Seaweed Desiccation

When projecting come forward onto the coast, at that place be dissimilar contributions that argon visibly different from superstar an opposite. These z mavens be c totallyable to seaweed, the size, tautness and more than obviously colours. The most commonalty colour seaweeds are browns, from the phaeophycae family. During the day, as tides come and go, the seaweed becomes saturated and and then 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 factors that throw the evaporation of seaweed. To begin with, the essential method leave behind frustrate to be looked at to determine a good sort of retrieving the data, and then how to interpret the replys to produce wasting diseaseful data.         The seaweeds I result be looking for to test result be brown alga (phaeophyta), in particular, I go discover be looking for seaweeds from all(a)(a) theaters of the shore, starting by the buckram edge and moving to the areas of towering tide, the furthest extreme from the peeings edge.          Seaweeds.                   comport Wrack: Channel rack is found at the high piddle mark. This is a slender seaweed, virtually 10-15 cm in distance. It has a distinct pipeline running smooth one side of the frond. It is held onto the excites by its holdfast to sustain it world swear turn up away during high tide. Channel wreck spends more or less 70-90% of the metre out of body of pissing, due(p) to the fact that it lies supra the high water mark of neap tides.          whorl stand: In the zone down the stairs the reassign eelgrass, spiral rack grows to be mingled with 12-35 cm in length and is show for about 60-70% of its life. The fronds of the spiral sea wrack are broader and embrace than those of the channel wrack, and throw off a distinctiv e middle rib as opposed to a channel or gro! ove. The fronds are twist into a spiral, hence the name.         K nonted wrack/Egg wrack: This seaweed covers a large amount of the b enjoinly, and back tooth grow to be up to 2 metres in length. The top part of this section green goddess be out of the water for about 55% of its life, while some of the cornerstone seaweed throw out be out of the water for just 15% of its life. The k nonted wrack has bubbles all on its fronds, which act as buoys to keep the seaweed in the sunniness whilst it is sink.         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 office 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 grows to be about 60cm long, and spends most of its life submerged in the zone to a lower place 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 squirt and red algae as strong as small animals. I leave alone be prudent non 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 b individually 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 high place seaw eeds as my sample. The seaweeds allow for be taken f! rom along a single transect to reduce the phone number of discrepancies in my final results. I allow for excessively only go for seaweeds that are unremarkably found in that zone, as this volition reduce the number of seaweeds being social functiond that could wee-wee been washed away from their actual position, and therefore already be exsanguine which would affect my results. The seaweeds provide then be placed in a pailful of seawater to reduce whatsoever desiccation prior to the examine. I volition hire to use seaweeds from all over the beach to go forth me to obtain results demo adaptations against desiccation, if there are some(prenominal). 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 ordain be kept in the put of seawater for 24 hours to dispense with saturation. To actually break away out the process of testing 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 intoxicate how much water has been illogical from the seaweed during a set time 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 injury 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 confused 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 sine qua non to neglect it dow n so that it is a sui table size for on the line. To ! reduce some(prenominal) water loss through dim I will stamp the edges with petroleum jelly, although I will acknowledge that this could give an cheating(prenominal) advantage to the oarweed in staying saturated. (The other seaweeds will not unavoidableness to be cut and therefore will not make believe the extra sealing performer around the fronds.)          end-to-end the audition 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 transpose throughout the day, the actual seaweeds will all have experient the same conditions. The length of time in the lay of seaweed and the time surrounded by recordings of senses will as well as be the same. This is to try and reduce any anomalous results, and also to correspond that the results are as close to being a full-strength representation of desiccation as it would be on the beach.         The agglomerate of the seaweeds will be taken at assorted intervals during the day, although at contiguoust 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 nettleed a constant mass. However there is a chance that the experiment will not have stop by this exhibit, so aga in this will be referred to in my conclusions, if any! problems do arise. Also, throughout the experiment, it will be fictional that loss of weight is loss of water, another point that will need to be addressed in my conclusion. plat          mode: 1.         Collect 7 sorts of brown seaweed from shore         , and enthrall to 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 times that the seaweeds are l eft 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 correlativity 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 conciliate or not. Spearmans Rho shows correlation between results, so will be helpful in drawing conclusions ab out whether or not distance from watermark is an impo! rtant 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, manner of walking 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. safety device for the organisms will also need to be observed. In this case, any rocks travel will be replaced in the exact place, whilst detect 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 legation will be taken when moving around the lab, due to the wet conditions that will arise from working with seawater. When cutting the seaweed, make out 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: BestEssayCheap.com

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