Effects of salinity and food on growth and survival rate of mangrove snail (\(\textit{Nerita balteata}\) Reeve, 1885) at the spat larvae stage

Mangrove snail (Nerita balteata) belongs to gastropoda species distributed in the coastal intertidal and offshore islands of Quang Ninh province. Although the artificial seeds production of this species have been successful but still having a bottle neck as a low survival rate in the process by veliger larvae are transformed into spat larvae stage. Experiments were conducted to determine effects of salinity and food on growth rate and survival rate of mangrove snail in the stage of spat larvae in Quang Ninh province. The results showed that the optimal salinity for growth and developtment of spat larvae was 25‰ that resulted in a absoluted growth rate of 16.5 ± 2.19 µm/day and survival rate of 26.5 ± 0.57% and significantly higher compared to other treatments. The diet of benthic microalgae (Navicula sp.) combined with formulated feed (AP0 and Frippak) were most suitable for the growth and development of mangrove snail at the spat larvae stage with absoluted growth rate of 25,7 ± 1,28 µm/day; Whereas the survival rate of larvae of 32,3 ± 2,52% was significantly higher than those in the other treatments.

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WATER QUALITY AND ITS EFFECT ON GROWTH AND SURVIVAL RATE OF LOBSTER REARED IN FLOATING NET CAGE IN EKAS BAY, WEST NUSA TENGGARA PROVINCE

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.29244/jitkt.v6i2.9011 ◽

2015 ◽

Vol 6 (2) ◽

Author(s):

Muhammad Junaidi ◽

Mat Sardi Hamzah

Keyword(s):

Water Quality ◽

Growth Rate ◽

Survival Rate ◽

Quality Data ◽

Dominant Factor ◽

Growth And Survival ◽

Water Quality Status ◽

Net Cage ◽

Quality Status ◽

Effect On Growth

ABSTRACT The development of lobster farming in floating net cage in Ekas Bay caused an environmental degradation such as decrease water quality due to some aquaculture wastes. The purposes of this study were to determine the status of water quality and their effect on growth and survival rate of lobster reared in floating net cages (FNC) in the Ekas Bay, West Nusa Tenggara Province. Water sample collection and handling referred to the APHA (1992). Analyses of water quality data were conducted using Principal Component Analysis. Determination of the water quality status of Ekas Bay was performed with STORET system. Multivariate analyses were used to determine the relationship between water quality, growth, and survival rate of lobster reared in FNC. Results showed that Ekas Bay water quality status was categorized in class C (medium contaminated), which exceeded some quality standard parameters such as ammonia (0.3 mg/l), nitrate (0.008 mg/l), and phosphate (0.015 mg/l). During lobster farming activities feeding with trash fish for 270 days, we obtained daily growth rate of 0.74% (lower than normal growth rate of 0.86%), survival rate of 66% (lower than normal survival rate of 86.7%), and feed conversion ratio of 11.15. Ammonia was found as a dominant factor reducing growth and survival rate of lobster reared in FNC. Keywords: water quality, lobsters, growth, survival, Ekas Bay

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Comparison of the Growth Potential of Macrobrachium rosenbergii in Mono and Polyculture Conditions in Earthen Culture Ponds of Jammu, India

Journal of Ecophysiology and Occupational Health ◽

10.18311/jeoh/2019/23499 ◽

2019 ◽

Vol 19 (3&4) ◽

pp. 112

Author(s):

Sanjeev Kumar Karlopia ◽

Yahya Bakhtiyar ◽

Seema Langer

Keyword(s):

