Seaweed Desiccation

When hold backing come forward onto the coast, at that place atomic number 18 dissimilar contributions that argon visibly different from adept an opposite. These zonas argon c to each 1(prenominal)able to seaweed, the size, tautness and more(prenominal) obviously colours. The most mutual colour seaweeds ar browns, from the phaeophycae family. During the day, as tides come and go, the seaweed becomes saturated and consequently starts to dry away, c on the wholeed vapour. This coursework leave alone look at the adaptations of seaweeds to reduce vaporisation, and alike the detailors that throw the vaporisation of seaweed. To begin with, the essential method leave behind nettle to be looked at to determine a good way of retrieving the data, and then how to interpret the entrusts to produce wasting diseaseful data.         The seaweeds I exit be looking for to test result be brown alga (phaeophyta), in particular, I go forth be looking for seaweeds from all(a)(a) playing fields of the shore, starting by the plastered edge and moving to the areas of high gear tide, the furthest extreme from the peeings edge.          Seaweeds.                   passageway Wrack: Channel rack is found at the high piss supply mark. This is a gnomish seaweed, virtually 10-15 cm in length. It has a distinct pipeline running smooth one side of the frond. It is held onto the flaps by its holdfast to sustain it being serve away during high tide. Channel wreck spends more or less 70-90% of the metre off of urine, delinquent to the fact that it lies supra the high water mark of neap tides.          turn stand: In the zone down the stairs the descent eelgrass, spiral single-foot grows to be mingled with 12-35 cm in length and is show for ab extinct 60-70% of its life. The fronds of the spiral sea wrack are broader and embrace than those of the chann el wrack, and throw off a distinctive midd! le rib as opposed to a channel or groove. The fronds are twist into a spiral, hence the name.         K nonted wrack/Egg wrack: This seaweed covers a large amount of the b snap offly, and endure grow to be up to 2 metres in length. The top part of this section abide be out of the water for about 55% of its life, while some of the piece of tail seaweed chamberpot be out of the water for just 15% of its life. The knotted wrack has bubbles all on its fronds, which act as buoys to keep the seaweed in the sunniness whilst it is go under.         Bladder wrack: This seaweed can grow to be about 1 metre long, and exists on board the egg wrack. It too has bladders of gunslinger along its fronds, which help to separate the fronds when in the water, and beca lend oneself al humblelying all parts of the plant to photosynthesise. The fronds are broad and flattened, and possess a mid rib.         Serrated wrack: This species generally g rows to be about 60cm long, and spends most of its life submerged in the zone infra the egg and bladder wrack. This zone is exposed at low water during spring tides.         Oarweed/genus Laminaria saccharina: Sub-tidal. Large brown algae rarely out of water except at low tide. Large fronds, and holdfasts sticking the seaweed to rocks below the water. Mucilaginous to help block water loss. Fronds are thick, with a large surface area. Amongst the seaweeds I forget be using, there leave alone alike be examples of verdure and red algae as strong as small animals. I leave alone be prudent not to disturb the habitat, and so not unbalance the ecosystem. This testament be meditaten into account at all multiplication during the investigation, and all of the seaweeds bequeath be returned to the beach after the realistic to provide habitat and food for each other organisms. curriculum:         I go away collect small amounts of each of the to a higher(prenominal) place seaweeds as my sample. Th! e seaweeds leave be taken from along a single transect to reduce the phone number of discrepancies in my final results. I leave alone excessively only map seaweeds that are unremarkably found in that zone, as this go forth reduce the number of seaweeds being handlingd that could surrender been washed away from their actual position, and therefore already be slain which would affect my results. The seaweeds leave alone then be placed in a pailful of seawater to reduce whatsoever desiccation prior to the examine. I pull up stakes hire to use seaweeds from all over the beach to go forth me to obtain results wake adaptations against desiccation, if there are whatever. If I used seaweeds from the same area on the beach, the adaptations would all be the same, and rates of desiccation would not be different.         The seaweeds depart be kept in the place of seawater for 24 hours to dispense with saturation. To actually transport out the process of t esting desiccation, I will prepare a line to knack the seaweeds off. The seaweeds will then be weighed, and hung on the line. The weighing will allow the results to be used to agnize how much water has been illogical from the seaweed during a set while period. The seaweed will be turn out out along the line however so that water molecules from one seaweed does not diffuse into the one next to it. I will use paperclips, shaped as hooks to hang the seaweeds with as I feel these would be the best things to use to restrict the suffering done to the seaweeds.         The seaweed will not charter to be a certain system of weights to begin with, as it is the percentage water loss that will show the desiccation rates, from which discordant graphs can be drawn to show comparisons mingled with the seaweeds. The test will be performed using three samples of each of the seaweeds so that an average can be produced as a final result. To hang the oar weed, I will privatio n to neglect it down so that it is a sui table size ! for on the line. To reduce each water loss through dim I will seal off the edges with petroleum jelly, although I will acknowledge that this could give an unfair advantage to the oarweed in staying saturated. (The other seaweeds will not drive to be cut and therefore will not throw off the extra sealing performer around the fronds.)          passim the essay I will need to date that some variables are standardised. The temperature of the room will be the same for all of the seaweeds, as will the wispy. This means that although the set about and temperature may permute throughout the day, the actual seaweeds will all have go through the same conditions. The length of time in the put of seaweed and the time betwixt recordings of senses will as well as be the same. This is to try and reduce any anomalous results, and also to figure that the results are as close to being a unbent representation of desiccation as it would be on the beach.      Â Â Â Â The messiness of the seaweeds will be taken at dissimilar intervals during the day, although at faithfult it will be difficult to take the results. In this case, the results will be predicted using the surrounding results, and will be shown on any graphs and tables as predicted results. Again this could gratuity to discrepancies in my final results, and this will have to be addressed.

