Endangered
Bigmouth Silverside
Chirostoma sphyraena
The Bigmouth Silverside (Lake Chapala whitefish) is a fish of Mexican origin.
Appearance
The Bigmouth Silverside (Lake Chapala whitefish) is a fish of Mexican origin.
Range and habitat
Bigmouth Silverside is recorded from Mexico.
GBIF currently lists 104 occurrence points. Those points follow where people logged the taxon — museum drawers and surveys included — not a closed range boundary.
Pins are Wikidata “endemic to” fields. Orange dots, when present, are GBIF occurrence tiles — survey bias included.
Breeding
The white fish is an oviparous fish that spawns during the months of March, April and May. White fish spawn when they are 20 to 30 cm long.
The love game begins on bright mornings when three or four males chase the female close to spawning. This egg is very resistant to mechanical traction. It can be kept alive out of water for hours, just by providing a humid atmosphere.
In crisis
Bigmouth Silverside is Endangered on this catalog because that is the IUCN category stored on Wikidata. Confirm the official criteria and any later count on iucnredlist.org.
Sources
Written for this catalog from the Spanish Wikipedia article on Chirostoma sphyraena, translated and retold in English, plus Wikidata item Q5514594 and GBIF occurrence geography. Family and order context is original field-guide writing about the group. Wikipedia text is CC BY-SA. Not an IUCN assessment. Confirm status and range on iucnredlist.org.
