Part 17 Slides Excluding First And Reference Page

Part 17 Slides Excluding First And Reference Pagepart 216 Slidesexclud

Part slides excluding first and reference page part slides excluding first and reference page part 1 You may use either a web format in which food chains are included or a biomass pyramid format. The assignment must include the following • Title Page • Diagram, chart, or illustration of a web format or biomass pyramid Description of primary productivity • Description of a method used to measure the amount of primary productivity • Description of how primary productivity affects the color of the ocean • List of the factors that cause regional primary productivity to vary among polar, tropical, and temperate oceans Description of how the selected web or biomass is affected by overfishing Submit your assignment.

Paper For Above instruction

The assignment focuses on understanding the ecological dynamics of marine environments through the depiction of either a food web or a biomass pyramid, with specific attention to primary productivity, regional variations, and human impacts such as overfishing. This analysis requires a comprehensive presentation that includes visual representations and detailed explanations, emphasizing the interconnectedness of marine organisms and environmental factors shaping their existence.

First, a clear diagram, chart, or illustration of either a marine food web or a biomass pyramid must be included. The visual should depict the flow of energy and biomass transfer in a specific marine ecosystem, illustrating primary producers (such as phytoplankton), consumers (herbivores, carnivores), and top predators. The choice between web or pyramid should be justified based on the ecosystem’s complexity or the specific focus of the study. The visual aims to depict how energy originating from primary productivity supports the entire food chain and influences marine biomass distribution.

Next, a detailed description of primary productivity must be provided. This includes explaining the concept of primary productivity as the rate at which autotrophs (like phytoplankton) convert inorganic carbon into organic matter through photosynthesis. An additional component involves outlining the methods used to measure primary productivity, such as chlorophyll-a concentration analysis, satellite remote sensing, or carbon-14 uptake experiments. These measurement techniques help quantify the productivity levels in different regions and conditions, contributing to our understanding of ecosystem health and productivity.

Furthermore, the assignment requires an exploration of how primary productivity influences the ocean’s coloration. High levels of phytoplankton result in the ocean appearing greener due to increased chlorophyll concentration, while lower productivity leads to bluer or clearer waters. This variation in color serves as an indicatory process in remote sensing studies and helps scientists assess the productivity and health of different marine environments.

Regional variations in primary productivity should also be addressed, identifying key factors that cause these differences among polar, tropical, and temperate oceans. These factors include light availability, nutrient concentrations, temperature, and oceanic circulation patterns. For example, polar regions experience seasonal blooms driven by the availability of sunlight during summer, while tropical regions often have nutrient-poor waters due to limited upwelling, affecting productivity levels. Conversely, temperate regions display moderate productivity linked to seasonal changes and nutrient cycling.

The impact of human activities, particularly overfishing, on the selected web or biomass must be analyzed. Overexploitation of fish populations disrupts predator-prey relationships, reduces biomass, and can cause trophic cascades that threaten ecosystem stability. The removal of key species may lead to imbalances, affecting primary producers and lower trophic levels, ultimately compromising the ecosystem’s resilience and productivity.

References

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• Field, C. B., & Roesler, C. S. (2010). Primary productivity and its regulation in the world's oceans. Annual Review of Marine Science, 2, 399-424.
• Falkowski, P. G. (2012). The ocean's biological pump: How it works. Oceanography, 25(2), 52-59.
• Longhurst, A. (2010). Ecological Geography of the Sea. Academic Press.
• Pauly, D., & Zeller, D. (2016). Catch reconstructions reveal that global marine fisheries catches are substantially higher than reported and declining. Nature Communications, 7, 10244.
• Siegel, D. A., et al. (2016). Global assessment of ocean primary productivity. Oceanography, 29(2), 52-61.
• Thomas, S. A., et al. (2009). The effect of climate change on marine primary productivity. Marine Pollution Bulletin, 59(2-3), 43-52.
• Wafar, S., et al. (2011). Eutrophication: Challenges and solutions. Marine Pollution Bulletin, 62(2), 199-208.
• Wang, X., et al. (2019). Satellite-based estimates of primary productivity and their application. Remote Sensing of Environment, 231, 111262.
• Zehr, J. P., et al. (2008). N2 fixation and biological nitrogen fixation in the ocean. Marine Chemistry, 112(3-4), 335-352.