Forbesichthys agassizii (Putnam, 1872)

Spring cavefish

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Percopsiformes \| Amblyopsidae
Synonyms	Chologaster agassizii, Chologaster papilliferus, ... more
Common names	Kildeblindfisk, 阿氏亮鮰, 阿氏穴跳鮰, ... more

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Image of Forbesichthys agassizii (Spring cavefish)

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Main reference

Etnier, D.A. and W.C. Starnes. 1993. (Ref. 10294)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 9.0 cm TL male/unsexed; (Ref. 10294); common length : 5.3 cm TL male/unsexed; (Ref. 12193); max. reported age: 3 years (Ref. 10294)

Environment

Demersal; freshwater

Climate / Range

Temperate; 39°N - 35°N

North America: portions of Tennessee, Kentucky, Illinois and Missouri, U.S.A.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal soft rays (total): 9 - 11; Anal soft rays: 9 - 11; Vertebrae: 33 - 35. Scales minute and embedded. Pelvic fins absent. Branched caudal fin rays 11-17; branchiostegal rays 6. Triads of sensory papillae occur midlaterally and scattered clusters of neuromasts are present on the head. Coloration uniform dark gray to back with paler venter.

Occurs in springs and caves (but almost always near surface). Lives underground but emerges above ground in springs (Ref. 5723). Active in springs at night and usually retreats underground during the day. The few individuals which venture into the spring portions of their habitat may show strong rheotaxis for half to one-minute periods but usually show strong thigmotaxis and hide under rocks or debris (Ref. 34868). Feeds at night on amphipods, midge larvae, tiny worms and micro-crustaceans. Fecundity averages about 100 eggs per female (Ref. 10294).


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

High, minimum population doubling time less than 15 months (K=0.67; tm=1; tmax=3)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (21 of 100)	Not marketed/unknown

Entered by Froese, Rainer

Modified by Torres, Armi G.

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Page last modified by : elaxamana, 15 July 2009

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