Brazilian dusky jawfish

📖 Overview

This species is common in coastal regions, in depths associated with gravel-sand bottoms, near coral reefs and rocky areas. Feeds mainly on small benthic organisms near the bottom (e.g., small shrimps, crabs, and isopods) .

🔬 Taxonomy

🐟 Physical Description

Dorsal spines (total): 11; Dorsal soft rays (total): 14; Anal spines: 2 - 3; Anal soft rays: 12 - 13; Vertebrae: 27. This species is distinguished by the following set of characters: anterior nostril is a short tube with simple cirrus on posterior rim; maxilla rigid, not produced as a thin flexible lamina posteriorly; no supramaxilla; subopercle without a broad, fan-like flap; vomer no teeth; body with 43-47 oblique body scale rows in longitudinal series; vertebrae 10 + 17 = 27. Colouration: sides with two rows of pale spots, each approximately diameter of eye; body with six vertically irregular, evenly spaced bands, widest on mid-side, and two rows of six pale spots, each spot approximately diameter of eye; buccal area surrounding esophageal opening is pale. Also easily disinguished from its congeners by the divergence in the mitochondrial gene COI, as specimens form a monophyletic group that differs from its closest relative (O. whitehursti) by an average of 11% (654 bp analyzed) .Cross section: oval.

🌀 Behaviour

Behavioural data for Brazilian dusky jawfish is currently being reviewed.

🦐 Diet

Diet information for Brazilian dusky jawfish is currently being compiled.

🥚 Reproduction

Reproduction data for Brazilian dusky jawfish is currently being compiled.

🌍 Habitat & Distribution

Marine; reef-associated; depth range 10 - 25 m . Tropical Southwest Atlantic Ocean: Brazil.

🌿 Ecology

📐 Morphometrics

🌡️ Water Parameters & Tolerance

🛡️ Conservation Assessment

📊 Population Risk & Fisheries

🐠 Related Species

🔍 Similar Species

👥 Community & Contribute