Hippocampus erectus, Lined seahorse: fisheries, aquarium

Hippocampus erectus

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Hippocampus erectus
Lined seahorse

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Hippocampus erectus Perry, 1810

Family:

Syngnathidae (Pipefishes and seahorses), subfamily: Hippocampinae

picture (Hiere_u0.jpg) by Flescher, D.

Image for Hippocampus erectus, Syngnathidae, Lined seahorse.

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Order:

Syngnathiformes (pipefishes and seahorses)

Class:

Actinopterygii (ray-finned fishes)

FishBase name:

Lined seahorse

Max. size:

19.0 cm OT (male/unsexed; Ref. 30915); max. reported age: 1 years

Environment:

reef-associated; non-migratory; marine; depth range 1 – 73 m

Climate:

subtropical; 10 – 27°C; 50°N - 5°n, 97°W - 40°W

Importance:

fisheries: minor commercial; aquarium: commercial; price category: not marketed/unknown

Resilience:

High, minimum population doubling time less than 15 months(K=0.34; tmax=1; Fec=1,552)

Vulnerability:

Low vulnerability (10.00). (Ref. 59153)

Distribution:
Gazetteer

Western Atlantic: Nova Scotia, Canada and northern Gulf of Mexico to Panama and Venezuela. A southern form that may prove to be a separate species is known from Rio de Janeiro, Brazil and questionably from Suriname. International trade is monitored through a licensing system (CITES II, since 5.15.04) and a minimum size of 10 cm applies.

Morphology:

Dorsal spines (total): 0 - 0; Dorsal soft rays (total): 16 - 20. Description: (based on 51 specimens): Adult height: 5.5-18.5cm. Rings: 11 + 36 (34-39). Snout length: 2.6 (2.2-3.2) in head length. Dorsal fin rays: 18-19 (16-20) covering 2+1 rings. Pectoral fin rays: 15-16 (14-18). Coronet: variable, low, triangular wedge, or ridge-like or raised with sharp edges, or with relatively sharp spines. Spines: variable from none, to well-developed with blunt or sharp tips. Other distinctive characters: usually first, third, fifth, seventh and eleventh trunk rings enlarged (in most other species it is the first, fourth, seventh and eleventh); snout usually less than half head length; deep-bodied; cheek spine single or double. Color pattern: base color variable � ash grey, orange, brown, yellow, red or black; brown individuals tend to be paler on ventral side; often with a characteristic pattern of white lines following contour of neck; tiny white dots on tail; may have darker or paler �saddles� across dorsal surface often in line with the more enlarged body rings.

Biology:

Generally in coastal waters; often around man-made structures (Ref. 26938). Usually attached to gorgonians or seagrasses but may occur in floating Sargassum or swimming freely in midwater (Ref. 9710). Those that live in Sargassum usually have bony protuberances and fleshy tabs that may serve as camouflage. Has been reared in captivity (Ref. 35420, 35422). Move into deeper waters during winter (Ref. 36630). Feeds by sucking in small organisms, using its long face as a pipette (Ref. 26938). Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205). Length type refers to Height (= from top of coronet to the tip of straightened tail).

Red List Status:

Vulnerable (VU) (A4cd)(Ref. 57073)

Dangerous:

harmless

Coordinator:

Main Ref:

Lourie, S.A., A.C.J. Vincent and H.J. Hall. 1999. (Ref. 30915)

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Note: No data available if label is black; please send relevant papers to: FishBase, MC P.O. Box 2631, 0718 Makati, Philippines, or attach files to 'Comments & Corrections' email below .

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Checked:
Froese, Rainer

Modified:
Orta�ez, Auda Kareen

Entered:
Froese, Rainer

Thessaloniki, Greece

	Ref.:		Glossary
		( e.g. 9948 )		( e.g. cephalopods )
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