Trout-perch

📖 Overview

Adults occur in lakes, deep flowing pools of creeks, and rivers . Usually found over sand . They move into the shallows of lakes at night to feed and moves back to deeper water as dawn approaches . They feed on insect larvae, amphipods and fishes . Important forage fish .

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 1 - 3; Dorsal soft rays (total): 9 - 11; Anal spines: 1; Anal soft rays: 5 - 9; Vertebrae: 33 - 36. Distinguished by the presence of an adipose fin; small weak spines in the dorsal and anal spines; rough ctenoid scales; and pectoral fins reaching well behind the bases of pelvic fins . Gill rakers short, stubby mounds with small teeth; lateral line nearly straight . Pale yellowish to silvery, often almost transparent; with a row of about 10 dark spots along midline of back, 10 or 11 spots along lateral line, and another row of spots high on sides above lateral line; fins transparent .: elongated.

🌀 Behaviour

Behavioural data for Trout-perch is currently being reviewed.

🦐 Diet

Diet information for Trout-perch is currently being compiled.

🥚 Reproduction

Spawning adults move inshore to shallow water or into shallow tributaries of lakes . Two or more males cluster with a single female near the surface. They press close to the female, often breaking the surface of the water, and eggs and milt are released . Some populations spawn exclusively at night , but others show no variation from daytime spawning . There is often, perhaps usually, heavy postspawning mortality .

🌍 Habitat & Distribution

Freshwater; demersal; potamodromous ; depth range 10 - 61 m . Temperate; 68°N - 37°N North America: Atlantic and Arctic basins throughout most of Canada, and south to Potomac River drainage in Virginia, USA; Yukon River drainage in Yukon Territory and Alaska; Great Lakes and Mississippi River basins south to West Virginia, Kentucky, Illinois, Missouri, North Dakota and Montana in the USA.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🌐 Names & Taxonomy

🐠 Related Species

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 39 records indexed .

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