>
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Etymology: Cryptocentrus: Greek, kryptos = hidden + Greek, kentron = sting (Ref. 45335); nanus: Name from both Latin and Greek noun 'nanus' for 'dwarf', referring to the species’ particularly small size compared to its congeners; noun in apposition.
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina bentopelagisk; djupintervall 8 - 11 m (Ref. 118501). Tropical
Western Central Pacific: Fiji and possibly Palau.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - 2.34 cm
Max length : 2.2 cm SL hane/ej könsbestämd; (Ref. 118501); 2.3 cm SL (female)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 5; Mjukstrålar i ryggfenan (totalt) : 10; Taggstrålar i analfenan: 1; Mjukstrålar i analfenan: 8 - 9. This species is distinguished by the following characters: D IV-I,10; A I,8-9; pectoral-fin rays 16; scales in longitudinal series 65-81; predorsal scales 0-15; anterior scales cycloid, posterior scales ctenoid; anterior part of breast, prepelvic region, and pectoral-fin base are naked; head naked except on the side of nape and predorsal region, where scales extend anteriorly to about level of middle of operculum; body depth at pelvic-fin origin 4.4-5.2, mean 4.8; vomerine teeth present; gill opening extending forward to a vertical at posterior edge of preoperculum or slightly anterior; dorsal-fin spines progressively longer to fourth, longest 1.6-2.7 in HL; caudal fin rounded, 2.7-3.1 in HL; pectoral fins reaching level of anus or just beyond (3.7-4.7 in SL); pelvic fins reaching posteriorly to anus (3.6-4.3 in SL). Colouration: live individuals are black, fins are black with clear distal margins (Ref. 118501).
Cross section: oval.
Inhabitsf sand bottoms in 8.2-10.7 m depth and partners with an alpheid-shrimp which remains unidentified (deposited specimen CAS 244344). Adults mature at 2.34 cm SL or less (Ref. 118501).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Greenfield, D.W. and G.R. Allen, 2018. Cryptocentrus nanus, a new species of dwarf shrimpgoby from Fiji (Teleostei: Gobiidae). J. Ocean Sci. Found. 30:28-38. (Ref. 118501)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Verktyg
Särskilda rapporter
Ladda ner XML
Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
|
Bayesian length-weight
|
a=0.00741 (0.00346 - 0.01589), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.1 ±0.3 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Low vulnerability (10 of 100). 🛈 |