Monkey goby

Monkey goby
Monkey goby
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Suborder: Gobioidei
Family: Gobiidae
Subfamily: Benthophilinae
Genus: Neogobius
Species: N. fluviatilis
Binomial name
Neogobius fluviatilis
(Pallas, 1814)
The range of the Monkey goby
  • Gobius fluviatilis Pallas, 1814
  • Gobius fluviatilis nigra Kessler, 1859
  • Gobius lacteus Nordmann, 1840
  • Gobius sordidus Bennett, 1835
  • Gobius stevenii Nordmann, 1840
  • Neogobius fluviatilis fluviatilis (Pallas, 1814)
  • Apollonia fluviatilis (Pallas, 1814)

The monkey goby, Neogobius fluviatilis, is a species of fish in the Gobiidae family, and a Ponto-Caspian relict species.



The monkey goby is covered with cycloid scales on the head crown, nape, back, one third of the gill covers, bases of the pectoral fins, and the posterior half of the throat and belly. Its second dorsal fin is small in size compared to the posterior end of the body. The width of its head is equal to or a bit greater than the height of the head, and terminates in an acuminated, or leaf-shaped, snout. The jaws of Neogobius fluviatilis contain small, conical teeth and the mandibles are set forward in the skull. The abdomen of the monkey goby is lined with suckers that stretch from the collar to the anus. Its coloration is a brownish gray or a yellowish gray, usually with a very pale brown pattern of dark merged spots. Rows of dark spots are also found on the dorsal and caudal fins. The average adult monkey goby measures 7–10 centimeters, but has been known to grow to lengths of 18–20 centimeters. This species weighs around 50 grams.


The natural habitat of the monkey goby is the fresh and brackish waters of basins in the Black Sea and the Sea of Marmara.[2] In the basin of the Sea of Marmara, it is a common sight in Manyas, Sapanca, and the Kazoli River in Bosporus Strait. In the Black Sea and the surrounding areas, the monkey goby is common in all desalinated water including the Danube river and its tributaries, the lagoons and estuaries of the north-western part of the Black Sea, the Sea of Azov, and the rivers of Caucasus. Recently, the monkey goby has been registered as an invasive species in some countries of Europe. In 1970, the species was first declared as a non-indigenous in Lake Balaton in Hungary.[3] The monkey goby was discovered in the Middle Danube in Hungary in 1984.[4] In 2001 it was found to have spread to the Slovak-Hungarian sector of the Danube River.[5] In the basin of the Baltic Sea it was first registered as an invasive species in 1997.[6] The species has also become a common sight in the Włocławek Reservoir and Zegrze Reservoir.[7] The monkey goby has been found in the German part of the river Rhine since March 2009. It has also been found in the Waal River, near Nijmegen, the Netherlands.[8]


The monkey goby belongs to the group known as malacophages, but molluscs have lower importance in its diet than in that of the round goby.[9] However, in the Sea of Azov molluscs (mainly ‘’Abra segmentum’’) make up 85% of its diet.[10] In the Gulf of Tendra its diet is dominated by polychaetes, the larvae of Chironomidae, molluscs, Cerastoderma, juvenile gobies, adult marbled gobies, and crustaceans such as amphipods and shrimp.[11] In the Danube lakes Yalpug and Kugurluy, the diet of the monkey goby consists of amphipods, molluscs, and Oligochaeta.[12]

In the Khadzhibey Estuary a dozen species of prey make up the diet of monkey goby.[13] Polychaetes, larvae of insects, and shrimp are present in the diet year round. Seasonal dietary additions include crabs such as Rhithropanopeus harrisii, sea weed such as Zostera marina, and amphipods such as Marinogammarus olivii. Certain planktonic crustaceans are also present in the diet of adult gobies.


Monkey goby infected with the larvae of nematodes Eustrongylides excisus, Dniester Estuary, Ukraine

In the northwestern Black Sea, twelve parasite species are known to infect the monkey goby.[14] The core of the parasitic fauna are a trio metacercariae composed of Сryptocotyle concavum, Сryptocotyle lingua, and Рygidiopsis genata. Other common parasites include the nematode Dichelyne minutus and the cestoda Ligula pavlovskii. The trematode parasites C. lingua and P. genata can also infest humans.[15][16] In the 1950s, along the coast of the Gulf of Taganrog in the Sea of Azov, the monkey goby was registered as a host of epizootic of nematodes Tetrameres fissispina and Streptocara crassicauda, which are fatal to ducklings.[17]


In Ukraine the monkey goby is a crucial commercial fish, especially in the Sea of Azov and Dnieper-Bug Estuary. It plays an important role in the food chain by serving as prey for other predatory fish living in these areas.

