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Snails & Conch

Snails & Conch

Snails and Conch are Mollusks that can be found in the coral reef ecosystem. Snails and Conch often graze on algae, but can bring harm to coral in the process.

CMap

Algae are aquatic, photosynthetic plant-like organisms and include calcareous macroalgae, fleshy macroalgae, turf algae, and crustose coralline algae. Aquarium Stock is aquatic life that humans collect for sale to commercial aquariums or individual hobbyists. Arthropods are invertebrates with jointed limbs and segmented bodies, such as lobster, crab, and shrimp. Sand production is the process by which calcified coral skeletons and invertebrate shells break down, forming sand which replenishes beaches. Biocriteria are narrative expressions or numeric values that describe the biological condition (structure and function) of aquatic communities inhabiting waters of a designated aquatic life use. Biological Harvest is the collection of living things from the ecosystem for recreation, consumption, or sale of marine products. Biological monitoring is the use of a biological entity as a detector and its response as a measure to determine environmental conditions. Biological monitoring, mapping, and scientific research are activities to track the condition of populations, communities, and habitat, and to understand the processes, stressors, and ecological interactions that affect that condition. Bivalves are a class of molluscs known for their hinged shells, including clams, oysters, and scallops. A number of reef organisms, including stony coral, calcareous macroalgae, crustose coralline algae, crustaceans, mollusks, and bivalves, deposit calcium carbonate (CaCO3) during growth to form hard skeletons or shells. Carbon storage and cycling is the ability of an ecosystem to utilize, process, and store carbon. Complex habitat and resources reflects the complex architecture of sessile, plant-like organisms, such as octocoral and sponges, which provides shelter and protection for small fish and other invertebrates from predators. Contact Uses, such as biological additions, physical damage, and biological harvesting, are activities in which humans create pressures through direct contact with the ecosystem. Coral is a colonial marine animal consisting of polyps. Cultural services are the nonmaterial benefits people obtain from ecosystems through spiritual enrichment, cognitive development, recreational opportunities, aesthetic experiences, sense of place, and educational and research opportunities. Designating protected species is the process of legally establishing a species as threatened, endangered, or of special concern, often requiring that critical habitat must be designated as well and recovery plans implemented. Discharges are the intentional or unintentional distribution of chemicals, debris, or other pollution, into the environment as a consequence of human activities. Echinoderms are radially symmetrical marine invertebrates, such as starfish and sea urchins. Ecosystem monitoring and restoration refers to responses to directly alter the condition of the reef ecosystem through restoration or remediation activities, setting limits on degradation through biological criteria or water quality criteria, or improving knowledge through monitoring, mapping, and scientific research. Ecosystem services are the benefits people obtain from ecosystems . Finfish and shellfish stock are fish (e.g., groupers and snappers) and invertebrates (e.g., lobster, crab, conch, octopus, squid, and bivalves) that are harvested for human consumption as seafood. Invertebrate Harvesting is the act of collecting marine invertebrates, including sponges, lobsters, and other invertebrates, for seafood or other marine products. An Invertebrate is any animal that lacks a backbone. Invertivorous fish are fish that primarily feed on invertebrates. Landscape Changes are alterations of the natural landscape through human activities, including coastal development, shoreline armoring, impervious surfaces, deforestation, or soil disturbance, which can alter water flow patterns and lead to pollutant runoff into coastal systems. Lobster, Crab, and Shrimp are crustaceans that can be found in coral reef ecosystems. Marine products are non-food goods derived from reefs that promote human well-being (e.g, aquarium fish or ornamental resources) and human health (e.g., pharmaceuticals and cosmetics). Any worm that lives in a marine environment is considered a marine worm. Microorganisms are microscopic plants or animals, such as cyanobacteria and disease-causing pathogens that live in coral reef ecosystems. Molluscs are marine invertebrates with soft, unsegmented bodies, such as clams, squid, and snails. Octopi and Squid are Mollusks that can be found in coral reef ecosystems. The Reef Ecosystem includes a suite of abiotic variables that form the physical and chemical environment. Pressures are human activities that create stress on the environment. Provisioning services are the products or ecosystem goods obtained from ecosystems, including seafood, genetic and biochemical resources, pharmaceuticals, ornamental resources, and water resources. The state of the Reef Ecosystem is the condition, in terms of quantity and quality, of the abiotic and biotic components including physical, chemical, and biological variables. Reef Habitat is the abundance, distribution, and condition of the benthic components of the reef ecosystem. Reef Inhabitants are all of the motile components of the reef ecosystem, including fish, invertebrates, marine reptiles and mammals, and are quantified by their abundance, distribution, and condition. Reef Life is the abundance, distribution, and condition of the biological components of the coral reef ecosystem. Responses are actions taken by groups or individuals in society and government to prevent, compensate, ameliorate or adapt to changes in Ecosystem Services or their perceived value. Sea Urchins are small, spiny echinoderms that can be found in coral reef ecosystems. Seastars are echinoderms that are notable for their five arms that extend from their central body. Snails and Conch are Mollusks that can be found in the coral reef ecosystem. Socio-Economic Drivers include the sectors that fulfill human needs for Food & Raw Materials, Water, Shelter, Health, Culture, and Security, and the Infrastructure that supports the sectors. Supporting services are ecological processes that indirectly benefit humans by maintaining a functional ecosystem for the production of other ecosystem goods and services. Wetland and reef restoration are activities to directly improve, reestablish, or repair degraded ecosystems.

CMap Description

Snails & conch graze coral, providing a link in the trophic food web as they are consumed by humans. The calcium carbonate deposition by some species ultimately contributes to sand & land production through the processing of other marine organisms. A few species are important as aquarium stock for marine products, and all species are important to cultural services of coral reefs. Socio-economic drivers lead to snail & conch removal & mortality through harvesting pressures; also, the survival, growth, and reproduction of molluscs are reduced by disease causing microorganisms and a disturbed physical & chemical environment. Biological monitoring, mapping, and restoration is needed to identify changes in the abundance and condition of snails & conch; and ultimately, determine the appropriate responses to maintain the supply of ecosystem services and ensure the benefits to human health and well-being.

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