“It’s important to understand the movement of North Atlantic Right Whales, especially in relation to their whereabouts near our projects,” said Alan Shirey, environmental engineer for the U.S. Army Corps of Engineers, Charleston District. “These whales tend to migrate in shallower waters than other whales, which can put them near our dredging projects. These flights will provide more detailed information on their migration habits than we have now so that we can better plan our work.”
Scientists estimate there are less than 400 right whales remaining, making them one of the rarest whales in the world. Being able to track and monitor their movements brings awareness to the species and is critical to their survival.
“We are very excited to expand our aerial survey efforts this year,” said Melanie White, North Atlantic Right Whale Conservation Project Manager. “It’s such an incredible honor to be a part of the collective community who are so dedicated to saving this species. COVID has presented some challenges but we’ve implemented strict protocols and have been able to open two new field houses, hire six new biologists, and add two planes to support the new coverage area. In all, we will be covering an additional 3,700 miles.”
White and her team fly a grid pattern of tracklines which range between 25 and 50 nautical miles (nmi) long. In the 2019-2020 season the CMARI team was generally responsibly for 800 nmi of tracklines, logged 230 survey hours, was the first to sight the first right whale mother/calf pair of the season, and spotted eight unique mother/calf pairs. This season, the team is covering over 4,500 nmi.
The data collected by CMARI’s right whale team is submitted to entities including the New England Aquarium, University of Rhode Island, North Atlantic Right Whale Consortium (NARWC), the Ocean Biogeographic Information System (OBIS), and in the habitat-based cetacean density models developed by the Marine Geospatial Ecology Laboratory at Duke University.
Data collected during these flights is used to better understand right whale’s habitat usage, monitor the population, and in modelling their behavior. Scientists also use CMARI’s photographic information to monitor health assessment in short and long-term studies relating to injury and entanglement events.
“Since data has been opportunistically collected in this region in recent years, more consistent coverage and information will aid in assisting better modeling, demographic usage and susceptibility to anthropogenic threats,” said White.
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SOURCE Clearwater Marine Aquarium