dcsimg

Diagnostic Description

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Description: (based on 23 specimens): Adult height: 13.0-20.0cm. Rings: 11+34 (33-36). Snout length: 2.1 (1.9-2.3) in head length. Dorsal fin rays: 18 (16-20) covering 2+1 rings. Pectoral fin rays: 17 (16-18). Coronet: high to very high, with an expanded rounded top (larger and more fluted in females, smaller and more rounded in males). Spines: low, rounded bumps only. Other distinctive characters: very thick rings; narrow body; usually double rounded cheek spines; long snout (about 1/2 head length); prominent rounded eye spine. Color pattern: usually pale with net-like pattern of reticulating brown lines over body and tail; may be yellow, orange, black, purple, white, cream or pink; brown ring around spines; striped snout; dark vertical line edging either side of dorsal surface of trunk.
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Recorder
Rainer Froese
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Life Cycle

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Gestation period 2-3 weeks, depending on water temperature. This species manifested evidence of genetically monogamous character in seahorses (Ref. 59213). Monogamous mating is observed as both obligate and genetic (Ref. 52884). Site fidelity is observed during breeding season (Ref. 59213). Male carries the eggs in a brood pouch (Ref. 205).
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Morphology

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Dorsal spines (total): 0; Dorsal soft rays (total): 1620
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Trophic Strategy

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Found in inshore waters (Ref. 75154). Also found in rocks and gravel and among sponges (Ref. 52034).
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Susan M. Luna
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Biology

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Found on edge of rocky areas, muddy bottom and areas of high sediment load; jetty piles and moorings; often associated with sponges or sea squirts or attached to man-made objects; moves to deeper waters in winter. Ovoviviparous (Ref. 205). The male carries the eggs in a brood pouch which is found under the tail (Ref. 205). This species manifested evidence of genetically monogamous character in seahorses (Ref. 59213). Site fidelity is observed during breeding season (Ref. 59213). Length type refers to height (= TL - head length) (Ref. 30915).
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Tiger snout seahorse

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The tiger snout seahorse (Hippocampus subelongatus) or West Australian seahorse, is a species of fish in the family Syngnathidae. It is endemic to south-western Australia, where it occurs from the Abrolhos Islands to Rockingham. Its natural habitats are the edges of rocky areas, muddy bottoms and areas with murky water caused by high sediment load, around jetty pilings and moorings; it is often associated with sponges or sea squirts and frequently attaches itself to man-made objects. In the winter they move to deeper water.[3]

Mating:

Hippocampus subelongatus participate in strictly monogamous relationships. There are more mated females than unmated females, however, the amount of mated and unmated males is roughly the same. This is a direct result of the substantial sexual selection on females -- the males have a preference when mating, they prefer larger females.[4]

Wikimedia Commons has media related to Hippocampus subelongatus.

References

  1. ^ Pollom, R. (2017). "Hippocampus subelongatus". IUCN Red List of Threatened Species. 2017: e.T40773A54906710. doi:10.2305/IUCN.UK.2017-3.RLTS.T40773A54906710.en. Retrieved 16 November 2021.
  2. ^ "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. ^ Froese, Rainer; Pauly, Daniel (eds.) (2018). "Hippocampus elongatus" in FishBase. February 2018 version.
  4. ^ Kvarnemo, Charlotta; Moore, Glenn I; Jones, Adam G (2007-02-22). "Sexually selected females in the monogamous Western Australian seahorse". Proceedings of the Royal Society B: Biological Sciences. 274 (1609): 521–525. doi:10.1098/rspb.2006.3753. ISSN 0962-8452. PMC 1766380. PMID 17476772.

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Tiger snout seahorse: Brief Summary

provided by wikipedia EN

The tiger snout seahorse (Hippocampus subelongatus) or West Australian seahorse, is a species of fish in the family Syngnathidae. It is endemic to south-western Australia, where it occurs from the Abrolhos Islands to Rockingham. Its natural habitats are the edges of rocky areas, muddy bottoms and areas with murky water caused by high sediment load, around jetty pilings and moorings; it is often associated with sponges or sea squirts and frequently attaches itself to man-made objects. In the winter they move to deeper water.

Mating:

Hippocampus subelongatus participate in strictly monogamous relationships. There are more mated females than unmated females, however, the amount of mated and unmated males is roughly the same. This is a direct result of the substantial sexual selection on females -- the males have a preference when mating, they prefer larger females.

Wikimedia Commons has media related to Hippocampus subelongatus.
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