Archive for the Goby category

Goby Fish aka Microgobius Gulosus Fish aka

microgobius_gulosus1.jpg

Source: From Wikipedia, the free encyclopedia

The gobies form the family Gobiidae, which is one of the largest families of fish, with more than 2,000 species in more than 200 genera.[1] Most are relatively small, typically less than 10 cm (4 in) in length. Gobies include some of the smallest vertebrates in the world, like species of the genera Trimmaton and Pandaka, which are under 1 cm (3/8 in) long when fully grown. There are some large gobies, such as some species of the genera Gobioides or Periophthalmodon, that can reach over 30 cm (1 ft) in length, but that is exceptional. Although few are important as food for humans, they are of great significance as prey species for commercially important fish like cod, haddock, sea bass, and flatfish. Several gobies are also of interest as aquarium fish, such as the bumblebee gobies of the genus Brachygobius.

The most distinctive aspect of goby morphology are the fused pelvic fins that form a disc-shaped sucker. This sucker is functionally analogous to the dorsal fin sucker possessed by the remoras or the pelvic fin sucker of the lumpsuckers, but is anatomically distinct: these similarities are the product of convergent evolution. Gobies can often be seen using the sucker to adhere to rocks and corals, and in aquaria they will happily stick to glass walls of the tank as well.

Gobies are primarily fish of shallow marine habitats including tide pools, coral reefs, and seagrass meadows; they are also very numerous in brackish water and estuarine habitats including the lower reaches of rivers, mangrove swamps, and salt marshes. A small number of gobies (unknown exactly, but in the low hundreds) are also fully adapted to freshwater environments. These include the Asian river gobies (Rhinogobius spp.), the Australian desert goby (Chlamydogobius eremius), and the European freshwater goby Padogobius bonelli.

What Are Bottom Water Tropical Fish?

What Are Bottom Water Tropical Fish?

By Nate Jamieson

Bottom water fish are those that prefer living at the lowest level of the aquarium. It’s not that they can’t swim into the upper regions, they will when spurred by a fish that pesters them, or just for the sake of a quick dash around the tank. But for the most part, they live on the bottom, which is where most of their food comes from.

Tropical fish that prefer the bottom of the tank, usually eat algae that grows there, as well as leftover food that falls on the substrate or the broad leaves of some plants. In a way, the bottom water fish are the housekeepers of your aquarium, cleaning up scraps and preventing the build up of algae. But this is not always a sufficient diet, and they need to be given food that comes in a form or shape specifically designed to reach, and appeal to the bottom feeder.

This is usually a wafer shape, dense enough that it sinks past the top and middle feeders, to rest on the bottom and soften. The bottom feeders can then browse at their leisure, returning later to clean up the remains. In that respect, they are not like top and middle feeders, where food is given a pinch at a time, and feeding should stop as soon as they lose interest. Those tropical fish that hang around the bottom tend to be “grazers”, and not the gulpers that you’ll find dashing for the surface when they see you coming.

Some of the better-known bottom water fish are the loach, and catfish. There are also algae eaters, Botia, Corys, Knifefish and the more unusual specimens like Goby and Needle Nose.

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Article Source: http://EzineArticles.com/



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