Jayakar's Seahorse
Jayakar's seahorse
Jayakar's seahorse
Jayakar's seahorse
Jayakar's seahorse
Jayakar's seahorse
Jayakar's seahorse
Jayakar's seahorse
Jayakar's seahorse
Jayakar's seahorse
Jayakar's seahorse
Fishes · Bony fishes · Seahorses

Jayakar's Seahorse

Hippocampus jayakari Boulenger, 1900
14 cm2-20 mCITES IILeast Concern
1183

Jayakar's seahorse (Hippocampus jayakari) is a species of coastal fish belonging to the family Syngnathidae. It is primarily found in the 🌊 Western Indian Ocean, ranging from the 🌊 Red Sea and Arabian Sea to the central coast of 🇵🇰 Pakistan. This species typically inhabits various habitats such as seagrass beds (such as Halophila spp.), algae, soft-bottom substrates, sponges, and rocky areas, with a maximum length of 14 centimetres (5.5 inches). While it can thrive at depths of up to 20 metres (66 feet), it is most commonly observed at depths of 2 to 3 metres (6.6 to 9.8 feet).

Feeding habits of Jayakar's seahorse consist of consuming small crustaceans, similar to other seahorse species. It exhibits ovoviviparity, with male seahorses carrying eggs in a specialized brood pouch until giving birth to live offspring. Sexual maturity is attained by individuals when they reach a length of 11 centimetres (4.3 inches). The specific epithet and common name of this seahorse pays tribute to the notable 🇮🇳 Indian physician, linguist, and ichthyologist Dr. Surgeon-Major Atmaram Sadashiv "Muscati" Jayakar (1844-1911).

Why it's threatened

Residential & commercial development
Housing & urban areas · Commercial & industrial areas · Tourism & recreation areas
Biological resource use
Motivation Unknown/Unrecorded
Pollution
Sewage · Run-off · Nutrient loads · Soil erosion, sedimentation
Climate change & severe weather
Habitat shifting & alteration

Hippocampus jayakari may be threatened as a result of being caught as bycatch (Foster and Vincent 2004) and seagrass habitat degradation and destruction (Short et al. 2011). The species of Halophila present in the region have been assessed as Least Concern (Short et al. 2010a, 2010b), and the species is able to utilise other habitat types.

Threat classification from the IUCN Red List.

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Last Update: June 28, 2026