Scylla serrata

Scylla serrata is a species of crab that is commonly known as the mud crab, mangrove crab, or black crab. It is a member of the family Portunidae and is widely distributed in the Indo-Pacific region.

Description

Scylla serrata is a large crab with a carapace width of up to 28 cm. It has a dark green to mottled brown coloration, with a pair of large and powerful claws. The carapace is wider than it is long, with four frontal teeth and six lateral teeth on each side.

Distribution and habitat

Scylla serrata is found in the coastal areas of the Indo-Pacific region, including the Red Sea, the Indian Ocean, and the Pacific Ocean. It inhabits estuaries, mangroves, and the lower reaches of rivers, and is often found in muddy or sandy bottoms.

Ecology and behavior

Scylla serrata is a nocturnal predator, feeding on a variety of organisms such as mollusks, smaller crabs, and detritus. It is also known to exhibit cannibalistic behavior. The crab is a key species in its ecosystem, playing a significant role in nutrient cycling and energy flow.

Economic importance

Scylla serrata is of high economic importance in many countries in the Indo-Pacific region. It is heavily fished for its meat, which is considered a delicacy. The crab is also farmed in several countries, including the Philippines, Thailand, and Indonesia.

Conservation

Overfishing and habitat destruction have led to a decline in the population of Scylla serrata in some areas. Efforts are being made to manage and conserve this species, including the establishment of marine protected areas and the implementation of sustainable fishing practices.

See also

• Crustacean
• Aquaculture
• Sustainable fishing

References

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  Mud crabs are caught, measured, tagged, and released as part of the research into the effectiveness of green zones in Moreton Bay

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  Indo-Pacific swamp crab total production thousand tonnes 1950-2022