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💧 Freshwater Endangered 🌡️ Subtropical

Ameca chub

Algansea amecae Domínguez & Doadrio, 2009
Max Length
10.1 cm
Max Weight
-
Lifespan
-
Trophic Level
2.9
Depth
-
Climate
Subtropical
Resilience
High
Vulnerability
29.00/100
Typical Length
-
Depth Zone
pelagic

📖 Overview

Ameca chub (Algansea amecae) is a ray-finned fish. It inhabits freshwater waters in pelagic environments. This species can reach a maximum total length of 10.1 cm. With a trophic level of 2.9, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Endangered on the IUCN Red List.

Scientific Name
Algansea amecae
Authority
Domínguez & Doadrio, 2009
Habitat
Freshwater
Climate
Subtropical
IUCN Status
EN
Max Length
10.1 cm
Trophic Level
2.9
Resilience
High
Vulnerability
29.00/100
Salinity
0–0.5 ppt

🔬 Taxonomy

Genus
Algansea
Algansea
Species
Ameca chub
Algansea amecae

🐟 Physical Description

24-25 transverse scales (rarely 26); 14 upper row scales (occasionally 13 or 15); 14-19 pores in the infraorbital head sensory canal (usually 15-16). Body is divided dorsoventrally into 4 pigmentation zones as follows: a dark dorsal region; a light band equal to or greater than the width of the pupil; a prominent dark lateral stripe along body, considerably narrower at the anterior region just before the opercular opening; and a silver ventral region. Black spot at the base of caudal fi n set off from lateral stripe by a constriction of the pigment band, the spot extending out onto median caudal interradial membranes. Lateral line pigmented, edged by high concentrations of melanophores around scale pores .

🌀 Behaviour

Behavioural data for Ameca chub is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

🐣 Oviparous
Spawning Season
spring
Spawn Location
Substrate
Fertilization
External

🌍 Habitat & Distribution

Freshwater; pelagic. Subtropical North America: Mexico.

🌿 Ecology

Zone Preferences
💧 Freshwater 🐟 Pelagic
Trophic Level
2.9±0.4

📐 Morphometrics

Length–Weight Relationship: W = 0.00525 × L3.1 (TL)
Max TL
10.1cm

🌡️ Water Parameters & Tolerance

Salinity Range
0–0.5ppt

🛡️ Conservation Assessment

IUCN Category
Endangered
Assessment Date
2018

📊 Population Risk & Fisheries

Population Resilience
High
Minimum doubling time
Fishing Vulnerability
29.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Climate Zone
Subtropical
Described By
Domínguez & Doadrio, 2009

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