Maryland Angler's Log - Share Your Catch!
To post a report please email your name, hometown, photos, location information, and the content for your report to email@example.com. All information is optional, but encouraged.
Important Note: If anyone in your picture is under 18 years of age, we must have a photo release signed by a parent/guardian before we can post your picture. By sending any photos or art to the Maryland Department of Natural Resources you are giving DNR permission to use the image(s) online and in print. You are also giving DNR permission to distribute the photo for non-commercial purposes to other media, print, digital and television for their use. You are not giving up your copyright, but are allowing the photo(s) to be used for educational and news purposes. All Photos will be made available on Fisheries Service Flickr Page.
The Snakehead Contest is being incorporated into an Inland Freshwater Survey on the Volunteer Angler Creel Survey webpage. For 2013 the end-of-year random drawing will include anglers reporting snakeheads to the Anglers Log as well as anglers participating in the Volunteer Angler Creel Surveys. We encourage anglers to continue to report snakehead catches. The information is helping our biologists better understand how this invasive species increases its range.
Andrew Sutton, Recreational Angler
- Total Reports: 1
- View all reports by Andrew Sutton →
Posted on March 14, 2013 | Permalink
Parasitic Worms in Yellow Perch
Region: Bay Wide
Q: I had a great day catching some yellow perch after a long day of work. Brought four keepers home. A buddy mentioned something about yellow perch having worms in their meat. Is there truth to this? And if so, are they harmful for consumption? Can they be cooked out? Thanks, any insight is appreciated.
A: I don't know about current conditions, but yellow perch and just about any other species of fish are susceptible to parasitic worms. Usually called "black spot or white spot" disease in fish, the worms are one stage in the life cycle of a parasite group known as digenetic trematodes. This group goes through a complex life cycle involving an invertebrate, a fish and an aquatic bird as hosts. The stage found in fish can be numerous at times and give a an unpleasant appearance. However, they do not pose a risk to humans. We do recommend that anglers avoid eating fish with any lesions. However, some anglers carve out the "spots" or worms from the fillet if there are not too many.
Also check out this Angler's Log post by Keith Lockwood.
Keith Lockwood, Fisheries Biologist
- Oxford, MD
- Total Reports: 39
- View all reports by Keith Lockwood →
Posted on March 6, 2012 | Permalink
Inquiry on Parasitic Worm in Yellow Perch
Location: Tidal and Nontidal Waters
Mike Hohm recently sent in the picture below of some strange red worms he found in a yellow perch he was cleaning. The red worms in the picture are called Philometra worms that are a common parasitic nematode worm in fish. A small larval stage of the worm is released into the water by infected fish and this small larval stage is eaten by tiny copepods (a small invertebrate) which act as an intermediate host. The copepods are then eaten by fish and the larval stage of the worm is released into the digestive system of the fish. Once in the fish the larvae migrate to target organs and molt into adults where they can become encysted in the viscera (guts) or muscle of the fish. They may grow as long as 2” in length and often move out of the cysts when the fish is dead and can be found free in the body cavity or flesh when the fish is being cleaned by a fisherman. The life cycle of these worms is not well documented but they are a common parasite in freshwater and estuarine fish such as striped bass, perch and other species such as minnows. They can not infect humans and as with all parasites cooking kills them.