Klassifizierung / Names
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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobionellinae
Etymology: Rhinogobius: Greek, rhinos = nose + Latin, gobius = gudgeon (Ref. 45335); sagittus: Derived from the Latin word sagitto (arrow); the specific name refers to the arrow-shape of the infraorbital deep brown mark on the anterior portion of cheek in male.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
; süßwasser demersal; tiefenbereich 0 - ? m (Ref. 79879). Subtropical
Asia: China (Minjiang basin in Fujian Prov.).
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 3.5 cm SL Männchen/unbestimmt; (Ref. 79879)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenstacheln (insgesamt) : 7; Rückenflossenweichstrahlen (insgesamt) : 8; Afterflossenstacheln: 1; Afterflossenweichstrahlen: 7. Diagnosed from all other species of the genus Rhinogobius by the unique combination of the following characters: second dorsal fin with one spine and 8 rays; anal fin with one spine and 7 rays; pectoral fin with 16-17 rays; scale on longitudinal series 29-31; predorsal scales 3-4; vertebrae 10+16 (total 26); gill opening restricted, reaching ventrally near vertical midline of opercle; body side with 5-6 major patches of blackish-brown clusters of irregular small spots in male; caudal fin base with either an arrow-shaped black mark or a rounded black spot in male; dorsal part of snout with a pair of deep red stripes; cheek with an arrow-shaped infraorbital red to brown curve following with 4-5 parallel, oblique brown stripes in male; branchiostegal membrane grayish with 8-10 rounded red spots in male; and pectoral fin with semicircular creamy yellow background, and a median orange spot and vertical orange bar on lower half (Ref. 79879).
Body shape (shape guide): elongated.
Inhabits shallow riffles with depth 20-40 cm, substratum of small pebbles and slow to moderate water flow (Ref. 79879).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Chen, I.-S. and P.J. Miller, 2008. Two new freshwater gobies of genus Rhinogobius (Teleostei: Gobiidae) in Southern China, around the northern region of the South China sea. The Raffles Bull. Zool. 19:225-232. (Ref. 79879)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Fischereien: nicht kommerziell
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00813 (0.00359 - 0.01840), b=3.08 (2.91 - 3.25), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245). |
Trophische Ebene (Ref. 69278) |
3.2 ±0.4 se; based on size and trophs of closest relatives |
Widerstandsfähigkeit (Ref. 120179) |
hoch, Verdopplung der Population dauert weniger als 15 Monate. (Preliminary K or Fecundity.). |
Anfälligkeit der Fischerei (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |