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Journal of Aquatropica Asia
Published by Universitas Bangka Belitung
ISSN : 24073601     EISSN : 27217574     DOI : https://doi.org/10.33019/aquatropica
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Journal of Aquatropica Asia (JoAA) is an open access scientific periodical managed by the Department of Aquaculture, Bangka Belitung University. JoAA Journal involvement is carried out 2 (two) times a year, namely in July and December in the form of the main manuscript is an article that contains the results of research (research articles). Other manuscript contributions can be in the form of short articles (short communication), articles review, and also special issues. Articles received will be reviewed by reviewers managed by the Editor in Chief before the manuscript is accepted and approved for publication in JoAA. The Journal of Aquatropica Asia (JoAA) accepts articles written in Indonesian or English with regard to aquaculture studies and aquatic ecology in the broadest sense covering aspects of reproduction, nutrition and feed, genetics, physiology, morphology, health of aquatic organisms, water quality, plankton, conservation, and other aspects relevant to the field of aquaculture.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 168 Documents
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KAJIAN PEMBERIAN PAKAN BERBAHAN BAKU LOKAL DENGAN KANDUNGAN PROTEIN BERBEDA TERHADAP PERTUMBUHAN BENIH LELE (Clarias sp.) Ekadana Putra Sebayang; Siti Hudaidah; Limin Santoso
Journal of Aquatropica Asia Vol 5 No 2 (2020): Journal of Aquatropica Asia
Publisher : Jurusan Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/aquatropica.v2i1.2068

Abstract

Feed is one of the production costs which accounts for 65% of the total production cost of sangkuriang catfish (Clarias sp.) cultivation, so there is a need for alternative feed ingredients that can reduce feed costs. The use of local raw materials in making feed can be an alternative in cultivation activities and is expected to reduce production costs. This study aims to determine the effect of feeding local raw materials with different proteins on the growth of catfish seeds and to analyze the cost of feed production. This research was conducted on March 20 to June 18 2020 at the Integrated Field Laboratory of the Faculty of Agriculture, University of Lampung. The research design used was a completely randomized design with 4 treatments and 3 replications, namely feed A (32%), feed B (30%), feed C (33%) and feed D (36). The data obtained were analyzed by using the ANOVA test and followed by the Duncan test. The parameters observed in this study were absolute weight growth, daily growth rate, feed conversion ratio, survival rate, protein retention, water feed resistance, feed cost analysis and water quality. The results showed that D feed with 36% protein treatment had a significant effect on the feed conversion ratio of sangkuriang catfish. Feed D resulted in the lowest FCR of 0.58.
EFEKTIVITAS Daphnia sp. YANG DIBERI PAKAN PELET TERHADAP PERTUMBUHAN LARVA IKAN SEMAH Tor douronensis (Valenciennes, 1842) Dina Tri Madya Ningsih; Siti Hudaidah; Mas Tri Djoko Sunarno
Journal of Aquatropica Asia Vol 5 No 2 (2020): Journal of Aquatropica Asia
Publisher : Jurusan Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/aquatropica.v5i2.2069

Abstract

The semah fish (Tor douronensis) is an Indonesian endemic fish that has a long growth, which takes 4 years to grow from larvae to broodstock. This study aims know of Daphnia sp. pelet fed with effective doses to increase the growth of semah’s fish larvae. The study was conducted from March 25 to April 13, 2020 at the Instalasi Riset Plasma Nutfah, Cijeruk, Bogor, West Java. The experimental design used completely randomized design (CRD) 4 treatments and 3 replications, namely treatment A (Daphnia sp.+pelet feed 0 gr/ L), treatment B (Daphnia sp.+ pelet feed 1 gr / L), treatment C (Daphnia sp. + pelet feed 2 gr / L), treatment D (Daphnia sp. + pelet feed 3 gr / L). The larvae of 9 days in age were randomly stocked into 12 aquariums measuring 60x30x35 cm with a density of 50 fish/aquarium and fed in the form of Daphnia sp. enriched pelet feed according to the treatment of 50 ind/larvae by giving 3 times a day which is maintained for 20 days. The test parameters measured are absolute growth in length and weight, survival rate, and water quality. Based on the results of statistical analysis (Anova), the results showed that the treatment D gave the highest influence on the growth of semah’s fish larvae (P <0.05) with an absolute weight growth value of 85,3 mg, absolute length growth of 10.6 mm, and survival rate 99.33%.
KESEDIAAN MEMBAYAR WISATAWAN TERHADAP UPAYA PELESTARIAN MANGROVE DI PULAU PAHAWANG, KABUPATEN PESAWARAN, LAMPUNG Boy Apriliawan; Indra Gumay Yudha; Suparmono Suparmono; Abdullah Aman Damai
Journal of Aquatropica Asia Vol 5 No 2 (2020): Journal of Aquatropica Asia
Publisher : Jurusan Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/aquatropica.v5i2.2205

