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🌊 Marine Least Concern 🌡️ Tropical

Rio anchovy

Anchoa januaria Steindachner, 1879
Max Length
10.2 cm
Max Weight
-
Lifespan
-
Trophic Level
2.9
Depth
0–50 m
Climate
Tropical
Resilience
High
Vulnerability
12.00/100
Typical Length
5.5 cm
Depth Zone
pelagic

📖 Overview

A schooling species occurring in coastal waters. Recorded in salinities of 7.94-31.31 ppt in the Santa Cruz canal, Pernambuco, Brazil. More data needed based on correct identifications.

Scientific Name
Anchoa januaria
Authority
Steindachner, 1879
Habitat
Marine
Climate
Tropical
Body Shape
Elongated
IUCN Status
LC
Max Length
10.2 cm
Depth Range
0–50 m
Trophic Level
2.9
Resilience
High
Vulnerability
12.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 0; Anal spines: 0; Anal soft rays: 192 - 22. Snout moderate, about 1/2 eye or a little more; maxilla moderate, tip not sharply pointed, not or only just reaching hind border of pre-operculum; gill cover canals of walkeri-type. Anal fairly short, its origin under about midpoint of dorsal fin base. Anus nearer to pelvic fin tips than to anal fin origin. Silver stripe along flank, about 1/2 eye diameter or a little more.: elongated; Cross section: oval.

🌀 Behaviour

Behavioural data for Rio anchovy is currently being reviewed.

🦐 Diet

Diet information for Rio anchovy is currently being compiled.

🥚 Reproduction

Size at Maturity
6.5cm TL

Spawn in school .

🌍 Habitat & Distribution

Marine; brackish; pelagic-neritic; depth range 0 - 50 m . Tropical; 4°S - 29°S, 50°W - 35°W Southwest Atlantic: Brazil, from Ceará to Santa Catarina.

🌿 Ecology

Zone Preferences
🌊 Marine 🌿 Brackish 🐟 Pelagic
Trophic Level
2.9±0.24
🐠 Schooling

📐 Morphometrics

Length–Weight Relationship: W = 0.00813 × L3.13 (TL)
Max TL
10.2cm
Anal Rays
107

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2017

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
12.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Body Shape
Elongated
Climate Zone
Tropical
Described By
Steindachner, 1879

🌐 Names & Taxonomy

Scientific Synonyms

Scientific Name Author Year Status
Anchovia januaria Steindachner 1879 Synonym
Anchoviella januaria Steindachner 1879 Synonym
Engraulis januarius Steindachner 1879 Synonym

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

Aquareap Community Observations
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View all observations for Rio anchovy ↗
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