Silver cyprinid

📖 Overview

Highly adapted to pelagic life . Found inshore and offshore . Known from the surface of inshore and coastal waters; some records from surface waters over great depth . Adults stay near the bottom during the day and near the surface at night . Juvenile fish migrate away from the shore after spending their larval stage in shallow areas . In Lake Kyoga occurring in open water away from water-lily swamps; in Victoria Nile caught in turbulent regions . Feed on zooplankton and surface insects and eaten by birds and various fish species, mainly siluroids including Schilbe mystus, Clarias gariepinus, Bagrus docmak and Synodontis victoriae . Mature individuals spawn in the lake and produce floating eggs . Sensitive to low oxygen conditions .

🔬 Taxonomy

🐟 Physical Description

Dorsal soft rays (total): 9 - 11; Anal soft rays: 16 - 19. Diagnosis: body strongly compressed , body height 4.25-4.75 times in body length, caudal peduncle twice as height as long . Lower jaw slightly prominent . Mouth large, terminal and rather oblique, without lips or circumoral barbels , extending to below anterior border of eye . Cheek largely covered by thin suborbital bones . Branchiospines rather short but not rudimentary; pharyngeal teeth conical . Gill rakers moderately long , 16 on (lower part of) first branchial arch . Scales moderately large, 42-56 on lateral line . Lateral line descending from about upper part of gill opening to just before ventral-fin origin , more or less following the ventral body profile from ventral fin to caudal peduncle . Dorsal fin situated almost entirely above anal fin . Anal-fin base about twice as long as dorsal-fin base . 12-17 branched anal-fin rays . Pectoral fin not reaching pelvic fin . Body silver with an overall nacreous sheen , yellowish brown above . Caudal fin yellow, other fins colourless , white or greyish . Dead specimens with a distinct mid-lateral stripe , stripe silver in life . : fusiform / normal; Cross section: compressed.

🌀 Behaviour

Behavioural data for Silver cyprinid is currently being reviewed.

🦐 Diet

🥚 Reproduction

🌍 Habitat & Distribution

Freshwater; pelagic; depth range 50 - ? m . Tropical; 22°C - 26°C ; 2°N - 7°S known from the Lake Victoria drainage, including Lake Kyoga, Lake Nabugabo and the Victoria Nile (Ref.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🦠 Common Diseases

The following diseases are known to affect Silver cyprinid.

🔍 Similar Species

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 4 records indexed .

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