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Gobiomorus dormitor  Lacepède, 1800

Bigmouth sleeper
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Image of Gobiomorus dormitor (Bigmouth sleeper)
Gobiomorus dormitor
Picture by Artigas Azas, J.M.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Eleotridae (Sleepers) > Eleotrinae
Etymology: Gobiomorus: Latin, gobius = gudgeon + Greek, moros = silly, stupid (Ref. 45335).   More on author: Lacepède.

Environment / Climate / Range Ecology

Marine; freshwater; brackish; demersal; amphidromous (Ref. 46888).   Tropical; 22°C - 29°C (Ref. 36880); 27°N - 4°N

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Central Atlantic: Southern Florida and southern Texas in USA to eastern Brazil. Eastern Central Atlantic: Macias Nguema (Fernando Po).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 90.0 cm TL male/unsexed; (Ref. 11344); common length : 36.0 cm TL male/unsexed; (Ref. 12193); max. published weight: 7.5 kg (Ref. 11344)

Short description Morphology | Morphometrics

Dorsal spines (total): 7; Dorsal soft rays (total): 9; Anal spines: 1; Anal soft rays: 9

Biology     Glossary (e.g. epibenthic)

Adults occur in fresh water, often well inland. Inhabits larger free flowing clear water streams (Ref. 11225). They lie mostly on the bottom in slower moving part of streams, sometimes on logs or large stones and on leaf debris or gravel (Ref. 11225). A carnivorous and benthic fish that relies on its sluggish behavior and cryptic coloration (Ref. 36880). Feeds on all greater invertebrates and regularly also fish (Ref. 92840).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(fisheries: production; publication : search) | FishSource |

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 26.4 - 28.3, mean 27.5 (based on 395 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Trophic Level (Ref. 69278):  3.6   ±0.1 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  High vulnerability (62 of 100) .