Polynesian sandperch
📖 Overview
Polynesian sandperch (Parapercis johnsoni), first described by Ho, 2015 is a small fish in the family Pinguipedidae (order Perciformes). Adults typically reach 10.70 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 84 to 114 metres. It occurs in Tropical waters. It feeds on a mix of small fish and invertebrates as a mid-level predator.
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 5; Dorsal soft rays (total): 21 - 211; Anal spines: 1; Anal soft rays: 17; Vertebrae: 30. This species is distinguished from all its congeners by the following characters: the 4th and 5th dorsal-fin spines about equal in length; D V,21; A I,17; pectoral-fin rays modally 17; pored lateral-line scales modally 52 or 53; median predorsal scales 7 or 8; transverse scale rows modally 4/14; gill rakers on 1st gill arch 13-16; single row of teeth on vomer; no teeth on palatine; 3 pairs of enlarged canines at front of lower jaw; single large pore on front of chin; single row of 6 large pores on free margin of preopercle; upper lobe of caudal fin prolonged. Colouration: dorsal surfaces of the head and body and dorsal fins uniformly brownish with 3-7 irregular black patches on soft dorsal fin .Cross section: oval.
🌀 Behaviour
Behavioural data for Polynesian sandperch is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Marine; demersal; depth range 84 - 114 m . Tropical South Pacific: French Polynesia, Marquesas Is.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
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