Seahorses of the Hippocampus coronatus complex: taxonomic revision, and description of Hippocampus haema, a new species from Korea and Japan (Teleostei, Syngnathidae)

Han, Sang-Yun; Kim, Jin-Koo; Kai, Yoshiaki; Senou, Hiroshi

doi:10.3897/zookeys.712.14955

Cited by 11 publications

(10 citation statements)

References 34 publications

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“…Seahorses are reef fishes belonging to the Syngnathidae family, with 42 species currently described (Lourie et al, 2016;Han et al, 2017). They are found all over the world in both tropical and sub-tropical waters (Lourie et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Population dynamics of the endangered seahorse Hippocampus reidi Ginsburg, 1933 in a tropical rocky reef habitat

Freret-Meurer¹,

Fernández²,

Okada³

et al. 2018

Anim. Biodiv. Conserv.

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Population dynamics of the endangered seahorse Hippocampus reidi Ginsburg, 1933 in a tropical rocky reef habitat. This study was conducted in Armação de Búzios, Brazil, a municipality where ecosystem degradation has been observed following large increases in tourism and population growth. The goal of this study was to determine seasonal variations in three Búzios populations of the long snout seahorse Hippocampus reidi. Monthly dives were conducted from November 2011 to October 2013. All three subpopulations had low densities of seahorses and no seasonality. The sex ratio differed at each site. The most commonly used microhabitats were the sponge Aplysina fulva and the seaweed Sargassum sp. There was no significant difference in temperature and salinity. The environmental trends could not explain the variation in seahorse density at the three beaches. The population showed no seasonality and no further decline.

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Section: Introductionmentioning

confidence: 99%

Population dynamics of the endangered seahorse Hippocampus reidi Ginsburg, 1933 in a tropical rocky reef habitat

Freret-Meurer¹,

Fernández²,

Okada³

et al. 2018

Anim. Biodiv. Conserv.

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“…To compare the seasonal feeding habits of H. haema during summer and winter, 14 specimens were collected from Geoje Hansan Bay in July (seven) and January (seven), when the seasonal characteristics were distinct. All the specimens were found in Sargassum piluliferum [8] and identified as the same species by DNA analysis [18]. There was no significant difference in mean SL and Wt by the two different seasons, but there was a relatively wider range in the mean SL and Wt in the July specimens.…”

Section: Discussionmentioning

confidence: 78%

“…Five seahorse species have been reported in South Korean waters, mainly in the seaweed and seagrass beds throughout the southern coast [8,9,[14][15][16][17]. Recently, H. haema, previously known as H. coronatus, was newly identified as a Korean species [18]. The first study on the morphometric characteristics and basic ecological data for the newly recorded Korean seahorse (H. haema) populations was conducted in Geoje-Hansan Bay [8].…”

Section: Introductionmentioning

confidence: 99%

Feeding Strategy of the Wild Korean Seahorse (Hippocampus haema)

Kim

Lee

et al. 2022

JMSE

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The feeding and spawning grounds for seahorses have been lost due to nationwide coastal developments in South Korea. However, little information on the feeding ecology of the Korean seahorse (Hippocampus haema) is currently available. The main objective in this study was to understand the feeding strategy of H. haema on the basis of DNA analysis of the contents of the guts. This is the first study on the feeding ecology of H. haema. Crustaceans were found to be major prey for H. haema in this study. Among the 12 identified species, arthropods were predominantly observed as potential prey of H. haema in this study. The Caprella sp. Was detected in all summer specimens followed by the Ianiropsis sp., whereas isopods were dominant, and amphipods accounted for a small proportion in winter specimens. According to the results in this study, there appears to be a seasonal shift in the major prey of H. haema. Moreover, a potential change in the habitats for adults was further discussed. Since this is a pilot study, further studies should be conducted for a better understanding of the feeding ecology of H. haema.

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“…Most molecular seahorse studies involved phylogeny reconstructions, particularly those on species in the traditional medicine trade (Table 5). Molecular studies were also used to determine the taxonomic status of some Hippocampus species [32,168,316,319], including new ones [72,[81][82][83]. They also found species that had been misidentified in local faunas [32].…”

Section: Use Of Molecular Tools In Hippocampus Diversity Researchmentioning

confidence: 99%

Diversity of Seahorse Species (Hippocampus spp.) in the International Aquarium Trade

Koning

Hoeksema

2021

Diversity

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Seahorses (Hippocampus spp.) are threatened as a result of habitat degradation and overfishing. They have commercial value as traditional medicine, curio objects, and pets in the aquarium industry. There are 48 valid species, 27 of which are represented in the international aquarium trade. Most species in the aquarium industry are relatively large and were described early in the history of seahorse taxonomy. In 2002, seahorses became the first marine fishes for which the international trade became regulated by CITES (Convention for the International Trade in Endangered Species of Wild Fauna and Flora), with implementation in 2004. Since then, aquaculture has been developed to improve the sustainability of the seahorse trade. This review provides analyses of the roles of wild-caught and cultured individuals in the international aquarium trade of various Hippocampus species for the period 1997–2018. For all species, trade numbers declined after 2011. The proportion of cultured seahorses in the aquarium trade increased rapidly after their listing in CITES, although the industry is still struggling to produce large numbers of young in a cost-effective way, and its economic viability is technically challenging in terms of diet and disease. Whether seahorse aquaculture can benefit wild populations will largely depend on its capacity to provide an alternative livelihood for subsistence fishers in the source countries. For most species, CITES trade records of live animals in the aquarium industry started a few years earlier than those of dead bodies in the traditional medicine trade, despite the latter being 15 times higher in number. The use of DNA analysis in the species identification of seahorses has predominantly been applied to animals in the traditional medicine market, but not to the aquarium trade. Genetic tools have already been used in the description of new species and will also help to discover new species and in various other kinds of applications.

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Seahorses of the Hippocampus coronatus complex: taxonomic revision, and description of Hippocampus haema, a new species from Korea and Japan (Teleostei, Syngnathidae)

Cited by 11 publications

References 34 publications

Population dynamics of the endangered seahorse Hippocampus reidi Ginsburg, 1933 in a tropical rocky reef habitat

Population dynamics of the endangered seahorse Hippocampus reidi Ginsburg, 1933 in a tropical rocky reef habitat

Feeding Strategy of the Wild Korean Seahorse (Hippocampus haema)

Diversity of Seahorse Species (Hippocampus spp.) in the International Aquarium Trade

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