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INDONESIA
Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan
Published by Universitas Lampung
ISSN : 2301816X     EISSN : 25797638     DOI : -
Core Subject : Education,
Other
Arjuna Subject : -
Articles 5 Documents
 1 
Search results for , issue "Vol. 13 No. 1 (2024): November 2024" : 5 Documents clear
ANALYSIS OF THE TROPHIC STATUS OF THE BABON RIVER, SEMARANG Fauziyah, Dias Puteri; Haeruddin, Haeruddin; Rahman, Arif
Aqusains: Jurnal Ilmu Perikanan dan Sumberdaya Perairan Vol. 13 No. 1 (2024): November 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v13i1.p1589-1595

Abstract

The Babon River watershed, located in Semarang, Central Java, is an important resource for the local community in their daily activities. Effective river management is essential to maintain the surrounding ecosystem. This research aimed to provide information on the trophic status and water quality of the Babon River. Sampling was conducted in November 2021 and January 2022 using a purposive sampling method. The trophic state index (TSI) was used to assess water fertility, with measurements focusing on variables such as brightness, total phosphate, and chlorophyll-a. Additional parameters supporting water quality assessment included nitrate, dissolved oxygen (DO), pH, discharge, current velocity, and water temperature. The results indicated that the parameters measured were still within the standards for class II and III river water quality as outlined in Government Regulation (PP) No. 22 of 2021. Multiple linear regression analysis revealed non-simultaneous effects of nutrients (nitrate and total phosphate) on chlorophyll-a content, with a determination value of 21.3%. This suggests that low nutrient levels influence the presence of chlorophyll-a in the waters, while the remaining 78.7% of chlorophyll-a variability is attributed to other factors.Keywords: Babon River, chlorophyll-a, nitrate, trophic state index, total phosphate.
TASTE LEVEL OF FISH DRUMSTICK “DRAGON FEET” MADE FROM LARGE PELAGIC FISH MEAT Junianto, Junianto; Gunawan, Nesya Putri; Damayanti, Yohana; Wijayanto, Rahmat
Aqusains: Jurnal Ilmu Perikanan dan Sumberdaya Perairan Vol. 13 No. 1 (2024): November 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v13i1.p1605-1618

Abstract

The vast potential of Indonesia's seas makes fish a vital food source, contributing significantly to food availability in the country. Among the commonly caught species are large pelagic fish, such as tuna, skipjack tuna, and mackerel. To diversify processed fish products, large pelagic fish are transformed into innovative products, including "dragon's foot" products. This research aimed to identify the most suitable type of large pelagic fish meat for producing the most preferred dragon's foot product. The study employed an experimental method with three treatments based on the type of fish meat used: tuna, mackerel, and skipjack. The resulting dragon's foot products were evaluated for appearance, aroma, texture, and taste preferences by 15 semi-trained panelists. Statistical analysis was performed using the non-parametric Friedman test and paired comparison test, while the Bayes method was applied to determine the optimal treatment. The results revealed that the meat of large pelagic fish—specifically tuna, mackerel, and skipjack—serves as the primary ingredient in making dragon's foot products. Among these, the dragon's foot products made from tuna meat were the most favored by the panelists.Keywords: Bayes method, non-parametric analysis, product preference, sensory evaluation.
EFFECT OF MICROENCAPSULATED Lactobacillus sp. ON CATFISH (Pangasius hypophthalmus) INFECTED WITH Aeromonas sp. Kharima, Zhafira Putri; Mulyani, Yuniar; Iskandar, Iskandar; Herman, Roffi Grandiosa
Aqusains: Jurnal Ilmu Perikanan dan Sumberdaya Perairan Vol. 13 No. 1 (2024): November 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v13i1.p1575-1588

