Black-spotted goby (Istigobius nigroocellatus)

Scientific name: Istigobius nigroocellatus G?nther, 1873

The Black-spotted goby (Istigobius nigroocellatus) is a marine fish of the family Gobiidae.

Biology

Dorsal spines (total): 7; Dorsal soft rays (total): 10-12; Anal spines: 1; Anal soft rays: 9 - 11; Vertebrae: 26. Upper pectoral fin rays entire. 3 spots forming a `V' on caudal base; black spot basally between dorsal spines V-VI; pectoral base, cheek and operculum with many dusky melanophores; pelvic fins black. Longitudinal black bar off distal part of upper jaw. Trunk scales ctenoid, predorsal cycloid. In male, anal fin dusky and when appressed, reaching or almost reaching caudal fin, appressed dorsal fin overlapping caudal fin. In female, appressed anal and dorsal fins extending within 1-2 scales from caudal.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name: Istigobius nigroocellatus
Family: Gobiidae (Gobies)
Order: Perciformes (Perch-like fish)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 6.5
Environment: Marine; demersal
Climate: Tropical
Distribution: Eastern Indian Ocean: Western Australia and Northern Territory, Australia. Western Pacific: Philippines, Papua New Guinea, Queensland in Australia, New Caledonia, American Samoa, the Solomon Islands. Also reported from Indonesia and Iriomotejima, Japan.
Conservation status (IUCN): Not Evaluated
Threat to humans: Harmless
Uses: Aquarium: commercial
Resilience: High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)