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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 300 Documents
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Hot Spots Analysis of Fishing Vessels in Anambas Islands 2014 - 2020 Laia, Dominikus Yoeli Wilson
Indonesian Fisheries Research Journal Vol 29, No 1 (2023): (June) 2023
Publisher : Jakarta Technical University of Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ifrj.29.1.2023.11-20

Abstract

The Anambas Islands is one of the regencies in the administrative area of the Riau Islands Province. The sea waters of the Anambas Islands are one of the regions that are strategic in Indonesia because they are located in the South China Sea and bordered by Malaysia, Singapore, Vietnam, and Thailand. Understanding the location of hot spots of fishing activities in this area is very useful for knowing fishing areas as the basis for fisheries management, and potential fish stocks and distributions estimation. This study aims to determine the distribution of fishing vessels in the Anambas Islands, and the distribution of hot spots of fishing vessel locations in the Anambas Islands from 2014 to 2020. The method used is Optimized Hot Spot Analysis which runs the Hot Spot Analysis algorithm by calculating Getis-Ord Gi* statistics on each pixel of the fishing vessels detection image. The study found that the Tokongnanas hot spots cluster was a cluster that consistently appeared from 2014 to 2020. The Mubur, SW Munjan, E Munjan, S Lingai, and Mengkait hot spot clusters were found relatively new. The increase in the number of fishing boats detected in those new hot spot clusters is thought due to the increasing number of squid fishing gear in the area.
REPRODUCTIVE PERFORMANCE OF WILD STRAINS OF Clarias gariepinus BROODSTOCKS FROM NORTH-EAST NIGERIA Eze, Felix
Indonesian Fisheries Research Journal Vol 30, No 1 (2024): (June) 2024
Publisher : Jakarta Technical University of Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ifrj.30.1.2024.%p

Abstract

Fish seed production of Clarias gariepinus has been successfully been carried out in Nigeria. Despite the success, most of the strains used in aquaculture have suffered from inbreeding and its consequences and there still exist a wide gap between fish seed demand and supply, this therefore necessitate the need to increase research.  This study focused on intra-specific hybridization among and between wild Clarias gariepinus from four different lakes viz., lake Alau in Borno state, lake Dadin Kowa in Gombe state, lake Maladumba in Bauchi state and lake Mayo Ranewo in Taraba state in the North-East of Nigeria in other to evaluate their reproductive performances. Twenty pairs of live wild gravid broodstocks of C. gariepinus with a mean total length of 47.9±1.08cm and a mean total weight of 951.75±16.55g were randomly collected from each lake. The fish were conditioned, fed and spawned in the Hatchery complex, Department of Fisheries, University of Maiduguri, Nigeria. The broodstocks were mated in pure parental and reciprocal crosses generating sixteen mating combinations (generic crosses) duplicated in complete blocked  randomized design. Reproductive performance parameters such as fecundity, fertilization rate, hatching rate, and survival were monitored and the data collected were analyzed using Analysis of Variance (ANOVA) at p<0.05 significant level. The result revealed that the mean highest fecundity (66208±120.12g) was recorded  for female broodstocks collected from Lake Mayo Ranewo in Taraba state, crosses between Bauchi♀ and Taraba♂ had the highest values of fertilization rate (95.50±9.50%), hatching rate (93.28±2.00%) and survival rate (88.16±2.50%). Results clearly indicated that reproductive performances varied significantly among and between the pure lines and their reciprocal crosses. Water quality parameters including ammonia (mg/L), pH, water temperature (°C) and dissolved oxygen (mg/L) fell within the recommended range for the culture of fresh water fish. For better reproductive performance of wild strains of Clarias gariepinus, in the North-East of Nigeria, crosses should be encouraged between broodstocks from Bauchi and Taraba.
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.
Intraspecific Genetic Variation of Five Wild Indonesian Striped Snakehead (Channa striata (Bloch, 1793)) Populations Assessed Through 16S rRNA Sequences Suryani, Tuty Ari; Hastiwi, Titik Tri; Fitriani, Shentarya; Agiestina, Putri; Fajar, Ibnu; Aji, Katon Waskito
Indonesian Fisheries Research Journal Vol 29, No 1 (2023): (June) 2023
Publisher : Jakarta Technical University of Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ifrj.29.1.2023.%p

