The IUCN Red List of Threatened Species™
ISSN 2307-8235 (online)
IUCN 2008: T178993A1556848
Cryptichthys jojettae, Cryptic Triplefin
Assessment by: Clements, K.D.
View on www.iucnredlist.org
Citation: Clements, K.D. 2014. Cryptichthys jojettae. The IUCN Red List of Threatened Species 2014:
e.T178993A1556848. http://dx.doi.org/10.2305/IUCN.UK.2014-3.RLTS.T178993A1556848.en
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THE IUCN RED LIST OF THREATENED SPECIES™
Taxonomy
Kingdom
Phylum
Class
Order
Family
Animalia
Chordata
Actinopterygii
Perciformes
Tripterygiidae
Taxon Name: Cryptichthys jojettae Hardy, 1987
Common Name(s):
• English:
Cryptic Triplefin, Tiger Blenny
Assessment Information
Red List Category & Criteria:
Least Concern ver 3.1
Year Published:
2014
Date Assessed:
May 4, 2010
Justification:
Cryptichthys jojettae is endemic to New Zealand. There are no known threats. It occurs within marine
protected areas. It is listed as Least Concern. We recommend further research on its life history
characteristics and ecology.
Geographic Range
Range Description:
Cryptichthys jojettae is endemic to both the North and South Islands of New Zealand, as well as the
Chatham Islands. It occurs within depths of 0-10 m. This species is moderately common within its
habitat.
Country Occurrence:
Native: New Zealand
FAO Marine Fishing Areas:
Native: Pacific - southwest
© The IUCN Red List of Threatened Species: Cryptichthys jojettae – published in 2014.
http://dx.doi.org/10.2305/IUCN.UK.2014-3.RLTS.T178993A1556848.en
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Distribution Map
© The IUCN Red List of Threatened Species: Cryptichthys jojettae – published in 2014.
http://dx.doi.org/10.2305/IUCN.UK.2014-3.RLTS.T178993A1556848.en
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Population
The mean number of individuals in a 5 x 2 m transect was approximately two individuals within its
preferred habitat of encrusting algae (Feary and Clements 2006). Though it is sometimes difficult to
observe, it is moderately common within its habitat.
Current Population Trend: Stable
Habitat and Ecology (see Appendix for additional information)
Cryptichthys jojettae is a demersal species that inhabits rock pools and surge zones, especially in
exposed areas. It is usually found on steep slopes or sides of boulders encrusted with invertebrates and
algae.
Systems: Marine
Use and Trade
Cryptichthys jojettae is not utilized.
Threats
There are no known threats to Cryptichthys jojettae.
Conservation Actions (see Appendix for additional information)
Cryptichthys jojettae occurs in marine protected areas.
Credits
Assessor(s):
Clements, K.D.
Reviewer(s):
Hines, A., Polidoro, B. & Carpenter, K.E.
© The IUCN Red List of Threatened Species: Cryptichthys jojettae – published in 2014.
http://dx.doi.org/10.2305/IUCN.UK.2014-3.RLTS.T178993A1556848.en
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Bibliography
Feary, D.A., Clements, K.D. 2006. Habitat use by tripleWn species (Tripterygiidae) on rocky reefs in New
Zealand. Journal of Fish Biology 69: 1031-1046.
IUCN. 2014. The IUCN Red List of Threatened Species. Version 2014.3. Available at: www.iucnredlist.org.
(Accessed: 13 November 2014).
Citation
Clements, K.D. 2014. Cryptichthys jojettae. The IUCN Red List of Threatened Species 2014:
e.T178993A1556848. http://dx.doi.org/10.2305/IUCN.UK.2014-3.RLTS.T178993A1556848.en
Disclaimer
To make use of this information, please check the Terms of Use.
External Resources
For Images and External Links to Additional Information, please see the Red List website.
© The IUCN Red List of Threatened Species: Cryptichthys jojettae – published in 2014.
http://dx.doi.org/10.2305/IUCN.UK.2014-3.RLTS.T178993A1556848.en
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Appendix
Habitats
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Habitat
Season
Suitability
Major
Importance?
9. Marine Neritic -> 9.2. Marine Neritic - Subtidal Rock and Rocky Reefs
-
Suitable
Yes
12. Marine Intertidal -> 12.1. Marine Intertidal - Rocky Shoreline
-
Suitable
Yes
Conservation Actions in Place
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Conservation Actions in Place
In-Place Land/Water Protection and Management
Conservation sites identified: Yes, over part of range
Occur in at least one PA: Yes
Research Needed
(http://www.iucnredlist.org/technical-documents/classification-schemes)
Research Needed
1. Research -> 1.2. Population size, distribution & trends
1. Research -> 1.3. Life history & ecology
Additional Data Fields
Distribution
Lower depth limit (m): 10
Upper depth limit (m): 0
Population
Population severely fragmented: No
© The IUCN Red List of Threatened Species: Cryptichthys jojettae – published in 2014.
http://dx.doi.org/10.2305/IUCN.UK.2014-3.RLTS.T178993A1556848.en
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The IUCN Red List Partnership
The IUCN Red List of Threatened Species™ is produced and managed by the IUCN Global Species
Programme, the IUCN Species Survival Commission (SSC) and The IUCN Red List Partnership. The IUCN
Red List Partners are: BirdLife International; Botanic Gardens Conservation International; Conservation
International; Microsoft; NatureServe; Royal Botanic Gardens, Kew; Sapienza University of Rome; Texas
A&M University; Wildscreen; and Zoological Society of London.
THE IUCN RED LIST OF THREATENED SPECIES™