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Greater pipefish
Conservation status
Least Concern  (IUCN 3.1)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Syngnathiformes
Family:	Syngnathidae
Genus:	Syngnathus
Species:	S. acus
Binomial name
Syngnathus acus Linnaeus, 1758
Synonyms
Dermatostethus punctipinnis Gill, 1862 Sygnathus acus (Linnaeus, 1758) Syngnathus alternans Günther, 1870 Syngnathus brachyrhynchus Kaup, 1856 Syngnathus delalandi Kaup, 1856 Syngnathus rubescens Risso, 1810 Typhle heptagonus Rafinesque, 1810

The greater pipefish (Syngnathus acus) is a pipefish of the family Syngnathidae. It is a seawater fish and the type species of the genus Syngnathus.

Etymology

The genus name Syngnathus derives from the Greek, syn, symphysis meaning grown together and gnathos meaning jaw. The Latin species' name acus means needle.

Description

The greater pipefish has a long segmented armoured body, angular in cross section and stretching up 45 cm long with its stiff appearance. It ranges a color brown to green in with broad alternating light and dark hue along it. Its customized by a long snout with mouth on end and a slight hump on the top of the body just behind the eyes.

The fish is generally 33 cm to 35 cm in length with a reported maximum length of 47 cm. They are almost square in each segment of the body, and known to feel rigid when handled. The greater pipefish has distinctive body rings which are a sandy brown with darker bars covering its body in between.

Anatomy

The anatomy of fish vary through the sex. The top third of the females belly is deep (when egg bound), twice the breadth of the lower two thirds below the vent. The male is the "tailing" with the twin folds below the vent. The folds of the skin make the middle third and during the "brooding" of the young they swell in size until the young are released from the pouch (at a size of 22 mm to 35 mm).

Biology

These fishes feed on live mysids and small prawns. They are ovoviviparous and reproduce usually three times each year. A few females deposit partial clutches under the tail into the male's brood pouch, that may contain up to 400 eggs.

Distribution

The greater pipefish is found all around the British Isles and is regularly found in the Mediterranean Sea.

Habitat

These fishes are common on southerly and westerly coasts in a variety of habitats, often amongst seaweeds and seagrass.

Syngnathus temminckii

The southern African species Syngnathus temminckii (Kaup, 1856) was until recently synonymised with S. acus. However, morphological data clearly show that it is distinct, and genetic data indicate that it is not even the sister taxon of S. acus, but of another southern African species, the river pipefish S. watermeyeri.

Gallery

• Social behavior of two juvenile specimens of Syngnathus acus.
• On the sand.
• Detail of the head.
• Detail of the body rings.
• Among seagrass.

Bibliography

• Bent J. Muus, Jørgen G. Nielsen: Die Meeresfische Europas. In Nordsee, Ostsee und Atlantik. Franckh-Kosmos Verlag, ISBN 3-440-07804-3
• Dawson, C.E., 1986. Syngnathidae. p. 628–639. In P.J.P. Whitehead, M.-L. Bauchot, J.-C. Hureau, J. Nielsen and E. Tortonese (eds.) Fishes of the North-eastern Atlantic and the Mediterranean. Volume 2. Unesco, Paris.
• Rudie H. Kuiter: Seepferdchen: Seenadeln, Fetzenfische und ihre Verwandten. Ulmer (Eugen), 2001, ISBN 3-80013-244-3

References

1. Smith-Vaniz, W.F. (2015). "Syngnathus acus". The IUCN Red List of Threatened Species. 2015: e.T198765A44933898. doi:10.2305/IUCN.UK.2015-4.RLTS.T198765A44933898.en.
2. ^ Syngnathus acus at the World Register of Marine Species
3. Froese, Rainer; Pauly, Daniel (eds.). "Syngnathus acus". FishBase. February 2018 version.
4. "Species Syngnathus acus Linnaeus". FishWisePro. 1758. Retrieved 19 April 2020.
5. ^ Fishbase
6. "Synghatus acus on jjphoto.dk". Archived from the original on 2007-09-26. Retrieved 2007-07-10.
7. Mwale, M., Kaiser, H., Barker, N.P., Wilson, A.B. & Teske, P.R. (2013) Identification of a uniquely southern African clade of coastal pipefishes Syngnathus spp. Journal of Fish Biology 82: 2045–2062

• Froese, Rainer; Pauly, Daniel (eds.). "Syngnathus acus". FishBase. October 2015 version.
• Greater Pipefish Syngnathus acus - Jim Hall

External links

• Syngnathus acus on Marine Life Encyclopedia
• Greater pipefish on Marine Life Information Network
• The greater pipefish in Aquaria
• Photo from Denmark Aquarium
• Photos of Greater pipefish on Sealife Collection

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Category WikiProject

• IUCN Red List least concern species
• Syngnathus
• Fish of the East Atlantic
• Fish of the Adriatic Sea
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