Growth Rate ◽

Survival Rate ◽

Macrobrachium Rosenbergii ◽

Growth Potential ◽

Growth And Survival ◽

Indian Major Carps ◽

Freshwater Ponds ◽

Mean Size ◽

Average Size ◽

Major Carps

The study was conducted to assess the growth and survival of Macrobrachium rosenbergii in earthen culture ponds in order to know about the growth potential of M. rosenbergii in mono as well as polyculture conditions in Jammu. Polyculture experiments of prawn with some selected carps Indian Major Carps (Cirrhinus mrigala and Labeo rohita) and Exotic Carps (Cyprinus carpio) were undertaken in 3 freshwater ponds for duration of 4 months. Under the monoculture conditions, prawns attained an average size of 10.40 ± 0.17 cm weighing 23.84 ± 0.32 g in 4 months and the survival rate was found to be more than 75%. The growth rate of prawns was found to increase steadily during the first half (upto mid-October) after which a decline in the growth rate was evident as the mean temperature reached below 18°C. In the polyculture ponds the prawns attained an average size of 10.10 ± 0.03 cm weighing 18.39 ± 0.89g (without C. carpio) and 8.4 ± 0.36 cm weighing 15.23 ± 0.36 g (with C. carpio) in 4 months and their survival rate was less than 70%. Prawns being benthic feeders utilized the leftover food (of the fishes) that settled at the bottom, therefore, saving the feed cost. It was observed that mean size of the fish attained in the polyculture practice was almost similar to that obtained in the monoculture. The ideal prawn polyculture should be practiced with fast growing compatible carps such as Rohu and grass carp. Bottom feeder carps such as Mrigal (C. mrigala) should be avoided in prawn polyculture practice as they compete with prawns in feeding.

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PENGARUH TEPUNG TELUR AYAM AFKIR PADA PAKAN BUATAN YANG BERPROBIOTIK TERHADAP EFISIENSI PEMANFAATAN PAKAN, PERTUMBUHAN DAN KELULUSHIDUPAN LELE DUMBO (Clarias gariepinus). (The Effect Of Chicken Eggs Rejects Powder In Artificial Feed With Added Probiotic On Efficiency Feed Utilization, Growth And Survival Rate Of Dumbo Catfish (Clarias Gariepinus))

SAINTEK PERIKANAN Indonesian Journal of Fisheries Science and Technology ◽

10.14710/ijfst.13.2.111-118 ◽

2018 ◽

Vol 13 (2) ◽

pp. 111

Author(s):

Suminto Suminto ◽

Titik Susilowati ◽

Bambang Argo Wibowo ◽

Diana Chilmawati

Keyword(s):

