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Teleostei (teleosts) > Centrarchiformes (Basses) > Elassomatidae (Pygmy sunfishes)
Etymology: Elassoma: Greek, elasson = smaller + Greek, soma = body (Ref. 45335).

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

Freshwater; benthopelagic. Subtropical

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

North America: endemic to Moss Spring and (historically) adjacent springs in the middle Tennessee River drainage in Alabama, U.S.A.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 1 - 3; Dorsal soft rays (total): 8 - 13; Anal spines: 1 - 3; Anal soft rays: 5 - 8. Transverse scale rows: 10-13. Distinguished from all other family members by having 3 or less dorsal spines (versus 7 or more), 6-7 broad dark bars along flanks (versus 7 or more), 16-18 peduncle scale rows (versus 18-24).

Found on sand, clay, mud and/or limestone substrate commonly associated with rooted, submerged vegetation (Ref. 58011). Oviparous, eggs are deposited in aquatic vegetation, preferably on strands of Ceratophyllum sp. when available (Ref. 58020).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Eggs are deposited in aquatic vegetation, preferably on strands of Ceratophyllum sp. when available (Ref. 58020).

Main reference Upload your references | References | Coordinator | Collaborators

Gilbert, C.R., 2004. Family Elassomatidae Jordan 1877. Pygmy sunfishes. Calif. Acad. Sci. Annotated Checklists of Fishes (33):5. (Ref. 51664)

IUCN Red List Status (Ref. 130435)

Critically Endangered (CR) (B1ab(i,ii,iii,iv)+2ab(i,ii,iii,iv)); Date assessed: 28 November 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5156 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.4 ±0.4 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Low, minimum population doubling time 4.5 - 14 years (tmax=1; Fec=65).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Elassoma alabamae Mayden, 1993