Tonga coralbrotula
📖 Overview
Tonga coralbrotula (Diancistrus tongaensis) is a ray-finned fish of the family Dinematichthyidae. It inhabits marine (saltwater) waters in reef-associated environments. This species can reach a maximum total length of 4.5 cm. It occurs at depths between 1 and 10 metres. With a trophic level of 3.3, 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 soft rays (total): 71 - 80; Anal soft rays: 57 - 66; Vertebrae: 39 - 42. This species is characterized by the following: vertebrae 11+(28)29-31=(39) 40-42, dorsal fin rays 71-80, anal fin rays 57-66; small eyes (1.3-2.3% SL); outer pseudoclasper with large ear-lobe extension, ventrally opening; inner pseudoclasper free from outer pseudoclasper, with supporter, forming a broad, distally expanded, not inclined flap, with short thorn; narrow scale patch on cheek, no scales on operculum; head profile slender; otolith length to height ratio 1.9-2.0 .: elongated.
🌀 Behaviour
Behavioural data for Tonga coralbrotula is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; reef-associated; depth range 1 - 10 m . Tropical Central Pacific: New Caledonia to southern Vanuatu, Fiji, Tonga and Samoa; tentatively Santa Cruz Islands (Vanikolo), Vanuatu (Banks Islands), Phoenix Islands (Kiribati), Wallis Island and Tahiti.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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