Lista rodzajów

Astatheros


Astatheros alfari
alfari

Astatheros altifrons
altifrons

Astatheros bussingi
bussingi

Astatheros calobrensis
calobrensis

Astatheros diquis
diquis

Astatheros longimanus
longimanus

Astatheros macracanthus
macracanthus

Astatheros margaritifer
margaritifer

Astatheros nourissati
nourissati

Astatheros rhytisma
rhytisma

Astatheros robertsoni
robertsoni

Astatheros rostratus
rostratus

Cichlid Room Companion

Podrodzina
Cichlinae

Plemię
Heroini

Rodzaj
Astatheros

Status
nieokreślony


Ostatnia aktualizacja :
10-sty-2012

Illustration Illustration of Astatheros margaritifer Günther, 1862 as appeared in the Catalogue of Fishes in the British Museum.Zdjęcie wykonał anonymous . Wysłane przez Juan Miguel Artigas Azas.

Astatheros margaritifer (Günther, 1862)


Oryginalny opis jako Heros margaritifer:

Historia taksonomiczna:

Grupy:

Etymologia: margarita + ferre = I bear pearls.

Typy: Known from one 20 centimeter (8 inches) preserved specimen in the British Museum of Natural History.

Cechy charakterystyczne: Most closely related to the Amphilophus species group.

Rozmiar: Up to 8 inches.

Dymorfizm płci: Males may have spots on the unpaired fins, while females are clear..

Lokalizacja typu: Lago Petén, Guatemala.

Występowanie: Most likely the Rio Maria Linda drainage, including the former lakes under the Guatemala City and Lago Amatitlan, and other smaller coastal drainages to the east of Iztapa. May be present in Laguna de Calderas near Santa Elena de Barillas. Possibly introduced to the higher elevation lakes as early as the 1500s by Spanish priests..

Zamieszkiwane kraje: Gwatemala (endemic).

Siedlisko: Lakes and coastal rivers. Lago Amatitlan is severely polluted, and the Rio Maria Linda receives untreated effluent from Guatemala City and Escuintla. .

Lokalizacje: Lake Petén-Itza (Gwatemala, native).

Pokarm: Data not available but closely related to A. macracanthus..

Rozmnażanie: Unknown.

Ochrona: Astatheros margaritifer jest wpisany prez Międzynarodową Unię Ochrony Przyrody do Czerwonej Księgi Gatunków Zagrożonych IUCN jako (EN) Zagrożony (2009). Lago Amatitlan, where one specimenwas captured, is undergoing severe eutrification, and could fill with sediment within 100 years. Coastal rivers run through areas with ranches and agriculture..

Komentarze: Long one of the great mysteries of Central American cichlids, the capture in 2011 of a single specimen in Lago Amatitlan raised as many questions as it answered. May have been common in the area around Guatemala City in the 1860s when Godman and Salvin visited. Those lakes have disappeared. However, regular volcanic eruptions likely caused loss of aquatic life in the area, leading the Spanish to stock Amatitlan and Atitlan with fish. Rosen and Bailey report capturing them with A. macracanthus, A. trimaculatus, and A. nigrofasciatus in coastal rivers. It is suspected that is how cichlids came to be found at such high elevations..

Literatura: