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All Journal Journal of Marine and Aquatic Sciences Ecotrophic, Journal of Environmental Science BERITA BIOLOGI Jurnal Sumberdaya Akuatik Indopasifik Jurnal Perikanan Universitas Gadjah Mada Indonesian Fisheries Research Journal Bawal : Widya Riset Perikanan Tangkap Current Trends in Aquatic Science Journal of Marine Research and Technology Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) SEAS (Sustainable Environment Agricultural Science) Advances in Tropical Biodiversity and Environmental Sciences Metamorfosa: Journal of Biological Science Open Access DRIVERset
Nyoman Dati Pertami
Manajemen Sumberdaya Perairan, Fakultas Kelautan Dan Perikanan, Universitas Udayana
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Environmental Science Immunology & microbiology Medicine & Pharmacology Veterinary Other

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Journal : current trends in aquatic science

 1 
Penilaian Kondisi Teknik Penangkapan Ikan Lemuru (Sardinella lemuru) Berdasarkan Pendekatan EAFM di PPI Kedonganan, Bali Atanasius Jenarut; Nyoman Dati Pertami; Made Ayu Pratiwi
Current Trends in Aquatic Science Vol 5 No 1 (2022)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Ecosystem Approach to Fisheries Management (EAFM) is a management concept through an integrated and ecosystem-based approach. This study aimed to describe the condition of Bali Sardinella (Sardinella lemuru) at Kedonganan Fish Port and assess the management of this species based on the EAFM fishing technique domain. The assessment method refers to the methodology used by the National Working Group on EAFM, Directorate of Fish Resources, Ministry of Marine Affairs and Fisheries of Republic Indonesia, 2014. Data analysis used a Likert score based on ordinal 1, 2, 3 against indicators such as destructive/illegal fishing methods, modification of fishing gear, fishery capacity and fishing effort, fishing selectivity. Then, function suitability indicators and size of the ship is fishing boat crew certification adjusted to the status of Kedonganan fish port. Kedonganan fish port was a small- scale fishery. The scores obtained for each indicator was destructive/illegal fishing methods get a score of 2, modification of fishing gear get a score of 1, while indicators of fishery capacity and fishing effort and fishing selectivity get a score of 3. Lemuru fisheries management at Kedonganan fish port technical classified as good with the composite value of 69.
Aspek Biologi Reproduksi Ikan Tongkol Krai (Auxis thazard Laceoede, 1800) di Perairan Kedonganan, Badung Bali Ni Luh Kade Putri Purwaningsih; Nyoman Dati Pertami; Made Ayu Pratiwi
Current Trends in Aquatic Science Vol 5 No 1 (2022)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Frigate tuna is one type of small pelagic fish that belongs to the neritic tuna (15-30 mil). This study aimed to determine the reproductive biology aspects of frigate tuna (Auxis thazard). Reproductive biology aspects can be identified by observing the sex ratio, gonad maturity level gonadal maturity index, fecundity and the size of the first gonadal maturity. Sampling was carried out in January – March 2021 with a span of 14 days at the Kedonganan Fish Landing Base. Samples were obtained from local fishermen who do one day fishing. The total fish samples observed during the study were 161 males and 174 females (335 individuals). The sex ratio of male and female tuna is 1:0.9 and is stated to be in a balanced condition. Furthermore, the gonad maturity level, during the study was dominated by levels II and III, with the gonad maturity index of male fish ranging from 6.25 to 8.31 and female fish 6.26 to 8.91. The spawning period for tuna krai in Kedonganan waters occurs in January-March and the peak of spawning occurs in March. The fecundity of krai cobs ranged from 75107 to 750470 grains (average 201.463 grains). The size of the gonads at first maturity of male krai tuna was slower than that of female tuna (321 and 336 in mm).
Keanekaragaman dan Asosiasi Antarspesies Lamun di Perairan Pantai Samuh, Nusa Dua, Bali Ayu Padma Sari; Nyoman Dati Pertami; Made Ayu Pratiwi
Current Trends in Aquatic Science Vol 5 No 1 (2022)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Seagrass are flowering plants which have rhizomes, leaves and true roots. Most types of seagrass in Indonesia are found in Bali. One of the distributions of seagrass in Bali is Samuh Beach. This study aimed to determine the diversity of seagrass and association patterns between seagrass in Samuh Beach. This research conducted on January-February 2021. There were three observation stations, namely station I (fishing boat landing sites), station II (tourist activities), and station III (hotel area locations). The method used in this research was descriptive method Observation of seagrass samples using a 50×50 cm quadratic transect. Data analysis was carried out by calculating density, cover percentage, diversity index, uniformity index, dominance index, and associations between seagrass species. There were eight types of seagrass in Samuh Beach (Enhalus acoroides, Cymodocea rotundata, Cymodocea serrulata, Halodule pinifolia, Halodule uninervis, Halophila ovalis, Syringodium isoetifolium, and Thalassodendron ciliatum). The diversity of seagrass in Samuh Beach from observations at stations I and II in balanced conditions with a value of 1.42 and 1.52. Station III was a low category (0.79). There were 14 association pairs species of seagrass in Samuh Beach. The 12 association pairs were not related and 2 association pairs were related at the 5% level, (3.48, ?2 count> ?2 table). The related association pairs have positive association types, namely Syringodium isoetifolium with Halophila ovalis and negative associations, and Syringodium isoetifolium with Halodule pinifolia.
Pemberian Pakan Limbah Lemuru pada Pertumbuhan Ikan Cupang (Betta splendens) Indra Nur Cahyati; Nyoman Dati Pertami; Gde Raka Angga Kartika
Current Trends in Aquatic Science Vol 5 No 2 (2022)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Betta fish (Betta splendens) is an ornamental fish that is in great demand by the community from adults to children. This fish has features such as beautiful body color, unique fin shape, and easy to maintain in a low oxygen environment. The growth rate is still slow causing the maintenance period to be relatively long so that the profits obtained are relatively small. Feeding is one of the important factors in the growth optimization process. Feed that has high protein can be used as a solution in betta fish cultivation. The feed used in the study was lemuru waste (head and bones). This study was conducted to determine the growth of betta fish (Betta plendens) fed lemuru waste feed. The study was conducted with the control jar treatment, the treatment jar A using a dose of 3%, the treatment jar B using a dose of 6%, the treatment jar C using a dose of 9%. This research was conducted for 42 days. Betta fish growth in the form of absolute weight, absolute length, specific growth rate (SGR), survival rate (SR), feed conversion ratio (FCR). Water quality parameters measured in this study include temperature, pH and DO. The results of the ANOVA study showed that survival had no significant effect on fish growth, while absolute weight, absolute length, SGR and feed conversion ratio had a significant effect on the growth of betta fish. The water quality parameters measured included temperature ranging from 27.20 to 27.69 0C, DO with a range of 3.00-3.03mg/L and a pH of 6.60-6.68.
Pertumbuhan Ikan Tongkol Lisong (Auxis rochei Risso, 1810) di Perairan Kedonganan, Bali Ghina Nafis Rahmatullah; Nyoman Dati Pertami; Made Ayu Pratiwi
Current Trends in Aquatic Science Vol 5 No 2 (2022)
Publisher : Program Studi Manajemen Sumberdaya Perairan, Fakultas Kelautan dan Perikanan, Universitas Udayana