Growth Rate ◽

Survival Rate ◽

Protein Efficiency Ratio ◽

Clarias Gariepinus ◽

Feed Utilization ◽

Efficiency Ratio ◽

Relative Growth ◽

Growth And Survival ◽

Chicken Egg ◽

Egg Powder

Pengembangan budidaya ikan lele, Clarias gariepinus sering terjadi kendala dengan biaya pakan yang terlalu tinggi (60-70% dari biaya produksi). Barangkali, penggunaan bahan baku lokal seperti pemanfaatan tepung telur ayam yang nilai nutrisinya tinggi, mudah didapat, dan murah harganya merupakan salah satu solusinya. Tujuan penelitian ini adalah untuk mengkaji dan mengetahui pengaruh penambahan tepung telur ayam afkir dalam pakan buatan yang berprobiotik terhadap efisiensi pemanfaatan pakan, pertumbuhan dan kelulushidupan ikan lele dumbo (C. gariepinus). Penelitian ini menggunakan metode eksperimental dengan rancangan acak lengkap (RAL) yang menggunakan 4 perlakuan dan masing-masing 3 kali kali ulangan. Perlakuan itu adalah pakan yang tanpa menggunakan tepung telur ayam afkir (Perlakuan A), pakan yang menggunakan tepung telur afkir masing-masing sebanyak 15%, 30%, dan 45% sebagai Perlakuan B, C, dan D. Ikan uji bibit lele dumbo (C. gariepinus) yang ditebar mempunyai bobot rerata 2.04±0.05 g dengan kepadatan 1 ekor/L yang dipelihara selama 42 hari. Variabel data yang diukur meliputi Tingkat Konsumsi Pakan (TKP), Efisiensi Pemanfaatan Pakan (EPP), Feed Convertion Ratio (FCR), Protein Efficiency Ratio (PER), Relative Growth Rate (RGR), dan Survival Rate (SR). Hasil penelitian ditunjukkan bahwa penggunaan tepung telur ayam afkir pada pakan buatan memberikan pengaruh yang nyata (p < 0.05) terhadap TKP, EPP, FCR, PER, dan RGR, tetapi tidak berpengaruh nyata (P≥0,05) terhadap SR. Perlakuan dengan penambahan tepung telur ayam afkir sebanyak 30% (Perlakuan C) memberikan nilai terbaik untuik TKP sebesar 146,87%, EPP sebesar 88,77%, PER sebesar 2,61% dan RGR sebesar 7,65%/hari dari perlakuan lainnya. Monitoring nilai kualitas air pada media pemeliharaan telah menunjukkan bahwa pada kisaran yang layak untuk pemeliharaan ikan uji. Catfish cultivation development, Clarias gariepinus often occur constraints with the high cost of feed (60-70% of the production cost). Perhaps, the use of local raw materials such as the utilization of rejected chicken egg with high nutritional value, easy to obtain, and cheap price is one of the solution. The purpose of this research was to know the effect of addition of rejected chicken egg powder inprobiotized artificial feed on the efficiency of feed utilization, growth and survival rate of catfish, C. gariepinus. This study was used an experimental method with completely randomized design (RAL) by using 4 treatments and each of them 3 replications. The treatments were feed without use of rejected chicken egg powder (Treatment A), feed using 15%, 30%, and 45% of powder meals of rejected chicken egg as treatment B, C, and D, respectively. Catfish, C. gariepinus seeds were stocked with a mean weight of 2.04 ± 0.05 g with a density of 1 tail / L and cultured for 42 days. The data variables measured were Total of Feed Consumption (TFC), Feed Utilization Efficiency (FUE), Feed Conversion Ratio (FCR), Protein Efficiency Ratio (PER), Relative Growth Rate (RGR), and Survival Rate (SR). The results showed that the use of chicken egg starch in artificial feed gave a real effect (p <0.05) on TFC, FUE, FCR, PER, and RGR, but no significant effect (P≥0,05) on SR. Treatment with the addition of 30% chicken meal (Treatment C) had the best value for TFC at 146.87%, the FUE of 88.77%, the PER of 2.61% and the RGR of 7.65% / day than of the another treatments. Monitoring of water quality values on maintenance media has shown that at a reasonable range for the maintenance of catfish culture.

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The comparative productivity of five ewe breeds. 1. Lamb growth and survival

Australian Journal of Experimental Agriculture ◽

10.1071/ea9800272 ◽

1980 ◽

Vol 20 (104) ◽

pp. 272 ◽

Cited By ~ 20

Author(s):

KD Atkins

Keyword(s):

Growth Rate ◽

Birth Weight ◽

Survival Rate ◽

Agricultural Research ◽

Research Station ◽

Dual Purpose ◽

Growth And Survival ◽

Body Weights ◽

Formed Part ◽

Lamb Growth

An experiment was conducted at Temora Agricultural Research Station to compare birth weights, growth rates to weaning, and survival of lambs from five breeds. These data formed part of a larger study comparing the productivity of these breeds as possible dual-purpose ewe breeds. The breeds were a Border Leicester X Merino fixed halfbred (BLM), Corriedale, Polwarth, and a South Australian strong wool (S.A. Merino) and a medium wool Peppin strain of Merino. The descending order of ranking of the breeds on birth weight and growth rate to weaning was BLM, Corriedale, S.A. Merino, Polwarth and Peppin Merino. A significant breed x year interaction in pre-weaning growth rate was recorded, since the absolute differences between breeds increased as the overall mean growth rate increased. Breed means for the survival rate of single-born lambs ranged from 80.7 to 86.4 lambs weaned per 100 lambs born and they were not significantly different from each other. The mean survival rate of multipleborn lambs from the S.A. Merino and Polwarth breeds were 65.0 and 69.5 respectively, and these were significantly lower than the survival rate of multiples from the other breeds (76.8 to 80.4). Within breeds, birth weight was found to be positively related to survival at low birth weights but negatively related to survival at high body weights

