Cichlid

Desjardins and Fernald (2010) wanted to discover whether fighting an opponent is similar to fighting a mirror image. These male fish are territorial and tend to engage in fighting when they encounter another size-matched male. Thus, Desjardins and Fernald (2010) measured differences in behavioral, hormonal and brain activity between the different conditions. They also measure the immediate early genes such as the egr-1 and c-fos in four brain regions: dorsomedial telencephalon (amygdala),…

the fish to find its way along riverbed basins at night or in murky water. Red-tails are generally considered compatible in community tanks. Interspecies conflicts are rare. But a more robust fish such as barbs, larger tetras, and the less timid cichlids, are…

According to National Geographic The Nile Perch was inserted into an ecosystem where it had no natural predator, and this allowed the Nile Perch population to exponentially grow. Within 50 years after the introduction, the Nile Perch knocked out 90% of cichlids, a native species in Lake Victoria. Not only that but the University of Columbia’s research states that by the 1980’s the Nile Perch made about 300 species go extinct with even more species being wiped out in recent developments. This…

A goldfish in a bowl of cichlids would be looked down upon by the cichlids simply because it is identified as different. Fahrenheit 451 written by Ray Bradbury explains that story of Guy Montag, a firefighter, who sets fire to books instead of extinguishing them. After doing the job for quite some time, curiosity takes over as he begins to wonder just the exact reason why the books need to be destroyed. His interest takes him on a wild journey he would’ve never imagined. The similarities between…

How many of you go to the fish section when entering a pet shop? I do! Watching fish swim and thrive in their environment is strange but beautiful and a little enticing. A few years ago my parents provided with my a thirty gallon fish tank for Christmas and the rest of the family gave me gift cards so I could buy the items I wanted, and I’m going to explain in three steps how to set up an aquarium and maintain it. First decision to make is where are you going to place your tank? Will you put it…

into the same categories: coldwater and tropical. Coldwater fish include livestock such as goldfish, some species of tetra, various minnows, and so on. Tropical fish, on the other hand, include many vibrant fish, including but not limited to bettas, cichlids, and a wide variety of invertebrates. Saltwater fish are primarily those that can be found in the ocean, such as clownfish, blue tangs, and various types of shrimp. From an aesthetic standpoint, saltwater fish are often bolder and attract…

The Effects of Phenotypes on Predatory Selection Pressure Faith Farmer BIOL 107-512 10/15/15 Introduction The purpose of this experiment is to evaluate how different phenotypes influence predation patterns in Dottus variegatus. In nature, observations of animals such as insects and predatory birds indicate that predators select against organisms with phenotypes that do not blend in with their environment. In this lab, dots and their colors represent the species Dottus variegatus and the…

If I were to ask you an estimate of how much seafood you have consumed this year, what would your answer be? In the U.S. alone we consume about 5 billion pounds of seafood in just one year! Over the past ten years, one fish has grown to become one of the most consumed seafood in America, and that fish is Tilapia. Commonly referred to as the “aquatic chicken”, Tilapia is attractive to fish producers and consumers, because it is easy to breed and lacks the strong “fishy” taste many people…

An ecosystem is complex set of relationships among the living resources, habitats, and residents of an area. It is a biological community that incorporates human, animals, plants, soil, water, rocks, and microorganisms living together in a environment. Ecosystem includes both biotic and abiotic factors. Biotic factors include all of the living things such as plants, animals, bacteria, fungi and humans living in an area. The interactions between them such as competition, predation, mutualism and…