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. Figure 2: Bongo net (mesh size 500 µm, mouth diameter 0.3m and length 1.3m).
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.
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? a. Deoxyribose sugars b. Phosphodiester bonds c.
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.
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. I also wipe-down any areas from water spills around the tank.
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.
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.
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. This tecnique is called counterillumination and is used by numerous organisms in the deep sea; both
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.,
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
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. The rate of filtration
The first step to check aquatic nitrate was to rinse the pipette, fill it up with 5mL of water from the aquatic section and put it in a test tube, the next thing they had to
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).