Abstract

Ecotourism on Pahawang Island is a well-known tourist destination in Pesawaran Regency, Lampung Province with has mangrove ecosystem covers an area of ​​141.94 ha. Unfortunately, in 2016, there was logging of the mangrove ecosystem on Pahawang Island which caused the mangrove ecosystem to suffer damage. This must be immediately responded to by conducting efforts to protect, conserve and manage the mangrove ecosystem by inviting the community to contribute. This research aimed to identify the characteristics and estimate the value of the visitor's willingness to pay for mangrove conservation efforts on Pahawang Island. This research was conducted in December 2019. The research data was collected using the multistage sampling method. The variables used in this study were willingness to pay, bid, income, education, age, gender, city of origin, marital status and tourism frequency. The results of this study are based on the characteristics of mangrove ecosystem tourists on Pahawang Island, namely, most visitors are willing to contribute to mangrove conservation efforts, come from outside Lampung Province, average age is between 20-29 years, average have a history of high school education, with income is less than Lampung minimum wages (Rp2,432,001.57), most of the respondents are not working and are not married. The result is showing estimated value of the willingness to pay of IDR5,000/individual per visit with an estimated cost of IDR 254,661,000/year.
DESAIN SARANA DAN PRASARANA EDU-EKOWISATA MANGROVE DI BULAKSETRA, KABUPATEN PANGANDARAN Indra Kristiana; Kennedi Sembiring; Mario Pandu Wiranata
Journal of Aquatropica Asia Vol 5 No 2 (2020): Journal of Aquatropica Asia
Publisher : Jurusan Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/aquatropica.v5i2.2215

Abstract

Mangrove ecosystems in coastal areas play an important role in supporting physical, biological, and environmental economic functions. One of the alternatives to preserve the mangrove ecosystem is integrated area management. Bulaksetra Beach is a mangrove area located on the East Coast of Pangandaran which has the potential to be developed as an ecotourism area. The Edu-ecotourism area which combines conservation, education, research, and economy requires good and appropriate management. Analysis of land suitability, vegetation types and environmental conditions is important in making decisions and determining the feasibility of an area. Facilities and infrastructure are one of the elements and indicators that support the success of an Edu-ecotourism area. Observations on water conditions, types of mangrove vegetation, water substrate, weather and topography were carried out to determine the feasibility of developing facilities and infrastructure in the Bulaksetra area. The results showed that the Bulaksetra area was feasible to be developed into an Edu-ecotourism area with an average salinity measurement of 14 ppt, an average rainfall of 46.4 mm - 81.3 mm, a sandy mud substrate and a gentle topography. The zoning of the mangrove ecosystem was carried out based on the main mangrove vegetation in Bulaksetra, namely Avicennia alba and Rhizophora apiculata. The selection of vegetation in the landscape design is adjusted to the natural vegetation and topography in the Bulaksetra area. The supporting facilities for Bulaksetra Edu-ecotourism were designed include mangrove trekking, canoeing docks and mangrove galleries. Facilities are designed according to area size, landscape, and suitability of location. Further studies such as the selection of design and building materials, material costs, construction costs, operational costs and maintenance costs need to be carried out to determine the appropriate building construction. The development of Bulaksetra Edu-ecotourism facilities and infrastructure is expected to contribute to the development of the mangrove ecosystem so that it becomes a center for information, education, and conservation for the public, especially in Pangandaran Regency.
PERFORMA PERTUMBUHAN DAN KELANGSUNGAN HIDUP BENIH IKAN BETUTU (Oxyeleotris marmorata ) YANG DIPELIHARA PADA WARNA WADAH DAN SISTEM AERASI YANG BERBEDA Ahmad Sahrim; Eva Prasetiyono; Robin Robin
Journal of Aquatropica Asia Vol 4 No 2 (2019): Journal of Aquatropica Asia
Publisher : Jurusan Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/aquatropica.v4i2.2218

