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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 8 Documents
 1 
Search results for , issue "Vol. 12 No. 2 (2024): March 2024" : 8 Documents clear
PURIFICATION OF KROSOK SALT (CRUDE SOLAR SALT) THROUGH RECRYSTALLIZATION METHOD WITH ADDITION OF DIFFERENT CONCENTRATIONS OF SLAKED LIME (Ca(OH2)) Spanton, Perdana Ixbal; Anggraeni, Dewi
AQUASAINS Vol. 12 No. 2 (2024): March 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i2.p1499-1505

Abstract

Purifying krosok salt (crude solar salt) is an essential step in the food and pharmaceutical industry to ensure product quality. One of the methods used for the purification of krosok salt in this study was recrystallization, involving the addition of slaked lime (Ca(OH)2) at various concentrations. Recrystallization entails dissolving salt crystals in water, followed by filtration to separate impurities from the clean salt solution. This purified salt solution is then heated to produce purer salt crystals. The aim of this study was to analyze the quality content of salt in the yielded pure salt. The significance of this research lies in its contribution of new knowledge regarding simple traditional salt processing methods, which can yield higher-quality salt with significant economic value. In this process, Ca(OH)2 was added at concentrations of 0.1%, 0.08%, and 0.06% to assess its effect on krosok salt purification. The research methodology employed experimental methods. The study's results indicated that the NaCl level test yielded an average value of 96.7% with a C concentration of 0.06%. The highest avera-ge value of 97.686% for the degree of whiteness was observed at a C concentration of 0.1%. Magnesium content averaged 0.07% at a C concentration of 0.06%, while calcium content averaged 0.058% at the same concentration. Keywords: Krosok salt, recrystallization, betel lime, salt quality.
THE EFFECT OF ADDITIONAL DOSES OF CURCUMA FLOUR (Curcuma xanthorrhiza Roxb) IN FEED ON THE GROWTH OF GOURAMY (Osphronemus gouramy) FRY Wardani, Rizka Maulina; Herman, Roffi Grandiosa; Haetami, Kiki; Iskandar, Iskandar
AQUASAINS Vol. 12 No. 2 (2024): March 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i2.p1462-1473

Abstract

The purpose of this study was to determine the optimum content of the addition of curcuma flour with different doses to the feed on the growth of gourami fry (Osphronemus gouramy). The method used in this study was a completely randomized design (CRD) experimental method, which consisted of 5 treatments with 3 replications. The treatment used was treatment (A) without giving curcuma flour (control), (B) giving curcuma flour at 2.5%/kg feed, (C) giving curcuma flour at 5%/kg feed, (D) giving curcuma flour ginger at 7.5%/kg feed, (E) giving curcuma flour at 10%/kg feed. The results of analysis of variance (Anova) showed that the addition of the flour at different doses had a significant effect (P<0.05) on the growth of gouramy fish fry. The results showed that the addition of curcuma flour at 7.5%/kg of feed gave the best results with the highest absolute weight growth of 15.11 ± 0,42 g, the highest absolute length growth of 3.92 ± 0,42 cm, the feed conversion ratio of 1.95 ± 0.11, and survival of 100%. Keywords: Gouramy fish, curcuma flour, growth, feed.
THE EFFECT OF LAMTORO LEAF FLOUR (Leucaena leucocephala) IN FEED ON THE GROWTH OF TILAPIA (Oreochromis niloticus) Mukaromah, Fadilatul; Haetami, Kiki; Andhikawati, Aulia; Grandiosa, Roffi
AQUASAINS Vol. 12 No. 2 (2024): March 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i2.p1441-1450

