Feeder Guppies: A Study

The purpose of this Betta fish lab was to analyze the behaviors of a male Betta fish when placed in the same bowl as another male and a female, both separate. The reactions and submissiveness/aggressiveness was observed and recorded. For several minutes the two fish were in the same bowl but unable to have contact and observations were recorded. Then, the two fish were allowed to have contact and observations were, again, recorded.

Second, they formed a tight line stage reducing their interpair spacing, and began to undulate their swimming path up and down. During the third stage, spinner dolphins formed a circle surrounding the preys after prey densities increased as to avoid dolphins. Last stage, each pair of dolphins had the opportunity actively fed on the prey for about 10s inside the circle before taking the positions of other pairs. In this study, two response variables can be found which were the whistles rates and echolocation click rates. Both of these response variables were dependent on the foraging patterns as different foraging patterns produced different rates and sound. Besides that, the whistle rates and echolocation rates can also affected by water depth because sound can only detected within scattering layer in this

- To test this hypothesis my experimental approach would be testing different bodies of water or testing one and just testing different areas while tracking the fish.

For both treatments, the number of Daphnia consumed during the 0-5minute interval is more than the amount of Daphnia consumed in the last 25-30 minute interval (Figure 1). The null hypothesis expects Guppy (Poecilia reticulate) to feed equally in the absence and in the presence of the plastic aquatic plant, therefore any deviance between the means of the two treatments is due to chance; the null hypothesis is rejected, the mean total number of Daphnia consumed in the presence of the plant (4.2) is significantly different from the mean total number of Daphnia consumed in the absence of the plant (14.2) (Two-sample t-test, t=3.28, df=8,

Being loose-school natured fish, the Guppies need to be on the go constantly with good tank breeding potential even as they eat their young, they still manage to reproduce easily enough in community living.

This experiment was conducted by visiting Hennington Pond at the Modesto Maidique Campus (MMC) at Florida International University (FIU). Due to their rapid life cycles and rapid growth, Gambusia Holbrooki (Mosquitofish) is an optimal fish to be able to study under any condition. But because during this experiment we will be focusing on vertical life tables, the perk of using the mosquitofish is that they are highly abundant. This research that was conducted, further proved that the optimum age for the mosquitofish to reproduce is at the age of 90

I will analyze the data by looking for a trend in the amount of fish caught in the morning vs at noon.

As part of the sensor industry, The Flopping Fish Inc. is a technology based company that creates sensors for other businesses that can be utilized and in corporate in cameras, biometric devices, and labs. Our products allow us to enter into multiple and diverse arenas such as: genetics, power generation, and satellites.

Isopods need water for them to stay alive. Other animals that they can be put in a category with are: crabs, lobsters, shrimp, crayfish, etc., they all use their gills to breathe. They were given the name “pill bug” because they are able to roll up in a tight ball when they feel threatened and it makes them look like a pill. They can be found in many places, these places are under rocks, logs, leaves, and moist areas. In this project he or she will be experimenting the type of environment an isopod likes more. The study of an animal’s behavior is called Ethology. An animal’s behavior is how they act when they are either alone or with other animals. When an animal reacts to an external stimulus is called Taxis. An animal can either move away or towards the thing that caused them to react. In this lab animal behavior will be experimented and observed, by isolating them in a controlled

Biologists and engineers eventually were able to follow fish using acoustic tags. These tags created sound waves that could be detected by underwater microphones attached to boats. The tags measured how the fish moved through it's environment.

This lab was conducted with the purpose of confirming the trait of homeostasis among goldfish. During the experiment, it was recorded that the fish would increase gill movement when placed in colder water two out of the three trials. However, the results showed no significant difference in gill movement in various temperatures of water. This has very little effect on the broad field of science since our only three trials were performed and may have included human error in the trials.

Many breeds of fish are being captured at a faster rate than they can reproduce. Some species such as orange roughy fishing became popular in New Zealand in the 1970’s. Over time, it spread to many countries around the world. In the last 20 years, there has been a decline in catch up to 75%. It is no longer common to see in grocery stores as well as restaurants. The amounts of fish that are captured and distributed around the world are alarming opposed to the rate the fish can multiply.

A collection of five samples was made at this site (Table 1). The first sample collection captured 12 Ringed Crayfish with 0 recaptures and 0 that were previously marked. The second sample collection captured 7 Ringed Crayfish with 0 recaptures and 12 previously marked. The third sample collection captured 13 Ringed Crayfish with 0 recaptures and 19 previously marked. The fourth sample collection captured 4 Ringed Crayfish with 1 recapture and 32 previously marked. The fifth sample collection captured 11 Ringed Crayfish with 1 recapture and 35 previously marked. The total number of Ringed Crayfish caught is 47 crayfish with a population estimation (N) of approximately 422 crayfish where N=Σ (CixMi)/ Σ Ri. The total confidence interval of the estimated population (95%CI) is a range from 354.1 to 521.9 for the mark-recapture

These sounds usually vary from 4 to 15 kHz and may have a social function, such as individual identification (Caldwell et al., 1990; Janik, 2013). Often last less than one second, and can go from one to multiple loop repetition (Figure 1:3), having highly variable frequency modulation contour shapes, from concave to convex, upsweep to downsweep, and with intermediary forms between categories (Bazúa-Durán & Au 2002; Dudzinski et al., 2009). Whistles have different features that can vary depending on the context. For example, in isolation it has been reported that dolphins tend to modify whistle time-frequency parameters, number of loops and emission rate compared with normal situations (Caldwell et al. 1990; Weary and Fraser 1995; Watts and Stookey 2001; Barton, 2006; Esch et al., 2009a; Esch et al.,

The Purpose of this lab is to determine if predation or sexual selection have a greater effect on the population of guppies with a specific coloration. The lab will began with mostly bright guppies. Thus, if there are more predators than only the drabbest coloration guppies population would survive.