Hippocampus sindonis

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	ACTINOPTERYGII	SYNGNATHIFORMES	SYNGNATHIDAE

Scientific Name:

Hippocampus sindonis

Species Authority:

Jordan & Snyder, 1901

Common Name/s:

English

–

Dhiho's Seahorse, Shiho's Seahorse

Taxonomic Notes:

The species has often been misidentified as H. coronatus or H. mohnikei, but re-examination of the type specimens suggests that these are three separate species (Lourie et al. 1999).

Assessment Information [top]

Red List Category & Criteria:

Data Deficient ver 3.1

Year Assessed:

2003

Assessor/s

Project Seahorse

Evaluator/s:

Foster, S.J., Marsden, A.D. & Vincent, A.C.J. (Syngnathid Red List Authority)

Justification:
There are no published data about population trends or total numbers of mature animals for this species. There is very little available information about its extent of occurrence or its area of occupancy. There have been no quantitative analyses examining the probability of extinction of this species. As a result, the assessors have insufficient data to properly assess the species against any of the IUCN criteria.

Hippocampus sindonis previously was listed in 1996 as VU A2cd under the 1994 criteria. This assessment was based on suspected past declines in occupancy, occurrence and habitat, as well as on potential levels of exploitation. In reassessing the species with greater taxonomic understanding and under the new criteria we find no appropriate data on biology and ecology, habitat, abundance and distribution are available for this species. Further research is needed. Assessed as Data Deficient under the new criteria.

History:

1996

–

Vulnerable

Geographic Range [top]

Range Description:	Hippocampus sindonis is endemic to Japan.
Countries:	Native: Japan
FAO Marine Fishing Areas:	Native: Pacific – northwest

Population [top]

Population Trend:	Unknown

Population Trend:

Unknown

Habitat and Ecology [top]

Habitat and Ecology:	This species may be particularly susceptible to decline. All seahorse species have vital parental care, and many species studied to date have high site fidelity (Perante et al. 2002, Vincent et al., in review), highly structured social behaviour (Vincent and Sadler 1995), and relatively sparse distributions (Lourie et al. 1999). The importance of life history parameters in determining response to exploitation has been demonstrated for a number of species (Jennings et al. 1998).
Systems:	Marine

Habitat and Ecology:

This species may be particularly susceptible to decline. All seahorse species have vital parental care, and many species studied to date have high site fidelity (Perante et al. 2002, Vincent et al., in review), highly structured social behaviour (Vincent and Sadler 1995), and relatively sparse distributions (Lourie et al. 1999). The importance of life history parameters in determining response to exploitation has been demonstrated for a number of species (Jennings et al. 1998).

Systems:

Marine

Threats [top]

Major Threat(s):	Unknown. May be potentially involved in trade. The restricted range of this species may also leave it susceptible to exploitation.

Major Threat(s):

Unknown. May be potentially involved in trade. The restricted range of this species may also leave it susceptible to exploitation.

Conservation Actions [top]

Conservation Actions:	The entire genus Hippocampus was listed in Appendix II of CITES in November 2002. Implementation of this listing will begin May 2004. Very few data are available for this species. No information on population status is available. Appropriate data on biology and ecology, habitat, abundance and distribution are not available. Further research on this species is needed.

Conservation Actions:

The entire genus Hippocampus was listed in Appendix II of CITES in November 2002. Implementation of this listing will begin May 2004. Very few data are available for this species. No information on population status is available. Appropriate data on biology and ecology, habitat, abundance and distribution are not available. Further research on this species is needed.

Citation:	Project Seahorse 2003. Hippocampus sindonis. In: IUCN 2009. IUCN Red List of Threatened Species. Version 2009.2. <www.iucnredlist.org>. Downloaded on 10 February 2010.
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