6-8

Saltwater Wetlands Research

Implement this Lesson:

This lesson is best to be used with other similar lessons on ecosystems, adaptations, organisms, etc. This lesson also needs to be completed in conjunction with visiting a saltwater ecosystem.

Lesson Objectives:

  • Students will understand the key components of coastal ecosystems.
  • Students will learn about the importance of coastal ecosystems for biodiversity and human communities.
  • Students will develop an appreciation for the conservation of coastal ecosystems.

Texas Essential Knowledge and Skills (TEKS)

6.11(A) research and describe why resource management is important in reducing global energy poverty, malnutrition, and air and water pollution

6.11(B) explain how conservation, increased efficiency, and technology can help manage air, water, soil, and energy resources

6.12(A)* investigate how organisms and populations in an ecosystem depend on and may compete for biotic factors such as food and abiotic factors such as availability of light and water, range of temperatures, or soil composition

6.12(B) describe and give examples of predatory, competitive, and symbiotic relationships between organisms, including mutualism, parasitism, and commensalism 

6.12(C) describe the hierarchical organization of organism, population, and community within an ecosystem

6.13(A) describe the historical development of cell theory and explain how organisms are composed of one or more cells, which come from pre‐existing cells and are the basic unit of structure and function

6.13(B) identify and compare the basic characteristics of organisms, including prokaryotic and eukaryotic, unicellular and multicellular, and autotrophic and heterotrophic

6.13(C) describe how variations within a population can be an advantage or disadvantage to the survival of a population as environments change

7.10(A)* describe the evidence that supports that Earth has changed over time, including fossil evidence, plate tectonics, and superposition

7.10(B)* describe how plate tectonics causes ocean basin formation, earthquakes, mountain building, and volcanic eruptions, including super volcanoes and hot spots 

7.11(A)* analyze the beneficial and harmful influences of human activity on groundwater and surface water in a watershed 

7.11(B)* describe human dependence and influence on ocean systems and explain how human activities impact these systems

7.12(A)* diagram the flow of energy within trophic levels and describe how the available energy decreases in successive trophic levels in energy pyramids

7.13(A)* identify and model the main functions of the systems of the human organism, including the circulatory, respiratory, skeletal, muscular, digestive, urinary, reproductive, integumentary, nervous, immune, and endocrine systems 

7.13(C)* compare the results of asexual and sexual reproduction of plants and animals in relation to the diversity of offspring and the changes in the population over time 

7.13(D)*describe and give examples of how natural and artificial selection change the occurrence of traits in a population over generations

7.14(A) describe the taxonomic system that categorizes organisms based on similarities and differences shared among groups

8.10(A) describe how energy from the Sun, hydrosphere, and atmosphere interact and influence weather

8.10(B) identify global patterns of atmospheric movement and how they influence local weather 

8.10(C) describe the interactions between ocean currents and air masses that produce tropical cyclones, including typhoons and hurricanes

8.12(B) describe how primary and secondary ecological succession affect populations and species diversity after ecosystems are disrupted by natural events or human activity

8.12(C) describe how biodiversity contributes to the stability and sustainability of an ecosystem and the health of the organisms within the ecosystem

8.13(A) identify the function of the cell membrane, cell wall, nucleus, ribosomes, cytoplasm, mitochondria, chloroplasts, and vacuoles in plant or animal cells

8.13(C) describe how variations of traits within a population lead to structural, behavioral, and physiological adaptations that influence the likelihood of survival and reproductive success of a species over generations

8.13(B) describe the function of genes within chromosomes in determining inherited traits of offspring

Why Saltwater Wetlands Matter on the Texas Coast

Saltwater wetlands are areas where land meets the ocean. They can be marshes, tidal flats, or mangroves that flood with salty or brackish water. They may look like soggy grasslands, but they’re some of the most important habitats on Earth!

Baby Animal “Nurseries”

  • Wetlands are safe places for baby fish, shrimp, crabs, and oysters to grow.

  • The thick plants give them hiding spots from bigger predators.

All-You-Can-Eat Buffets

  • Wetlands are full of plants and tiny animals.

  • Birds, fish, and mammals find lots of food here.

Nature’s Water Filters

  • Plants in wetlands trap dirt and pollution before it reaches the ocean.

  • This helps keep the water clean and clear for people and wildlife.

Storm Shields

  • Wetlands act like natural sponges.

  • They soak up floodwater and slow down waves, protecting towns and wildlife from storms and hurricanes.

Homes for Special Animals

  • Many birds, fish, and insects only live in wetlands.

  • They’re also important resting spots for migrating birds.

Climate Helpers

  • Wetlands store carbon in their plants and soil.

  • This helps slow down climate change.