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Effect of Hardness in 3 ppt of Water Salinity on growth and survival rates of Barb Fish (Barbus conhonius Hamilton-Buchanan)

Jurnal Akuakultur Indonesia ◽

10.19027/jai.4.17-24 ◽

2007 ◽

Vol 4 (1) ◽

pp. 17 ◽

Cited By ~ 1

Author(s):

Kukuh Nirmala ◽

R. Wulandari ◽

D. Djokosetiyanto

Keyword(s):

Growth Rate ◽

Survival Rate ◽

Survival Rates ◽

Water Hardness ◽

Water Salinity ◽

Daily Growth Rate ◽

Daily Growth ◽

Growth And Survival

This study was conducted to determine the effect of hardness on growth and survival rate of barb fish (Barbus conchonius Hamilton-Buchanan) reared in the 3 ppt of water salinity. Fish were reared in three different hardnesses, i.e., 54, 72, and 90 mg/L CaCO3 for 30 days. The results of study showed that fish reared in water hardness of 72 mg/L CaCO3 had higher daily growth rate (1.15%) compared with other treatments. Daily growth rate of fish reared in water hardness of 54 and 90 mg/L CaCO3 were 0.76 and 0.37%, respectively. There was no effect of hardness on survival rate of barb fish. Keywords: barb fish, Barbus conchonius, hardness, salinity ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh kesadahan yang berbeda terhadap laju pertumbuhan dan tingkat kelangsungan hidup ikan barbir (Barbus conchonius Hamilton-Buchanan) yang dipelihara <a name="OLE_LINK2"></a><a name="OLE_LINK1">pada air bersalinitas 3 ppt. </a>Ikan dipelihara dalam 3 tingkat kesadahan yang berbeda, yaitu 54 mg/L CaCO3, 72 mg/L CaCO3, dan 90 mg/L CaCO3 selama 30 hari. Hasil penelitian menunjukkan bahwa laju perumbuhan harian tertinggi diperoleh pada ikan yang dipelihara pada kesadahan 72 mg/L CaCO3 (1,15%) dibandingkan dengan perlakuan lainnya. Laju pertumbuhan harian ikan yang dipelihara pada kesadahan 54 dan 90 mg/L CaCO3 masing-masing mencapai 0,76% dan 0,37%. Kelangsungan hidup ikan barb tidak dipengaruhi oleh kesadahan. Kata kunci: ikan barbir, Barbus conchonius, kesadahan, salinitas

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Effect of Stocking Density on Growth and Survival Rate of Giant Gouramy (Osphrenemus gouramy Lac.) Seed

Jurnal Akuakultur Indonesia ◽

10.19027/jai.8.199-207 ◽

2009 ◽

Vol 8 (2) ◽

pp. 199 ◽

Cited By ~ 3

Author(s):

S. Sarah ◽

. Widanarni ◽

Agus Oman Sudrajat

Keyword(s):

