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Shanny

(Lipophrys pholis)

The Shanny is a common sight in rockpools all around the UK. They are feisty little fish and have been known to bite when caught, so watch your fingers!

Shanny ©Linda Pitkin/2020VISION
Shanny

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Overview

The Shanny is also known by the name Common Blenny. It is a small, elongated fish with a large head and big eyes. It is common in rockpools and shallow waters, but is shy and normally hides under stones or seaweed. They are quite hard to spot when they are lying still as their mottled colouration provides excellent camouflage.

Key Facts

  • Variable in colour, normally brown or beige with darker blotches. Males are almost black during the breeding season (April-August). They can be distinguished from the larger Tompot Blenny as they have no tentacles on their heads.
  • It is the male Shanny that guards the eggs. Once the female has laid the precious eggs, the father will guard them for over a month against hungry predators. During breeding and nesting, the male Shanny’s colouration darkens to almost black except for his lips which change to bright white.
  • They will eat whatever they can find, from seaweed to barnacles and shrimps. The Shanny is sometimes known as the Sea Frog! They are able to survive out of water at low tide and, if disturbed, will leap back into the water – much like a frog does.
  • Length: up to 17cm

Status

Common

Seasonality

All year round

Video

Shanny video

Shanny in rockpool

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