Lepadogaster purpurea

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Lepadogaster purpurea
Lepadogaster purpurea (Cornwall, England).jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Gobiesociformes
Family: Gobiesocidae
Genus: Lepadogaster
Species:
L. purpurea
Binomial name
Lepadogaster purpurea
(Bonnaterre, 1788)

Lepadogaster purpurea, the Cornish sucker, is a species of clingfish from the family Gobiesocidae. It is found in the eastern North Atlantic Ocean and in the western Mediterranean Sea.

Contents

Description

Lepadogaster purpurea has a rather tadpole-like shape with a small body and a large flattened head with large mouth shaped like the bill of a duck-and a tentacle is positioned to the rear of each nostril. The pelvic fins are fused and, together with their surrounding tissue. they form a suction disc or sucker. They are variable in colour, having the ability to alter their colouration to blending with the substrate they are clinging to, but normally they show a pale background with a patterning of bars and spots which can vary between dark purple to reddish brown and green. On the nape there are two bright blue ocelli, or eyespots, which are thought to be defensive and to confuse predators. [2] They grow to 7.5 centimetres (3.0 in) in standard length. [3]

Distribution

Lepadogaster purpurea occurs in the eastern North Atlantic Ocean from the Shetland Islands south to the Canary Islands and Dakar in Senegal. It is also found in the western Mediterranean Sea as far east as Cap Roux (near Cannes, France). [1]

Habitat and biology

Lepadogaster purpurea just below and just above the low water market as deep as 9 metres (30 ft) where it hides under boulders on rocky shorelines. It spends long periods in shelters, normally with a favoured shelter in this habitat. When it detects potential prey near its shelter, L. purpurea waits for it to move closer and then it swims out to take the prey returning to the shelter straight away to eat the prey. [1]

Taxonomy

Lepadogaster purpurea is one of three species of Lepadogaster . L. purpurea was once synonymous with Lepadogaster zebrina, but has since been classified as its own species as L. zebrina has been discovered to be more synonymous with L. lepadogaster. [4] This species of Lepadogaster is found normally off the western coast of Portugal. L. purpurea differs from other Lepadogaster species in that it behaves in a much more passive manner. For example, studies have shown that L. purpurea was less active in its habitat and spent more time inside its shelter rather than interacting with other fish and swimming around. [5] L. purpurea also has different swim patterns in comparison to the other Lepadogaster species. L. purpurea generally swims at a much slower pace and doesn't make quick movements like the shore clingfish. [6]

Related Research Articles

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<span class="mw-page-title-main">Shore clingfish</span> Species of fish

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<i>Squalius carolitertii</i> Species of fish

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<span class="mw-page-title-main">Portuguese blenny</span> Species of fish

The Portuguese blenny, also known as the red blenny, is a species of combtooth blenny found in the eastern Atlantic ocean off western Europe and Macaronesia.

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<i>Sicyases sanguineus</i> Species of fish

Sicyases sanguineus is a species of amphibious marine clingfish in the family Gobiesocidae. It lives in the Southeast Pacific along the entire coast of Chile and southern Peru.

<span class="mw-page-title-main">Black-faced blenny</span> Species of fish

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Derilissus is a genus of clingfishes belonging to the family Gobiesocinae found in the western Atlantic Ocean. This family of fish is identified by their appearance as small fish with sucking discs which allow them to attach themselves to various surfaces. Derilissus differs from other genera due to its attached gill membranes.

<span class="mw-page-title-main">Blunt-snouted clingfish</span> Species of fish

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<i>Gouania</i> (fish) Genus of fish

Gouania is a genus of clingfishes endemic to the Mediterranean Sea that contains at least 5 cryptobenthic species. The members of this genus are the only vertebrates to inhabit European intertidal gravel beaches and they have developed many adaptations to survive in this extremely harsh environment. They are a type of Clingfish meaning they form part of the Gobiesocidae family. All species of clingfish have a thoracic adhesive disc that allows them to hold on to both smooth and rough surfaces alike. This adaptation enables Gouania to survive the harsh conditions of gravel beaches, they are amongst the only fish taxa adapted to this habitat.

<i>Lepadogaster</i> Genus of fishes

Lepadogaster is a genus of clingfishes native to the eastern Atlantic Ocean extending into the Mediterranean Sea. Lepadogaster belongs to class Actinopterygii. This means that they share many of the same characteristics as eels, ray-finned fish, and sea horses to name a few. The main characteristic of all of them though is having fin rays. These fin rays are made of webbed skin and are attached to portions of the body that connect fins to the bones. Lepadogaster species have a distinct difference in the formation of their dorsal and anal fins. While most other ray-finned fish spines, branched fin-rays, and middle radials, Lepadogaster species do not have these. Instead, they have cartilage in place of the mentioned features. These clingfish are mainly found near the rocky coasts and inside intertidal zones. Lepadogaster is known mostly as a clingfish, meaning that it spends most of its time attached to the surface of rocks.

