ANDREAS DEWANTORO, - (2006) The subject of this Field Job Practice about Breeding Management of Carpet Cod (Epinephelus fuseoguttatus) in Bolai Budidaya Air Payau Situbondo at Pecaron village, district Kendit Situbondo regency, Province of East Java. Skripsi thesis, UNIVERSITAS AIRLANGGA.

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Abstract

Carpet cod (Epinephelus fuscoguttatus) is one of marine fishes that have been cultured in lndonesia and Southeast Asia countries. This grouper fish has several special quality such as ; it has a high selling price both in local and intemational market, a fast growth rate, and it is proved to have a good interest for public. The demand of fresh carpet cod gives an opportunity to export it to some countries as the consumer and stimulates local exporters to increase their production to the maximum rate. The purpose of this Job Field Practice is to get knowledge, experience and job skills, and to know the obstacles or problems on carpet cod breeding management. The work method used in this Field Job Practice is descriptive method in order to get primary and secondary data. the data taken through active participation, observation, interview and literature studies. The hatchery owned by govemment under Directory General of Cultured Fisheries of Fisheries and Marines Department. The water sources are from the sea with using seawater pump connected with paralon pipes. Measured water quality are in the rate of pH 7 — 8, with temperature 29 — 32 °C, and the salinity 32 — 35 ppt. The breeding process inquires using environment manipulation technique with broodstock ratio on male : female is : 4. Eggs production for one breeding process 8.000.000 — 20.000.000 grains. Hatching system is controlled with hatching rate approximately 94 — 97 %. The food needed during larval rearing are rotifera (Brachionus plicatilis), nauplii Artemia and pellets factory made. Diseases seen in the fish are often caused by fungi, parasite, and bacteria. Survival rate during larval rearing to nursery is 5 - 7 %. Business rentabilities is 53,3 % with refund or payback period seen after 4 cycles of production.

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