Wachapreague, VA Field Trip Guide

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Wachapreague, VA Field Trip Guide. By: Jessica DeLosa. Getting Started. When: September 13-15 (all data collected on 9/14) Where: Wachapreague, VA What: Our class collected data for various aspects of the marine environment from several sites, such as - PowerPoint PPT Presentation

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<ul><li><p>Wachapreague, VA Field Trip GuideBy:Jessica DeLosa</p></li><li><p>Getting StartedWhen: September 13-15 (all data collected on 9/14)Where: Wachapreague, VAWhat: Our class collected data for various aspects of the marine environment from several sites, such asTemperature, salinity, dissolved oxygen, etcTypes of marine lifeWater depth</p></li><li><p>Where is Wachapreague?</p></li><li><p>Methods of Data CollectionWe went out on two boats early in the morning (at high tide)We went to several sites, and at each site used several instruments to collect dataYSI Probe- measured temperature of the water, salinity of the water, and dissolved oxygenSecchi Disk- measured the turbidity of the water and how deep the photic zone wasTrawl, Dredge, and Plankton Net- to collect various organisms from the waterTwo poles and 10 m of string to profile Cedar Island.</p></li><li><p>Methods of Data CollectionYSI ProbeDredgeSecchi DiskTrawlSediment Collector</p></li><li><p>Methods of Data CollectionClick the boxThis video shows the various methods that we used to collect data throughout the day.</p></li><li><p>Site 1- Inlet (General Information)Time- 9:35 amGPS Location- N 37 34.848 W 75 37.81Geographic Description/Location- Inlet between Paramore Island and Cedar IslandMoon Phase- Waxing Crescent 11% of Full </p></li><li><p>Site 1- Inlet (Physical and Chemical Water Data)Total Water Depth- 80 ftPhotic Zone Depth- 1 m 3.5 cmTidal Stage- High Tide, going inlandDrift- 1.3 miles in 25 minutes</p></li><li><p>Site 1- Inlet (Physical and Chemical Water Data)</p></li><li><p>Site 1- Inlet (Biological Data)</p></li><li><p>Site 2- Clubhouse Point (General Information)Time- 2:26 pmGPS Location- N 37 35.35 W75 37.80Moon Phase- Waxing Crescent 11% of Full Other- Tide is starting to fall</p></li><li><p>Site 2- Clubhouse Point (Meteorological Data)Wind Speed- wind speed has picked up from first siteCloud Coverage- very cloudyGeneral Weather Conditions- overcastRelative Humidity- none</p></li><li><p>Site 2- Clubhouse Point (Physical and Chemical Water Data)Total Water Depth- 12 ftPhotic Zone- 1 meterCurrent Speed- 1 knot</p></li><li><p>Site 2- Clubhouse Point (Physical and Chemical Water Data)</p></li><li><p>Site 2- Clubhouse Point (Geological Data)How was sediment collected? Ponar GrabColor- gray, black, brownGeneral Description of Texture- shelly bottomCompaction- hard shells</p></li><li><p>Site 2- Clubhouse Point (Biological Data)</p></li><li><p>Site 3- Hummocks Channel (General Information)Time- 3:15 pmGPS Location- N 37 36.472 W 75 38.671 Moon Phase- Waxing Crescent 11% full </p></li><li><p>Site 3- Hummocks Channel (Meteorological Data)Wind Speed- very windyGeneral Weather Conditions- overcastRelative Humidity- none</p></li><li><p>Site 3- Hummocks Channel (Physical and Chemical Water Data)Total Water Depth- 15 ftPhotic Zone- 1.5 metersCurrent Speed- 1 knott</p></li><li><p>Site 3- Hummocks Channel (Physical and Chemical Water Data)</p></li><li><p>Site 3- Hummocks Channel (Geological Data)How was sediment collected? Ponar GrabColor- green, gray, blackGeneral Description of Texture- more mud than shellsCompaction- muddy, soupy</p></li><li><p>Site 3- Hummocks Channel (Biological Data)</p></li><li><p>Site 4- Nicawampus Creek (General Information)Time- 3:44 pmGPS Location- N 37 37.648 W 75 40.813 Geographic Description/Location- mudflatMoon Phase- waxing Crescent 11% full </p></li><li><p>Site 4- Nicawampus Creek (Meteorological Data)Wind Speed- windyCloud Coverage- very cloudyGeneral Weather Conditions- overcastRelative Humidity- noneSurface Water Temperature- warmer than at previous sites</p></li><li><p>Site 4- Nicawampus Creek (Physical and Chemical Water Data)Total Water Depth- 5.2 ftPhotic Zone Depth- 25 cmCurrent Speed- 0.4 knotts</p></li><li><p>Site 