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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 6 Documents
 1 
Search results for , issue "Vol 8, No 2 (2020)" : 6 Documents clear
Niche Architecture of Thalassina anomala in the Mangrove Ecosystem of Tanjung Tiram Village South Konawe Regency - Southeast Sulawesi Muhammad Fajar Purnama; A. Ginong Pratikino; Abdullah Abdullah; La Ode Alirman Afu; Muhammad Trial Fiar Erawan
AQUASAINS Vol 8, No 2 (2020)
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (381.534 KB) | DOI: 10.23960/aqs.v8i2.p841-852

Abstract

Penelitian ini diharapkan mampu memberikan informasi ekologis Thalassina anomala terutama yang berkaitan dengan arsitektur relung T. anomala dan peranannya terhadap kehidupan (interaksi timbal balik) biota akuatik lainnya yang ada di ekosistem mangrove Desa Tanjung Tiram Kecamatan Moramo Utara Kabupaten Konawe Selatan - Sulawesi Tenggara. Penelitian ini dilaksanakan pada bulan Oktober-Desember 2019 bertempat di Desa Tanjung Tiram Kecamatan Moramo Utara Kabupaten Konawe Selatan. Penelitian ini bertujuan untuk mengetahui secara detail arsitektur gundukan T. anomala di ekosistem mangrove Desa Tanjung Tiram Kabupaten Konawe Selatan. Penentuan stasiun penelitian menggunakan metode purposive sampling atau penetapan stasiun berdasarkan habitat alami lobster lumpur (T. anomala) di alam yakni pada ekosistem mangrove. Pengamatan relung T. anomala dilakukan secara langsung menggunakan metode random sampling. Parameter utama yang diamati pada penelitian adalah arsitektur relung (niche) antara lain tinggi gundukan, diameter atas gundukan, diameter bawah gundukan, kedalaman liang, diameter liang, kemiringan gundukan, kemiringan liang dan arah liang. Hasil pengukuran arsitektur relung lobster lumpur dan parameter lingkungan di analisis nonparametrik menggunakan uji spearmen, demikian juga dengan hubungan antara diameter atas gundukan dan lebar karapas lobster lumpur (T. anomala). Pola distribusi T. anomala pada setiap stasiun memperlihatkan pola yang acak (random). Kepadatan lobster lumpur (mud lobster) tertinggi diperoleh pada stasiun 2 (substrat berlumpur) dengan jumlah 4,5 ind/m2 sedangkan kepadatan terendah (1,5 ind/m2) diperoleh pada stasiun 3 dengan substrat kombinasi (lumpur, pasir dan kerikil). Terdapat korelasi yang sangat signifikan atau signifikan positif antara diameter liang dan lebar karapas (carapace width)  dari T. anomala. 95% dari parameter arsitektur gundukan tersebut memiliki korelasi yang signifikan, artinya hanya terdapat satu parameter yang tidak memiliki korelasi signifikan yakni hubungan antara parameter kemiringan gundukan dengan kemiringan liang (P>0,05). Diantara parameter tersebut tinggi gundukan dengan diameter bawah gundukan memiliki korelasi yang sangat signifikan (0,005<0,01) dan tinggi gundukan dengan kedalaman liang (0,026<0,05).Kata Kunci : Mounds Architecture; Density; Distribution Pattern; Thalassina anomala 
ECOTOURISM DEVELOPMENT OF SNORKELING AND DIVING ACTIVITY TOWARD CORAL REEF HABITATS IN THE LEMUKUTAN ISLAND OF BENGKAYANG REGENCY Rudianto, Arif; Dewi, Yohana S. K; Burhanuddin, Burhanuddin
AQUASAINS Vol 8, No 2 (2020)
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3301.482 KB) | DOI: 10.23960/aqs.v8i2.p795-808

Abstract

Lemukutan Island has the potential of coral reefs to be developed into snorkeling and diving destinations. This study aims to (1) Analyze the suitability and carrying capacity of Lemukutan Island Conservation area in the development of snorkeling and diving ecotourism; (2) Formulate a strategy for developing Snorkeling and diving ecotourism in Lemukutan Island. Primary data collection with field observations and structured interviews to 30 respondents on Lemukutan Island. Secondary data is collected by various libraries and related. Based on results of the study, Lemukutan Island's coral reef ecosystem for the purpose of snorkeling and diving tourism was in the appropriate category (S2) with an IKW value of 76.8% and 68.86%. While the Ecological Carrying Capacity of each ± 6,139 people / day and ± 1,008 people / day. Based on the results of the SWOT analysis obtained alternatif strategies (1) Management and utilization of coral reefs optimally by taking into account the sustainability; (2) Increased access to Lemukutan islands, such as speed boats and timely departures; (3) Adding snorkeling and diving equipment, and improving resort services; (4) Arrangement of land and sea space in accordance with its designation so that marine resources can be sustainable; (5) Packaging of unique and environmentally based snorkeling and diving tours; (6) Increasing promotion through digital technology and promotion through tourism events to build partnership networks; (7) Improving skills for the community to open up alternative opportunities for new jobs; (8) Disseminating the importance of protecting coral reefs and making rules for snorkeling and diving tours
IMPROVEMENT IN THE GROWTH PERFORMANCE OF TIGER GROUPER Epinephelus fuscoguttatus (Forsskal, 1775) BY PROBIOTIC MICROCAPSULES, Bacillus sp. D2.2 Ignatius Sandra Setyabudi; Esti Harpeni; Wardiyanto Wardiyanto
AQUASAINS Vol 8, No 2 (2020)
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (147.075 KB) | DOI: 10.23960/aqs.v8i2.p853-860

