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Chologaster cornuta Agassiz, 1853

Swampfish
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Classification / Names Populärnamn | synonymer | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (strålfeniga fiskar) > Percopsiformes (Trout-perches, pirate perches and cavef) > Amblyopsidae (Cavefishes)
Etymology: Chologaster: Greek, cholos, -e, -on = trough, kneading trough + Greek, gaster = stomach (Ref. 45335).  More on author: Agassiz.

Environment: milieu / climate zone / depth range / distribution range Ekologi

; sötvatten bottenlevande.   Temperate; 38°N - 32°N

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

North America: Atlantic Coastal drainages from Virginia to Georgia, U.S.A.

Size / Vikt / Age

Maturity: Lm ?  range ? - ? cm
Max length : 6.8 cm TL hane/ej könsbestämd; (Ref. 5723); common length : 4.0 cm TL hane/ej könsbestämd; (Ref. 12193)

Short description Morfologi | Morfometri

Mjukstrålar i ryggfenan (totalt): 9-12; Mjukstrålar i analfenan: 9 - 10. Strongly bicolored; dark brown above, white to yellow below. Small eyes. No pelvic fins. 3 narrow black stripes on side; one on lower side wide at front, narrow at rear. 2 black streaks along back before dorsal fin separate to encircle dorsal fin; pink gills visible. Caudal fin clear near base, often black in center; dusky black band in dorsal fin. 0-2 rows of papillae on caudal fin. 9-11 branched caudal rays.

Biologi     Ordlista (t.ex. epibenthic)

Adults occur on vegetation and debris in swamps, sloughs and quiet pools and backwaters of streams. Found year-round in open streams which are small and well-shaded with temperatures never exceeding 23°C. In such streams, thigmotaxic tendency is shown by the difficulty in seining these individuals from the roots and debris of their preferred habitat along edges of submerged weed banks which border sand-bottomed channels. This habitat is rich in potential food for C. cornuta like amphipods, ostracods and copepods (Ref. 34868). Eggs are carried in gill chambers of females (Ref. 205).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Incubates eggs in gill chamber of females (Ref. 205).

Main reference Upload your references | referenser | Koordinator | Medarbetare

Page, L.M. and B.M. Burr, 1991. A field guide to freshwater fishes of North America north of Mexico. Houghton Mifflin Company, Boston. 432 p. (Ref. 5723)

IUCN Red List Status (Ref. 119314)

  Least Concern (LC) ; Date assessed: 03 November 2011

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

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Ytterligare information

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Internet-källor

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | SeaLifeBase | Tree of Life | Wikipedia(Go, sök) | World Records Freshwater Fishing | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 1.0088   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245).
Trofisk nivå (Ref. 69278):  3.3   ±0.47 se; Based on food items.
Resiliens (Ref. 69278):  Hög, lägsta populationsfördubblingstid mindre än 15 månader (K=1.03; Fec=98).
Vulnerability (Ref. 59153):  Low vulnerability (13 of 100) .