Skip to primary navigation Skip to content Skip to footer

Blog

eggs

Sea Urchin Fertilization Lab

During the fall semester at the University of South Carolina, I was enrolled in a course called Marine Science 311. This course included a lab that met once each week. My favorite lab that I was able to partake in was one entitled Sea Urchin Fertilization. I had never really taken the time to consider how such alien looking organisms would be able to reproduce until I was involved in this study. As it turns out, I learned that sea urchin egg fertilization actually happens outside of the body in open sea water. In order to recreate this in a lab setting, my classmates and I had access to several sea urchins, their genders unknown to us. In order to determine the genders of the organisms, we had to inject each individual with .5 M potassium chloride.  Once injected, we were…

Microplastics: The Invisible Threat

Not long ago was plastic almost completely absent in the day to day lives of the average American. Now, it has essentially reached ubiquity. Not surprisingly, its proliferation was initially a reflection of the fertility of American economics during the mid twentieth century. A material referred to as Bakelite, first synthesized by a Belgian chemist named Leo Baekeland in 1907, marked the beginning of what has been rightfully coined “The Polymer Age”. (Meikle, J. L. 1997). It was even marketed as “the material of a thousand uses”, and the infinity symbol was its trademark. (Meikle, J. L. 1997).  A newspaper ad for Bakelite in the early 1900’s. Fast forward to today, and the amount of plastic being produced annually stands out at two hundred and forty five million tons. (Andrady, A. L. 2011). One of the main reasons that the…

Horseshoe Crabs, Red knots and Humans: How one species affects them all

The red knot is a shore bird species that visits the shores of Cape May on its migration route. This species has the longest migration route of any species that visits our shores. It travels from tropical and temperate conditions in the winter all the way to the Arctic for breeding, a journey that totals…