Grandperrin's giant sawbelly
📖 Overview
Grandperrin's giant sawbelly (Hoplostethus grandperrini) is a ray-finned fish of the family Trachichthyidae. It inhabits marine (saltwater) waters in pelagic environments. This species can reach a maximum total length of 45.5 cm. It occurs at depths between 500 and 675 metres. With a trophic level of 3.7, it is a mid-level predator. It is assessed as Data Deficient on the IUCN Red List.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 6; Dorsal soft rays (total): 13; Anal spines: 3; Anal soft rays: 9; Vertebrae: 26. This species is distinguished by the following characters: pectoral-fin rays 17-18; total gill rakers on outer side of first arch 19-20; abdominal scutes 13-14, scutes rectangular and rugose in large individuals; predorsal scales, 21-24; isthmus no scales; body scales adherent; lateral line scales with strong medial ridge and spine posteriorly and with numerous fine rather long spines in small individuals, scales rugose, lacking a posterior spine in large adults; predorsal midline scales forming very low ridge in small individuals, no ridge apparent in very large individuals; body ovoid and deep, depth 1.8-1.9 in SL; dorsal profile of head gently curved; dorsal- and anal-fin spines of moderate thickness; pectoral fin of moderate length, reaching base of second anal-fin spine in small individuals, to 10th-11th abdominal scute in largest; adults orange-red; buccal cavity mostly white, black only on roof of mouth posteriorly, opercular recess black anteriorly, much paler near periphery .: short and / or deep; Cross section: oval.
🌀 Behaviour
Behavioural data for Grandperrin's giant sawbelly is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; pelagic-oceanic; depth range 500 - 675 m . Subtropical Northwest Pacific: types collected at Seamount 'B' in the northern portion of the Norfolk Ridge, south of New Caledonia and on the south-eastern slope of New Caledonia’s Grande Terre.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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