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Hogchokers are sometimes offered for sale in aquarium stores, often marketed as "freshwater flounder" or "freshwater fluke". This is not entirely accurate, however. While some species of full freshwater flatfish exist from Southeast Asia and South America, the hogchoker is thought to be a species of coastal estuaries and mud flats.
Livebearers are fish that retain their eggs inside the body and give birth to live, free-swimming young. They are especially prized by aquarium owners. They are especially prized by aquarium owners. Among aquarium fish, livebearers are nearly all members of the family Poeciliidae and include: guppies , mollies , platies and swordtails .
A bluefin notho killifish, Nothobranchius rachovii, from East Africa A killifish is any of various oviparous (egg-laying) cyprinodontiform fish, [1] including families Aplocheilidae, Cyprinodontidae, Fundulidae, Nothobranchiidae, Profundulidae, Aphaniidae and Valenciidae.
Sea-Monkeys is a marketing term for brine shrimp (Artemia) sold as novelty aquarium pets. Developed in the United States in 1957 [1] by Harold von Braunhut, they are sold as eggs intended to be added to water, and most often come bundled in a kit of three pouches and instructions. Sometimes a small tank and additional pouches are included.
Adult fish also prey on fish eggs and larvae. For example, haddock were observed satiating themselves with herring eggs back in 1922. [14] Another study found cod in a herring spawning area with 20,000 herring eggs in their stomachs, and concluded that they could prey on half of the total egg production. [17] Fish also cannibalise their own eggs.
The eggs are pale yellow, about 2 mm (0.08 in) in diameter, and strongly adhesive. During a spawning event, a female can deposit up to 740 eggs in separate clutches of 10 to 300 eggs at a time. [13] The eggs adhere to plants, algal mats, empty mussel shells, sand, or mud at sites that are reached by water only at high spring tides. [13]
The fish have been found in Nebraska since the early part of the nineteen hundreds. River drainages that sustain brook stickleback populations are the Loup, Middle Platt, Niobrara, and smaller distributions in the Lower Platte, Missouri River tributaries, North Platte, and South Platte.
Cabezon feed on crustaceans, mollusks, fish and fish eggs. There is evidence to support that juveniles and adult Cabezons feed on specific species within that age range. Only the adults show a clear seasonal change in diet. In this group, the percentage of mollusks and fish is higher in winter, and spring compared to summer and fall.