Grass goby
| Grass goby | |
|---|---|
| |
| Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Gobiiformes |
| Family: | Gobiidae |
| Genus: | Zosterisessor Whitley, 1935 |
| Species: | Z. ophiocephalus
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| Binomial name | |
| Zosterisessor ophiocephalus (Pallas, 1814)
| |
| Synonyms | |
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Genus
Species | |
The grass goby (Zosterisessor ophiocephalus) is a species of goby native to the , the Sea of Azov and the Black Sea. It is the only known member of its genus.[2]
Characteristics
Grass gobies can grow up to 25 cm (9.8 in) long. The head crown, nape, throat, belly, and bases of the pectoral fins are covered by cycloid scales[3] and the gill covers are naked. The abdominal sucker has no blades and does not reach the anus. The mandibulae are protrusive, and the skin soft, with mucus. Their coloration is green-brown, patterned with merging brown spots. The cheeks have round light spots. The dorsal, caudal, and pectoral fins have longitudinal brown stripes on a light background; the anal and abdominal suckers are dark.
Range
Widespread in coastal waters of all seas of the , they are especially numerous in the northern Adriatic Sea, Venetian Lagoon, and Sète Lagoon (France) and in the Black Sea near all coasts, especially in lagoons and estuaries of the north-west, Varna and Burgas Bays, Sea of Azov, and Sivash.
Feeding
Until age two, grass gobies feed only on crustaceans, after which they start to eat fish. In Tuzly Lagoons, they first feed on gammarids Gammarus lacustris (94%), and Idotea balthica (6%)[4] followed by fish like the big-scale sand smelt (30%) and gobies (36%). Shrimp Palaemon adspersus also play an important role.[citation needed]
Parasites
On the Crimean coasts, the grass goby hosts about 27 parasite species.[5] The acanthocephalans Acanthocephaloides propinquus are most numerous. In the northwestern Black Sea, this fish has 13 parasite species.[6][7] Except for A. propinquus, the acanthocephalan Telosentis exiguus, is very numerous. Both are Mediterranean immigrants as is the grass goby itself. The Ponto-Caspian cestodes Proteocephalus gobiorum and monogeneans Gyrodactylus proterorhini are also numerous. In the Budaki Lagoon, the grass goby is a host of larvae of epizootic nematode Streptocara crassicauda.
Importance
The grass goby is eaten by some commercial fishes, such as the toad goby.[8] In the Sea of Azov, it is used for food by the harbour porpoise.[9]
The grass goby is a commercial fish in the Black Sea and the Sea of Azov, the Molochnyi Estuary, Tuzly Lagoons, and in the Sivash.
In Venetian cuisine, it is known as pesce gò or ghiozzo, and is the basis for the dish risotto di gò (rixoto de gò in Venetian) or risotto di Burano.[10]
References
- ^ Herler, J.; Kovacic, M. & Williams, J.T. (2014). "Zosterisessor ophiocephalus". IUCN Red List of Threatened Species. 2014: e.T23259A49092194. doi:10.2305/IUCN.UK.2014-3.RLTS.T23259A49092194.en.
- ^ Froese, Rainer; Pauly, Daniel (eds.). "Zosterisessor ophiocephalus". FishBase. June 2013 version.
- ^ Smirnov A.I. (1986) Perch-likes (gobiids), scorpionfishes, flatfishes, clingfishes, anglerfishes [in:] Fauna of Ukraine, Vol. 8, No 5, Kyiv: Naukova Dumka, 320 pp. (in Russian)
- ^ Dolgiy V.N. (1962) Materialy po biologii bychka-travianika Zosterisessor ophiocephalus - v usloviyah limanov Tuzlovskoy gruppy. Uchenyje zapiski Kishinevskogo universiteta, 62(1): 129-135. (in Russian)
- ^ Naidenova N.N. (1974) parazitofauna ryb semeystva bychkovyh Chernogo i Azovskogo morey, Kiev, Naukova Dumka, 182 pp. (in Russian)
- ^ Y. Kvach (2005). "A comparative analysis of helminth faunas and infection of ten species of gobiid fishes (Actinopterygii: Gobiidae) from the North-Western Black Sea" (PDF). Acta Ichthyologica et Piscatoria. 35 (2): 103–110. doi:10.3750/AIP2005.35.2.06. Archived from the original (PDF) on 2011-09-03. Retrieved 2011-01-23.
- ^ Kvach Y. (2005) Helminth fauna of the grass goby Zosterisessor ophiocephalus in the water bodies of the North-Western Black Sea region. Ekologicheskaya Bezopasnost pribrezhnoy i shelfovoj zon i kompleksnoye ispolzovaniye resursov shelfa. (Eds.) V.A. Ivanov et al., No 12, pp. 603–609. (in Russian)
- ^ Grinbart S.B. (1960) K izucheniye pitaniya ryb Grigoryevskogo limana. Yezhegodnik Odesskogo univeriteta (Biologichekiy fakultet): 2: 167-172. (in Russian)
- ^ Ilyin B.S. (1949) Kratkiy obzor chernomorskih bychkov (Pisces, Gobiidae). Buleten MOIP (Otd. Biol.), 54(3): 16-30. (in Russian)
- ^ Beatrice Piselli, "Risotto di gò: a casa come a Venezia", Primo Chef, 24 Febbraio 2023
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