Divandu Albimarginatus

📖 Overview

Inhabits the middle and lower parts of the river basins; collection sites are in regions with primary or secondary forests. The water is clear with transparency of more than 100 cm, acidity approximately neutral (pH 7-7.5) with low conductivity (50 µS) and temperatures 21-22°C. The species lives syntopically with Chromidotilapia mamonekenei, which is more abundant than D. albimarginatus . Feeds on small particles (both animal- and plantbased), detritus and aufwuchs . Polygamous, ovophilic, female mouthbrooder . Possibly larvophilic .

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 13 - 16; Dorsal soft rays (total): 9 - 12; Anal spines: 3; Anal soft rays: 7 - 8; Vertebrae: 24 - 25. Diagnosis: relatively deep-bodied , particularly so in large specimens (depth 27.8-40.2% SL) . Head short (HL 31.9-37.2% SL); snout generally shorter than postorbital length; ascending process of premaxilla about one third longer than dentigerous arm; outer and inner row teeth in oral jaws unicuspid . Laterosensory system in the lachrymal bone with 5 openings . Infraorbital series complete (lachrymal bone and 4 other) . First pelvic fin ray longest in adults of both sexes , usually reaching anus or beyond . Pectoral fin somewhat shorter than pelvic; some dorsal and anal rays produced (branched dorsal rays 4-6, branched anal rays 4-5 longest), upper and lower caudal rays also produced in both sexes; caudal peduncle somewhat deeper than long . 2.3-3 scales between highest point of upper lateral line (about the 8-9th pored scale) and dorsal fin base; between the last 2-4 pored scale and the dorsal fin base 1 or 1 large and 1 very small scale . 12 circumpeduncular scales . Chest scales markedly smaller than flank scales . No sexual dimorphism in morphology or coloration . Coloration: base body colour pale brown, cheeks and ventrum somewhat paler; usually 6-7 vertical bars on flanks; opercular spot well marked; reddish black maculae on caudal, soft dorsal and anal fins, often forming distinct bands proximally on the fins . Dorsal, anal and pelvic fins , and upper and lower edge of caudal fin, with narrow red margin , caudal fin also with thin white submargin . Lower edge of caudal with white margin; metallic (silvery) flush below red margin on soft dorsal fin .: short and / or deep; Cross section: compressed.

🌀 Behaviour

Behavioural data for Divandu Albimarginatus is currently being reviewed.

🦐 Diet

Diet information for Divandu Albimarginatus is currently being compiled.

🥚 Reproduction

Reproduction data for Divandu Albimarginatus is currently being compiled.

🌍 Habitat & Distribution

Freshwater; pelagic. Tropical

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🔍 Similar Species

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 38 records indexed .

👥 Community & Contribute