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Bullet tuna (Auxis rochei) is a type of pelagic fish that has important economic value and is a source of livelihood for fishermen in the waters of Kedonganan, Badung, Bali. This study aims to determine the growth of bullet tuna (Auxis rochei) by analyzing the length frequency distribution, growth patterns, condition factors, age groups, and growth parameters. Sampling of bullet tuna was carried out from January to March 2021, as many as 6 times sampling with a span of once every 14 days. The total samples of bullet tuna obtained were 638 individuals. The distribution of the length distribution of bullet tuna is between 268-376 mm. The results showed that the growth pattern of male and female bullet tuna was negative allometric which indicated that the fish's length increased faster than its weight gain. The condition of bullet tuna in Kedonganan waters based on the results of the study showed that bullet tuna were in a less good condition. The value of the condition factor of the female bullet tuna decreased from January to March, while the condition factor of the male bullet tuna decreased only in February. There was a shift in the age group from observations 1 to 5 in the age group to the right, in contrast to observations from 5 to 6 there was no shift in age groups. The growth coefficient (K) of bullet tuna is 0.57 per year, where the asymptotic length is 387.07 mm and the theoretical age of fish at length 0 is -0.854. Based on the parameters of the growth coefficient, it can be seen that the annual growth of bullet tuna in Kedonganan waters is not fast and not large.
Co-Authors Angel Maria Arief Arief Wujdi Ario Damar Atanasius Jenarut Ayu Padma Sari Ayu Putu Wiweka Krisna Dewi Devi Ulinuha Farhan Danu Fauzan Franceska Kendra Rossa S Gabrielle Aisya Gde Raka Angga Kartika Ghina Nafis Rahmatullah I Ketut Wija Negara I Nyoman Y Parawangsa I Nyoman Yoga Parawangsa I Nyoman Yoga Parawangsa I Nyoman Yoga Parawangsa I Nyoman Yoga Parawangsa I Nyoman Yoga Parawangsa I Wayan Arthana I Wayan Restu Nuarsa I.W. Nurjaya Ima Yudha Perwira Indra Nur Cahyati Julian Ichsana Argeswara Kartika, I Wayan Darya M.F. Rahardjo M.F. Rahardjo Made Ayu Pratiwi Made Bayu Khrisna Pramana Muhammad Bisma Ni Luh Gede Rai Ayu Saraswati Ni Luh Kade Putri Purwaningsih Ni Made Ernawati, Ni Made Ni Made Sita Aditya Putri Ni Made Sita Aditya Putri Prawira A. R. P Tampubolon Prawira A. R. P. Tampubolon Prawira A.R.P. Tampubolon Prawira ARP Tampubolon Prawira Atmaja Rintar Pandapotan Tampubolon Putra, I Nyoman Giri Putu Tegar Wiguna Putra Riska Purwanto Shintani Asri Tinambunan Sinar Jayadi Susumu Kanno Winni Anugrah Hani