Pacific electric ray

📖 Overview

Found on the outer continental shelf, around rocks, in kelp beds, over fine sand bottoms or buried in sand. Solitary, nomadic, and can remain suspended in the water with minimal swimming . Feeds on bony fishes, mainly herrings and halibuts. Ovoviviparous . Produces litters of up to 17 pups. Males reaches maturity at ca. 65 cm TL, females at ca. 73 cm TL . Attacks their prey from the substratum by day and actively forage at night with the aid of its electric organ discharge or EOD . The EOD of a large individual was measured at 50 V; with a low internal organ resistance the power output exceeded 1 kW . Aggressive when provoked but no human has yet been injured by the electric shock . Does not do well in aquariums .

🔬 Taxonomy

🐟 Physical Description

Gray with scattered black spots dorsally, no ocelli. 1st dorsal fin much larger than 2nd. Spiracle margin smooth and without papillae.: other.

🌀 Behaviour

Behavioural data for Pacific electric ray is currently being reviewed.

🦐 Diet

Diet information for Pacific electric ray is currently being compiled.

🥚 Reproduction

Exhibit ovoviparity (aplacental viviparity), with embryos feeding initially on yolk, then receiving additional nourishment from the mother by indirect absorption of uterine fluid enriched with mucus, fat or protein through specialised structures . Reproductive cycle appears to be annual in males and biannual in females . No defined birthing season .

🌍 Habitat & Distribution

Marine; demersal; depth range 0 - 906 m , usually 3 - 200 m . Temperate; 48°N - 23°N, 126°W - 110°W

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 10 records indexed .

👥 Community & Contribute