4- Nicawampus Creek (Physical and Chemical Water Data)</p></li><li><p>Site 4- Nicawampus Creek (Geological Data)How was sediment collected? Ponar GrabColor- blackGeneral Description of Texture- mudCompaction- soft and soupy</p></li><li><p>Site 4- Nicawampus Creek (Biological Data)</p></li><li><p>Site Data SummaryAt the beginning of the day, the tide was coming in, and at the end of the day, it was going out. The tide coming in and going out can make a huge difference when collecting marine animal samples and sediment samples. A flooding tide can bring marine life and sediments from the open ocean into an estuary, while an ebbing tide can drag these things right back into the ocean. </p></li><li><p>Site Data SummaryThe salinity of the water at the different sites was actually slightly higher at the end of the day. The salinity of the estuary is actually higher than the salinity of the ocean because the water is more concentrated and because it hadnt rained in a while. The types of marine life we found from site to site was very diverse. We found a large amount of benthic organisms at sites 1 and 2, while we found a lot of nektonic organisms at site 4. </p></li><li><p>Site Data SummaryThe temperature of the water was actually pretty constant throughout the day from site to site. While there was some slight changes, it was never anything drastic. </p></li><li><p>Site Data Summary</p><p>Chart1</p><p>25.2</p><p>25.8</p><p>25.6</p><p>25.7</p><p>SW Temp</p><p>Sites</p><p>Temperature (degrees celcius)</p><p>Surface Water Temperature</p><p>Sheet1</p><p>Site 1Site 2Site 3Site 4</p><p>SW Temp25.225.825.625.7</p><p>Salinity31.132.632.933.4</p><p>Sheet1</p><p>SW Temp</p><p>Sites</p><p>Temperature (degrees celcius)</p><p>Surface Water Temperature</p><p>Sheet2</p><p>Salinity</p><p>Sites</p><p>Salinity (ppt)</p><p>Sheet3</p><p>Chart3</p><p>31.1</p><p>32.6</p><p>32.9</p><p>33.4</p><p>Salinity</p><p>Sites</p><p>Salinity (ppt)</p><p>Sheet1</p><p>Site 1Site 2Site 3Site 4</p><p>SW Temp25.225.825.625.7</p><p>Salinity31.132.632.933.4</p><p>Sheet1</p><p>SW Temp</p><p>Sites</p><p>Temperature (degrees celcius)</p><p>Surface Water Temperature</p><p>Sheet2</p><p>Salinity</p><p>Sites</p><p>Salinity (ppt)</p><p>Sheet3</p></li><li><p>What type of data would we find at a deep marine site at 36N and 60W?The salinity at this site would probably be lower than at the sites where we tested, because we were testing in an estuary. Being in an estuary, the salinity is usually higher because the water is more concentrated.We would probably find more nektonic organisms than anything else in more open water. The water temperature would probably be about the same, as water temperature does not change as much as land or air temperature.</p><p>Sea Surface TemperatureSea Surface Salinity</p></li><li><p>Paramore Island vs. Cedar IslandParamoreCedar</p></li><li><p>Paramore IslandMaritime ForestMarshy sideParts of the island were very dried upBoth muddy ground and sandThere was once a lake towards the center of the island- has now dried upItalian Ridge (ancient dune)Island shaped like a drum stickA lot of vegetation, high grass, and bugsVery short shoreline, not flat (eroding further back every year)</p></li><li><p>Cedar IslandSmaller of the two barrier islandsFull of sand dunesNot much plant life (mostly dune grass and sea grass, found in center of the island)Large number of shells on both the ocean side and inlet sideMany dead horseshoe crabsVery large, wide, and roundMany birds (seagulls, pelicans)Flat beach</p></li><li><p>Cedar Island- ProfilingWhile on Cedar Island, we profiled the island from one side to the other. We did this by taking to large poles with a string tying the two together.One person had one pole, and another person had the other pole.You would put one pole in the sand and the other person would move with the other pole until there was a change in topography. This was repeated across the entire beach.</p></li><li><p>Cedar Island Profiling</p></li><li><p>The MudflatClick the boxAt the end of the day, we visited a mud flat to dig for worms. This video shows us digging for worms and shows a close up of one of the worms that was found.</p></li><li><p>The End!</p></li></ul>