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💧 Freshwater 🌡️ Tropical

Cambeva Difficilis

Cambeva difficilis Costa, Feltrin & Katz, 2024
Max Length
8.1 cm
Max Weight
-
Lifespan
-
Trophic Level
3.2
Depth
-
Climate
Tropical
Resilience
-
Vulnerability
10.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Cambeva Difficilis (Cambeva difficilis) is a ray-finned fish. It inhabits freshwater waters in benthic environments. This species can reach a maximum total length of 8.1 cm. With a trophic level of 3.2, it is a low-level carnivore, feeding on invertebrates and small organisms.

Scientific Name
Cambeva difficilis
Authority
Costa, Feltrin & Katz, 2024
Habitat
Freshwater
Climate
Tropical
Body Shape
Elongated
Max Length
8.1 cm
Trophic Level
3.2
Vulnerability
10.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Cambeva
Cambeva
Species
Cambeva Difficilis
Cambeva difficilis

🐟 Physical Description

Dorsal soft rays (total): 12; Anal soft rays: 9. This species is distinguished from its congeners by the following set of characters: having small sub-incisiform odontodes on the basal portion of the opercular and interopercular patches; a unique color pattern of the caudal fin present, comprising a yellowish-white zone on the basal portion of the fin and posteriorly edged by a black zone, more conspicuous immediately after collection; short mesethmoid cornua, distally terminating in sharply pointed tips; a relatively short interopercle, its largest length about half of the longitudinal length of the hyomandibula; compact parurohyal, with a relatively short lateral process, a broad anterior head with an indistinct antero-lateral paired process, and without basal constriction; short barbels, with the nasal barbel reaching an area just posterior to the orbit; maxillary barbel reaching the posterior portion of the interopercular patch of odontodes; rictal barbel reaching the anterior portion of the interopercular patch of odontodes; pelvic fin bases medially separated by a broad interspace, about half of the pelvic fin base length; anal fin origin posterior to the dorsal fin base .: elongated; Cross section: flattened.

🌀 Behaviour

Behavioural data for Cambeva Difficilis is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; demersal. Tropical South America: Brazil.

🌿 Ecology

Zone Preferences
💧 Freshwater ⬇️ Benthic
Trophic Level
3.2±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00759 × L3 (TL)
Max TL
8.1cm
Dorsal Rays
12
Anal Rays
9

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.2
Predator
Body Shape
Elongated
Climate Zone
Tropical
Described By
Costa, Feltrin & Katz, 2024

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