Gymnocephalus Ambriaelacus
📖 Overview
Ripe females were collected in shallow water between 3-5 m depth in May and spawned immediately in captivity . Eggs, measuring ~1 mm in diameter, were observed on the bottom and were only weakly adhesive, but some of them were floating .
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 14 - 16; Dorsal soft rays (total): 10 - 12; Anal spines: 2; Anal soft rays: 5 - 6. Distinguished from Gymnocephalus cernua by having smaller angle between the posterior dorsal fin margin and the caudal peduncle (90-110° vs. 113-154°), larger eye diameter (10.2-12.3 % SL vs. 7.9-10.5 % SL) and an irregular pattern of large dorsolateral dark blotches vs. a pattern of small dots. Differs from Gymnocephalus cernua by having a deeper body (26.1-33.6 % SL vs. 20.1-30.7 % SL), longer base of the spinous part of the dorsal fin (36.1-41.9 % SL vs. 28.8-39.6 % SL) and higher mean and modal number of dorsal fin spines (modal 15 vs 14). Diagnosed from Gymnocephalus baloni by the combination of the following characters: larger eye diameter (10.2-12.3 % SL vs. 8.2-10.5 % SL), smaller caudal peduncle depth (7.7-8.9 % SL vs. 7.4-10.1 % SL), higher mean and modal number of pectoral fin rays (15 vs. 13) and a steeper convex dorsal profile of the snout .: fusiform / normal.
🌀 Behaviour
Behavioural data for Gymnocephalus Ambriaelacus is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; benthopelagic. Temperate endemic to Lake Ammersee, upper Danube basin in southern Germany.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🔍 Similar Species
👥 Community & Contribute
No observations yet - be the first to log one!
View all observations for Gymnocephalus Ambriaelacus ↗Spotted incorrect or outdated data? Submit a correction and our editorial team will review it. Approved edits go live within 48 hours.
Found a factual error, broken data, or inappropriate content? Let us know and we will investigate promptly.