Growth Rate ◽

Survival Rate ◽

Feed Efficiency ◽

Stocking Density ◽

Individual Growth ◽

Daily Growth Rate ◽

Daily Growth ◽

Fish Yield ◽

Growth And Survival ◽

Individual Growth Rate

This experiment was conducted to study the stocking density effect on growth and survival rate of giant gouramy seed in the aquarium. Fish were stocked at the density of 2.5; 5.0; 7.5 and 10 individual/l with average initial weight and length were 0.013 g and 5.56 mm, respectively. Fish were fed with silkworm (Tubifex sp.) ad libitum in the morning and evening for 22 days of experiment. Aquarium was siphoned and water was changed everyday for maintaining good water quality. Result showed that survival rate remain high in all treatment (93.5 - 95.5%). Increasing stocking density from 2.5 to 10 individual/I did not affect survival rate. On the other hand growth rate and feed efficiency decreased, while fish yield increased. Stocking density of 2,5 individual/l gave the highest daily growth rate, individual growth rate, growth in length and feed efficiency of 12.94%, 0.0081 g/day, 16.84 mm and 12.51%; respectively. The highest value for fish yield (0,0360 g/l/day) was obtained from stocking density of 10 individual/l Key words: stocking density, seed, survival rate, growth rate, giant gouramy Osphrenemus goramy ABSTRAK Keterbatasan pengadaan benih ikan gurame (Osphronemus gourame Lac.) disebabkan oleh tidak seimbangnya jumlah benih yang tersedia dengan kebutuhan usaha pembesaran. Teknik pembenihan yang digunakan sampai saat ini relatif sederhana dengan cara tradisional. Pemeliharaan gurame secara terkontrol di akuarium dapat menjawab tantangan dalam teknologi pembenihan gurame sekaligus sebagai sarana pola budidaya secara bertahap yang sedang berkembang saat ini. Produksi yang tinggi akan dicapai dengan pemeliharaan pada kepadatan yang tinggi. Pada keadaan lingkungan yang baik dan pakan yang mencukupi, peningkatan kepadatan akan disertai dengan peningkatan hasil. Jumlah ikan yang ditebar pada penelitian ini disesuaikan berdasarkan perlakuan yaitu 2,5; 5,0; 7,5 dan 10 ekor/l. Pengamatan terhadap ikan dilakukan sampai hari ke-22. Hasil pengamatan menunjukkan bahwa peningkatan kepadatan 2,5 - 10 ekor/l pada pemeliharaan benih gurame di akuarium mempengaruhi pertumbuhan, hasil dan efisiensi pakan, namun tidak berpengaruh terhadap kelangsungan hidup. Dengan meningkatnya padat penebaran, laju pertumbuhan dan efisiensi pakan semakin menurun, sedangkan hasil (yield) semakin meningkat. Padat penebaran 2,5 ekor/l menghasilkan laju pertumbuhan harian, laju pertumbuhan individu, pertumbuhan panjang mutlak dan efisiensi pakan tertinggi, masing-masing mencapai 12,94 %, 0,0081 g/hari, 16,84 mm dan 12,51 %. Sedangkan nilai tertinggi untuk hasil (yield) sebesar 0,0360 g/l/hari diperoleh pada padat penebaran 10,0 ekor/l. Kata kunci : padat tebar, pembenihan, gurame dan Osphronemus gouramy

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Growth of green catfish seed fed on sludge worm and artificial feed combination

Jurnal Akuakultur Indonesia ◽

10.19027/jai.12.18-24 ◽

2014 ◽

Vol 12 (1) ◽

pp. 18

Author(s):

Netti Aryani ◽

Niken Ayu Pamungkas ◽

. Adelina

Keyword(s):

