iv. Ara et al. (2014) collected fish larvae by using bongo nets with mesh size 500 µm, mouth diameter 0.3m and length 1.3m (Figure 2) in daylight. A flow meter (hydro-bios) was attached to the net in order to determine the volume of the water filtered. The bongo net, then towing 30 minute sub-surface from each station.
Brine Shrimp Lab Reflection After performing the Brine Shrimp Inquiry lab my group found that .5% salinity of 50 mL of water was the ideal salinity for hatching brine shrimp. To figure out what salinity was ideal we tested three different levels of salinity. The first thing we did when we began the lab was choose three different salinities to test. My group choose .5%, 3%, and 5%, next we choose the amount of water that would be in each dish; we decided on 50 mL of water. We then calculated the amount of salt to put in each dish.
The fish counter is composed of 16 tunnels, but to run the trials, we used a single PVC pipe to act as our test counter and wired it so we could use the single tube to test all 16 channels. The system has different levels of sensitivity which correlate to the size of the fish you want it to be able to sense. We placed the counter into a large tub and chased the fish around so it would swim through the test counter. We tried a range of channels, each with different sensitivity levels. We recorded each whether or not the counter actually counted the fish and then determined the percent accuracy for each level of sensitivity.
a. Count the number of dead brine shrimp instead of living brine shrimp b. Add more brine shrimp to the water with the highest salt concentration c. Repeat the experiment several times, and calculate the average number of brine shrimp d. Reduce the length of the experiment from 24 hours to 8 hours. 23. Where is the information stored in DNA?
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. Feeding habits: In nature, abalone eats marine algae with a particular preference to large brown algae such as giant kelp and other kelp species. While juvenile abalone grazes for algae, diatoms and bacterial films, adults rely on drift algae, and if food becomes scares, they move after their food.
The more I learn about marine life, the more I am dedicated to continuing in this field. Please elaborate on your cleaning experience here. As part of my job at PetSmart, I am responsible for cleaning both saltwater and freshwater tanks. This includes wiping the main and comet sumps in the morning, cleaning/changing prefilters/ filter socks in the main and comet systems, cleaning loc-lines and strainers to allow better output flow of water, and wiping down all aquarium outer surfaces, tops, and fronts. I am also responsible for removing deceased or diseased fish and plants, vacuuming the gravel, algae scrubbing, water changing, and decoration soaking and scrubbing with sodium thiosulfate.
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. My aim is to find out how the plant cover affect the biodiversity of animal life in the pond. Experimental question How does the plant cover affect the biodiversity of animal life in the pond?
ABSTRACT The ecosystem is an ecological system formed by the relationship reciprocity is inseparable between living things and their environment. Aquatic ecosystems lab course pooled aims to acknowledge and study of the characteristics of the aquatic ecosystem is pooled. This lab course held on Sunday, 29 August 2010 in Situ Gede region Quadrant II at station 6. Methods undertaken in this lab course is sampling (sampling methods) which includes interviews, field observation and data collection techniques with some parameters, as the nature of physics, chemistry, and biology, then conducted the analysis ofsamples in laboratory. The General characteristics of the physical parameters murky brown waters is the color, brightness ranges from 27-31 cm, depth ranging from 105-138 cm, type of substrate in the form of fine mud and temperatureon the third substations was 31 ºc.
A well known example of this is the infamous anglerfish (Lophiiformes). Anglerfish posess a modified dorsal fin, the illiceum, at the tip of which is a bulb, the esca, which contains symbiotic luminescent bacteria. This esca is used both as a light to guide the fish, but also to lure prey to the anglerfish’s mouth. (Munk, 1998). The Cookiecutter shark’s bioluminescent cells imitate the faint light of the surface above, camouflaging it when viewed from below and so allowing it to approach its prey without being seen.
; 2012). The usual basic format of the small molecules/drugs screening starts positioning zebrafish embryos or larvae in a microtiter plate, at this point, compounds are administrate by immersion and at the end of the treatment is it possible to screen the fish (Peterson and Fisherman; 2004, Mathias et al. ; 2012, Pylatiuk et al., 2014). Nice examples are: the development of a platform to detect automatically the heartbeat in zebrafish embryos to categorize the toxic levels of the compounds and to speed up the investigation of compounds to treat cardiac disease (Pylatiuk et al., 2014). And, a screening platform development to evaluate the cardiovascular toxicity of small compounds checking the hearbeat of isolated adult heart zebrafish keeped in ex-vivo culture (Kitambi et al.,
After, we measured the mass of our boat using the triple beam balance. On our paper we predicted the amount of pennies that could fit in the boat before it sank. We tested the boat in the water and added pennies one by one. We then calculated the mass of pennies that fit in the boat and the density of it. The purpose of this Lab was to make a boat that holds as many pennies as possible and understand how to calculate
Leaf-like appendages, called phyllopods provide a filtering apparatus for the collection of food. These structures beat to produce a constant current of water, allowing particles to be filtered by fine setae on the thoracic legs. The particles are then transferred to their mouth groove to be ingested. D. magna typically feed on planktonic algae (Ebert, 2005). The following experiment uses algae to test what affects the feeding rate of D. magna.
Brine shrimp feed on algae, yeast, and bacteria which are microscopic organisms. One type of green algae brine shrimp live on is called Dunaliella, which is a photosynthetic green algae. Brine shrimp are passive filter feeders, which means they don’t select what goes in their mouths. The particles are caught by or in strainers formed by the bristles on the inner edge of the legs, from there the particles go into their
These fish live in the Pacific Ocean, but they are also found in the Indian Ocean, from East Africa to Micronesia, according to the International Union for Conservation of Nature (IUCN) (2012). Their homes are the coral reefs that grow along the shores. These fish are very important to the lifecycle of the coral reef. They eat excess algae in the reef, which prevents the coral from suffocating (Frost 2016). These fish are somewhat social and are usually found in pairs or in small groups (10 to 12 members) of several different surgeonfish and tang (Bradford 2016).