Shortspine thornyhead

📖 Overview

Very common on soft bottoms . Oviparous . Eggs are extruded in floating gelatinous masses . Have a thick glandular tissue on posterior margin of fin spines which is believed to be venomous . Rarely taken by game fishers . Flesh sweeter than that of other rockfishes .

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 15 - 17; Dorsal soft rays (total): 8 - 9; Anal spines: 3; Anal soft rays: 4 - 5. Head spines very strong - nasal, preocular, supraocular, postocular, tympanic, parietal and nuchal spines present, coronal spines absent; large head and elongate body; strong spiny ridge on head; 3rd dorsal spine not much longer than 2nd, 4th or 5th; strong notch on pectoral fin . Bright red with some black on fins; gill chamber mostly pale . Caudal slightly rounded .: fusiform / normal.

🌀 Behaviour

Behavioural data for Shortspine thornyhead is currently being reviewed.

🦐 Diet

Nutrition information for shortspine thornyhead is as follows. == References ==

🥚 Reproduction

Unlike other representatives of this group, this species has internal fertilization Oviparous . Females possess specialized ovarian structures including stalk-like ovigerous lamellae and secretory epithelia .

🌍 Habitat & Distribution

Marine; demersal; depth range 17 - 1600 m , usually 91 - ? m . Temperate North Pacific: Sea of Okhotsk north to the Navarin Canyon in the Bering Sea and from Stalemate Bank and Ulm Plateau in the Aleutian Islands southeast to Cedros Island, Baja California, Mexico.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🌐 Names & Taxonomy

Scientific Synonyms

🐠 Related Species

🔍 Similar Species

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 22 records indexed .

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