Guppy

Color Variation in Venezuelan Guppies Guppies are one of the most diverse fish in the world. Some guppies are brightly colored and some guppies are drab and dull in color. The color variation within Venezuelan guppies interested scientists to find out how color variation within the guppies occur. So what causes the color variation within the Venezuelan guppies? The three factors that causes color variation within the guppies are the predatory fish residing in the pools, the amount of turbidity of the water in the pools, and the selection of mates. The amount of turbidity within the pools are one of the three factors that causes color variation within the guppies. Turbidity is the cloudiness or haziness of a fluid which is caused by a large amount of particles that are usually invisible to the naked eye. The more turbidity a pool has than the cloudier and hazier the water is. Amount of Turbidity within the pool’s waters Type Pool 1 Pool 2 Pool 3 Pool 4 Amount of Turbidity (NTU) 27.5 - 36.25 8.75 - 27.5 3.75 - 8.75 3.75 - 8.75 Bright Males 6 50 76 108 Drab Males 56 96 101 118…

Background: The bottle ecosystem created contains three compartments. It includes an aquatic habitat at the bottom, a filter in the center, and a terrestrial habitat at the top. The aquatic habitat included guppies, shrimp, a snail, and elodea. The filter was composed of a layer of fine sand, coarse sand, activated carbon, and gravel. The terrestrial habitat in our bottle ecosystem featured mealworms, a mealworm beetle, annual bluegrass, and purslane. In the aquatic habitat, the aquatic plant…

reported that male guppies in high predator areas tend to have patterns that resemble their environment so they don’t stand out. Guppies with low or no predation, tend to not blend in and are brighter with more and larger spots (Endler, 1978). Endler thought that this could be happening because color patterns are molded by natural selection and sexual selection. Although brighter males are often preferred by the females, they are also more likely to be eaten. In areas with high predation,…

John Endler conducted two studies documenting the relationship between guppy coloration patterns in correlation to predation and sexual selection. Endler (1980) references his previous field study (Endler, 1978) in regards to coloration patterns present in the presence and absence of different predators. The relationship that was found there (Endler, 1978) was that in areas of high predation, coloring was less conspicuous and more closely blended to their background, whereas in areas of low…

Libestes Reticulata is a fish commonly known as a Guppy. Guppies belong to the livebearer group meaning they give birth to free swimming fry instead of laying eggs. The Guppy originates from fresh and brackish waters in South and Central America, but can be found today in other parts of the world. Guppies have been deliberately set free in several Asian waters in an attempt to eliminate malaria by decreasing the number of mosquitoes. Guppies come in various shapes as well as colors. A few types…

It was a dark and rainy school night, however the school day had gone well. As I walk into Guppy’s house, I noticed that Guppy (My grandma) looked low-spirited, down in the dumps, sick at the heart, stop me when you hear a good one. So I do as any kind person would do, I ask, “Guppy, what’s wrong?” “Well Alli, I don't know how to tell you this but… but, Spud (my cat) got put down he… he had something wrong with his leg, and he was old and we wanted to put him out of his misery.” And of…

Most male animals are more attractive than their female counterparts. This is because the male takes the lead in mating and he is the one who attracts. A lot of male guppies are bright colored. The females tend to be less attractive because they’re submissive when mating. They are attracted to the male guppies because they prefer bright colors, but why? The vast majority of female fish prefer orange colors. We think it’s because of food. In a guppy’s habitat, orange fruit seems to be a favorite…

The purpose of this experiment is to determine what causes the trends in the coloration in guppies. The data indicates that the trends in the coloration of the guppies is caused by the number of predators, the placement of the pool, the turbidity level, and that the coloration of guppies is sex-linked. The data shows that there are 5 brightly colored male guppies and 41 drab males in pool one, which is the closest to the main stream. Then in pool four, which is on the top of a waterfall, there…

Biologists have done many studies concerning guppies. Guppies are one of the world's most widely distributed tropical fishes, and one of the most popular freshwater fish species. These fishes tend to live in tropical lakes and rivers. In addition, Guppies have a wide color variation. This led Biologists to wonder what was caused the wide coloration of Guppies. Biologists collected data about different types of guppies and where they lived. After observing and collecting data about the guppies,…

Ronald, Ryan, Thomas, and William are sitting on the couch watching “ Bubble Guppies.” Thomas asked “ Who is riding The Point of No Return.” Everyone except for Ryan say “YES” Then William asked “Ryan?” Ryan then said “Maybe.” “Well you better think about it” said Ronald. Then they went to the car. “So Ryan how do you feel?” asked William. Ryan said back “ Not too well we got a five hour drive ahead of us. Then everyone laughed “ That was a gnarly joke Ryan” said Thomas. Ryan said “That wasn’t a…