Nothobranchius Krysanovi
📖 Overview
Found in ephemeral pools and swamps on floodplains; water level in the habitats is subject to seasonal changes and generally the water disappears completely during the dry season . Grass vegetation is usually found near the habitat margins; much of the swamps may be utilised by local inhabitants for the cultivation of rice; aquatic vegetation may comprise Nymphea, Ottelia, Lagarosiphon and Utricularia species . It has an annual mode of reproduction .
🔬 Taxonomy
🐟 Physical Description
Dorsal spines (total): 0; Dorsal soft rays (total): 15 - 17; Anal spines: 0; Anal soft rays: 15 - 17. Diagnosis: Nothobranchius krysanovi is distinguished from other species of the genus Nothobranchius by the following combination of characters: males with bright colouration consisting of alternating light blue and orange-red oblique bars on body, dorsal and anal fins, and orange-brown caudal fin with orange subterminal and black terminal band; female with faint brown oblique bars on posterior part of flanks . It can be distinguished from the other species of the subgenus Nothobranchius as follows: from N. furzeri by male colouration, higher number of dorsal fin rays, 15-17 vs. 14-15; from N. kadleci by male colouration and shape of the frontal region, higher number of dorsal and anal fin rays, 15-17 vs. 13-14 and 15-17 vs. 13-14; and from N. orthonotus by male and female colouration, and lower number of scales on the mid-longitudinal series, 27-29 vs. 28-33 . Nothobranchius krysanovi can also be distinguished from N. rachovii by its higher number of diploid chromosomes, 2n=18 vs. 2n=16; and from N. pienaari by its much lower diploid chromosome number, 2n=18 vs. 2n=34 . : fusiform / normal.
🌀 Behaviour
Behavioural data for Nothobranchius Krysanovi is currently being reviewed.
🦐 Diet
🥚 Reproduction
🌍 Habitat & Distribution
Freshwater; benthopelagic. Tropical north of the lower Zambezi River in east-central Mozambique (Ref.
🌿 Ecology
📐 Morphometrics
🌡️ Water Parameters & Tolerance
🛡️ Conservation Assessment
📊 Population Risk & Fisheries
🦠 Common Diseases
The following diseases are known to affect Nothobranchius Krysanovi.
🔍 Similar Species
🗺️ Global Occurrence Map
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 2 records indexed .
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