Mangrove Crab
Also known as: Alimango (Filipino name) · Mud crab (English name) · Mangrove mud crab · Scylla serrata (scientific name)
Definition
Mangrove crab (Scylla serrata), known in the Philippines as alimango, is a large swimming crab found in the estuaries and mangroves of Africa, Australia, and Asia, including throughout the Philippine archipelago. Deep green to dark brown and powerfully clawed, it burrows in muddy mangrove substrate and is prized above all other crabs in Filipino cooking — steamed, baked in garlic butter, or simmered in coconut milk as ginataang alimango. It is also the backbone of the country’s mud crab aquaculture and fattening industry, one of the world’s major producers. (Wikipedia)
Identities
| Source Type | Identity |
|---|---|
| Wikipedia | Scylla serrata |
| Wikidata | Q3544834 |
| DBpedia | Scylla_serrata |
| ProductOntology | N/A |
| Wiktionary | N/A |
| Library of Congress Subject Headings (LCSH) | Crabs |
| MeSH | N/A |
| NCBI Taxonomy | Scylla serrata |
| AGROVOC | mud crab |
| Google Scholar | Scylla serrata mud crab alimango Philippines mangrove aquaculture fattening |
| ConceptNet | crab |
| OpenCyc | N/A |
Also Known As
- Alimango (Filipino name)
- Mud crab (English name)
- Mangrove mud crab
- Scylla serrata (scientific name)
Examples and Analogies
- The Armored Bully of the Estuary: A full-grown alimango waving its crusher claw from a mud burrow plays the mangrove’s version of the schoolyard tough — all armor and pincers.
- Blue Swimming Crab’s Rich Cousin: Where alimasag brings delicate sweetness, alimango brings heft and fat — the crab that turns ginataan into a fiesta dish rather than an everyday ulam.
Usage Scenarios
1. Mud Crab Fattening Ponds
A coastal operator stocks lean crabs in mangrove-lined ponds and feeds them to market-grade heaviness for export and hotel buyers.
2. Market Selection for Ginataang Alimango
A cook chooses egg-heavy female alimango at the palengke, judging roe fullness by pressing under the apron, for a coconut-milk centerpiece dish.
Strategies
- Integrate crab pens with mangrove stands rather than converting them, since the nursery function of mangroves supplies wild seed stock for free.
- Target gravid females for hatchery production to reduce dependence on wild-caught juveniles, the industry’s main bottleneck.
Security and Safety Measures
- Handle live crabs from behind with a firm grip on the swimming legs; the claws of a large alimango can inflict serious pinches.
- Cook thoroughly and keep crabs alive-or-chilled until cooking, as crab meat spoils quickly and causes histamine poisoning when mishandled.
Historical Context
Mangrove crabs sustained estuarine communities in the Philippines long before recorded history, gathered from burrows at low tide and traded inland. The twentieth century brought deliberate aquaculture — hatching, grow-out, and fattening systems that now supply domestic markets and exports — while the same era’s mangrove conversion for ponds cut into the wild nursery grounds the species depends on, making mangrove-friendly crab culture a central theme of Philippine coastal resource management. (Wikipedia)
Challenges and Controversies
Mangrove-to-Pond Conversion
Historic clearing of mangroves for shrimp and crab ponds destroyed nursery habitat, pressuring the wild stocks the industry still draws on.
Seed Supply Bottleneck
Hatchery technology trails demand, so millions of wild juveniles are collected yearly, a practice ecologists warn is mining the fishery’s future.