Quadrats were made in El Salado Estuary, Puerto Vallarta, Jalisco, México. An area of m 2 was covered, burrows of C. crassum. Author: Smith, Family: Gecarcinidae. Synonyms: Cardisoma latimanus. Photography: Arthur Anker. Scientific data: Coiba National Park, Panama. WoRMS. Cardisoma Crassum. Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current.

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Before reintroducing crabs in any given site, crab characteristics are recorded for each individual: The first monitoring is performed three days after repopulation, one monitoring in the second month after the repopulation, and then monitoring every three months thereafter.

The basic conditions necessary include that the site is located near a body of water and has plants used for food by crabs, such as romero Sesuvium portulacastrumstraw Cyperus rotundusranconcha Acrostichum aureum and others. Part of a quadrant used for indirect sampling in Community Portovelo. At present, she is President of the National Coordinating Corporation for the Defense of Mangrove Ecosystems, which is a network comprised of organizations of artisanal fishermen, gatherers and members of the Council of the International Mangrove Network.

Several communities are cardksoma on the banks of mangroves, and these people engage in activities dependent on mangroves, such as fishing and gathering shellfish.

Land crab feeding (Cardisoma crassum)

The mouthless crab Cardisoma crassum is a species of terrestrial crab from Family Gecarcinidaewith a bluish purple carapace, claws, and red legs. As additional measures, it is prohibited to catch crabs with sizes smaller than 7. In order to reintroduce new individuals to an existing population, crab individuals are captured in estuaries with similar conditions to the estuary where the reintroduction is to be done.

Due to the degradation of the mangrove ecosystem within the estuary, and continued shrimp industry activities which occupy almost the entire area that was historically mangroves and salt ponds, it is difficult to conduct a thorough restoration process; However, the FIDES Foundation and local communities implement restoration processes in certain areas through red mangrove reforestation Rhizophora mangleand recovery of mangrove species such as shell Anadara similis and Anadara tuberculosa and mouthless crab Cardisoma crassum.


It is unlikely that current policies and authorities are able to resolve all of the issues highlighted above in the short term; however, it is important to promptly initiate actions for ecosystem restoration.

Occurs during the crab growth period, when these crabs molt their carapace for a larger one. Making artificial burrows artificiales.

Land crab (Cardisoma crassum), female with eggs, Panama

The first results of this pilot project will be available Decemberwhich will be shared when available. Napa works in dardisoma tourism, and promotes organizational strengthening and mangrove restoration activities in communities. The main problems faced by these families are:.

The total number of traps depends on the size of the site, and the traps are somewhat randomly placed, considering only the size of burrows and location of burrows. The process of ecological restoration of mangrove ecosystems in the Chone River estuary first requires a series of activities to reduce the main causes of deterioration, including mangrove restoration, which allows for the recovery of optimal conditions to recuperate the productive capacity of the ecosystem and its ecological functions.

In addition to serving as food for other animals, the mouthless crab helps conserve the mangrove ecosystem, as it accelerates the decomposition of organic matter during feeding. Then, cxrdisoma baseline cardiwoma established using indirect methods, by which the number and status of burrows are verified to indirectly estimate the density, structure and biomass of the population. It is particularly important to empower families who harvest crabs, especially in the reintroduction and monitoring of the mouthless crab.

A woman gathering mangrove clams. Dead crab found three days after repopulation. In the Chone River estuary, the mouthless crab population has declined drastically in recent decades, mainly due to the mangrove deforestation by the shrimp farming industry, which has also led to the disappearance of a number of species in the estuary. For this reason, community organizations in the Chone River estuary have worked towards the conservation, management and sustainable commercialization of the mouthless crab, and to carry out activities to increase local species populations in situ.

A strong, above ground root system stabilizes the shoreline by reducing erosion by providing protection from waves and tides Protective barrier coasts: Produce oxygen and capture a high quantity of carbon dioxide from the air Reproductive zone: Ministerial Agreementpublished in the Official Gazette from March 3, The trap contains food bait to lure the crabs in.


As mangrove destruction has caused a decrease or extinction of a number of important species, including fish, clam, and crabs, that are an important source of food and income for local communities, community tourism creates an alternative activity that generates income for these communities, and cradisoma these communities to maintain their connection with mangroves. It is terrestrial and live in J-shaped burrows which are one or two meters deep, built in drier soils carrdisoma mangrove forests and in transition areas of humid or dry forests, as long as there is a brackish water source nearby.

As a pilot project, these processes include the use of both ancestral knowledge from communities, and scientific knowledge from professionals. Ministerial Agreement of January 13, Crabs caught in the monitoring traps. As a women leader to the Ecuadorian people living in mangrove communities, Mrs.

Measuring mouthless crab carisoma trapped during monitoring. A direct monitoring is performed on site, collecting all the dead crabs found at the site, to identify the percentage of deaths by sex.

Cardisoma crassum – Wikipedia

Growing participation in these families allows for the following:. Within the mangroves, there are transit easements and paths that have been traveled ancestrally.

Crab entering an artificial burrow. Also, mangroves have been ancestral sources of food supply, used for charcoal and salt extraction, timber and firewood, tannins, medicinal herbs, and recreational activities including tourism.

Produce leaf litter and export biomass Stabilizes microclimates: An important example of this is the recovery of the Mouthless crab in situ, in a process that combines ancestral knowledge and practices with new technical knowledge.