Cray Fish Lab Report

Another good reason to setup a biotope aquarium is to see the fish interacting in their “natural” environment which is completely different from what you will see in a community setup. In my opinion, there are several types of biotopes. 1. The true Biotope is a recreation of a specific

Pond Ecosystem Investigation Lab report By: Harshal Buradkar 9 grade Introduction A pond ecosystem consists of abiotic: light intensity of the water, depth of the water, and biotic: fish, plants, bacteria, algae, insects and etc. It also contains water and plants which is the most important part of the pond. Ponds are mostly shallow with the depth of 12-15 feet in which the sun rays can touch the bottom of the pond so that plants can grow.

Bony fish have gills as part of their gas exchange system. They inhabit water. The amount of available oxygen in water in comparison to air is significantly less. This means that fish must be adapted to extracting oxygen from their environment more efficiently than that of other organisms. As a result of this they have a blood association system.

They have well-developed and symmetrical gills over which drawn water flows. The flow of water carries the waste and reproductive products. Movement: Although abalones occur in the same place, they may use their muscular foot with its suction power to move, cling and stay tight with the substrate surfaces.

Once you feel that you have a fish on the line, you can set the hook and bring in the fish. This method is a good way to make sure that overfishing does not happen. Overfishing is when a body of water gets fished so much that the fish population is almost extinct in that body of water. Overfishing happens a lot more often when people use different fishing methods like cast nets. Cast nets and trolling lines are where a fisherman places nets deep in the water, and they extend from ten to one hundred feet.

As water moves through the gills oxygen gas is picked up and taken in by the blood vessels. The water is moved upward, forward, and out of the crayfish through the mouth. With the current of the blood, the oxygen is taken towards the tail and up towards the heart. By the time the oxygen gas has reached the heart most of it has become poorly oxygenated. The heart continues pumping ad when passed by the green glands any material not needed is excreted.

Fish for Small Unheated Aquariums and Goldfish Bowls Filed under: Aquarium Fish Tanks andFish Tank Design andFreshwater Tropical Fish Certain fishes are often kept in bowls or small plastic aquariums that lack heating and filtration equipment. The fish most often kept in this way include goldfish, bettas, white cloud mountain minnows, and danios. Each of these fishes have different pros and cons when it comes to keeping them in this fashion.

Many organisms get past these challenges by the use of a spectacular adaptation called bioluminescence,

CHAPTER 2 LITERATURE REVIEW 2.1. The larval fish stages Fish larvae are part of the fauna that eat smaller organisms. According to Leis and Ewart, (2000) they characterize larval stage to end with the fulfillment of full outside quantitative feature characters, the entry of any mobile structure. For the larval stage according to Termvidchakorn and Hortle, (2013) the larval stage can be divided into three which are yolk sac stage, pre-larval stage and post larval stage; whereas according to Leis and Ewart, (2000) the larval stage is divided into segment that outlined by formation of the caudal fin and flexion on the notochord. Ahlstrom and Ball, (1954) stated that the terminologies of the development stage of larval fish divided into yolk

Arthropods have mouthparts adapted for piercing vegetation and sucking out plant juices, whereas Molluscs possess a radula that consists of rows of teeth that enables the animal to scrape algae from surfaces of rocks. Lastly, Arthropods and Molluscs both engage in filter-feeding, although not entirely similar. The bivalve molluscs filter-feed fine particles from the water, and similarly, barnacles from Arthropods also filter-feed with their legs. However, according to Bryant (n.d.), Molluscs such as clams and mussels are internal filter feeders because “they bring in water through one opening (the incurrent siphon), pump it through the filter to remove microscopic food particles, and discharge it through another opening (the excurrent siphon)”. In contrast, Arthropods like Barnacles are external filter feeders, in which no water is pumped through the filter.

They have long, slim bodies to enable them to swim at fast speeds. Makos live all around the world in central oceans. They have special adaptations they use to help them survive. Makos are currently being protected by U.S. waters. Mako sharks are quite amazing

The purpose of this study is to understand the feeding rate of Daphnia magna. D. magna is a species of Daphnia that belongs to the suborder Cladocera (Ebert, 2005). They live in freshwater and feed on small, suspended particles in the surrounding water. They are filter feeders. Leaf-like appendages, called phyllopods provide a filtering apparatus for the collection of food.

They create a well balanced ecosystem by being the prey of amphibians and small water insects and eating algae found in ponds and lakes. When there is not Daphnia present in lakes and ponds, an increase of algae and decrease of fish can be seen. Because of their sensitivity to the surroundings and its transparent carcass, when Daphnia are in hypoxic conditions, more hemoglobin is produced and they appear red. Hypoxic is when the body or part of the body is lacking adequate oxygen supply. This red color can be seen about

This corral should be positioned over a space of seabed with plenty of seagrass and between a depth of 0-50 meters. Depending on how deep the spot is where you put the net, it will also change the height of the net. I need to point out that this sort of ‘corral’ and raising of Hippocampus reidi did not have any information on the topic that has been officially recorded. This means that when I came up with this corral it was not based off of previous works. It was my original idea.

Both types love to live in open water where the temperature range from 70 to 80 degrees Fahrenheit. They also tend to stay away from land in deep open water but keep close to surface. Appearance Sailfish can appear as many colors ranging from a dark blue to a grey.