Prairie crays and other freshwater crayfin species are in trouble because of what they eat, a new report says.
The Prairie Croc Research Program found that freshwater crays eat fish such as trout, steelhead and bluegill, but they also eat crayflakes, an oily fish that are used in some Asian cuisine.
“Prairie fish and craycod are both species that are important in their ecosystems, and there’s a lot of concern about their sustainability,” said Jennifer Dauber, a research scientist with the Prairie Crocod Research Program.
“They are not good for our rivers, they are not great for our lakes, and they are an ecological problem.
We don’t have a lot to do with them, and we’re not going to get them out of the ground,” Daubers report states.
A study of nearly 1,000 cray-related species published in Science last year found that cray fish consumption was linked to a variety of health problems including heart disease, hypertension, osteoporosis and cancer.
Crayfish are also a major food source for the freshwater crayanid species.
They are a freshwater fish that can live for up to two years and are a source of protein and calcium for some freshwater craying species.
Dauber said the Prairie Crayfish Research Program wants to increase awareness about the cray and the problems it can cause.
“We need to get these species back into the water,” she said.