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💧 Freshwater 🌡️ Tropical

Hypostomus Sertanejo

Hypostomus sertanejo Zawadzki, Ramos & Sabaj Pérez, 2017
Max Length
18.9 cm
Max Weight
-
Lifespan
-
Trophic Level
-
Depth
-
Climate
Tropical
Resilience
Medium
Vulnerability
38.00/100
Typical Length
-
Depth Zone
demersal

📖 Overview

Known from Rio Jaguaribe basin and in nearby Rio Choró, where most records are from the Rio Salgado, a tributary of the Jaguaribe. These rivers are intermittent with clear water, with rock and sand and variable remnants of riparian vegetation. Its native occurrence in the Rio Choró is questionable due to an artificial channel linking it to the Rio Jaguaribe that was opened in October 1993. It occurs sympatrically with loricariids Loricariichthys derbyi, Parotocinclus cearensis, Parotocinclus jumbo, Parotocinclus spilurus, Pseudancistrus genisetiger. Other associated species include Leporinus taeniatus, Astyanax aff. fasciatus, Hemigrammus marginatus, Hemigrammus sp., Moenkhausia costae, Moenkhausia intermedia, Serrasalmus rhombeus, Tetragonopterus argenteus, Serrapinnus heterodon, Serrapinnus piaba, Hoplias malabaricus, Pimelodella dorseyi, Cichlasoma orientale, Crenicichla menezesi and the invasive cichlid Oreochromis niloticus .

Scientific Name
Hypostomus sertanejo
Authority
Zawadzki, Ramos & Sabaj Pérez, 2017
Habitat
Freshwater
Climate
Tropical
Max Length
18.9 cm
Resilience
Medium
Vulnerability
38.00/100
Salinity
0–0.5 ppt

🐟 Physical Description

Dorsal spines (total): 2; Dorsal soft rays (total): 7; Anal soft rays: 4. This species is distinguished by the following characters: fins and dermal-plated regions of head and body with pale spots or vermiculations on darker background; the caudal peduncle is laterally rounded; teeth slender and numerous, 34-75 on dentary and premaxilla; dorsal-fin spine when depressed not reaching the adipose-fin spine; pectoral-fin spine is longer than unbranched pelvic-fin ray; dorsal-fin with 7 branched rays; one predorsal plate (rarely 2) bordering the supraoccipital; teeth bicuspid asymmetrical .Cross section: oval.

🌀 Behaviour

Behavioural data for Hypostomus Sertanejo 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

📐 Morphometrics

Length–Weight Relationship: W = 0.01585 × L2.95 (TL)
Max TL
18.9cm
Dorsal Spines
2
Dorsal Rays
7
Anal Rays
4

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
38.00/100
Moderate vulnerability
Climate Zone
Tropical
Described By
Zawadzki, Ramos & Sabaj Pérez, 2017

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