Bicolor toadfish (Opsanus dichrostomus) fish species and information / pictures of Bicolor toadfish - Opsanus dichrostomus

Bicolor toadfish (Opsanus dichrostomus) fish species information

Scientific Name
Opsanus dichrostomus

Common Name
Bicolor toadfish

Biology
Dorsal spines (total): 3; Dorsal soft rays (total): 23-26; Anal soft rays: 20 - 22; Vertebrae: 32 - 35. Narrow interorbital distance (29-65 thousandths of SL), usually less than the diameter of the orbit (60-104 thousandths of SL), versus usually equal to or wider than the orbit diameter in other Opsanus species. Similar to O. phobetron, both usually have the posterior part of lower half of the mouth darkly pigmented in specimens over 7 cm SL. Upper lateral-line papillae 26, lower 23. Pectoral fin glands 12, starting between uppermost 2 pectoral fin-rays (Ref. 41041).

Classification

Classified By

Collette, 2001

Class

Ray-finned fishes (Actinopterygii)

Order

Toadfishes (Batrachoidiformes)

Family

Toadfishes (Batrachoididae)

Distribution

Region

Western Atlantic

Distribution

Western Atlantic: Western Caribbean Sea and southern Gulf of Mexico.

Range

Unknown

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

1 m

Depth To - meters

5 m

Zone

demersal

Environment

Marine; demersal; depth range 1 - 5 m (Ref. 41041)

Trophic Level

3.52 s.e. 0.58 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

12.6 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5156 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low to moderate vulnerability (32 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated