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> Gobiiformes (Gobies) > Gobiidae (Gobies) > Gobiinae
Etymology: Bathygobius:Greek, bathys = deep + Latin, gobius = gudgeon (Ref. 45335); mero:Named after the MERO Foundation (Indonesian Marine Education and Research Organisation, Tulamben, Bali) for their generous sponsorship of this study; noun in apposition.
Entorno: milieu / zona climática / rango de profundidad / gama de distribución Ecología
marino demersal; rango de profundidad 9 - 30 m (Ref. 132436), usually ? - 15 m (Ref. 132436). Subtropical
Western Pacific: Indonesia, Australia and the Philippines.
Tamaño / Peso / Edad
Madurez: Lm? range ? - ? cm Max length : 3.6 cm SL macho / no sexado; (Ref. 132436); 3.5 cm SL (female)
Descripción breve Claves de identificación | Morfología | Morfometría
Espinas dorsales (total) : 7; Radios blandos dorsales (total) : 9; Espinas anales: 1; Radios blandos anales: 8; Vértebra: 27. This species is distinguished by the following characters: D VI+I,9; A I,8; pectoral-fin rays 19–21 (usually 20); lateral scales 33 or 34; transverse scales backwards 11 or 12; median predorsal scales 2 or 3; absence of skin flaps on pores or anterior nasal tube; upper three rays of pectoral fin each with two free filamentous tips, upper branch of fourth ray with short, free tip; mental frenum possess a straight margin and short lateral lobes; cheek and operculum scales absent; pectoral-fin base, abdomen, and prepelvic region with embedded cycloid scales; cheek with a slight fold; pelvic interspinal membrane without a median lobe; tongue tip with a median notch. Colouration: when alive, overall pale greyish with a dense covering of reddish-brown freckles, with a brown spot about one-third of pupil size at uppermost part of gill opening, reddish-brown spotting on fins (Ref. 132436). Cross section: compressed.
This species has a commensal association with the large barrel sponge (Xestospongia testudinaria), unlike other members of the genus, which are typically free-living bottom dwellers. The type specimens were found living on a single sponge in 18 m depth. Numerous other individuals were also observed at this location, and all were associated with barrel sponges, with up to about 20 individuals on a single sponge, at depths ranging from 9-30 m. The goby inhabits the outer surface of the sponge and not the hollow central cavity, and occupies the deep, convoluted ravines between the longitudinal ridges and was not seen in the shallower ravines of the sponge. It also inhabits deeper water, but usually below about 15 m compared with most Bathygobius, which are mainly confined to shallow water less than 10 m deep (Ref. 132436).
Ciclo vital y comportamiento de apareamiento Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Allen, G.R., M.V. Erdmann and N.K. Ichida, 2024. A new sponge-dwelling goby (Gobiidae: Bathygobius) from Indonesia, Philippines, and Australia. J. Ocean Sci. Found. 41:46-53. (Ref. 132436)
Situación en la Lista Roja de la UICN (Ref. 130435: Version 2025-2 (Global))
Ecología Trófica Alimentos (presas) Composición de la dieta consumo de alimento Raciones de comida Despredadores
Ecología Ecología
Dinámica de la población Coeficiente del crecimiento para Edades / tallas máximas Longitud-peso rel. Longitud-longitud rel. Longitud-frecuencias Conversión de masas Reclutamiento Abundancia
Ciclo de vida Reproducción Madurez Madurez/Gills rel. Fecundidad Puesta Agregaciones de desove Huevos Desarrollo de los huevos Larva Dinámica larvaria
Fisiología Composición corporal Nutrientes Consumo del oxígeno Tipo de natación Velocidad de natación Pigmentos visuales Sonido de peces Enfermedades y parásitos Toxicidad (CL50)
Índice de diversidad filogenética (Referencia 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00741 (0.00347 - 0.01582), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Nivel trófico (Referencia 69278): 3.2 ±0.5 se; based on size and trophs of closest relatives
Resiliencia (Referencia 120179): Alto, población duplicada en un tiempo mínimo inferior a 15 meses (Preliminary K or Fecundity.).
Vulnerabilidad pesquera (Ref. 59153): Low vulnerability (10 of 100). 🛈