Growth Rate ◽

Body Weight ◽

Survival Rate ◽

Artificial Diet ◽

Daily Growth Rate ◽

Daily Growth ◽

Growth And Survival ◽

Absolute Length ◽

The Absolute ◽

Mystus Nemurus

ABSTRACT This research aimed to obtain information of growth and survival of green catfish (Mystus nemurus) juvenile fed with sludge worm (Tubifex sp.; T) and artificial diet (PB) and added with the combination of 50% soybean pulp waste and 50% freshwater trash fish. Feeding was performed in several variation of time during 40 days of fish rearing. Average body length of juvenile was 12 mm and weight 2.8±0.0 mg, maintained at a density of 30 individuals/aquarium. The treatment in this research was T10PB30 (8–18 days old juvenile were fed with sludge worm and 18–48 days old fish were fed with artificial diet), T20PB20 (8–28 days old juvenile were fed with sludge worm and 28–48 days old were fed with artificial diet), T30PB10 (8–38 days old juvenile were fed with sludge worm and 38–48 days old were given artificial diet), PB40 (8–48 days old juvenile were fed artificial diet), T40 (8–48 days old juvenile were fed with sludge worm). The results indicated that the treatment of 40 days feeding with sludge worm provided the best growth and survival as daily growth rate of 16.4±28.0 g/day, the growth of the absolute length was 43.60±0.01 mm, the absolute body weight 2,047.2±35.0 mg and the survival rate was 96.44%. The best artificial feeding treatment was feeding with sludge worm for 30 days and with 10 days of artificial diet, results in daily growth rate of 4.53±0,25 mm/day, the growth of the absolute length 40.00±0.04 mm, the absolute body weight 1,447.2±15.0 mg, and the survival rate 94.44±2.60%. Keywords: artificial feed, sludge worm, growth, green catfish ABSTRAK Penelitian ini bertujuan untuk mendapatkan informasi pertumbuhan dan sintasan benih ikan baung (Mystus nemurus) dengan pemberian cacing sutra (Tubifex sp.; T) dan pakan buatan (PB) kombinasi 50% limbah ampas tahu dan 50% ikan rucah air tawar. Pakan diberikan dengan variasi lama waktu berbeda selama pemeliharaan 40 hari. Rerata panjang awal benih adalah 12 mm dan bobot tubuh 2,8±0,0 mg, dipelihara dengan kepadatan 30 ekor/akuarium. Perlakuan dalam penelitian ini adalah T10PB30 (benih umur 8–18 hari diberi pakan cacing sutra dan umur 18–48 hari pakan buatan), T20PB20 (benih umur 8–28 hari diberi cacing sutra dan umur 28–48 pakan buatan), T30PB10 (benih umur 8–38 diberi pakan cacing sutra dan umur 38–48 diberi pakan buatan), PB40 (benih umur 8–48 hari diberi pakan buatan), T40 (benih umur 8–48 hari diberi pakan cacing sutra). Hasil penelitian ini menunjukkan bahwa perbedaan lama waktu pemberian cacing sutra dan pakan buatan yang terbaik adalah pemberian pakan cacing sutra selama 40 hari dengan laju pertumbuhan harian 16,4±28,0 g/hari, pertumbuhan panjang mutlak 43,60±0,01 mm, bobot mutlak 2.047,2±35,0 mg, dan sintasan 96,44%. Selanjutnya variasi lama waktu pemberian pakan buatan yang terbaik adalah pemberian cacing sutra selama 30 hari dan pakan buatan sepuluh hari dengan laju pertumbuhan harian sebesar 4,53±0,25 mm/hari, pertumbuhan panjang mutlak 40,00±0,04 mm, bobot mutlak 1.447,2±15,0 mg, dan sintasan 94,44±2,60%. Kata kunci: pakan buatan, cacing sutra, pertumbuhan, ikan baung

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Study of the growth and survival parameters of Macrobrachium rosenbergii shrimp depending on the type of feed used

E3S Web of Conferences ◽

10.1051/e3sconf/202127303008 ◽

2021 ◽

Vol 273 ◽

pp. 03008

Author(s):

Evgeny Tikhonov ◽

Valentin Bazykin ◽

Igor Grigorev ◽

Sergey Solovyov ◽

Elena Radkevich

Keyword(s):

