Aquatic ecology

Shark culling is a state government implemented policy in which sharks within the vicinity of a beach can be legally killed through shark nets or drumlines or a combination of the two. Drumlines are unmanned buoyant drums anchored one kilometre of a beach's shoreline. In between the drums are ropes with hooks. Drumlines are baited so that if a shark is swimming in the vicinity of a beach it would be attracted to the bait and not humans. Each state has different policies on drumlines depending on…

T., Valentini, A., Miquel, C., Taberlet, P., Bellemain, E., & Miaud, C. (2012). Improved detection of an alien invasive species through environmental DNA barcoding: The example of the American bullfrog Lithobates catesbeianus. Journal of Applied Ecology, 49, 953­959. doi:10.1111/j.1365­2664.2012.02171.x In this research work authors suggests that It is more easy to destroy the Alien Invasive Species(AIS) at their very initial stage. They supported that now it is possible to detect low amount of…

on the requirements listed in the job posting, I feel that my skills and experience are a perfect match for this position. As you can see on my enclosed resume, I graduated from Iowa State University with a degree in Animal Ecology with an emphasis in Fisheries and Aquatic Sciences. Along with that, I have expertise with water quality, knowledge of river conservation, and fisheries management protocols from my time with the Iowa Department of Natural Resources and as a student at Iowa State…

Sustainability is defined by Miller & Spoolman, (2009) as the “Ability of earth’s various systems, including human cultural systems and economies, to survive and adapt to changing environmental conditions indefinitely.” Applying this definition to ecology, there are four scientific principles of sustainability that highlight how the ecosystem has naturally sustained itself for billions of years. The thought by environmental scientists is that if humans incorporate these principles into our…

Invasive species are easily comparable to the explorers of the old days. Explorers could be helpful by introducing new supplies, like horses, during the big Columbian Exchange. Explorers could also be largely negative, bringing disease and slavery into the nations they conquered. Explorers sometimes just set up trade relations and left well enough alone. Much like these explorers, invasive species have the propensity to help, hurt, or assimilate into their new surroundings. Experts on invasive…

Although the De Mutsert Fish Ecology Lab was the first lab I officially joined, my previous lab experience that I received from courses that were not required under the biology core curriculum excelled my ability to contribute to the success of this lab. While volunteering in the lab…

TOLERANCE OF LIVING ORGANISMS TO LIMITING FACTORS Marjorie Villareal INTRODUCTION It is a recognized principle of Ecology that the interactions of organisms and environment are reciprocal. The environment not only determines the conditions under which life exists, but the organisms influence the conditions prevailing in their environment as well (Brett, 1969). When organisms encounter harsh abiotic conditions, they may have one of two responses. Evolutionary adaptations in their morphology,…

Lemna minor, more commonly known as duckweed, is a tiny and free-floating plant found in still ponds. Lemna grows up to three leaves from a single root, and grow in very more massive and dense colonies. Duckweed replicates very fast, and can almost double its mass in about 24 hours (S.N.Xiu et al, 2010). In our experiment, the causal question was what affects the growth rate of Lemna minor. The hypothesis was that water quality or nutrient availability would affect the growth rate of Lemna…

The Plan, Do, Check, Act cycle is the bedrock of the EPCOR HMS. I set out a plan to spend 30 minutes each day to study the EPCOR OHSMS and to see how this system applied to the integrated management sytem. By studying the various components of the EPCOR integrated management sytem, I was able to understand hoiw the HSE corporate services provides structure to operational groups including the HSE management system. I was also able to understand how the check part of the OHSMS was necessary to…

have kept people visiting for many years, might be at risk of nonexistence. Acadia National park has been around for almost a century, providing breathtaking scenery and wondrous adventures for those visiting, but recent increases in air pollution, aquatic mercury content, and climate changes might not only dissuade potential…