Small Giant Clam

Tridacna maxima (Röding 1798)

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Tridacna maxima (Small Giant Clam) is a species of mussels in the family Cardiidae. This species is extinct. They are listed in cites appendix ii. They are surficial modifiers. Individuals could grow to 35 cm. They have sexual reproduction. They are sessile animals.

URI: http://eol.org/schema/terms/extinct
Definition: A taxon is Extinct when there is no reasonable doubt that the last individual has died. A \r\ntaxon is presumed Extinct when exhaustive surveys in known and/or expected habitat, \r\nat appropriate times (diurnal, seasonal, annual), throughout its historic range have failed \r\nto record an individual. Surveys should be over a time frame appropriate to the taxon’s life cycle and life form.
Attribution: http://www.iucnredlist.org/technical-documents/categories-and-criteria

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URI: http://eol.org/schema/terms/CITES_II
Definition: Appendix II lists species that are not necessarily now threatened with extinction but that may become so unless trade is closely controlled. It also includes so-called "look-alike species", i.e. species whose specimens in trade look like those of species listed for conservation reasons. International trade in specimens of Appendix-II species may be authorized by the granting of an export permit or re-export certificate. No import permit is necessary for these species under CITES (although a permit is needed in some countries that have taken stricter measures than CITES requires). Permits or certificates should only be granted if the relevant authorities are satisfied that certain conditions are met, above all that trade will not be detrimental to the survival of the species in the wild. (See Article IV of the Convention)
Source: https://www.speciesplus.net/#/taxon_concepts/8327/legal

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URI: https://eol.org/schema/terms/surficialModifier
Definition: bioturbating fauna with activities restricted to the sediment layer immediately below the sediment surface
Attribution: S. Lindqvist, Engelbrektsson, Eriksson, Hulth. 2016. Functional classification of bioturbating macrofauna in marine sediments using time-resolved imaging of particle displacement and multivariate analysis. Biogeosciences Discuss, 13 Oct. 2016. doi:10.5194/bg-2016-411.

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URI: http://purl.obolibrary.org/obo/GO_0019953
Definition: Capable of creating a new organism by combining the genetic material of two gametes, which may come from two parent organisms or from a single organism, in the case of self-fertilizing hermaphrodites.

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URI: http://www.wikidata.org/entity/Q1759860
Definition: organisms that do not possess a means of self-locomotion and are normally immobile

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EOL has data for 40 attributes, including:

Body symmetry
- URI: http://eol.org/schema/terms/body_symmetry
- Definition: overall repetitive or reflective pattern in the body of one individual of this taxon. eg: bilateral symmetry, rotational symmetry, radial symmetry
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bilaterally symmetric
- URI: http://purl.obolibrary.org/obo/PATO_0001324
- Definition: being symmetric about a plane running from frontal end to caudal end (head to tail), and having nearly identical right and left halves
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body length
- URI: http://purl.obolibrary.org/obo/CMO_0000013
- Definition: A measurement of the longest dimension of a body, typically between two distinct ends of the body.
- Attribution: [database_cross_reference: Dorland:Dorlands_Illustrated_Medical_Dictionary--31st_Ed] [database_cross_reference: ISBN:978-1416049982]
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25 cm
body volume
- URI: http://eol.org/schema/terms/BodyVolume
- Definition: Volume occupied by the whole body of one individual of this taxon
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3.82 cm^3
ecomorphological guild
- URI: http://eol.org/schema/terms/EcomorphologicalGuild
- Definition: organisms that share certain morphological traits due to adaptation to similar environments and ecological roles
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substrate-attached
- URI: http://eol.org/schema/terms/Attached
- Definition: This organism is normally physically attached to the substrate upon which it lives
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ecosystem engineering
- URI: http://polytraits.lifewatchgreece.eu/terms/RW
- Definition: directly or indirectly modulating the availability of resources to other species, by causing physical state changes in biotic or abiotic materials; modifying, maintaining and/or creating habitats
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surficial modifier
- URI: https://eol.org/schema/terms/surficialModifier
- Definition: bioturbating fauna with activities restricted to the sediment layer immediately below the sediment surface
- Attribution: S. Lindqvist, Engelbrektsson, Eriksson, Hulth. 2016. Functional classification of bioturbating macrofauna in marine sediments using time-resolved imaging of particle displacement and multivariate analysis. Biogeosciences Discuss, 13 Oct. 2016. doi:10.5194/bg-2016-411.
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first appearance
- URI: http://eol.org/schema/terms/FossilFirst
- Definition: The first appearance of this taxon in the fossil record.
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pleistocene epoch
- URI: http://resource.geosciml.org/classifier/ics/ischart/Pleistocene
- Attribution: International Chronostratigraphic Chart: http://www.stratigraphy.org/index.php/ics-chart-timescale
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geographic distribution includes
- URI: http://eol.org/schema/terms/Present
- Definition: This organism is known to be present in this location or region. Not exclusive; other regions may also be reported.
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Red Sea
- URI: http://www.marineregions.org/mrgid/4264
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number of fossil occurrences
- URI: http://eol.org/schema/terms/fossilOccPBDB
- Definition: The number of fossil occurrences in the Paleobiology Database (https://paleobiodb.org) that are identified as belonging to a particular taxon or any of its subtaxa.
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10
trophic guild
- URI: http://eol.org/schema/terms/TrophicGuild
- Definition: A group of species that exploit the same food resources, and/or use the same feeding or foraging methods. http://en.wikipedia.org/wiki/Guild_(ecology)
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filter feeder
- URI: http://www.wikidata.org/entity/Q1252491
- Definition: a sub-group of suspension feeding animals that feed by straining suspended matter and food particles from water, typically by passing the water over a specialized filtering structure
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type specimen repository
- URI: http://eol.org/schema/terms/TypeSpecimenRepository
- Definition: The institution that holds a type specimen for a given species. The recommended best practice is to use the identifier in a collections registry such as the Biodiversity Collections Index (http://www.biodiversitycollectionsindex.org/).
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NHMUK
used for
- URI: http://eol.org/schema/terms/Uses
- Definition: The uses of the organism or products derived from the organism.
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food
- URI: https://www.wikidata.org/entity/Q2095
- Definition: any substance consumed to provide nutritional support for the body
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wet body mass
- URI: http://eol.org/schema/terms/bodyMassWet
- Definition: Mass of one individual of this taxon, living or fresh, without desiccation
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6.69 g

Known occurrences, collected specimens and observations of Small giant clam. View this species on GBIF

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