Water Quality ◽

Fatty Acids ◽

Growth Rate ◽

Survival Rate ◽

Suspended Solids ◽

Daphnia Pulex ◽

Macrobrachium Rosenbergii ◽

Implementation Plan ◽

Growth And Survival ◽

Study Implementation

The aim of the study is to determine the effect of the feed type (Daphnia pulex-based feed and Dajana nano gran brand) on the water quality (presence of microorganisms and suspended solids) and on the growth and survival of Macrobrachium rosenbergii shrimp larvae. The study implementation plan involved 4 groups of shrimps placed under the same conditions, which were evaluated for 14 weeks through periodic observations and biometrics. The data obtained recorded significant differences between the groups where the best growth and survival results were obtained in organisms that received Dajana nano gran feed, regardless of water quality. In addition, the values of protein in shrimp meat up to 45% and different amounts of fatty acids were obtained. It was determined that the Daphnia pulex-based feed showed lower results in the growth rate and survival rate of Macrobrachium rosenbergii shrimp.

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EFFECTS OF FEED ON THE SURVIVAL RATE, GROWTH RATE AND METAMORPHOSIS TIME OF THE WHITE LEG SHRIMP LARVAE (Litopenaeus vannamei Boone, 1931) AT ZOEA STAGE

Vietnam Journal of Science and Technology ◽

10.15625/2525-2518/54/4a/11995 ◽

2018 ◽

Vol 54 (4A) ◽

pp. 205

Author(s):

Nguyen Van Cong

Keyword(s):

Growth Rate ◽

Survival Rate ◽

Litopenaeus Vannamei ◽

Survival Rates ◽

Stocking Density ◽

Growth And Survival ◽

Study Results

The larvae of white leg shrimp (Litopenaeus vannamei Boone, 1931) at phase nauplii 6 fed with a stocking density of 150 pcs per litre and 3 formula including formula 1 with dry microalgae Spirulina + artemia as main ingredients, formula 2 with microalgae Thalasiosira weissflogii + artemia as main ingredients and formula 3 with microalgae Thalasiosira pseudonana + artemia as main ingredients. Experiments were carried out in 18 tanks fifty-litre composite at Quang Binh branch of C.P Vietnam Corporation. The study results show that, with formula 3, white leg shrimps larvae at zoea stage have the highest growth and survival rates (86.57 %), followed by formula 2 (76.03 %) and finally formula 1 (67.90 %). White leg shrimps larvae at zoea stage in formula 3 have the shortest metamorphosis time (78.61 hours), followed by formula 2 (83.25 hours) and the longest in formula 1 (94.10 hours).

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GROWTH AND SURVIVAL OF TROPICAL ABALONE Haliotis asinina SEED IN CONCRETE TANKS AT DIFFERENTS STOCKING DENSITY

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.29244/jitkt.v4i2.7781 ◽

2012 ◽

Vol 4 (2) ◽

Author(s):

Mat Sardi Hamzah ◽

Sigit Anggoro Putro Dwiono ◽

Safriyadi Hafid

Keyword(s):

Growth Rate ◽

Survival Rate ◽

Shell Growth ◽

Economic Value ◽

Stocking Density ◽

Seed Density ◽

Total Production ◽

Growth And Survival ◽

Haliotis Asinina ◽

The World

Tropical abalones (Haliotis asinina) is a marine gastropod that has high economic value and consumed by people in the world. In 2002, the production of abalones was 4.076 ton from total production of marine fisheries in the world 8.000 ton. The countries that produce abalone by farming are Taiwan, Cina, South Africa, Japan, Cilie, USA, Australia and New Zealand. Information about the production in Indonesia is scarce. The main issue faced by farmer is higher mortality during post larvae and juvenile. The aim of this research was to observe the influence of abalone seed density in concrete tanks regarding to growth and survival. The research was conducted in January - May 2012 Mataram Marine Bio Industry Technical Implementation Unit, LIPI. Analysis of varians showed that seed densities was not significantly different (P>0.05). The highest survival rate were in density 75 individual/tank with 11.11 % mortality. The highest growth rate were in 50 individual/tank with shell growth rate 0.21cm/14 days and seed weight was 1.23 g.Keywords: growth, survival rate, seed of abalone (Haliotis asinina), density

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