Abstract

Tilapia is favored for its rapid growth and adaptability to diverse aquatic environments, making it a widely cultivated fish. In fish farming activities, feed provides the largest contribution to the total production cost. So that farmers must use alternative feed to reduce feed costs. One alternative feed for tilapia that is easy to obtain, affordable and sustainably available is lamtoro leaves. The aim of this research was to determine the effect of adding lamtoro leaf flour to feed at different concentrations on the growth of tilapia (O. niloticus). The average weight of tilapia at the beginning of the study was 5,7 grams. This research was conducted for 40 days starting in May until June 2023, taking place in Kertayasa Village, Cijulang District, Pangandaran Regency. The method used in this research was an experimental method using a completely randomized design (CRD) with 4 treatments and 3 replications, namely treatment A: 100% commercial feed (control), treatment B: commercial feed + 5% lamtoro leaf flour, treatment C: commercial feed + 10% lamtoro leaf meal, and treatment D: commercial feed + 15% lamtoro leaf meal. Parameters observed included daily growth rate (SGR), absolute length growth, and water quality. The results indicated a significant effect (P<0.05) on the daily growth rate (SGR) by incorporating lamtoro leaf flour into the feed. The highest treatment, observed in treatment C at 50%/day, resulted in the maximum absolute length growth of 4.63 cm. The water quality parameters during the study were in the proper range for the life of tilapia (O. niloticus).  Providing lamtoro leaf flour in feed does not have a negative effect on growth and water quality. Keywords: Tilapia fish, lamtoro leaf meal, growth.
THE LENGTH-WEIGHT RELATIONSHIP OF Butis sp. IN THE TAMBUN RIVER, TOLITOLI DISTRICT, CENTRAL SULAWESI Laheng, Suardi; Putri, Dwi Utami; Febriani, Febriani
AQUASAINS Vol. 12 No. 2 (2024): March 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i2.p1435-1440

Abstract

Butis sp. is a type of fish that possesses physical characteristics such as small scales and a yellowish belly. Information regarding the existence and growth of this type of fish is still limited to the Tambun River, Tolitoli Regency. Analyzing the length and weight of the fish is one of the methods used to determine the biological conditions and fish stocks, there by facilitating the management of biodiversity sustainability. The aim of this study was to determine the relationship between the length and weight of Butis sp. in order to understand fish growth patterns. This research was carried out for 2 months in Sungai Tambun, Tolitoli Regency, Central Sulawesi Province. The location for collecting sample were   divided into 3 stations. The test parameters observed were the relationship between length and weight and habitat conditions. The research results of Butis sp. in Sungai Tambun, Tolitoli Regency showed a positive allometric growth pattern (b= 3,25). The water quality in the Tambun River still supports the growth of Butis sp. (temperature 25-28oC, pH 5,5-8,5).Keywords : Biodiversity, fish biology, growth, positive allometrics
INTERACTION OF STOCKING DENSITY AND DIFFERENT PLANT TYPES IN CULTIVATING SANGKURIANG CATFISH (Clarias gariepinus var. Sangkuriang) AQUAPONIC TECHNOLOGY Dg. Masese, Risa Apriana A.; Ndobe, Samliok; Widiastuti, Irawati Mei
AQUASAINS Vol. 12 No. 2 (2024): March 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i2.p1451-1461

Abstract

This study investigated the impact of varying stocking densities and plant species interactions within an aquaponic framework. Conducted over a 45-day period (August-October 2023) at the Experimental Farm of Tadulako University, Palu, Central Sulawesi, the research utilized juvenile Sangkuriang catfish (Clarias gariepinus var. Sangkuriang) as the focal organism. Employing a factorial design, with stocking densities 12, 20, and 28 fish per 40 liters of water and three distinct plant species (Ipomoea aquatica, Brassica rapa subsp. chinensis, and Lactuca sativa), the study aimed to elucidate optimal growth conditions. Key findings revealed that the stocking density of 12 fish per 40 liters of water, coupled with pakchoi plants, yielded the most significant growth enhancements. Specifically, this configuration demonstrated a specific growth rate of 6.66±0.7% and absolute weight growth of 14.06±1.0, along with a specific length growth rate of 2.10±0.6% and absolute length growth of 4.48±0.6%. Notably, water quality parameters remained within acceptable limits across all treatments, ensuring an environment conducive to catfish growth. In conclusion, this research underscores the critical role of stocking density and plant selection in optimizing aquaponic systems. The findings offer valuable insights into enhancing both fish and plant growth dynamics within integrated aquaponic frameworks. Keywords: Catfish farming, aquaponics, growth rate, survival rate.
THE CRUSTACEAN'S EXPORT-IMPORT MAPPING OF FISH QUARANTINE AND INSPECTION AGENCY (FQIA) JAKARTA I ON 2021-2022 PERIOD Muhaemin, Moh; Yulanda, Meisi; Ruhenda, Uhen; Efendi, Eko
AQUASAINS Vol. 12 No. 2 (2024): March 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i2.p1484-1498

