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Diadromous 🌡️ Subtropical

Bermuda killifish

Fundulus bermudae Günther, 1874
Max Length
12.9 cm
Max Weight
-
Lifespan
-
Trophic Level
2.9
Depth
-
Climate
Subtropical
Resilience
Medium
Vulnerability
18.00/100
Typical Length
6.1 cm
Depth Zone
-

📖 Overview

A euryhaline species found only in a limited number of small, isolated fresh water, brackish water, and marine ponds . Recent study confines the distribution of this species to seven small, anchialine ponds in Bermuda . Total estimated population is 15,200 individuals in Mangrove Lake which is the largest anchialine pond in Bermuda . Non-annual killifish . May form loose schools consisting of equally sized individuals . An omnivorous fish, feeding on filamentous green algae, plant material, mollusks, crustaceans and insects . The main predators include a variety of birds (mostly herons), and fishes (eastern mosquito fish Gambusia holbrooki, gray snapper Lutjanus griseus, and American eel, Anguilla rostrata). Additionally, it is believed that the introduced and invasive red-eared terrapin Trachemys scripta elegans is a significant predator in a limited number of ponds . Spawning period occurs from February to September in Mangrove Lake, with primary peaks in May and June for males and females, respectively .

Scientific Name
Fundulus bermudae
Authority
Günther, 1874
Habitat
Diadromous
Climate
Subtropical
Max Length
12.9 cm
Trophic Level
2.9
Resilience
Medium
Vulnerability
18.00/100
Migration
Non-migratory
Salinity
30–40 ppt

🐟 Physical Description

Physical description for Bermuda killifish is currently being compiled.

🌀 Behaviour

Behavioural data for Bermuda killifish is currently being reviewed.

🦐 Diet

aquatic invertebrates
small fish
algae
detritus

🥚 Reproduction

Size at Maturity
7.7cm TL

🌍 Habitat & Distribution

Marine; freshwater; brackish; benthopelagic; non-migratory. Subtropical Central Atlantic: Endangered and endemic species found in Bermuda with highly fragmented populations and a very limited range (Ref.

🌿 Ecology

Zone Preferences
🌊 Marine 💧 Freshwater 🌿 Brackish
Migration
Non-migratory
Trophic Level
2.9±0.35
🐠 Schooling

📐 Morphometrics

Length–Weight Relationship: W = 0.00724 × L3.17 (TL)
Max TL
12.9cm

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

📊 Population Risk & Fisheries

Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
18.00/100
Low vulnerability
Trophic Level
2.9
Omnivore / Planktivore
Climate Zone
Subtropical
Described By
Günther, 1874

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