Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Gobiidae
(Gobies) > Gobiinae
Etymology: rizensis: Named for the city of Rize, NE Turkey, which is near the type locality.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic. Subtropical; 40°N - , 40°E -
Asia: Turkey (presently known only from the Iyidere Iyidere stream drainage).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 12.4 cm SL male/unsexed; (Ref. 75708); 8.7 cm SL (female)
Morphology | Morphometrics
soft rays: 11 - 13. This species is distinguished by the following characters: D1 VII; D2 I/17; A I/11-13; P 17-18; nape completely with cycloid scales; width of head 1.4-1.6 of depth; interorbit 0.7-0.9 eye diameter; angle of jaws ending below anterior edge of eye; snout 1.6-1.8 orbit of eye; upper lip 0.9-1.3 lateral preorbital area; pelvic length 0.6 abdomen length; 2 suborbital transverse rows below row b; subortbital transverse rows 1, 2, and 3 begin more distant from orbit than row 4 (Ref. 75708).
Found in a stream with fresh, running water and a bottom with rounded pebbles, at an altitude of 11 m above sea level and 3.4 km away from the sea. Syntopic species found with this species were Alburnus bipunctatus, Barbus tauricus, Capoeta banarescui, Chalcalburnus chalcoides, Chondrostoma colchicum, Cobitis splendens;
Lampetra lanceolata, Leuciscus cephalus, Liza aurata; Mugil cephalus, Rutilus frisii, and Salmo labrax (Ref. 75708).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kova?i?, M. and S. Engín, 2008. Two new species of Neogobius (Gobiidae) from northeastern Turkey. Cybium 32(1):73-80. (Ref. 75708)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00421 - 0.01885), b=3.07 (2.89 - 3.25), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.5 ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (26 of 100) .