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The silver dollar is a peaceful schooling species [1] that spends most of its time in the mid- to upper-level of the water. Its average lifespan is less than ten years but can live longer in captivity. A benthic spawner and egg scatterer, the adult fish will spawn around 2,000 eggs. This breeding occurs in soft, warm water in low light.
Metynnis argenteus is a species of serrasalmid fish endemic to the Tapajós River Basin in Brazil.It is one of the species known in the aquarium trade as the "silver dollar". M. argenteus is generally considered the archetypal silver dollar, although it and the very similar M. hypsauchen frequently have been confused.
Fish diseases and parasites. This gizzard shad has VHS, a deadly infectious disease which causes bleeding. It affects over 50 species of freshwater and marine fish in the northern hemisphere. [1] This flatfish Limanda limanda has an outgrowth called a xenoma. It is caused by a microsporidian fungal parasite in its intestines.
Ciguatera fish poisoning (CFP), also known as ciguatera, is a foodborne illness caused by eating reef fish contaminated with ciguatoxins. [4][2] Such individual fish are said to be ciguatoxic. Symptoms may include diarrhea, vomiting, numbness, itchiness, sensitivity to hot and cold, dizziness, and weakness. [1][2] The onset of symptoms varies ...
The fish spotted by oceangoers on August 10 was 12 feet long, according to the institution. The fish had already died at the time of the discovery, and was found near the shores of La Jolla Cove.
As the number of dead endangered smalltooth sawfish found in the Florida Keys since the end of January creeps up on 40, biologists made progress last week in their struggle to solve the mystery ...
The redhook myleus, Myloplus rubripinnis, is a medium to large omnivorous fish of the family Serrasalmidae from South America, where found in the Amazon and Orinoco basins, as well as rivers of the Guiana Shield. It is peaceful and schools often, and can grow to a length of 39 cm (15 in). They are also called the redhook silver dollar and are ...
Metynnis is a genus of serrasalmid fish from tropical and subtropical South America. [1] They are herbivorous or omnivorous, and inhabit a wide range of freshwater habitats, ranging from rivers and streams (both fast- and slow-flowing), to floodplains, flooded forests, lakes, pools and reservoirs. [2] They generally reach 8–15 cm (3–6 in ...