MOLLUSKS
MOLLUSKS
Magnificent Ramshorn Snail Project
by: Emilia Omerberg, Central Region Aquatic Wildlife Diversity Biologist
A new study is underway at Yates Mill Aquatic Conservation Center in Raleigh to study the development of Magnificent Rams- horn snail eggs and embryos. Trials were run at room temperature as well as experimental cold treatments at (a) a constant 4 degrees C and (b) fluctuating outdoor winter temperatures for 2, 4, 8 and 10 weeks’ exposure. Photos of each egg clutch as well as individual eggs were photographed weekly for the duration of the project and measurements will be taken of embryo growth rates, hatch rates, and juvenile survival.
EMILIA OMERBERG/NCWRC
From left to right: Clutch of snail eggs; developing Magnificent Ramshorn inside an egg; another view of developing Magnif- icent Ramshorn inside an egg
Deep River Mussel Propagation by: Emilia Omerberg, Central Region Aquatic Wildlife Diversity Biologist
S taff collected Margined Madtoms, which were transported to the Yates Mill Aquatic Conservation Center in Raleigh. There, the fish will serve as hosts for the glochidia larvae of Brook Floater mussels that were collected from the Deep River in the fall of 2023. The young mus- sels will be grown out for stocking to help boost native mussel populations in the upper Cape Fear River basin.
Brook Floater with glochidia, which look like grains of rice
EMILIA OMERBERG/NCWRC
66 2024 Wildlife Diversity Program Annual Report
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