Production of juvenile mud crabs, Scylla serrata: Captive breeding, larviculture and nursery production

Infectious of ectoparasites and vibrios were found as a problem in fattening mud crab. The aims of this study were to determine the clinical sign of infected mud crabs and to identify the ectoparasites and generic vibrio in the fattening mud crabs from Pemalang Coast, Indonesia. Ectoparasites were collected by smear method. Whereas, 20 isolates were collected from hepatopancreas, gills, hemolymph and injured carapace of the mud crabs. Thiosulphate Citrate Bile Salt Sucrose (TCBS) medium was used to isolate suspected vibrios. The clinical signs of mud crabs infected by ectoparasites were shown through the damaged gills and the attachment of other organisms on the gills, whereas the clinical signs of mud crabs infected by vibriosis were shown through red spot on carapace and wound in carapace, claw and abdomen, followed by weak condition. It also indicated that seven ectoparasites were Ichthyobodo sp., Epistylis sp., Carchesium sp., Vorticela sp., Octolasmis sp., Lepeophtherius sp, and Copepodit sp., whilst five Vibrios were V. harveyi, V. Cholerae, V. parahaemolyticus, V. alginolyticus and V. fischeri.

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Performance and physiological responses of combined t-bar and PIT tagged giant mud crabs (Scylla serrata)

Fisheries Research ◽

10.1016/j.fishres.2015.06.013 ◽

2015 ◽

Vol 170 ◽

pp. 212-216 ◽

Cited By ~ 1

Author(s):

Jan-Olaf Meynecke ◽

John Mayze ◽

Hilke Alberts-Hubatsch

Keyword(s):

Physiological Responses ◽

Scylla Serrata ◽

Mud Crabs

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The combined effects of temperature and salinity on growth and survival of juvenile mud crabs (Scylla serrata Forskål)

Aquaculture ◽

10.1016/j.aquaculture.2004.05.030 ◽

2004 ◽

Vol 238 (1-4) ◽

pp. 239-247 ◽

Cited By ~ 53

Author(s):

Ian M. Ruscoe ◽

Colin C. Shelley ◽

Graham R. Williams

Keyword(s):

Scylla Serrata ◽

Combined Effects ◽

Growth And Survival ◽

Effects Of Temperature ◽

Mud Crabs

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Use of a Durometer to Differentiate Between Soft- and Hard-Shelled Mud Crabs (Scylla serrata)

Journal of Aquatic Food Product Technology ◽

10.1080/10498850.2011.576805 ◽

2012 ◽

Vol 21 (1) ◽

pp. 3-13

Author(s):

Mark A. Grubert ◽

Michael J. Phelan ◽

Matthew H. Bird

Keyword(s):

Scylla Serrata ◽

Mud Crabs

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ADDITION OF SHELTERS TO CONTROL THE PHYSIOLOGICAL RESPONSES AND PRODUCTION OF MUD CRAB Scylla serrata IN RECIRCULATION AQUACULTURE SYSTEM

Jurnal Ilmu dan Teknologi Kelautan Tropis ◽

10.29244/jitkt.v12i1.30753 ◽

2020 ◽

Vol 12 (1) ◽

pp. 299-310

Author(s):

Yuni Puji Hastuti ◽

Priyo Handoyo Wicaksono ◽

Wildan Nurusallam ◽

Siska Tridesianti ◽

Yuli Siti Fatma ◽

...

Keyword(s):

Growth Rate ◽

Abiotic Factors ◽

Physiological Responses ◽

Scylla Serrata ◽

Growth Responses ◽

Aquaculture System ◽

Total Hemocyte Count ◽

Recirculation System ◽

Recirculation Aquaculture System ◽

Mud Crabs

The availability of shelters in a specific density is expected to increase the production of mud crabs (Scylla serrata) in a recirculation system. Shelter, as one of the abiotic factors, plays a pivotal role in reducing death caused by cannibalism of crab and suppressing the stress levels of biota. Recirculation Aquaculture System (RAS), with the culture box capacity 60 L supported by the shelters, is predicted to produce the best physiological and growth responses of mud crabs. This present study aims to evaluate the effect of shelter addition in the environmental recirculation system on the physiological responses and production of mud crabs S. serrata with a density of 10 crabs per one culture box containing 60 L of seawater. The research was set up with three treatments of shelter addition, i.e., two shelters (S2), four shelters (S4), six shelters (S6), and control without shelter (C). Results showed that S6 was the best treatment with a survival rate of 73.33 ± 5.8%, a specific growth rate of 0.886 ± 0.014%, the growth rate of carapace width 0.024 ± 0.004 cm/day, and the lowest feed conversion ratio than those of other treatments. S6 treatment significantly influenced the total hemocyte count of crabs at the early cultivation (P <0.05). Addition of six shelters could optimize the growth of mud crabs with a stocking density of 10 crabs in one culture box.

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Study of Growth and Survival of Mud Crab (Scylla serrata, Forskal) with Different Salinity Levels in culture media

IOP Conference Series Earth and Environmental Science ◽

10.1088/1755-1315/934/1/012015 ◽

2021 ◽

Vol 934 (1) ◽

pp. 012015

Author(s):

Eddiwan ◽

T Dahril ◽

Adriman ◽

Budijono ◽

Efawani ◽

...

