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Holothuria difficilis

Source:IUCN

Taxonomy



 

Taxonomy in detail

Scientific name


 
Authority


 
Synonyms


 
Common names


 
Taxonomic sources
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Identification Information
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Taxonomic notes


 

Assessment Information

IUCN Red List Category and Criteria
Least Concern ver 3.1
Assessment language
English
Year published
2013
Date assessed
2010-05-18 00:00:00 UTC

Assessment Information in detail

Previously published Red List assessments


 
Regional assessments
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Assessor(s)


 
Reviewer(s)


 
Contributor(s)
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Facilitator(s) / Compiler(s)
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Partner(s) / Institution(s)
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Authority / Authorities
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Justification

This species is relatively widespread in the Indian and tropical-Pacific and eastern Pacific, and can be common in some parts of its range. It is not widely fished, and there are no other known threats. It is listed as Least Concern.

Geographic Range

Native
Extant (resident)
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Extant
-
Number of locations
-


 

Geographic Range in detail

FAO Fishing Areas
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Estimated area of occupancy (AOO) (km²)
Continuing decline in area of occupancy (AOO)
Extreme fluctuations in area of occupancy (AOO)
Estimated extent of occurrence (EOO) (km2)
Continuing decline in extent of occurrence (EOO)
Extreme fluctuations in extent of occurrence (EOO)
Continuing decline in number of locations
Extreme fluctuations in the number of locationsN
RANGE DESCRIPTION
This species is found throughout the Red Sea and Indo-Pacific, from Madagascar, Seychelles, and Comoros, India and the Maldives and Andaman Islands to Micronesia and eastward to the Galapagos and Cocos Islands and from Mexico to Ecaudor.  It is also found in the China Sea, south Japan, northwest Australia and Hawaii.

Population

Current population trend
Unknown
Number of mature individuals
-
Population severely fragmented
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Continuing decline of mature individuals
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Population in detail

Extreme fluctuations
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No. of subpopulations
-
Continuing decline in subpopulations
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Extreme fluctuations in subpopulations
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All individuals in one subpopulation
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No. of individuals in largest subpopulation
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Description
This is not a common species, but it occurs in high densities when it is found.

Habitat and Ecology

System
Marine
Number of mature individuals
-
Continuing decline in area, extent and/or quality of habitat
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Generation length (years)
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Congregatory
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Movement patterns
-

Habitat and Ecology in detail

Habitat and Ecology
This species is found on outer reef flats. It is a small cryptic species whose population can be very dense under boulders (Conand and Mangion 2002).
Classification scheme
Habitats Suitability Major importance

Threats

Use trade
This species has no known commercial value.
Residential & commercial development
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Agriculture & aquaculture
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Energy production & mining
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Transportation & service corridors
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Biological resource use
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Human intrusions & disturbance
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Natural system modifications
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Pollution
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Geological events
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Climate change & severe weather
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Threats in detail

Threats
There are no known major threats to this species.
Classification scheme Threats
title scope timing score severity

Use trade

Use trade
This species has no known commercial value.

Text summary


Text summary in detail

Conservation Actions Information
There are no known species specific conservation measures for this species.
About us
本项目由中国科学院A类战略先导专项“地球大数据科学工程”及中国科学院十三五信息化建设专项“科学大数据工程”提供支持,旨在整合物种的评估与保护信息,为生物多样性保护提供数据支持。
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