Estuaries - Ms. Snyder

Estuaries - Ms. Snyder


2. What is an estuary? 4 Estuaries

Semi-enclosed areas where fresh water and seawater meet and mix. Interaction of land and sea!

Some of the most productive environments on earth! Most affected by humans! Harbors

Cities 5 Value of Estuaries

Protected fertile habitat Home for many! Vital breeding and feeding grounds Cities built near estuaries because of great fishing. (shrimp and crab)

6 Physical Characteristics of Estuaries Salinity in a salt wedge

Substrate Rivers carry nutrients into estuary by size and weight.

Mud = silt and clay high in nutrients Anoxic = low oxygen in mud b/c bacteria respiration. Anaerobic bacteria thrive in mud.

7 Physical Characteristics of Estuaries Water temp varies.

Exposed organisms during low tides. Sun, Drying out, Predation 10 High Tide

Low Tide The Salt wedge moves in and out with the tide 11 The daily tides play a crucial role in salt marshes.

They help circulate detritus and nutrients and expose mudflat organisms to predation by shorebirds and other animals

12 Look at the shallow roots of this mangrove tree reaching above the mud to get oxygen. Why does mud not

have much oxygen in it? 13 Cordgrass is an important component of salt water marshes

14 Pickle Weed is a common succulent plant in salt marshes around the world. 15 A salt marsh near Atlantic Beach, NC. Many of these types of marshes have been filled in and destroyed.

16 The Atlantic menhaden is an important commercial fish spawn offshore and larvae drift with tides into the estuary to grow. 17

Recently Viewed Presentations

  • Online Assessment External Examiner Packages  OA External Examiner

    Online Assessment External Examiner Packages OA External Examiner

    UWE. Academic. Creates an External Examiner package (including commentary, & brief where required) - this is stored in the course on Blackboard. UWE. Administrator. Emails the External Examiner to tell them the package is now ready to be accessed via...
  • IT Optimization and Service Management

    IT Optimization and Service Management

    Talk about the approach today's meeting We've enjoyed working together to prepare the meeting materials and have learned along the way After all, that's what it's all about… "How To" Knowledge Sharing ===== Panel Probing: Why is Change Management important...
  • Lower Extremity H&P: Knee Exam

    Lower Extremity H&P: Knee Exam

    Have the patient flex his quadricep, then apply a posteriorly-directed force to the patella. Apley's test. With the patient prone, flex the affected knee to 90 degrees, grasp the foot and rotate the knee, applying a downward force. Reproduction of...
  • 1st International Alcohol, Tobacco and Other Drugs Nursing

    1st International Alcohol, Tobacco and Other Drugs Nursing

    Theoretical Framework The two theoretical frameworks that guided this research were Jean Watson's Theory of Human Caring and Sister Callista Roy's Adaptation Model.Watson (1996) states that nursing is sustained through education and practice developed to deliver care in a moral...
  • Apresentação do PowerPoint

    Apresentação do PowerPoint

    EUA (FDA), 1981 a 1988: De 348 novos medicamentos, só 3% representaram contribuição importante em relação aos tratamentos já existentes. Canadá (PMPRB), 1990 a 2003: De 1.147 patenteados, apenas 6% foram considerados realmente inovadores. USO TRADICIONAL DE MEDICAMENTOS Mas há...
  •  Deployment of personnel  Dispatch of poll parties  Receipt

    Deployment of personnel Dispatch of poll parties Receipt

    * Counter system - AC wise Counters for sealed CUs + Form 17C + PrO declaration Counters for other election papers - statutory + non statutory Counters for other items / articles Counters for PO diary + Mock Poll certificate...

    Calcul de la consommation en plongée LES PREALABLES Connaître la loi des gaz parfaits : PV/T = constante Connaître le volume de la bouteille utilisée Connaître la profondeur d'évolution Connaître la durée de la plongée Savoir déterminer les paliers à...
  • Was the Weimar Republic doomed from the start?

    Was the Weimar Republic doomed from the start?

    Sturdy Beggars . and they used a lot of clever tricks to get money = This became a serious social problem. Religion: Catholics versus Protestants. The Spanish Armada. In the 25 years before Elizabeth became queen, religion swung between Catholicism...