Abstract

Indonesia's crustacean has great potential fisheries business. The depletion of fisheries natural resources needs to be solved to avoid overfishing, especially for crustaceans. The study aim was to analyze crustacean diversity and mapping its products on export and import markets, as well as to analyze the sustainability of crustacean export-import across Indonesia. The study was conducted at FQIA Jakarta I on January until February 2023. The descriptive analysis method was used. The results of the study showed that Indonesia's fisheries export were higher than import activities. On crustacean exports, the highest destination country for lobster (Panulirus sp.) is Cina, the highest destination country for crab (Portunus pelagicus) is the USA, the highest destination country for mud crab (Scylla serrata) is Cina, and the highest destination countries for mantis shrimp (Squilla mantis) are Hongkong and Cina. Meanwhile, for imported crustaceans, snow crab (Chionoecetes opilio) came from Japan, and American lobster (Homarus americanus) came from Canada and USA. The overfishing has not occurred as illustrated for fishing grounds in Indonesia. It indicated by the average of annual catch value which has not higher than MSY catch. Keywords: Crustacea, fish market, fishing ground, annual catch, sustainable.
SENSORY CHARACTERISTICS OF SHEREDDED SPICED FISH FORMULATIONS WITH DIFFERENT PROCESSING TREATMENTS Sartika, Dewi; Akhyar, Gusri; Julita, Sela
AQUASAINS Vol. 12 No. 2 (2024): March 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i2.p1474-1483

Abstract

Tilapia (Oreochromis niloticus) is a type of fish cultivated by local people in Lake Ranau, West Lampung Regency, Lampung Province. Fish is easily damaged by chemical and microbiological processes, so proper handling and processing is needed to extend its shelf life. Shredded spiced fish is an innovative diversification of shredded fish product made from tilapia fish ori-ginating from Lake Ranau with added of multi-spices. Multi-spices are known to have high antioxidant content, so they can improve the quality and develop the taste of shredded spiced fish product.  The multi spices seasoning formulation and process stages greatly influence the characteristics of the shredded produced.  This research aims to study the formulation and processing treatment of the sensory characteristics of the best shredded spices fish. Determining the best formulation and processing treatment was determined using the sensory test method, namely a scoring test involving 30 panelists, then the data was processed using Microsoft Excel 2021. The result showed that the shredded spiced fish product with sample code 212 (without stir-frying) produced the best characteristics with a texture parameter value of 3.85; fragrance 4.05; colors 4.85; and tasted 4 with a total score of 16.75. Keywords: Multi spices, organoleptic, process stages, sheredded fish, tilapia.
ANALYSIS OF THE SUSTAINABILITY OF THE UTILIZATION OF THREADFIN BREAM (Nemipterus sp.) LANDED AT LEMPASING FISHING PORT, BANDAR LAMPUNG Putriani, Rizha Bery; Lahay, Almira Fardani; Putri, Septi Malidda Eka; Julian, David
AQUASAINS Vol. 12 No. 2 (2024): March 2024
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v12i2.p1506-1519

Abstract

The waters of Lampung Bay have high potential resources for threadfin bream (Nemipterus sp.). This fish has significant economic value as a diverse food ingredient. However, currently, the body size of threadfin bream found tends to be uniform and even smaller due to continuous overfishing. The research was conducted to assess the status of utilization of threadfin bream resources in the waters of Lampung Bay based on five important aspects, namely ecology, economics, social, technological and institutional. The research was carried out in May 2023 at Lempasing Fishing Port, Bandar Lampung City, with data collection through observation and interviews. Data analysis used the multi-dimensional scaling (MDS) method using the Rapfish (rapid appraisal for fisheries) application to evaluate the sustainability of the use of threadfin bream. The results of the analysis show that the sustainability index value for the use of threadfin bream in the waters of Lampung Bay is as follows: ecological dimension 48.59; economic dimension 36.80; social dimension 75.00; technology dimension 49.91; and ethical dimension 61.64. Based on these results, it can be concluded that the use of threadfin bream in the waters of Lampung Bay is quite sustainable, with an average index value of 54.39.Keywords: Ecological dimension, multi-dimensional scaling, Rapfish, sustainability index.

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