Abstract

Probiotics in the fish's body are able to optimize the nutrition of feed given for growth. Microcapsule techniques can protect probiotics as they pass through the digestive tract. This study aims to study the increase in growth of tiger grouper fish fed with probiotic Bacillus sp. Microcapsules. D2.2 with different dosages. The study was conducted in May - June (30 days) with 5 treatments and 3 replications. The treatments applied are K- (feed without probiotics), K + (feed + liquid probiotics), A (feed + probiotic microcapsules 1 gram / kg of feed), B (feed + probiotic microcapsules 2 gram / kg of feed), C (feed + probiotic microcapsules 3 grams / kg of feed). The following are the highest observations, namely absolute weight gain (23.8 ± 0.7) grams, specific growth rate (1.35 ± 0.04)% /day, feed covertion ratio (FCR) (1.3 ± 0.1) ), survival rate (83 ± 2.9)% and protein digestibility 90.56% while the lowest value is in the control treatment. The results showed that the administration of probiotic microcapsules was able to significantly increase the growth of tiger grouper fish compared to control treatments.
Population parameters and exploitation level of striped snakehead, Channa striata (Bloch, 1793) in Aopa Swamp, Southeast Sulawesi Bahrin, Nurtini; La Sara, La Sara; Asriyana, Asriyana
AQUASAINS Vol 8, No 2 (2020)
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1037.313 KB) | DOI: 10.23960/aqs.v8i2.p829-840

Abstract

Striped snakehead is one of the important economical fish in Aopa Swamp waters. Research on population parameters and exploitation level of striped snakehead was conducted from November 2018 to January 2019. The objective of this research was to analyze population parameters and exploitation level of  striped snakehead in the Rawa Aopa waters in Southeast Sulawesi. Fish samples were caught using a fishing trap used by fishermen. A total of 449 individual fish were caught with ranging 20.0-47.0 cm in length and 59.0-994.0 g in weight. Striped snakehead has an isometric growth pattern (b=3.08 ; r=0.96, R2=0.92) with the equation model W=6.10-3L3,08. Striped snakehead reaches its maximum length in size L ͚ = 48.62 cm with a growth coefficient (K) of 0.68 year-1. Fishing mortality (F= 0.87) is higher than natural mortality (0.63). Exploitation level of striped snakehead in Rawa Aopa waters is categorized as overfishing (E> 0.5).Keywords : Striped snakehead, isometrics, overfishing, Aopa Swamp, Southeast Sulawesi
WATER QUALITY OF FISHING LOCATION OF SEPATUNG FISH (Pristolepis grootii) AT KELEKAR RIVER, OGAN ILIR REGENCY OF SOUTH SUMATERA Muslim, Muslim
AQUASAINS Vol 8, No 2 (2020)
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (247.466 KB) | DOI: 10.23960/aqs.v8i2.p809-814

Abstract

This study aims to determine the parameters of water quality at the fishing locations of the sepatung fish (Pristolepis grootii). Water quality is very influenced by environmental conditions. Kelekar River is one of the rivers located in the area of the flooded swamp area. The water quality characteristics of this river are very influenced by the condition of the surrounding swamps. Based on water acidity (pH) parameters, the quality of river water tends to be acidic, but the sepatung fish (P grootii) can live, grow and develop in this habitat. Water quality in natural waters habitats h can be used as a reference in the maintenance of fish in aquaculture media.
Feasibility Analysis of Freshwater Fish Farming Business Development in Pringsewu District Sirat, Muhiddin; Shaleh, Shofyan; Ermawati, Ratna; Sirat, Muhammad Mirandy Pratama; Utomo, Deny Sapto Chondro
AQUASAINS Vol 8, No 2 (2020)
Publisher : Jurusan Perikanan dan Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/aqs.v8i2.p815-828

Abstract

This research has two aims, the first was to see and analyze the business of freshwater fish farming in Pringsewu District which is feasible or not to be developed. The second aim was to find out whether the freshwater fish farming business in Pringsewu District remain feasible to be developed if there was a decrease in production levels and an increased in production costs. This research analyzes several aspects of business feasibility, namely marketing aspect, production aspect, management aspect dan financial aspect. In the financial aspect, two approaches were used, that were analysis of unpaid business feasibility using the Benefit Cost Ratio (B/C Ratio), Break event point (BEP), Return On Invesment (ROI) analysis tools and discounted business feasibility analysis with the Net Present Value (NPV), Net Benefit Cost Ratio (Net B/C), Internal rate of retur (IRR), Gross Benefit Cost Ratio (Gross B/C), Payback period analysis tools. The results of this study indicate that the aspects of marketing, production aspect, and management aspect have the potential to be developed, as well as the financial aspects with the feasibility analysis of non-discounted shows that the business of freshwater fish farming in Pringsewu District is feasible to be developed. The results of the sensitivity analysis also show that the business is still feasible to be developed despite a decline in production levels and an increased in production costs. Keywords : Business Development, Business Feasibility, Project Evaluation, Freshwater Fish Farming

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