New Guinea thryssa

📖 Overview

Adults inhabit streams and associated lagoons, in clear or turbid water; also in brackish estuaries , in main river channels as well as smaller tributaries . A riverine species reaching nearly 900 km up the Fly River, but also down to the estuary. They form shoals in deeper water of lagoons. Breeding biology is poorly understood, but it seems likely that spawning takes place in fresh water as juveniles have been collected from the upper reaches of some Queensland rivers. The diet consists of small crustaceans, fishes, insects and some plant material . Piscivorous (at least as large adults), recorded as feeding on Clupeoides papuensis and Melanotaenia nigra in the Fly River. The only anchovy that is restricted to mainly freshwater habitats . The largest anchovy known so far.

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 0; Dorsal soft rays (total): 12 - 13; Anal spines: 0; Anal soft rays: 35 - 42. Belly with 19 + 12 = 31 keeled scutes from isthmus to anus. Maxilla short, only reaching to front border of pre-operculum; first supra-maxilla about two thirds of second. No dark blotches on nape or behind upper part of gill opening.: elongated; Cross section: compressed.

🌀 Behaviour

Behavioural data for New Guinea thryssa is currently being reviewed.

🦐 Diet

Diet information for New Guinea thryssa is currently being compiled.

🥚 Reproduction

Reproduction data for New Guinea thryssa is currently being compiled.

🌍 Habitat & Distribution

Marine; freshwater; brackish; pelagic-neritic; catadromous . Tropical; 5°S - 15°S

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

👥 Community & Contribute