Coastal Protection at Tongatapu Island‚ Tonga: A Report on Initiatives Nuku ’alofa beach seawall (Wikimedia.org) Prepared for Sylila Monteiro and Antoinette Wessels‚ 27 May 2011 By: Tattenai Katoanga (ID:1374937); Mahlon Bonga (ID:1388118); Pim Slagman (ID:1385439) Contents 1.0Introduction 3 1.1 Terms of reference 3 1.2 Procedures 3 1.3 Background 3 3.0 Findings 4 3.1 General environmental threats 4 3.2 Situation in Nuku’alofa 4 3.3 Situations in other
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reasonable variation of salinity due to the mixture of sea water and fresh water derived from land drainage” (Day‚ 1980). Hence estuaries are the transition zones from land to sea‚ and fresh water to salt water. Although estuaries are influenced by the tides‚ they are protected from the full force of ocean waves‚ wind‚ and storms by landforms such as barrier islands (water.epa.gov). Interactions between salt water and freshwater forms the basis of estuary hydrodynamics‚ together with the movement of sediment
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region between the high tide mark and the low tide mark Tides are periodic rises and falls of large bodies of water caused by the gravitational interaction between the Earth and the Moon The tide comes in and out almost twice in 24 hours‚ leaving the higher reaches of the shore exposed for much longer than the lower areas. Low tide on the rocky shores High tide on the rocky shore 1. Habitat in intertidal rocky shores An extreme habitat + Movement of the tides → change oxygenation‚ desiccation
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Oceanic‚ Oceanic and Oceanic‚ Continental and Continental. * Transform Plate Movement (plates sliding past each other)- Continental and Continental Explain the difference in planetary alignment and tidal ranges for spring and neap tides. * Neap tides represent the smallest tidal range. This occurs when the sun and moon are at right angles‚
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adaptation of these organisms found in the rocky shore ecosystem?—to do this‚ match up the following (Match the organism with its adaptation) • Organisms • Seaweeds • Limpet • Barnacles • Sea squirts • Adaptations • Store water during low tide‚ soft jelly like bodies • Holdfasts to anchor themselves and slimy mucus • Muscular foot‚ cup shaped shell • Cement to rocks‚ close their valves so they do not dry out‚ conical shape • Think about the organisms that live in the rocky shore and
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the shoreline can also go by other names: upper = splash; middle = littoral; lower = sub littoral) Animal’s tolerance to the environment around them both in the water as well as out of it determine which animal will be found in which zone. Also the tide range and time of exposure out of the water. 5. What plants are found in each zone? Be specific on listing them •Splash-Grass •Upper-Algae •Middle-Brown Rockweeds •Lower-Irish Moss‚ algae 6. What is the name of a plant-like species found in rocky shores
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3/30/2011 JAMAICA COLLEGE GEOGRAPHY SBA Coastal Morphology | Colin Campbell Table of Content 1. Aim of study . 2. Location of study .. 3. Method of data collection .. 4. Presentation‚ Analysis and Discussion of data . 5. Observation of findings .. 6. Conclusion . 7. Bibliography I Aim of Study 1. To study the effects of constructive and destructive wave processes on coastal landforms development 2. To determine the influence of the local rock and structure on the development of
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Coastal Erosion Coastal Erosion is a huge problem today and is causing our beaches to get smaller and smaller every year. Coastal erosion is also causing the coast lines to recede and therefore taking away space for which people build on. Even though coastal erosion causes issues it is also the effect of something‚ Humans! Nature has a way of keeping the world in balance‚ it creates things such as barrier islands and sand dunes to help protect against costal erosion. However‚ humans play a
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publication 20 March 1967) SUMMARY The distributions of 19 species of polychaetes burrowing in the intertidal sand and mudbanks of the Heathcote Estuary‚ New Zealand‚ are related to salinity‚ sediment grade‚ and length of time of exposure at low tide. Only Nicon aestuariensis Knox and Scotecolepides benhami Ehlers appear to be truly estuarine species reaching their greatest population densities in low salinities. Incidental observations of feeding and reproduction are reported. INTRODUCTION There
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almost always have a level of water in them. Each rock pool has different species of marine life‚ in varying numbers. The platform lies at the base of a cliff‚ and is usually sheltered from the constant barrage of waves‚ except occasionally at high tide when the occasional wave will replenish the water in each rock pool. However‚ the platform can become quite windy‚ as there is no shelter from an onshore wind. The classes from Redlands College were constantly buffeted by the onshore wind while they
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