<i>Lepadogaster candolii</i> Species of fish

Lepadogaster candolii, common name Connemarra clingfish, is a species of fish in the genus Lepadogaster. It occurs in the Eastern Atlantic from the British Isles south to Madeira and the Canary Islands and into the western Mediterranean and the Black Sea. The specific name candolii honours the Swiss botanist Augustin Pyramus de Candolle (1778-1841) and has various spellings: candolii, candolei, candollei, and decandollii, but only the first one is correct. Some workers have found that L. candolii is not closely related to the other two species in the genus Lepadogaster and have proposed the placing of this species in the revived monotypic genus Mirbelia Canestrini, 1864, at least until more definitive taxonomic studies can be undertaken.

<i>Diplecogaster bimaculata</i> Species of fish

Diplecogaster bimaculata, the two-spotted clingfish, is a species of fish in the family Gobiesocidae found in Black Sea, Mediterranean Sea and Atlantic Ocean where it is found on rocks and among seagrass or shell beds.

Diplecogaster tonstricula, commonly known as the Eastern Atlantic cleaner clingfish, is a species of clingfish from the family Gobiesocidae, which is found in the tropical eastern North Atlantic Ocean. It has been observed cleaning larger species of fish.

<i>Lepadichthys frenatus</i> Species of fish

Lepadichthys frenatus, the bridled clingfish, is a species of clingfish from the family Gobiesocidae. It is found on shallow reefs in the western Pacific Ocean.

<i>Opeatogenys gracilis</i> Species of fish

Opeatogenys gracilis is a species of clingfish from the family Gobiesocidae which is found in the Mediterranean Sea and in the eastern Atlantic Ocean. Suggested common names for this species are the pygmy clingfish and the seagrass clingfish.

<i>Sicyases brevirostris</i> Species of fish

Sicyases brevirostris is a species of clingfish from the family Gobiesocidae. It is endemic to the rocky intertidal zones of the Juan Fernández Islands, Chile. It was described in 1848 as Gobiesox brevirostris by Alphone Guichenot. Fishbase treats Sicyases hildebrandi as synonymous with S. brevirostris although some authorities still treat S. hildebrandi as a valid species.

<i>Apletodon pellegrini</i> Species of fish

Apletodon pellegrini, the chubby clingfish, is a species of clingfish of the family Gobiesocidae. The species is found in the Eastern Atlantic, from Madeira, Cape Verde, Canary Islands, Annobon Islands, mainland shore from Cape Blanco south to Port Alfred, South Africa.

References

  1. 1 2 3 Smith-Vaniz, W.F. (2015). "Lepadogaster purpurea". IUCN Red List of Threatened Species . 2015: e.T198776A21907837. doi: 10.2305/IUCN.UK.2015-4.RLTS.T198776A21907837.en . Retrieved 20 November 2021.
  2. "Weird fish of the week: Cornish sucker". Practical Fish Keeping. Retrieved 15 June 2019.
  3. Froese, Rainer; Pauly, Daniel (eds.) (2019). "Lepdogaster purprea" in FishBase . April 2019 version.
  4. Henriques, M.; Lourenço, R.; Almada, F.; et al. (2002). "A revision of the status of Lepadogaster lepadogaster (Teleostei: Gobiesocidae): sympatric subspecies or a long misunderstood blend of species?". Biological Journal of the Linnean Society . 76 (3): 327–338. doi: 10.1046/j.1095-8312.2002.00067.x . hdl: 10400.12/1305 .
  5. Gonçalves, D. M.; Gonçalves, E. J.; Almada, V. C. & Almeida, S. P. (1998). "Comparative behavior of two species of Lepadogaster (Pisces: Gobiesocidae) living at different depths". Journal of Fish Biology. 53 (2): 447–450. doi:10.1111/j.1095-8649.1998.tb00992.x. hdl: 10400.12/1341 .
  6. Faria, A. M. & Gonçalves, E. J. (2010). "Ontogeny of swimming behaviour of two temperate clingfishes, Lepadogaster lepadogaster and L. purpurea (Gobiesocidae)". Marine Ecology Progress Series. 414: 237–248. doi: 10.3354/meps08692 . hdl: 10400.1/12089 .