEAWEED ((Kappaphycus alvarezii) ) IN BANTEN BAY WHICH IS VULNERABLE TO ENVIRONMENTAL CHANGE Farkan, Mochammad; Dewi, Priyantini; Samsu Harapan, Sri Budiani; Suharyadi, Suharyadi; Novriadi, Romi; Awaludin, Asep
Indonesian Fisheries Research Journal Vol 29, No 2 (2023): (December 2023)
Publisher : Jakarta Technical University of Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ifrj.29.2.2023.%p

Abstract

Seaweeds is a fishery commodity that has economic value and generates quite a large amount of foreign exchange. However, in its development, production fluctuated and not all marine locations could maintain seaweed throughout the year. Relatively low production costs and a market that is available at any time. The purpose of this study was to analyze the productivity and development strategies for Euchema cotonii grass cultivation in Banten Bay. Changes in spatial planning, land conversion, industrial activities in the western and eastern parts, waste disposal through the river in this section and the excavation of sand mines have made the bay very vulnerable to the environment. The location of this activity is the coast and waters around the island of  Banten Bay. The method of data collection is the measurement of water quality parameters in the field, surveys, interviews, discussions and limited participation in seaweed cultivation locations. The data analysis method is descriptive and uses the SWOT tool (Strength, Weakness, Opportunities and Threats) and uses SPSS version 25, excel and to assess sustainability using raphfish. Research results show. Water quality conditions are in accordance with the growth of seaweed. Production starting in 1987 fluctuated and conditions were stagnant in the last 3 years. The recommended strategy for increasing production is increasing grass productivity through expanding areas that have mapped potential and land suitability with applied technology, competent human resources, using superior seeds and reducing environmental pollution by industry and sand mining. KEYWORDS: Seaweed; Banten Bay; Environmental pollution; Serang.
COMPARISON OF MORPHOLOGY AND GROWTH ASPECTS OF TIGERTOOTH CROAKER (OTOLITHES RUBER BLOCH & SCHNEIDER, 1801) IN THE PERSIAN GULF AND OMAN SEA Rahnama, Behzad; Raeisi, Hadi; Radfar, Fateme; Menezes, Rafael; afraei bandpei, mohammad ali; Francini-Filho, Ronaldo; Rosa, Ricardo
Indonesian Fisheries Research Journal Vol 29, No 2 (2023): (December 2023)
Publisher : Jakarta Technical University of Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ifrj.29.2.2023.%p

Abstract

Morphological and growth aspects of Tigertooth croaker (Otolithes ruber) were examined in order to assess differences between stocks of this species in the Persian Gulf and Oman Sea. The minimum and maximum total lengths of this species were 17.78 cm and 47.99 cm in the Oman Sea and 17.05 cm and 38.64 cm in the Persian Gulf respectively. Morphological measurements of fish (total length, standard length, weight) and otolith (length, width, weight, age) were compared by analysis in R software. The One-way ANOVA for each parameter showed significant differences between morphological characteristics (P<0.05). PCA analysis showed that all morphometric parameters have a high value (91.23%) for regional discrimination and the MANOVA test indicated that two areas based on comparison of all morphological characteristics have a significant difference with P≤0.05. For the Oman Sea, the LWR equation was (w= 0.00523TL, 3.1844) and for the Persian Gulf, it was (w= 0.001794TL, 3.5309). KDE showed that the Oman Sea has a larger age density than the Persian Gulf and there is a significant difference between regions (P<0.05). Our results suggest that the O. ruber from the Persian Gulf and Oman Sea are distinct biological stocks, and should be differently managed.
ICHTHYOFAUNAL DIVERSITY AND CAPTURE FISHERIES IN OVIA RIVER, EDO STATE, NIGERIA. OLOWO, Ukpamufo Cyril; EGUN, Nkonyeasua Kingsley; OMORUWOU, Precious E; OBOH, Ijeoma Patience
Indonesian Fisheries Research Journal Vol 29, No 2 (2023): (December 2023)
Publisher : Jakarta Technical University of Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ifrj.29.2.2023.%p

Abstract

The increasing reduction in the quantity and diversity of fish catch from freshwater bodies, has become a global concern due to its impacts on human nutrition, economy, culture and zoological spectrum of the aquatic ecosystem. This study ascertained the ichthyofauna composition and diversity of Ovia River, Edo State and its capacity to sustain capture fisheries.  Fish catch from April, 2021 to March 2022 showed that Ovia River is congenial for 26 fish species of commercial importance, belonging to 5 orders, 13 families, 19 genera and 26 species. This is indicative of a rich diversity with Mormyridae dominant with 7 species, Cichlidae with 6 species, Mochokidae and Characidae with 2 species each, Ariidae, Bagridae, Channidae, Cyprinidae, Hepsetidae, Malapterunidae, Notopteridae, Pantodontidae and Schilbeidae with 1 species each. Fish species abundance showed that Cichlidae was the highest 61 individuals (39.61%), while Ariidae and Hepsetidae with 1 individual each (0.65%) were the least. The dominance and abundance of the highly priced Mormyridae and Cichlidae species implies that the water body has the capacity to sustain artisanal fisheries activities. This study has provided useful data for fisheries management and ecological studies of inland freshwater resources in Nigeria.  

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