Abstract

The striped snakehead (Channa striata) belongs to the order Perciformes, suborder Channoidei, and the family Channidae. This fish is native to Sumatra, Java, and Kalimantan, but introduced to Sulawesi and Papua. Channa striata have potential as a food source, and pharmacological agent. However, the study on the genetic variation of snakehead fish in Indonesia is currently limited to specific areas, thus the genetic data obtained is insufficient. Therefore, the aim of this study was to examine the intraspecific genetic variation of the striped snakehead from five different locations in Indonesia using the 16S mitochondrial gene as a genetic marker. The PCR method was conducted with two primers, 16Sar and 16Sbr. The data obtained were then analyzed using DNASTAR, BLAST, Mesquite, MEGAX, BEAST, DnaSP, and NETWORK. The result revealed that all striped snakeheads investigated have 98.85-99.51% similarity to C. striata from the GenBank. The mtDNA 16S sequences generated 5 haplotypes with 5 variable sites and 4 parsimony informative sites. The mean of haplotype diversity and nucleotide diversity were 0.706 ± 0.088 and 0.00325 ± 0.00052 respectively with genetic divergence ranging from 0% to 0.73%. The phylogenetic tree revealed two distinct clades which were supported by a bootstrap value of 100% (NJ and ML), as well as a posterior probability value of 1.00 (BI). This finding suggests that there is intraspecific genetic variation of wild striped snakehead populations in Indonesia, with two distinct groups consisting of the western part of Indonesia (Sumatera) and the central to the eastern part of Indonesia (Kalimantan, West Nusa Tenggara, and Papua). This study will be helpful in efforts to conserve and cultivate the striped snakehead through breeding programs in Indonesia.
MISLABELING OF JUVENILE TENUALOSA SPP. AS GUDUSIA CHAPRA IN THE FISH MARKETS AND RIVERS OF BANGLADESH Sanzida Afrin; Mahmuda Begum; Mehrab Chowdhury; Nahid Sultana; Shilpi Saha; Anirban Sarker; Mohammad A Baki
Indonesian Fisheries Research Journal Vol 30, No 1 (2024): (June) 2024
Publisher : Jakarta Technical University of Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ifrj.30.1.2024.%p

Abstract

Juveniles ilish, Tenualosa spp. Fowler, 1934 named Jhatka mislabeling is a documented problem that has significant effects on consumers’ demand, resource limitation, and complex supply chain. When jhatka is sold as chapila then its correct scientific/accepted name, jhatka fake permits unlawfully caught species entering the market. The result of fraudulent activity included consumers’ losses, illegal harvesting, and more ilish resource degradation. It is vital that these fraudulent activities should be defined. This paper examines the mislabeling of ilish at different stages such as harvesting, market, and consumers level. Both morphomeristic and molecular analyses were used to identify the fishes. The samples were collected from different types of markets and rivers. Mislabeling at different stages of the supply chain including illegal harvesting of jhatka has been identified. Circulating mislabeling records could also encourage law-enforcement agencies, fishermen, sellers, and consumers to more closely assess.
POTENTIAL OF Spirulina sp. FOR REMEDIATING POLLUTANTS IN AQUACULTURE WASTEWATER AND PRODUCING PHYCOCYANIN Dewi, Resti Nurmala
Indonesian Fisheries Research Journal Vol 30, No 1 (2024): (June) 2024
Publisher : Jakarta Technical University of Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ifrj.30.1.2024.%p

