Seasonal abundance, distribution and recruitment of mud crabs (Scylla spp.) in replanted mangroves
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The abundance and distribution of mud crabs were studied in a replanted mangrove forest in Buswang, Aklan, Philippines. Two fishing gears, lift nets and bamboo traps, were used to monitor relative abundance of Scylla spp. populations from March 2002 to December 2003 inside the mangrove forest. A third gear, a stakenet set across a creek, was used to monitor crabs migrating out of the mangroves during the ebb tide. Scylla olivacea formed 99.3% and 70.3% of the catch in the mangrove and the stakenet, respectively. The percentage of Scylla tranquebarica increased from <1% in the mangrove catches to 29% in the stakenet. Scylla serrata was present at very low levels in both catches. The lack of modal progression in the size–frequency plots and the year-round catch rate of gravid females suggested that recruitment was constant throughout the year. Even though relative abundance decreased over the study period indicating that the stock is being over-exploited, mud crab production is more than equivalent to that of most natural mangroves.
การอ้างอิงWalton, M. E., Le Vay, L., Lebata, J. H., Binas, J., & Primavera, J. (2006). Seasonal abundance, distribution and recruitment of mud crabs (Scylla spp.) in replanted mangroves.
- AQD Journal Articles 
Evaluation of hatchery-based enhancement of the mud crab, Scylla spp., fisheries in mangroves: comparison of species and release strategies Lebata, Ma. Junemie Hazel L.; Le Vay, Lewis; Walton, Mark E.; Biñas, Joseph B.; Quinitio, Emilia T.; Rodriguez, Eduard M.; Primavera, Jurgenne (CSIRO Publishing, 2009)Ranching, stock enhancement and restocking are management approaches involving the release of wild or hatchery-bred organisms to enhance, conserve or restore fisheries. The present study, conducted from April 2002 to ...
Mud crab pen culture: replacement of fish feed requirement and impacts on mangrove community structure Primavera, Jurgenne; Binas, Joseph B.; Samonte-Tan, Giselle P. B.; Lebata, Ma. Junemie J.; Alava, Veronica R.; Walton, Mark; LeVay, Lewis (Blackwell Publishing, 2010)Brackishwater pond culture has been a major factor in mangrove loss in Southeast Asia, hence, the need to develop environment-friendly technologies such as mud crab Scylla (Portunidae) culture in mangrove pens exists. This ...
Cerezo, Rolando B.; Tapia, Mariel C. (Aquaculture Department, Southeast Asian Fisheries Development Center, 2017)The study was conducted to identify the mud crab species (Scylla spp.) that thrive in 12 coastal municipalities and 2 cities in Pangasinan. Ten mud crab samples were taken from each of the sampling site and classified based ...