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Hippocampus ingens  Girard, 1858

Pacific seahorse
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| Native range | All suitable habitat | PointMap | Year 2050 |
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Hippocampus ingens   AquaMaps   Data sources: GBIF OBIS
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Image of Hippocampus ingens (Pacific seahorse)
Hippocampus ingens
Picture by Lavan, J.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Syngnathiformes (Pipefishes and seahorses) > Syngnathidae (Pipefishes and seahorses) > Hippocampinae
Etymology: Hippocampus: Greek, ippos = horse + Greek,kampe = curvature (Ref. 45335).   More on author: Girard.

Environment / Climate / Range Ecology

Marine; reef-associated; non-migratory; depth range 0 - 60 m (Ref. 30915), usually 3 - 18 m (Ref. 5227).   Subtropical

Length at first maturity / Size / Weight / Age

Maturity: Lm 5.4  range ? - ? cm
Max length : 30.0 cm TL male/unsexed; (Ref. 2850)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 18-21.

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eastern Pacific: San Diego in California, USA to Peru including the Galapagos Islands. International trade is monitored through a licensing system (CITES II, since 5.15.04) and a minimum size of 10 cm applies. Reported from the San Francisco Bay by Alexander Agassiz (Ron Fritzsche, pers.comm. 08/09).

Biology     Glossary (e.g. epibenthic)

Nocturnal. Occur in offshore waters, mostly captured by dredging at 10 m or deeper. Occasionally caught at surface. Are often camouflaged within the branches of gorgonians and black coral trees where they are seen to curl their tail around the branches (Ref. 5227). Have been found in the stomachs of Pacific yellowfin tuna and bluefin tuna (Ref. 30915). Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

Lourie, S.A., A.C.J. Vincent and H.J. Hall, 1999. Seahorses: an identification guide to the world's species and their conservation. Project Seahorse, London. 214 p.

IUCN Red List Status (Ref. 90363)

  Vulnerable (VU) (A2cd+4cd)

CITES (Ref. 94142)

Threat to humans

  Harmless




Human uses

Fisheries: commercial; aquarium: commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | Public aquariums | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00676 (0.00242 - 0.01892), b=2.93 (2.69 - 3.17), based on LWR estimates for this Subfamily-BS (Ref. 93245).
Trophic Level (Ref. 69278):  3.3   ±0.38 se; Based on food items.
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (tm=0.3-0.4).
Vulnerability (Ref. 59153):  Low to moderate vulnerability (27 of 100) .
Price category (Ref. 80766):   Unknown.