|Scientific Name:||Hippocampus coronatus|
|Species Authority:||Temminck & Schlegel, 1850|
|Taxonomic Notes:||The name H. coronatus has often been applied to H. sindonis in the past. Morphometric (Lourie et al. 1999) and genetic (Mukai et al. 2000) research suggest that these two are not the same species. Mukai et al.’s (2000) data also suggest that H. coronatus is distinct from H. mohnikei.|
|Red List Category & Criteria:||Data Deficient ver 3.1|
|Reviewer(s):||Marsden, A.D., Foster, S.J. & Vincent, A.C.J. (Syngnathid Red List Authority)|
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 coronatus previously was listed in 1996 as VU A2cd under old 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 under the new criteria and with greater taxonomic understanding we find that no appropriate data on biology and ecology, habitat, abundance or distribution are available for this species. Further research is needed. Assessed as Data Deficient under the new criteria.
|FAO Marine Fishing Areas:||
Pacific – northwest
|Range Map:||Click here to open the map viewer and explore range.|
|Habitat and Ecology:||
Hippocampus coronatus are found among Sargassum, close to shore (Masuda et al. 1984). The breeding season of this species is June to July (Masuda et al. 1984).
This species may be particularly susceptible to decline. The limited information on habitat suggests they inhabit shallow sea-grass beds (Masuda et al. 1984) that are susceptible to human degradation, as well as making them susceptible to being caught as bycatch. 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).
|Major Threat(s):||Project Seahorse trade surveys conducted between 2000–2001 indicated that the trade in H. coronatus appears to be quite small (B. Kwan, unpublished data). It is only found in Japan (from Hokkaido to Kyushu; Nakabo 2000), and while it is not targeted in any fishery, it may be caught incidentally in other fisheries (B. Kwan, unpublished data).|
|Conservation Actions:||The entire genus Hippocampus was listed in Appendix II of CITES in November 2002. Implementation of this listing will begin May 2004. Further research on this species biology, ecology, habitat, abundance, and distribution is needed.|
|Citation:||Project Seahorse 2003. Hippocampus coronatus. The IUCN Red List of Threatened Species. Version 2015.2. <www.iucnredlist.org>. Downloaded on 29 July 2015.|
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