Alvheim's goby
📖 Overview
Alvheim's goby (Thorogobius alvheimi) is a ray-finned fish of the family Gobiidae. It inhabits marine (saltwater) waters in pelagic, deep-water environments. This species can reach a maximum total length of 10.2 cm. It occurs at depths between 74 and 208 metres. With a trophic level of 3.4, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 7; Dorsal soft rays (total): 11; Anal spines: 1; Anal soft rays: 10; Vertebrae: 28. This species is distinguished from its congeners by the following characters: D1 VI (second and third distinctly elongated), D2 I,11; pectoral fin rays 20-21; complete pelvic disc with short with well-developed anterior membrane (frenum), lateral lobes pointed; nape and predorsal area naked; no scales on the opercle; scales in longitudinal series 27-31; supratemporal rows tr and trp developed and extending transversally between pores H and K; longitudinal row g is short, not passing row m posteriorly and distinctly distant from row h; long infraorbital row 6, ventrally extending to lower margin of preopercle, its ventral section 6i originating anterior to its dorsal section 6s; posterior lateral row h reaching anteriorly above posterior third of opercle; body depth 16.6-20.4% at anal-fin origin in SL; head width 42.9-53.8% in head length; upper jaw long 42.6-45.7% in head length; minimum height of caudal peduncle 34.8-50.2% in caudal peduncle length; large eyes 22.4-31.3% in head length; short caudal fin 27.1-32.3% in SL; body is uniformly pale fawn and brown with margin of scale pockets dark brown pigmented, yielding a reticulated pattern; presence of pale spots on nape and predorsal area; caudal fin is uniformly dusky greyish .: elongated; Cross section: oval.
🌀 Behaviour
Behavioural data for Alvheim's goby is currently being reviewed.
🦐 Diet
Diet information for Alvheim's goby is currently being compiled.
🥚 Reproduction
Reproduction data for Alvheim's goby is currently being compiled.
🌍 Habitat & Distribution
Marine; pelagic-neritic; depth range 74 - 208 m . Deep-water
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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