Overview

Comprehensive Description

Biology

A resident intertidal species with homing behavior (Ref. 32612). Mainly found in saltwater marshes and in tidal creeks. May leave tide pools if aquatic conditions become inhospitable (Ref. 31184). Enters fresh water to limited extent (Ref. 7251). Not a seasonal killifish. Breathes air when out of water (Ref. 31184). Difficult to maintain in aquariums (Ref. 27139). Its introduction has caused the decline of native species and near extinction of Aphanius baeticus in southwestern Spain (Ref. 59043).
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Distribution

Western Atlantic: Canada (Ref. 5951) to Sandy Hook, New Jersey to northeastern Florida, and in lower Chesapeake and Delaware bays (Ref. 35624). Introduced to southern Portugal and southern Spain (Ref. 59043).
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Physical Description

Size

Max. size

15.0 cm TL (male/unsexed; (Ref. 27139))
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Ecology

Habitat

Environment

benthopelagic; non-migratory; freshwater; brackish; marine
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Trophic Strategy

A resident intertidal species with homing behavior (Ref. 32612). Mainly found in saltwater marshes and in tidal creeks. May leave tide pools if aquatic conditions become inhospitable (Ref. 31184). Enters fresh water to limited extent (Ref. 7251). Omnivorous feeder, food includes small crustaceans, polychaetes, insect larvae and vegetable matter. Preyed upon by kingfishers, small mammals, brook trout and bullfrogs.
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Life History and Behavior

Life Cycle

Deposits eggs in the shells of Modiolus demissus.
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Fundulus heteroclitus heteroclitus

The following is a representative barcode sequence, the centroid of all available sequences for this species.


No available public DNA sequences.

Download FASTA File
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Statistics of barcoding coverage: Fundulus heteroclitus heteroclitus

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 2
Species With Barcodes: 1
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Conservation

Threats

Not Evaluated
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Relevance to Humans and Ecosystems

Benefits

Importance

aquarium: commercial
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