Now that the season has arrived when we spend more time on and around the water, it’s time to participate in a citizen science project called DolphinWatch.
An undertaking of the University of Maryland Center for Environmental Science, DolphinWatch asks people to report dolphin sightings in the Chesapeake Bay and tidal rivers, and to upload photos and videos to help verify sightings. The data are used to answer the questions of why dolphins visit the Chesapeake Bay, where they go, and how long they stay.
In 2017, Helen Bailey, PhD, associate research professor at the Chesapeake Biological Laboratory, started the research program into the behavior of bottlenose dolphins in the Chesapeake Bay. She and her team at CBL developed an app that allows members of the public to report dolphin sightings in real time. Over 7,500 citizen scientists have joined the effort to study these interesting creatures.
Everyone loves dolphins. They have long been studied to determine just how intelligent they are. They communicate with each other through pulsed sounds, whistles, and body language such as leaping out of the water and butting heads. They use tools, transmit knowledge from generation to generation, and interact with humans. They have been trained to perform specific work tasks and to entertain us.
Bottlenose dolphins are not endangered, but there are threats to their existence. Millions of them drown each year in fishing nets, especially tuna nets. Climate change may well have an effect on dolphin populations, and toxic chemicals and metal contaminants are hazards. In U.S. waters, the Marine Mammal Protection Act of 1972 prohibits hunting and harassing of marine mammals, including dolphins.
Dolphins frequent different parts of the Bay at different times of the year:
Once downloaded, the app is simple to use to report dolphin sightings:
In 2020, 989 sightings were reported; 728 (74%) were confirmed in a quality check. This represents a lot of data contributed to the research effort!
Besides collecting the data from the public on dolphin sightings, the team uses a variety of other research techniques, including underwater recording devices and computer analysis, water sampling, and aerial surveys.
The DolphinWatch website has lots of information about the research and findings since the project started in 2017, including audio recordings, photos, videos, maps, graphs, instructions for using the app, and a factsheet. A scientific paper will be published this summer.
Participating in DolphinWatch is a great way to be a citizen scientist and contribute to the valuable research being done here on the Chesapeake Bay.
Sources:
DolphinWatch, University of Maryland Center for Environmental Science.
https://www.umces.edu/dolphinwatch
“Members of the public inform bottlenose dolphin research in the Chesapeake Bay,” Chesapeake DolphinWatch, UMCES, CBL.
https://www.umces.edu/sites/default/files/2017-2020%20DolphinWatch%20factsheet%20v11May2021_0.pdf
Wikipedia, Bottlenose Dolphins
https://en.wikipedia.org/wiki/Bottlenose_dolphin
Jan Plotczyk spent 25 years as a survey and education statistician with the federal government, at the Census Bureau and the National Center for Education Statistics. She retired to Rock Hall.
Title image: Pond at Pickering Creek Audubon Center, Talbot Co. Photo: Jan Plotczyk