Abstract

The sustainability of aquaculture wastewater treatment is challenging because it has a negative impact on the ecosystem if directly discharges to the environment. Aquaculture wastewater consists of high pollutants loading such as ammonia, phosphor, nitrate, and chemical oxygen demand. To offset the downsides of aquaculture effluent, effective solutions are required. Spirulina sp. is as microalgae that convert nutrients in the wastewater and dissolve carbon into microbial biomass with value such as phycocyanin which can be employed as food, cosmetics, feed, and pharmacy feedstock. The effects of light intensity (6,000 - 10,000 lux) and urea addition (20-100 ppm) on biomass production, COD reduction, and phycocyanin yield were investigated in this study. For 10 days, Spirulina sp. was grown in a batch reactor at 25-27°C with a ratio of 30% inoculum and 70% wastewater under continuous aeration. Spirulina sp. produced the most biomass at 8,000 lux with the addition of 60 ppm of urea accounting for 0.71±0.14 g/L (P > 0.05). Meanwhile, the maximum phycocyanin concentration was 4.21±0.132% at 7,000 lux and 80 ppm urea (P > 0.05) with 96.51% of chemical oxygen demand reduction (P < 0.05). The outcomes of this study highlight the potential of aquaculture effluent to produce valuable microalgal biomass and phycocyanin, which can be used to generate lucrative products.
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.
POPULATION DYNAMICS OF THE GRAY EEL CATFISH Plotosus canius FROM PORT DICKSON, MALAYSIA Usman, Binta Isyaku; Moruf, Rasheed Olatunji; Amin, S. M. Nurul; Arshad, Aziz
Indonesian Fisheries Research Journal Vol 30, No 1 (2024): (June) 2024
Publisher : Jakarta Technical University of Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ifrj.30.1.2024.%p

Abstract

Given the scarcity of information suitable for stock assessments of the Plotosidae, the study on growth and population dynamics of the Gray Eel Catfish Plotosus canius from the coastal waters of Port Dickson, Peninsular Malaysia was carried between January and December, 2021 and estimated using the ELEFAN I routine in FiSAT software. Estimated von Bertalanffy growth parameters were asymptotic length (L∞) = 67.20 cm, growth coefficient (K) = 0.95 yr-1, Predicted extreme length (Lmax) = 63.54, and growth performance index (φ’) = 3.63. The estimated total mortality (Z) value was 2.73 yr-1 during the study period. Natural mortality (M) and fishing mortality (F) were estimated at 1.31 yr-1 and 1.42 yr-1 respectively. The value of exploitation rate (E) obtained for P. canius was 0.48. Two major recruitment events were observed per year and the recruitment pattern was continuous. The findings from the analyses suggested that the P. canius fishery in the study area is slightly below the optimum level of exploitation. However, more research is suggested in such direction to corroborate the present findings as management for this fish is indispensable for maximum sustainable yield. The length-structured virtual population analysis revealed that P. canius fishery of Port Dickson experiences growth overfishing as opposed to recruitment overfishing, with fishing mortality being higher than natural mortality (F>M). Based on these findings, small-sized mesh fishing net and reduced fishing efforts (legal and illicit) must be enforced in order to maintain the potential of this commercially significant species in Port Dickson, Malaysia
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.  
BIOLOGICAL ASPECTS OF PANULIRUS HOMARUS IN PANGANDARAN WATERS, PANGANDARAN DISTRICT Rahman, Taufik; Zahidah, Zahidah; Dewanti, Lantun Paradhita; Putra, Pringgo Kusuma Dwi Noor Yadi
Indonesian Fisheries Research Journal Vol 30, No 1 (2024): (June) 2024
Publisher : Jakarta Technical University of Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Potensi perikanan di Kabupaten Pangandaran cukup besar, terdiri dari ikan pelagis besar, ikan pelagis kecil, ikan demersal dan krustasea, namun belum dimanfaatkan secara optimal. Penelitian ini bertujuan untuk menganalisis aspek biologi panulirus homarus yaitu komposisi spesies, rasio jenis kelamin, frekuensi sebaran panjang karapas, dan hubungan panjang dan berat yang ditangkap di perairan Pangandaran. Informasi mengenai aspek biologi lobster penting dilakukan agar stok lobster di alam dapat dimanfaatkan secara optimal. Sampel Panulirus homarus diperoleh dari pengepul lokal di Pangkalan Pendaratan Ikan Cikidang, Tempat Pelelangan Ikan Bojongsalawe, dan Tempat Pelelangan Ikan Madasari pada bulan Oktober sampai November 2021. Analisis data pada penelitian ini menggunakan software Microsoft Excel dan ELEFAN I pada program FiSAT II untuk mengetahui persamaan pertumbuhan lobster. Hasil penelitian menunjukkan terdapat enam jenis lobster yang ditangkap di Pangandaran, yaitu panulirus homarus, panulirus ornatus, panulirus penicillatus, panulirus versicolor, panulirus longipes, dan panulirus polyphaus. Jenis kelamin lobster pasir jantan sebanyak 327 (47%), sedangkan jenis kelamin lobster pasir betina sebanyak 366 (53%).

Page 29 of 30 | Total Record : 300

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