.

Life Friuli Fens - Conservation and restoration of calcareous fens in Friuli

Cottus gobio - Matteo Skodler

.

.

INVERTEBRATES

space

space
FISHES

space

Bulkhead (Cottus gobio)space
Italian barbel (Barbus plebejus)space
Marble trout (Salmo marmoratus)space
Po brook lamprey (Lethenteron zanandreai)space
Spined loach (Cobitis tenia)space
Vairone (Leuciscus souffia)space
.
space
AMPHIBIANS

space

space
REPTILES

space

space
BIRDS

space

space
MAMMALS

space

space
PHOTO GALLERY
space

LIFE FRIULI FENS

Cottus gobio

 

Bullhead
92/43/EEC Directive  ann. II

 

Species spread throughout Europe, small in size (up to 15-16 cm) with a large and flattened head, with bare skin or covered with small spines, with fins well developed and dorsal ones very tight. The background color varies from dark gray to greenish brown with irregular darker spots on the back and sides; the belly is white, the dorsal, pectoral and tail fins are clear with dark spots arranged in regular lines. The species is benthic and is very demanding in terms of environmental quality. It requires fast, cold and well-oxygenated waters with substrates consisting of boulders, pebbles and gravel. It lays its eggs under rocks and gravels and the male guards the nest until hatching.
The feeding is varied, it is composed by insect larvae and crustaceans during the summer, integrated with annelids during the winter.
The species is in decline and the causes are to be found in the alteration of river channels, in pollution of waterways, in excessive water abstraction and massive re-population of salmonids (strong impact in terms of predation).

 

Iconografia dei pesci delle acque interne d'Italia<br>S. Zerunian, T. De Ruosi - 2002<br>Ministero dell'ambiente e della tutela del territorio<br>Istituto Nazionale per la Fauna Selvatica

Iconografia dei pesci delleacque interne d'Italia
S. Zerunian, T. De Ruosi - 2002
Ministero dell'ambiente e della tutela del territorio
Istituto Nazionale per la Fauna Selvatica "A. Ghigi"

space

.

.