Hai una foto? Identifica i pesci all'istante con l'app Fishby.
Apri l'appDescrizione
Gobius cobitis, commonly known as the Giant Goby or Ghiozzo testone, is the largest goby species found in the Mediterranean Sea and adjacent Atlantic waters. It is characterized by its robust body, large head, and distinctive coloration that allows it to blend seamlessly with its rocky intertidal and shallow subtidal habitats. This species plays a significant ecological role as a benthic predator and is well-adapted to harsh coastal environments.
Caratteristiche fisiche
- Forma del corpo
- elongated
- Colorazione
- Variable, typically mottled brown, grey, or olive-green with darker blotches and irregular bands, providing excellent camouflage against rocky substrates. The ventral side is usually lighter. During breeding, males may display darker, more intense coloration.
- Tipo di squame
- ctenoid
- Posizione della bocca
- terminal
- Caratteristiche distintive
- Large, broad head, wider than the body, giving it the 'big-headed' moniker., Robust, cylindrical body, tapering towards the caudal fin., Two distinct dorsal fins., Pelvic fins fused into a single, cup-shaped sucking disc., Large, prominent eyes set high on the head., Thick, fleshy lips.
- Pinna dorsale
- Two dorsal fins; the first dorsal fin has 6-7 spines, and the second dorsal fin has 1 spine and 13-15 soft rays. The first dorsal fin is typically lower than the second.
- Pinna caudale
- Rounded caudal fin.
- Pinna pettorale
- Large, fan-like pectoral fins with 18-20 rays.
- Pinne distintive
- Pelvic fins are completely fused to form a prominent, anteriorly concave, adhesive disc, characteristic of gobies, used for clinging to rocks in strong currents.
Consigli per l'identificazione
Size
Largest goby in its range, reaching up to 27 cm (10.6 inches) in total length, though typically observed between 15-20 cm.
Head Shape
Unmistakably large and broad head, significantly wider than the body, especially in mature individuals.
Habitat
- Tipo di acqua
- saltwater
- Profondità
- Typically found in very shallow waters, from the intertidal zone down to about 15 meters (50 feet), though most commonly observed in the first few meters.
- Ambiente
- Prefers rocky shores, tide pools, crevices, and under boulders in areas with strong wave action and good oxygenation. Often found in brackish lagoons and estuaries with rocky bottoms, demonstrating tolerance to salinity fluctuations. Requires abundant shelter.
- Areale geografico
- Eastern Atlantic Ocean, from the Bay of Biscay south to Morocco, including the Canary Islands. Widespread throughout the Mediterranean Sea and the Black Sea.
Informazioni sull'acquario
- Livello di cura: advanced
- Temperamento: territorial
- Dieta: carnivore
- Dimensione minima della vasca: 200 gallons (750 liters)
- Temperatura: 15-22°C (59-72°F)
- Livello di pH: 7.8-8.4
- Durezza: 1.020-1.025 SG
- Compatibilità: Best kept in a species-specific tank or with very robust, similarly sized, non-aggressive species that occupy different niches. Highly territorial towards conspecifics and other gobies.
- Requisiti speciali: Requires a large tank with extensive rockwork, caves, and crevices for shelter and territory establishment. Excellent filtration and stable water parameters are crucial. Live rock and a deep sand bed are beneficial. May attempt to jump, so a secure lid is essential.
Informazioni in natura
- Stato di conservazione: least concern
- Stagionalità: Present year-round in its habitat. Spawning typically occurs from late spring to early summer (April-July), during which males exhibit increased territoriality and parental care.
- Prezzo di mercato: Low
- Importanza commerciale: low
- Sapore: Mild, slightly sweet
- Consistenza: Firm, flaky white flesh
- Metodi di cottura: Fried, Grilled, Stewed in fish soups
- Valore nutrizionale: Good source of protein and omega-3 fatty acids, typical of lean white fish.
Fatti chiave
Largest Mediterranean Gobyrecord
Gobius cobitis holds the record as the largest goby species found in the Mediterranean Sea, often exceeding 20 cm in length.
Intertidal Specialistbehavior
This species is exceptionally well-adapted to the harsh conditions of the intertidal zone, tolerating significant fluctuations in temperature, salinity, and oxygen levels.
Parental Carebehavior
Males exhibit strong parental care, guarding the eggs laid in crevices or under rocks until they hatch. They fan the eggs to ensure oxygenation and protect them from predators.
Powerful Suctionamazing
The fused pelvic fins form a powerful suction cup, allowing the goby to cling securely to rocks even in areas with strong currents and wave action, preventing it from being swept away.
Dietary Generalistbehavior
While primarily carnivorous, feeding on small crustaceans, mollusks, and polychaetes, it is also known to consume algae and detritus, making it an opportunistic omnivore.
Informazioni di sicurezza
Sicuro- Livello di sicurezza: safe
- Velenoso: No
- Commestibilità: edible
- Note sul maneggio: No specific handling precautions are required beyond standard care for live fish. They can deliver a minor bite if provoked, but it is not harmful. Their strong pelvic suction disc allows them to cling firmly, making them difficult to dislodge from surfaces.
Specie simili
Black Goby
Gobius niger
Gobius cobitis is significantly larger and has a broader, more flattened head. Gobius niger typically has a more slender body, a less pronounced head, and often a black spot on the anterior part of the first dorsal fin (though this can be variable). The pelvic disc of G. cobitis is also generally larger and more robust.
Rock Goby
Gobius paganellus
Gobius cobitis is much larger. Gobius paganellus has a distinctive white or pale margin on the upper edge of the first dorsal fin, which is absent in G. cobitis. The head of G. paganellus is also less massive relative to its body size.
Classificazione scientifica
- Regno
- Animalia
- Phylum
- Chordata
- Classe
- Actinopterygii
- Ordine
- Gobiiformes
- Famiglia
- Gobiidae
- Genere
- Gobius
- Specie
- cobitis
Esplora Giant Goby
Identifica pesci ovunque
Gratis su iOS, Android e Web. Identificazione tramite foto, dettagli completi sulle specie e molto altro.