Abstract

The prevention of fish infections caused by Aeromonas sp. bacteria can be achieved using Lactobacillus sp. bacteria. This study aims to identify and analyse the effect of Lactobacillus sp. using the microencapsulation method to treat catfish infected with Aeromonas sp. The identification of Lactobacillus sp. bacteria was conducted through microbiological and molecular tests. After obtaining the test results, the research continued with the application of microencapsulation using the emulsion technique. The impact of this microencapsulation was evaluated on catfish through an experimental approach employing a completely randomised design (CRD), with 10 catfish tested in each experimental aquarium. The study included five treatments, designated as A, B, C, D, and E. Treatment A served as the control, without the administration of Lactobacillus. Treatment B involved the application of Lactobacillus without microencapsulation. Treatments C, D, and E utilised varying doses of Lactobacillus at 0.003, 0.005, and 0.007 g/L, respectively. Each treatment was conducted in triplicate. Microbiological and molecular testing identified encapsulated Lactobacillus sp., specifically Lactobacillus helveticus and Lactobacillus johnsonii. The results indicated that treatment D, comprising a dose of 0.005 g/L of Lactobacillus helveticus and Lactobacillus johnsonii, was the most effective in promoting the healing of catfish infected with Aeromonas hydrophila bacteria.Keywords: Completely randomized design, bacterial infection mitigation, probiotic bacteria, emulsion technique.
WATER QUALITY ASSESSMENT ON THE COAST OF DESA MUSI, KECAMATAN GEROKGAK, BALI Amelia, Jasmine Masyitha; Maharani, Made Dwipa Kusuma
Aqusains: Jurnal Ilmu Perikanan dan Sumberdaya Perairan Vol. 13 No. 1 (2024): November 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v13i1.p1596-1604

Abstract

The northern coast of Bali possesses significant natural resource potential, particularly in Desa Musi, Kecamatan Gerokgak, which serves as a site for fish and seaweed cultivation managed by the local communities. However, some of these aquaculture activities lack adequate wastewater management systems. This study aimed to evaluate the water quality along the coast of Desa Musi, Kecamatan Gerokgak, Bali. A quantitative descriptive approach was employed, with purposive sampling conducted at selected locations along the coastal area. The water quality parameters assessed included salinity, pH, temperature, phosphate, ammonia, lead, and cadmium concentrations. The findings revealed that the coastal waters of Desa Musi generally support marine biota. However, the concentrations of lead and cadmium exceed the threshold values stipulated by Kep-51/MenKLH/2004. These results underscore the need for regular water quality management and monitoring to ensure environmental sustainability and support the livelihoods of the local community.Keywords: Coastal ecosystems, environmental monitoring, heavy metals.
LENGTH-WEIGHT RELATIONSHIP OF Trichopodus pectoralis IN THE SPEECTRA (SPECIAL AREA FOR CONSERVATION AND FISH REFUGIA) OF PATRA TANI FLOODPLAIN, PALEMBANG Haikal, Muhammad Faaris; Suryati, Ni Komang; Julian, David
Aqusains: Jurnal Ilmu Perikanan dan Sumberdaya Perairan Vol. 13 No. 1 (2024): November 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v13i1.p1619-1631

Abstract

Floodplains are dynamic freshwater ecosystems characterized by significant ecological shifts between dry and rainy seasons. The snakeskin gourami (Trichopodus pectoralis), a resilient blackfish species, thrives in these extreme environments due to its specialized labyrinth breathing organ. However, its wild populations are declining, necessitating sustainable conservation strategies. This study evaluated the effectiveness of the special area for conservation and fish refugia (SPEECTRA) model, developed by BRPPUPP, in Patra Tani, Palembang. The SPEECTRA model leverages seasonal fish migration from rivers to floodplains during inundation, capturing fish in designated conservation ponds to facilitate spawning, protection, and production enhancement. Over a 30-day period at the Patra Tani Installation, purposive sampling was employed to collect T. pectoralis specimens. Growth patterns were analyzed using length-weight regression, and Fulton’s condition factor (Kn) was calculated. Results demonstrated that W=0.0108 L3.1076 with R2=0.9469. The growth pattern of the studied fish exhibited positive allometric characteristics, indicating that the population is likely in a favorable condition. This finding indicated the effectiveness of SPEECTRA as a fishery sanctuary, safeguarding key species such as T. pectoralis while mitigating anthropogenic pressures on aquatic ecosystems.Keywords: Aquatic organisms, sustainability, condition factor.

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