Abstract

This research aimed to evaluate the effect of container use and aeration on marbled goby's growth and survival. Evaluate aerated containers and optimal containers in the marbled goby culture, which are expected to increase their growth and survival. This study uses the experimental method Complete Complete Random Design with six handling and three replications. The treatment given is on the transparent container with aeration (A), transparent containers without aeration (B), black containers with aeration (C), black containers without aeration (D), blue containers with aeration (E), blue containers without aeration (F). This research was conducted in March - April 2018 in the Aquaculture Laboratory, Bangka Belitung University. The main parameters measured were the growth and survival of marbled goby seeds. The results showed that the culture on a different color of the containers and aeration system did not affect the growth and survival of marbled goby (Oxyeleotris marmorata) size of fish seed 11 – 15 cm fish density of 4 fish in each treatment.
KEMATANGAN GONAD UDANG GALAH Macrobrachium rosenbergii DENGAN PAKAN ALAMI YANG BERBEDA Ayu Safitri; Suci Puspita Sari; Ardiansyah Kurniawan
Journal of Aquatropica Asia Vol 4 No 2 (2019): Journal of Aquatropica Asia
Publisher : Jurusan Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/aquatropica.v4i2.2220

Abstract

The reduction of dependency on the consumption of giant prawns (Macrobrachium rosenbergii) from river catchments has essential significance for its natural sustainability. Artificial prawn reproduction gives benefits to the economy and the environment. Applicable maturation technology is needed to facilitate community participation in cultivating giant prawns. The increasing level of gonad maturity (TKG) in this study uses different natural feed in the form of golden snails, earthworms, and squid. Observation of giant prawn maturity was carried out using macroscopic morphological characteristics on the dorsal cephalothorax. All treatments were able to increase TKG from level 2 to level 3 for 30 days of treatment with golden snail intake, giving the fastest increase (7.33 ± 1.1 days) and followed by squid (11.3 ± 2 days) and earthworms (17.67 ± 2 days). Growth of giant prawns with golden snail, earthworm, and squid feed is 1.2, -4.33, -0.83 for weights and 1.03, 0.4, and 0.53 for length. The three natural foods can be utilized for the maturation of giant prawn gonads, but it is necessary to add a source of carbohydrates as energy intake.
PERFORMA PERTUMBUHAN DAN KELANGSUNGAN HIDUP IKAN SELUANG (Rasbora einthovenii) PADA PERLAKUAN pH YANG BERBEDA Dobi Irawan; Suci Puspita Sari; Eva Prasetiyono; Ahmad Fahrul Syarif
Journal of Aquatropica Asia Vol 4 No 2 (2019): Journal of Aquatropica Asia
Publisher : Jurusan Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/aquatropica.v4i2.2221

Abstract

Ornamental fish have a good potential to develop in Indonesia. Seluang (Rasbora enthovenii) is an endemic fish in the waters of Bangka Belitung. The factor that affects the survival rate and growth is pH. The purpose of this research is to know the effect of pH on survival rate and growth. The research has been done in October and November 2017. The experimental design used in the study was a randomized complete design (RAL) with 4 treatments and 3 replicated. The result of pH variance affects the survival rate. Based on the Duncan test, the treatment of pH 6,0 - 6,5 has a significant effect on the survival rate. The results of the Duncan test for all treatments don't have a significant effect on growth. The conclusion of the research is pH 6,0 - 6,5 gives the optimum effect for survival rate, on 96,66 ± 0,57%. All treatments don't have a significant effect on growth (P> 0.05).
GAMBARAN DARAH IKAN NILA (Oreochromis niloticus) YANG DIBERI PAKAN TERFORTIFIKASI EKSTRAK CAIR DAUN SALAM (Syzygium polyanthum) Wahyu Dwi Putranto; Denny Syaputra; Eva Prasetiyono
Journal of Aquatropica Asia Vol 4 No 2 (2019): Journal of Aquatropica Asia
Publisher : Jurusan Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/aquatropica.v4i2.2222

