Reproductive Biology of the Commercial Blue Crab Portunus pelagicus (L.) from the East Coast of the Red Sea

Reproductive biology is one of the biological aspects that needed to formulate responsible management of blue swimming crab (BSC). The crab is one of the commercial fisheries commodities in South Sulawesi, Indonesia. Presently no information on the reproductive biology of this crab from Spermonde Archipelago, Sout Sulawesi. Therefore, the study aimed to analyze and compare gonad maturity stage(GMS)andgonadalsomaticindex(GSI)oftheBSCcaughtonthreeecosystemsnamelycoralreef,seagrass,andmangrovein Salemo Island, Spermonde Archipelago. GMS and GSI were analyzed descriptively for five months from March to July 2015. Results indicate there was a difference in GMS of the BSC caught in mangroves, seagrass, and coral reef. Generally, mangrove was dominated by immature BSC with GMS I and GMS II, while the BSC caught in the seagrass and coral reef BSC were dominantly mature and spawn GMS III, IV, and V. GSI BSC caught in mangrove ecosystem are smaller than GSI BSC caught in seagrass and coral reef ecosystems. Seagrass and coral reef ecosystems suitable for development no-take zone of the BSC.

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Processing of waste of canning and swimming crab (Portunus pelagicus) in PT. Sumber Mina Bahari Rembang, Central Java

Journal of Marine and Coastal Science ◽

10.20473/jmcs.v7i2.20716 ◽

2020 ◽

Vol 7 (2) ◽

pp. 78

Author(s):

Sri Wulandari ◽

Heru Pramono

Keyword(s):

Solid Waste ◽

Blue Crab ◽

Negative Impact ◽

Liquid Waste ◽

Waste Processing ◽

Portunus Pelagicus ◽

Central Java ◽

Functional Product ◽

Waste Mangement ◽

Management Functions

Blue crab canning is a high protein, low fat, and multi functional product. Waste that produced from blue crab canning needs handling and processing that couldn’t make a negative impact to the enviroment. The study on waste management, is a very important for student because they can learn about how to make a canned blue crab directly from the factory, get to know about the waste implementation and also get to know about the problem that caused from the waste implementation management at PT. Sumber Mina Bahari Rembang, Central Java. The purpose from this activity is to get to know the implementation of waste mangement from blue crab canning ( Portunus pelagicus )PT. Sumber Mina Bahari Rembang, Central Java. According to Saptadewi (2013), the waste that produced from blue crab canning are solid waste and liquid waste. The solid waste are like blue crab shell, broken cans, and sand. Meanwhile the liquid waste are like the leftover water from production, sanitary needs, and boiling processing. The study have been done on January 23rd 2017 until February 21st 2017. This activity was held at at PT. Sumber Mina Bahari Rembang - TubanHighway 31st KM, Sumber Sari Village, Kragan Disctrict, Rembang Regency, Central Java. The waste that produced by PT. Sumber Mina Bahari are separeted in two types that liquid waste and solid waste. The waste has been processed quite well, it has been proven with a cooperative contract between PT. Sumber Mina Bahari with the Rembang City sanitary agency at a solid waste processing. The liquid waste certification shown that PT. Sumber Mina Bahari is very keeping the enviroment clean meanwhile the management functions like planning, organizing, actuating, controlling, and evaluating didn’t mention very well. It is happen because there is no special division in waste processing in between PT. Sumber Mina Bahari.

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