>
Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobiinae
Eponymy: Edwin Janss Jr (1915–1989) was a Californian real estate developer, Chairman of Janss Investment Corporation, and a recreational diver. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / distribuzione batimetrica / distribution range
Ecologia
marino associati a barriera corallina; distribuzione batimetrica 10 - 25 m (Ref. 87125). Tropical
Eastern Central Pacific: Costa Rica , Panama and Mexico.
Size / Peso / Age
Maturità: Lm ?  range ? - ? cm
Max length : 3.0 cm SL maschio/sesso non determinato; (Ref. 11482)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 6 - 7; Raggi dorsali molli (totale) : 9; Spine anali: 1; Raggi anali molli: 8. This species is distinguished by the following characters: fewer second dorsal and anal-fin rays than other species; a spotted head and body; distinctive head shape, when viewed dorsally, it is narrow and compressed anterior to the eyes, broadening posteriorly due to
the thick cheek muscles; males typically with a large mouth extending beyond the end
of the eye (Ref. 87125).
Body shape (shape guide): elongated.
Occurs in reefs and rock outcrops surrounded by sand (Ref. 11482). Minimum depth from Ref. 58018.
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
Allen, G.R. and D.R. Robertson, 1994. Fishes of the tropical eastern Pacific. University of Hawaii Press, Honolulu. 332 p. (Ref. 11482)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
Download XML
Fonti Internet
Estimates based on models
Preferred temperature (Fonte Biblio.
123201): 26.6 - 29.1, mean 28.2 °C (based on 129 cells).
Phylogenetic diversity index (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00724 (0.00339 - 0.01546), b=3.10 (2.92 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Fonte Biblio.
69278): 3.1 ±0.3 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio.
120179): Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
🛈