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Hippocampus ingens Girard, 1858

Pacific seahorse
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Native range | All suitable habitat | Point map | 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(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Syngnathiformes (Pipefishes and seahorses) > Syngnathidae (Pipefishes and seahorses) > Syngnathinae
Etymology: Hippocampus: Greek, ippos = horse + Greek,kampe = curvature (Ref. 45335).
More on author: Girard.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; reef-associated; non-migratory; depth range 0 - 60 m (Ref. 30915), usually 3 - 18 m (Ref. 5227). Subtropical; 37°N - 22°S, 123°W - 70°W

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

Eastern Pacific: confirmed records from San Diego in California, USA to Peru including the Galapagos Islands. Reported from the San Francisco Bay by Alexander Agassiz (Ron Fritzsche, pers.comm. 08/09).

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 Identification keys | Morphology | Morphometrics

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

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).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Male carries the eggs in a brood pouch (Ref. 205). Gestation period is 14-15 days depending on temperature (Ref. 30915).

Main reference Upload your references | References | Coordinator | Collaborators

Lourie, S.A., R.A. Pollom and S.J. Foster, 2016. A global revision of the seahorses Hippocampus Rafinesque 1810 (Actinopterygii: Syngnathiformes): taxonomy and biogeography with recommendations for further research. Zootaxa 4146(1):1-66. (Ref. 115213)

IUCN Red List Status (Ref. 130435: Version 2024-2)

  Vulnerable (VU) (A2cd); Date assessed: 05 December 2016

CITES


CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial; aquarium: commercial
FAO - Publication: search | FishSource |

More information

Trophic ecology
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Diet composition
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Length-weight rel.
Length-length rel.
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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | Public aquariums | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 19.1 - 28.5, mean 24.3 °C (based on 131 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00447 (0.00175 - 0.01142), b=2.99 (2.77 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.3   ±0.38 se; based on food items.
Resilience (Ref. 120179):  High, minimum population doubling time less than 15 months (tm=0.3-0.4).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (20 of 100).
Price category (Ref. 80766):   Unknown.
Nutrients (Ref. 124155):  Calcium = 71.1 [33.9, 167.8] mg/100g; Iron = 1.28 [0.60, 2.43] mg/100g; Protein = 18.7 [17.3, 20.0] %; Omega3 = 0.164 [0.069, 0.364] g/100g; Selenium = 32.1 [12.6, 86.2] μg/100g; VitaminA = 22.8 [5.6, 102.3] μg/100g; Zinc = 1.08 [0.61, 1.78] mg/100g (wet weight);