Oceanography Commons^™

36 Years After The Species' Mass-Mortality: Diadema Antillarum Test Sizes, Population Densities, And Substrate Preferences In Three Guna Yala Reefs Near Wichub Wala Island, Bimini Horstmann

Independent Study Project (ISP) Collection

In January 1983, a waterborne pathogen beginning near the Atlantic Panama Canal entrance caused history's largest recorded marine animal die-off, wiping out 95-99% of Diadema antillarum populations throughout the Caribbean. D. antillarum, the long-spined sea urchin, is a keystone herbivore in coral reefs and its decreased densities have caused many reefs to suffer macroalgal phase shifts. Modest recovery of this species has been documented in some Caribbean locations, but reefs in Guna Yala, Panama continued to experience population decline. This study investigates density, test size, and substrate preferences of D. antillarum in three shallow coral reef areas to update the …

The Influence Of Location, Positioning, And Seasonality On Feeding Behavior Of The Sydney Oyster (Saccostrea Glomerata) In New South Wales, Australia, Nathaniel Hess

Independent Study Project (ISP) Collection

Oysters are hard shelled bivalves that aggregate over time to create structures in estuarine systems, known as oyster reefs. These reefs are important for the promotion of estuarine biodiversity by supporting many species of fish, invertebrates, and plants. They also act as a key contributor to water health by using active suspension feeding mechanisms and selective feeding to remove nutrients and water borne pollutants from estuarine systems. They have been touted as possible bio-remediators. They also effect rates of sedimentation in estuaries.

Oyster reefs have historically been threatened by anthropogenic influences such as overharvesting, destructive fishing practices, water pollution, CO2 …

Beach Composition Preferences For Nesting Populations Of Leatherback Sea Turtles (Dermochelys Coriacea), Armila Beach, Guna Yala Comarca, Scott Campbell

Independent Study Project (ISP) Collection

Sea turtles play a critical role in marine ecosystems all over the world, including the Caribbean Sea. However, many sea turtle species are under threat due to anthropogenic impacts, such as habitat destruction and fisheries bycatch. This has caused significant declines in sea turtle populations around the world, which in turn has impacted marine ecosystems where sea turtles play critical roles in proper ecosystem functioning. A crucial part of the sea turtle life cycle that has been threatened by anthropogenic factors is nesting. Sea turtles rely on unspoiled beaches with particular physical characteristics for laying their eggs. One of the …

The House Of The Fish: Collaborative Coral Reef Awareness Project On Nosy Be, Meghan Hurley

Independent Study Project (ISP) Collection

The purpose of this project was to initiate a place-based coral reef education project, with the ultimate goal of improved localized conservation efforts in the face of growing global threats. Three principal groups that interact with coral reefs on Nosy Be were interviewed: fishers, tourist guides, and conservationists. Research was conducted on the biology of coral reefs, and on the most prominent threats facing coral reefs in the Indian Ocean and around Nosy Be. Information and direct quotes from interviews, and the results of research, were incorporated into a photographic journal entitled "In the House of the Fish" or "An-tragno …

Impacts Of Anthropogenic Waste On Tasmanian Pacific Gull (Larus Pacificus) Diet, Anne Bartlett

Independent Study Project (ISP) Collection

Plastic pollution is one of the foremost environmental issues that the world is currently experiencing. The effects of plastic pollution are great and range from leaching of hazardous chemicals into the environment to ingestion of plastic waste by wildlife, including seabirds. Due to the high rates of plastic consumption by seabirds, many recent studies have been performed to determine the biological impacts of plastic consumption on various seabird species. The Pacific Gull (Larus pacificus) is the world’s largest sea gull and the only gull endemic to Australia, yet very limited information exists on this species. This study examines the impacts …