The defy result will be taken when changes in weight have almost leaded a constant mass. However there is a chance that the experiment will not have halt by this exhibit, so again this will be referred to in my conclusions, if an y problems do arise. Also, throughout the experiment,! it will be simulated that loss of weight is loss of water, another point that will need to be addressed in my conclusion. plat          manner: 1.         Collect 7 sorts of brown seaweed from shore         , and enthrall to science lab in a bucket of seawater. 2. Leave the seaweeds in the bucket of water for 24 hours to ensure saturation. 3. Record the mass of each seaweed. 4. Hang seaweeds onto line (see diagram) 5. Record the masses at various intervals during the day, ensuring that all seaweeds are weighed, and the scales are set at 0 for each measurement 6. Try to keep light and temperature as constant as possible, and ensure that all seaweeds are kept in the same conditions for the duration I call up that my results will show that seaweeds from different zones on the shore do have adaptations that reduce the rate of desiccation. This is due to the varying clock that the seaweeds are left out of the water when they are on the shore. The difference in surface area:volume will also have an effect on the results. Ficks Law will become important here in assessing the relation between surface area, volume and water loss. ALTERNATIVE HYPOTHESIS: Seaweeds nigh to the waters edge will have a faster desiccation rate than those further up the beach. handicap HYPOTHESIS:         There will be no coefficient of coefficient of correlation between aloofness up the beach and desiccation rate.          one time my results have been collected, I will produce a table showing the masses of each seaweed samples, the averages and the times that the weights were measured. From these results I will be able to produce the figures needed to carry out a statistical test. I will use Spearmans Rho as this will show whether my alternative hypothesis was refine or not. Spearmans Rho shows correlation between results, so will be helpful in drawing conclusions about whether or not distance from watermark is an important factor in desiccation. !         Throughout the experiment I will need to observe various condom aspects. For instance, on the shore I will need to ensure that I wear suitable clothing and footwear. For example, pass boots will allow improved grip on the rocks, which will be slippery due to the seaweeds living on them, and will also offer support to my ankles if I do slip. sentry duty for the organisms will also need to be observed. In this case, any rocks travel will be replaced in the exact place, whilst spy any animals or plants that may become injured when the rock is returned. all(a) organisms and/or other things removed from the beach will be returned at the end of the field trip. In the lab, extra bearing will be taken when moving around the lab, due to the wet conditions that will arise from working with seawater. When cutting the seaweed, look at will be taken with the knife and also reach will be washed regularly to stop any seawater being consumed which could cause illness.          If you want to get a full essay, order it on our website: OrderCustomPaper.com

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