The two-spotted goby (Pomatoschistus flavescens) is a species of goby native to marine and brackish waters of the eastern Atlantic Ocean where it can be found from the Faeroes and Norway to the northwestern coast of Spain. It has also been recorded from Estonia though records from the Mediterranean Sea are uncertain. They are common on all coasts of the United Kingdom. This species can reach a length of 6 centimetres (2.4 in) TL.[2]
This fish prefers to inhabit areas with plenty of weed growth, being found on overgrown structures and in beds of Laminaria or Zostera. They are found in intertidal pools and shallow water to a depth of 20 m.
Descriptionedit
Pomatoschistus flavescens are small, slender gobies, reaching up to 6 cm in length. They are distinct from other gobies in that their eyes are on the side of the head (lateral) rather than on top (dorsal).[3] There is a black spot at the base of the tail fin, and in the males, there is a second, smaller black spot beneath the pectoral fins. They are reddish to greenish brown in colour, paler on the undersides with dark reticulations dorsally. There are four light 'saddle' marks dorsally from the head to the end of the second dorsal fin. Along the midline of the sides are a series of bluish markings. During the breeding season these markings become extremely bright in the males.
Behaviouredit
Unlike most gobies, this species does not live on the seabed but instead lives in shoals among seagrasses and seaweeds. It feeds on zooplankton such as crustaceanlarvae. Breeding takes place in the summer. The male becomes territorial and defend a nest formed by a natural cavity such as an empty mussel shell or a folded kelp leaf. Males and females engage in several stages of mutual courtship displays, the last of which is a visit to the nest, in which the female lays a batch of eggs. The male then guards, cleans and fans the eggs of one to several females until they hatch. After a period of growth in the summer, the juvenile fish move into deeper water to spend the winter. The adults usually die after reproducing once.[4]
Referencesedit
^Herler, J.; Kovacic, M. & Williams, J.T. (2014). "Gobiusculus flavescens". The IUCN Red List of Threatened Species. 2014: e.T18159817A45115667. doi:10.2305/IUCN.UK.2014-3.RLTS.T18159817A45115667.en.
^Froese, Rainer; Pauly, Daniel (eds.) (2013). "Gobiusculus flavescens" in FishBase. June 2013 version.
^Species information:Gobiusculus flavescens 2013-12-19 at the Wayback Machine Marlin.
spotted, goby, spotted, goby, pomatoschistus, flavescens, species, goby, native, marine, brackish, waters, eastern, atlantic, ocean, where, found, from, faeroes, norway, northwestern, coast, spain, also, been, recorded, from, estonia, though, records, from, me. The two spotted goby Pomatoschistus flavescens is a species of goby native to marine and brackish waters of the eastern Atlantic Ocean where it can be found from the Faeroes and Norway to the northwestern coast of Spain It has also been recorded from Estonia though records from the Mediterranean Sea are uncertain They are common on all coasts of the United Kingdom This species can reach a length of 6 centimetres 2 4 in TL 2 Two spotted goby Conservation status Least Concern IUCN 3 1 1 Scientific classification Domain Eukaryota Kingdom Animalia Phylum Chordata Class Actinopterygii Order Gobiiformes Family Gobiidae Genus PomatoschistusDuncker 1928 Species P flavescens Binomial name Pomatoschistus flavescens J C Fabricius 1779 Synonyms Genus Chaparrudo de Buen 1931 Species Gobius flavescens Fabricius 1779 Coryphopterus flavescens Fabricius 1779 Gobius ruuthensparri Euphrasen 1786 Contents 1 Habitat 2 Description 3 Behaviour 4 References 5 External linksHabitat editThis fish prefers to inhabit areas with plenty of weed growth being found on overgrown structures and in beds of Laminaria or Zostera They are found in intertidal pools and shallow water to a depth of 20 m Description editPomatoschistus flavescens are small slender gobies reaching up to 6 cm in length They are distinct from other gobies in that their eyes are on the side of the head lateral rather than on top dorsal 3 There is a black spot at the base of the tail fin and in the males there is a second smaller black spot beneath the pectoral fins They are reddish to greenish brown in colour paler on the undersides with dark reticulations dorsally There are four light saddle marks dorsally from the head to the end of the second dorsal fin Along the midline of the sides are a series of bluish markings During the breeding season these markings become extremely bright in the males Behaviour editUnlike most gobies this species does not live on the seabed but instead lives in shoals among seagrasses and seaweeds It feeds on zooplankton such as crustacean larvae Breeding takes place in the summer The male becomes territorial and defend a nest formed by a natural cavity such as an empty mussel shell or a folded kelp leaf Males and females engage in several stages of mutual courtship displays the last of which is a visit to the nest in which the female lays a batch of eggs The male then guards cleans and fans the eggs of one to several females until they hatch After a period of growth in the summer the juvenile fish move into deeper water to spend the winter The adults usually die after reproducing once 4 References edit Herler J Kovacic M amp Williams J T 2014 Gobiusculus flavescens The IUCN Red List of Threatened Species 2014 e T18159817A45115667 doi 10 2305 IUCN UK 2014 3 RLTS T18159817A45115667 en Froese Rainer Pauly Daniel eds 2013 Gobiusculus flavescens in FishBase June 2013 version Species information Gobiusculus flavescens Archived 2013 12 19 at the Wayback Machine Marlin Two spotted goby Gobiusculus flavescens Fabricius NatureGate Retrieved 2013 12 18 External links editPhotos of Gobiusculus flavescens in iNaturalist Retrieved from https en wikipedia org w index php title Two spotted goby amp oldid 1183922098, wikipedia, wiki, book, books, library,
