Exploring the Impact of Krill Decline on Southern Ocean Whales

7-1 Final Paper Jordan Gum Southern New Hampshire University June 18 th , 2023

Part 1: Natural Science Topic Exploration  Whales in the Southern Indian Ocean are losing their food supply, losing a lot of reserves that they rely upon. Due to various reasons, the size and number of krill are shrinking, and this is affecting the amount of food that whales can consume.  I have been studying the effects of global warming on the population of the ocean for a while now. Whales have always been of interest to me but there have always been bigger issues that I have addressed. I’m very interested in learning a bit more about this specific topic through this course.  This entire article relies on scientific research to make its point. The numbers and stats of krill and algae in the ocean shrinking is pivotal in understanding why it is that the whales are struggling. I will be looking heavily at charts and graphs that explain the number in this for about the entire time I am researching this. Part 2: Fundamental Questions About the Natural World  Is there a correlation between the diminishing population and size of whales in the Southern Indian Ocean and the decline of krill population and size in the area?  If the krill population and size in the Indian Ocean decrease then, the population and size of whales in that area will follow.  I have previously studied this topic in classes before, so I think that I already have a pre-conceived notion of this topic. I am passionate about animal protection and especially the ocean, I think that we choose things that we are passionate about. This makes it more fun to read about and research. With the document and topic being the

only one that we will be writing about this term, this was the point to make it something we’ll enjoy writing about and studying. Part 3: Major Developments in Natural Sciences  stable isotope analysis has provided a valuable tool for studying the relationship between whale and krill populations. It has helped researchers understand the feeding dynamics, migration patterns, and ecological roles of these organisms. By utilizing this technique, scientists can better investigate and monitor the potential impact of declining whale populations on krill populations and the broader ecosystem.  The work of the scientists at AERD has been crucial in advancing our understanding of the complex relationship between decreasing whale populations and decreasing krill populations. Their contributions, combining cutting-edge technologies, field studies, and stable isotope analysis, have provided valuable data and insights that help inform conservation efforts and ecosystem management in the Southern Ocean. Through their dedication and scientific rigor, they have made significant strides in unraveling the intricate dynamics of this vital ecological interaction. Specifically, George Watters, Ph.D. and Heidi Taylor who are the leaders of the team, they do incredible work studying eating and migration patterns of many ocean species.  Something that I have run across while studying this topic is the support and purchase of whale specimens or parts of them that make their way to researchers in countries with strict anti-whaling laws. To use the U.S. as an example, have completely outlawed whaling since 1982. There are other countries like Iceland that make a huge profit on killing whales for meat and research purposes. The ethical issue that we run into here is

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that researchers are using parts from these animals for their research, attained by the countries that still allow whaling. Is it unethical to be supporting these such countries? Part 4: The Value of Studying the Natural Sciences  Viewing the world through a scientific lens fosters an appreciation for the wonders of the natural world. Understanding the scientific principles behind natural phenomena enhances your awe and curiosity about the universe, from the intricacies of biology to the vastness of the cosmos. You develop a deeper connection with nature and a desire to protect and conserve it for future generations.  Being a scientifically informed citizen gives you the ability to make wise decisions, participate in public discourse, solve problems in your community, advance health and safety, encourage innovation, and motivate others. Your knowledge of science becomes a priceless advantage in building a flourishing and informed community.  Being scientifically informed enables you to anticipate and prepare for emerging global challenges. Scientific advancements and research shed light on potential future trends, risks, and opportunities. By staying updated on scientific discoveries and technological breakthroughs, you can anticipate the implications and impacts of these developments on global contemporary issues, allowing you to be proactive in finding innovative solutions and adapting to change.

Citations:  ScienceDaily. (2023, May 11). Global warming puts whales in the Southern Ocean on a Diet . ScienceDaily. https://www.sciencedaily.com/releases/2023/05/230511164611.htm  Crow Canyon Archaeological Center. (2021, August 30). Stable Isotope Analysis . Crow Canyon Archaeological Center. https://www.crowcanyon.org/stable-isotope- analysis/  Fisheries, N. (n.d.). Antarctic Ecosystem Research Division, Southwest Fisheries Science Center . NOAA. https://www.fisheries.noaa.gov/about/antarctic-ecosystem- research-division-southwest-fisheries-science-center

Module 7 Activity Final

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