Keyword(s):

Culture Media ◽

Salt Content ◽

Optimal Level ◽

Scylla Serrata ◽

Mud Crab ◽

Growth And Survival ◽

Mangrove Crab ◽

Salinity Levels ◽

B 31 ◽

Mud Crabs

Abstract The aim of this study to find out the optimal level of salinity for the growth and survival of the mud crab (Scylla serrata). The weight of crab seeds were about 47.65-51.32 grams and the carapace length ranged from 64.35-71.30 mm, then put into 12 tanks (1 m x 1 m x 0.4 m) with a density of 4 crab seed per tank. During the maintenance of this test, mangrove crab was fed with fresh chicken intestines as much as 10% of its body weight per day. Water changes are carried out more than 150% per week. At the beginning of the experiment, each tank was conditioned to the same water salinity in all experimental units, namely 33 ppt. To see the effect of differences in salinity levels on the growth and survival of mud crabs, 4 treatments were made consisting of (A) 33 ppt salt content, (B) 31 ppt salt content, (C). The salt content is 29 ppt, and (D) the salt content is 27 ppt. From the results of this experiment, it is known that a decrease in the salt content of 4 ppt is the best treatment for the growth of mud crabs, but has no effect on the survival value.

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The Identification Of Morphometric Characteristics And Fattenning Of Mud Crabs (Scylla spp.) In Para Island, Tatoareng District, Sangihe Islands Regency, North Sulawesi Province

JURNAL ILMIAH PLATAX ◽

10.35800/jip.7.1.2019.21491 ◽

2018 ◽

Vol 7 (1) ◽

pp. 42

Author(s):

Aditya Sasamu ◽

Winda M. Mingkid ◽

Revol D. Monijung

Keyword(s):

Body Weight ◽

The Body ◽

Scylla Serrata ◽

Morphometric Characteristics ◽

Morphometric Characters ◽

North Sulawesi ◽

Trash Fish ◽

Mangrove Crabs ◽

Mud Crabs

The purpose of this study was to identify the morphometric characters of mangrove crabs Scylla spp. and to grow them on the island of Para Sangihe Islands Regency, North Sulawesi Province. There were 2 types of crabs found during crab’s collection. However, the most abundant one was Scylla serrata while the olivacea is only one tail. The results of this study indicate that mangrove crabs that were kept for 2 weeks feed on trash fish three times a day experience growth. Based on the results of the study, it can be concluded that: the type of crab found on Pulau Para, Tatoareng District, Sangihe Islands Regency, North Sulawesi Province were mostly S. serrata (34 tails) and one tail of S. olivacea. The fattening of mangrove crabs showed results on the body weight and carapace length.Further research on mangrove crabs needs to be done on different aspects such as preferable food and time of the abundancy.Keywords: Crab, Scylla spp., identification, fattening. ABSTRAK Tujuan dari penelitian ini adalah untuk mengidentifikasi karakter morfometrik kepiting bakau Scylla spp dan cara penggemukannya di Pulau Para Kabupaten Kepulauan Sangihe Provinsi Sulawesi Utara. Dua jenis kepiting bakau ditemukan saat pengumpulan data, namun yang ditemukan paling banyak adalah Scylla serrata, sedangkan S. olivacea hanya 1 ekor saja.Hasil penelitian ini menunjukan bahwa kepiting bakau yang dipelihara selama 2 minggu dengan diberi pakan ikan rucah sebanyak tiga kali sehari mengalami pertumbuhan. Berdasarkan hasil penelitian dapat disimpulkan bahwa: jenis kepiting yang ditemukan di Pulau Para Kecamatan Tatoareng Kabupaten Kepulauan Sangihe Provinsi Sulawesi Utara adalah Scylla serrata (34 ekor) dan S. olivacea (1 ekor). Penggemukan kepiting bakau dengan pakan ikan rucah tiga kali sehari menunjukan adanya pertumbuhan berat badan dan panjang lebar karapas. Penelitian lanjutan tentang kepiting bakau perlu dilakukan untuk melihat berbagai aspek seperti makanan kesukaan dan waktu kelimpahanya.Kata kunci : Kepiting, Scylla spp, identifikasi, penggemukan.

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Isolation and Identification ofAcholeplasmasp. from the Mud Crab,Scylla serrata

Evidence-based Complementary and Alternative Medicine ◽

10.1155/2011/209406 ◽

2011 ◽

Vol 2011 ◽

pp. 1-5 ◽

Cited By ~ 3

Author(s):

Ji-Gang Chen ◽

Dan Lou ◽

Ji-Fang Yang

Keyword(s):

Cell Wall ◽

Scylla Serrata ◽

Rrna Gene ◽

Mud Crab ◽

Isolation And Identification ◽

A Cell ◽

First Time ◽

The 16S Rrna Gene ◽

Ferment Glucose ◽

Mud Crabs

For the first time, a mollicute-like organism (MLO) was cultured from moribund mud crabs (Scylla serrata) during an outbreak of clearwater disease in Zhejiang Province, China. The MLO displayed a fried-egg colony morphology in culture, did not possess a cell wall, and was not retained by 0.45 μm and 0.2 μm filters. It was able to ferment glucose, sucrose, lactose, and maltose, but it did not utilize arginine and urea. The MLO grew in the absence of bovine serum and was not susceptible to digitonin. Sequence analysis of the 16S rRNA gene revealed that this MLO had 99% identity withAcholeplasma laidlawiiPG-8A, which indicates that the organism isolated from mud crabs is a member of the genusAcholeplasma.

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