Abstract

Tilapia (Oreochromis niloticus) is populer as resistant fish to environmental changes. Cultivating fish with a high stocking density can cause a decrease in water quality. It has an impact on susceptibility to disease due to decreased water quality. Immunostimulants from Phyto-pharmacy are needed to improve the non-specific immune system of fish from natural ingredients. Bay leaves (Syzigium polyanthum) have the potential to be used as an immunostimulant in fish. This study aimed to evaluate the extract of Salam leaves fortified in feed against the blood profile of Tilapia. The research was carried out in April - May 2018 using a completely randomized design (CRD) with 4 treatments and 3 replications. Salam leaf extract through feed affects the increase of leucocytes and blood erythrocytes of tilapia but does not affect hemoglobin levels and hematocrit levels. Doses of 2x10-2 g mL-1 increased fish blood leukocytes on day 21st to be the best treatment in this study.
MASKULINISASI IKAN NILA (Oreochromis niloticus) MENGGUNAKAN EKSTRAK CABE JAWA (Piper retrofractum) MELALUI PERENDAMAN LARVA Hafizhotur Rohmaniah; Denny Syaputra; Ahmad Fahrul Syarif
Journal of Aquatropica Asia Vol 4 No 2 (2019): Journal of Aquatropica Asia
Publisher : Jurusan Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/aquatropica.v4i2.2243

Abstract

The aimed of this study was to evaluate the effectiveness of java long pepper extract in the increasing of the percentage of males nile tilapia. The design of experiment was completely randomized design with 5 treatments i.e : A (negative control), B (1,99 mg L-1), C (3,99 mg L-1), D (5,99 mg L-1) and positive control (20 mg L-1 17α-metiltestosteron) with three replicates per level of treatment. Immersion of 10-day-old larvae for 24 hours with 50 larvae in 10 L medium of treatments and cultivated for 60 days and identification of gender using the acetocarmin method. The results showed that java long pepper extract was effective to increase the percentage of males with dose of 1,99 mg L-1 (81,78±6,81%), 3,99 mg L-1 (79,00±2,99%) and 5,99 mg L-1 (87,42±4,85%) while the negative control 39,23±7,74%. Java long pepper extract dose of 5,99 mg L-1 were not significantly different with the treatment of 17α-metiltestosteron i.e : 91,71±3,93%. Percentage of survival rate 47.33±3.06% to 53.33±8.08%, specific growth rate 3,14±0,15% to 3,40±0,08%, absolute weight growth 1.97±0.59 g to 3.07±0.38 g and absolute length growth of 3.73±0.55 cm to 3.95±0.16 cm. Java long pepper extract gives a significant effects to the spesific growth rate and absolute weight growth. Treatment A, B, C, D and E had no effect on survival rate and the absolute length growth of nile tilapia during 60 days cultivation period.
SKRINING BAKTERI TERMOFILIK POTENSIAL AMILOLITIK DARI SUMBER AIR PANAS WAY BELERANG KALIANDA LAMPUNG SELATAN Sefi Desfeni Mawati; Esti Harpen; Hilma Putri Fidyandini
Journal of Aquatropica Asia Vol 6 No 1 (2021): Journal of Aquatropica Asia
Publisher : Jurusan Akuakultur, Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/aquatropica.v6i1.2458

Abstract

Thermophilic bacteria that produced amylase and protease have been isolated from Way Belerang hot spring, Kalianda, South Lampung. This research aims to screen and identify thermophilic bacteria that have the potential to produce thermostable amylase and protease enzymes.The research procedures included sampling, isolation of enzyme-producing thermophilic bacteria, a series of phenotypic and biochemical tests, and molecular identification by 16s rRNA. This study used 2 treatments, namely incubation temperature 37 and 50 ºC with 3 repetitions. The results showed that the optimum temperature for growth of thermophilic bacterial isolates and thermophilic bacterial isolates producing amylase enzymes was 50ºC. The bacteria isolate that had the best amylolytic enzyme activity was Isolate A.WB.50.1 with a diameter of the inhibitory zone was 15.44 mm. Isolate A.WB.50.1 has been identified by the species Pseudomonas stutzeri.

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