Browsing by Subject "Duke University Marine Laboratory"

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Open Access
CHARACTERIZATION OF BOTTLENOSE DOLPHIN (TURSIOPS TRUNCATUS) USE OF RESTRICTED AREAS IN THE PAMLICO SOUND, NC
(2003) Maher, Jessica
In two areas of the Pamlico Sound, NC, the U.S. Marine Corps and other branches of the military conduct training activities that involve airborne deployment of ordnance. Entry into these areas is restricted, and as such, they have not been included in previous surveys for marine mammals or other protected species. Since July 2002, however, we have been contracted by the Marine Corps to conduct photo-identification surveys for bottlenose dolphins in two bombing ranges (BT-9 near Brandt Island Shoal and BT-11 in Rattan Bay) and waters surrounding the ranges. We observed 261 dolphins (in 10 sightings) during eight surveys conducted between July and December, 2002. Of the 261 animals photographed, 100 met our criteria for distinctiveness; these 100 identifications represent 96 individual dolphins, as four were seen on two occasions. We matched 39 dolphins to the Duke University Marine Laboratory/University of North Carolina at Wilmington dorsal fin photo-identification catalog, and we made 57 new identifications. Many dolphins (185) were sighted inside the bombing range boundaries, sometimes in close proximity to the bombing targets. The BT-9 range had a daily occupancy of 0.17 sightings/survey day and an hourly occupancy of 0.09 sightings/hour; BT-11’s daily occupancy was 0.38 sightings/survey day and its hourly occupancy was 0.31 sightings/hour; waters adjacent to the bombing ranges had a daily occupancy of 0.88 sightings/survey day and an hourly occupancy of 0.45 sightings/hour. The combined (bombing ranges and adjacent waters) mean dolphin group size was 26.1 ± 27.4 SD. The mean density of BT-9 (75 km2) was 0.11 dolphins/km2 and the mean density of BT-11 (11 km2) was 1.50 dolphins/km2. This work represents the first systematic survey effort for bottlenose dolphins in restricted areas of the Pamlico Sound.
Open Access
JOINING THE CAMPUS SUSTAINABILITY MOVEMENT: AN ENVIRONMENTAL AUDIT OF THE DUKE UNIVERSITY MARINE LAB
(2007-05) Seigel, Kimberly
The Sustainability Revolution commenced as a reaction to the environmental degradation caused by the Industrial Revolution. The Sustainability Revolution introduced the general public to the three pronged approach of sustainability: uniting economics, the environment, and society. The Campus Sustainability Movement represents one of the sub-movements within the Revolution. This Movement introduced the trend to evaluate and audit campus environmental practices and policies, and monitor their impacts on the environment. In 1989, the University of California at Los Angeles conducted the first campus environmental audit in the United States. Their audit looked at various campus practices such as water and energy consumption, waste management, and procurement practices. This audit paved the way for several colleges and universities worldwide. In the fall of 2006, the Duke University Marine Lab, located in Beaufort, NC, embarked on a Green Initiative. In order to facilitate the process of the Initiative, the Marine Lab called for an environmental audit of their current practices. Due to time constraints, this masters project focuses solely on energy consumption at the Lab, in the form of electricity consumption. Previous campus audits conducted at other universities were referenced to guide the audit’s research questions. Financial records and kilowatt-hour meter readings from 1999 through 2006 were collected as a means to identify exactly where the Marine Lab must make adjustments. Although some of the data appears to be flawed, it still reveals some encouraging trends at the Marine Lab, namely that energy consumption has decreased over the past 6 years. This masters project recommends that in order to see additional improvements, all buildings at the Marine Lab must have meters on them. Furthermore, this masters project suggests that communication between the Marine Lab and the Facilities Management Department in Durham be improved.