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Kryptolebias marmoratus (Poey, 1880)

Mangrove rivulus
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Kryptolebias marmoratus
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Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Cyprinodontiformes (Rivulines, killifishes and live bearers) > Rivulidae (Rivulines) > Kryptolebiatinae
Etymology: More on author: Poey.

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

; süßwasser; brackwasser benthopelagisch; pH range: ? - 7.5; dH range: ? - 16; standorttreu; tiefenbereich 0 - ? m (Ref. 55170). Tropical; 18°C - 24°C (Ref. 2060); 31°N - 3°N, 93°W - 49°W (Ref. 55170)

Verbreitung Länder | FAO Gebiete | Ecosystems | Vorkommen | Point map | Einführungen | Faunafri

North, Central and South America: eastern coasts of Florida (Indian River to Key West) in USA and Bahamas to Cuba, Jamaica, Cayman Island, Brazil, French Guiana, the Netherlands Antilles, Venezuela, Belize, Mexico, Puerto Rico. Throughout Caribbean (Ref. 26938).

Length at first maturity / Size / Gewicht / Alter

Maturity: Lm 17.0  range ? - ? cm
Max length : 7.5 cm TL Männchen/unbestimmt; (Ref. 27139)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Dark spot surrounded by yellow ring on side of caudal peduncle, just ahead of upper part of caudal fin base (Ref. 26938).

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Facultative air-breathing (Ref. 126274); Adults inhabit shallow, mud-bottomed ditches, bays, salt marshes and other brackish-water environments; also crab burrows (Ref. 5723), moist leaf litter, decaying mangrove logs (Ref. 93034). Can withstand heavy pollution of fresh or salty waters and shares its biotope with Poecilia vivipara which is much more abundant (Ref. 35237). Usually found in water with low oxygen content (Ref. 7251). Either male or hermaphroditic, females don't seem to exist. Only about 5% of a population are born as males; after 3-4 years about 60% of the (self-fertilizing) hermaphrodites transform into secondary males by losing female structure and function. The proportion of males depends on the environmental temperature. Below 20°C, majority are males, above 25°C all are hermaphrodites (Ref. 35237). It is the only known naturally occurring, self-fertilizing vertebrate (Ref. 13056, 35237). Not a seasonal killifish. Is very difficult to maintain in aquarium (Ref. 27139).

Life cycle and mating behavior Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven

Eggs are sometimes fertilized internally by accident via close apposition of gonopores in otherwise oviparous fishes (Ref. 7471). Regarded as a self-fertilizing hermaphrodite (Ref. 6028, 245, 35237). Eggs are 1.6 mm in diameter. Sexes can be distinguished after 8 weeks (Ref. 35237). Also Ref. 103751.

Hauptreferenz Upload your references | Referenzen | Koordinator : Costa, Wilson J.E.M. | Partner

Costa, W.J.E.M., 2003. Rivulidae (South American Annual Fishes). p. 526-548. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil. (Ref. 36579)

IUCN Rote Liste Status (Ref. 130435)

  nicht bedroht (LC) ; Date assessed: 01 October 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: kommerziell; Aquarium: Kommerziell; Köder:
FAO - Publication: search | FishSource |

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Trophic ecology
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Ecology
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Length-weight rel.
Length-length rel.
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Internet Quellen

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | FishWatcher Einträge suchen | CISTI | Catalog of Fishes: Gattung, Arten | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: Genom, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Nationale Datenbanken | Otolith Atlas of Taiwan Fishes | Öffentliche Aquarien | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Gehe zu, Suchen | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5039   [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).
Trophic level (Ref. 69278):  3.2   ±0.48 se; based on food items.
Widerstandsfähigkeit (Ref. 120179):  hoch, Verdopplung der Population dauert weniger als 15 Monate. (tm=0.5).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).
Preiskategorie (Ref. 80766):   Unknown.