See also


  1. ^ World Conservation Monitoring Centre (1996). "Neogobius fluviatilis". IUCN Red List of Threatened Species. Version 2.3. International Union for Conservation of Nature. Retrieved August 4, 2007. 
  2. ^ Smirnov A.I. (1986) Perch-likes (gobiids), scorpionfishes, flatfishes, clingfishes, anglerfishes [in:] Fauna of Ukraine, Vol. 8, No 5, Kiev: Naukova Dumka, 320 pp. (in Russian)
  3. ^ Bíro P. (1971) Neogobius fluviutilis in Lake Balaton - a Ponto-Caspian goby new to the fauna of central Europe. J. Fish Biol., 4: 249-255.[1]
  4. ^ Pintér K. (1989) Fishes of Hungary. Akadémiai Kiadó, Budapest, 202 pp.
  5. ^ Stráňai I., Andeji J. (2001) Monkey goby – (so far) the last invasing species from the gobiids family. Polovnictvo a rybárstvo (Bratislava), 53: 44-45.
  6. ^ Danilkiewicz Z. (1998) Babka szczupła, Neogobius fluviatilis (Pallas, 1811), Perciformes, Gobiidae – nowy, pontyjski element w ichtiofaunie zlewiska Morza Bałtyckiego. Fragm. Faun., 41(21): 269–277.
  7. ^ Kostrzewa J., Grabowski M. (2002) Babka szczupła, Neogobius fluviatilis (Pallas, 1814), w Wiśle - fenomen inwazji pontokaspijskich Gobiidae. Przegl. Zool., 46(3-4): 235-242.
  8. ^ van Kessel N., Dorenbosch M., Spikmans F. (2009) First record of Pontian monkey goby, Neogobius fluviatilis (Pallas, 1814), in the Dutch Rhine. Aquatic Invasions, 4(2): 421-424.[2]
  9. ^ Andriyashev A.R., Arnoldi L.V. (1945) O biologiipitaniya nekotoryh donnyh ryb Chernogo morya. Zhurn. obshch. biol., 6(1): 53-61. (in Russian)
  10. ^ Lus V.Ya. (1963) Pitaniye bychkov (sem. Gobiidae) Azovskogo morya. Trudy Instituta okeanologii, 62: 96-127. (in Russian)
  11. ^ Borisenko A.M. (1946) Kolichestvennyj uchet donnoy fauny Tendrovskogo zaliva: Abstract of PhD Thesis, Karadag, 18 p. (in Russian)
  12. ^ Grinbart S.B. (1964) Zhivlennia bentosoyidnyh ryb i kormovi resursy zoobentosu lymaniv (Yalpuh, Kugurluy) [In:] Tezy dop. I resp. konf. VGBT, 9, Kiev, Naukova Dumka, pp. 68-69. (in Ukrainian)
  13. ^ Kudrenko S., Kvach Y. (2005) Diet composition of two gobiid species in the Khadzhibey Estuary (North-Western Black Sea, Ukraine). Acta Universitatis Nicolai Copernici, Limnological Papers, 24: 61-68.
  14. ^ Kvach Y. (2005) A comparative analysis of helminth faunas and infection of ten species of gobiid fishes (Actinopterigii: Gobiidae) from the North-Western Black Sea. Acta Ichthyologica et Piscatoria, 35(2): 103–110.[3]
  15. ^ Youssef M.M., Mansour N.S., Awadalla H.N., Hammouda N.A., Khalifa R., Boulos L.M. (1987) Heterophyid parasite of man from Idku, Maryat and Manzala Lakes areas in Egypt. J. Egypt. Soc. Parasitol., 17: 474–479.
  16. ^ Zimmerman M.R., Smith G.S. (1975) A probable case of occidental inhumation of 1600 years ago. Bull. N.Y. Acad. Med., 51(7): 828–837.
  17. ^ Kovalenko I.I. (1960) Izucenie cikla razvitiâ nekotoryh gel’mintov domasnih utok v hozâjstvah na Azovskom poberez’e. Doklady AN SSSR, 133(5): 1259–1261.(In Russian)

Further reading

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