Neogobius pallasi (Berg, 1916)
Caspian sand goby
Neogobius pallasi
photo by Abbasi, K.

Family:  Gobiidae (Gobies), subfamily: Gobiinae
Max. size:  20 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  Europe and Asia: Caspian basin; common in Volga drainage, upriver to Moscow. Introduced in Aral basin.
Diagnosis:  This species is distinguished from its congeners entering freshwater in the Caspian Sea basin by the following characters: first branched ray of second dorsal about as long as penultimate ray; nape completely scaled; pelvic-disc fraenum with small rounded lobes and the length is less than 1/6 of width at base; pelvic disc reaching 90-100% of distance between its origin and anus; scales in midlateral series 55-63 + 2-3; in juveniles at least, posterior part of first dorsal with black spot (Ref. 59043).
Biology:  Occurs in lagoons and lakes, large- to medium- size rivers, on sand or mud bottom; usually on open sand or sand-shell bottom. Lives up to 3 years. Spawns for the first time at 1 year, rarely at 2. Spawns in April-September. Individual females may repeat spawning during a season. Adhesive eggs are deposited on stones, shells and aquatic plants and are guarded by males until hatching. Feeds on a wide variety of invertebrates (mainly crustaceans and insect larvae) and small fish (Ref.59043). Is the most important commercial species of goby in the Caspian Sea (Ref. 2058).
IUCN Red List Status: Least Concern (LC); Date assessed: 01 January 2008 Ref. (123251)
Threat to humans:  harmless
Country info:   

Entered by: Sa-a, Pascualita - 06.05.98
Modified by: Capuli, Estelita Emily - 29.06.10

Source and more info: For personal, classroom, and other internal use only. Not for publication.

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