Females produce 4,000 to 8,000 eggs per kilogram of body weight—so a 10-pound fish could produce more than 20,000 eggs. Robert Fisher (Virginia Institute of Marine Science, Virginia Sea Grant ) Maternal consumption, during pregnancy and breastfeeding, of at least 8 ounces (two servings) per week of seafood that contains DHA is associated with better infant health outcomes. Blue Catfish leviathans lurking in the river! Invasive Catfish in the Chesapeake Bay. Catches in the Virginia section of the Bay have also skyrocketed, the Chesapeake Bay Journal reports, reaching over 1.2 million pounds in 2014, up from just 150,328 pounds in 2010. But they can tolerate water that is not completely fresh. The purpose of this program is to create sales of Blue Catfish to state institutions providing food services and help reduce the Blue Catfish’s negative impact on the Potomac River and Chesapeake Bay ecosystems by creating a reliable market for the nonnative species. The massive fish, hooked last week on the Chattahoochee River, is the largest ever blue catfish caught in Georgia, the state’s Department of Natural Resources said Tuesday. The blue catfish (Ictalurus furcatus) is the largest species of North American catfish, reaching a length of 165 cm (65 in) and a weight of 68 kg (150 lb).The typical length is about 25–46 in (64–117 cm). Jurisdictions that manage fisheries in the Chesapeake Bay work together to discuss the latest fisheries science and coordinate their regulations through the Chesapeake Bay Program. Blue Catfish has a slate blue body with smooth skin, a silver-white belly and four pairs of black, whisker-like barbels around its mouth. The main product is whole fillet. Blue catfish are a tasty and nutritious fish, so the Management Strategy recommends that the Chesapeake Bay states focus on developing and expanding commercial fisheries for blue catfish. While blue catfish are offered for sale to the public at many stores and markets, the fishery is still developing. Freshwater Catfish vs Saltwater Catfish. 2015–2020 Dietary Guidelines for Americans. The Blue Catfish are native to the Mississippi, Missouri, and Ohio river drainages but were introduced in the James, York, and Rappahannock rivers to establish recreational fisheries Blue Catfish to spread throughout the inland waters and its tributaries of Chesapeake Bay. Non-native Blue Catfish It is illegal to transport them from one body of water to another. The channel catfish can appear superficially similar to blue catfish, below. Credit: Ian Vorster/VA Sea Grant If you catch a catfish in Chesapeake Bay, there's a good chance it's an invader from the Mississippi River drainage—probably a blue catfish, though it could be a less common flathead catfish. But in some areas, blue catfish can pose major challenges. There are no current published Bay-wide estimates of Blue Catfish, though it has been reported there may be more than 100 million in the Bay (Tkacik and Dance 2019). Therefore, eating Blue Catfish might just be the tastiest ways to help save the Bay. Chesapeake Bay Blue Catfish is mild and flaky, with a taste similar to striped bass. But a new management plan says that with coordinated action — including ramped-up efforts to get people to develop an appetite for them — … The University of Maryland Extension Seafood Technology Specialist and Family and Consumer Science Educators have worked together to deliver education and demonstration programs to enhance public awareness on food safety and nutrition of invasive Blue Catfish and promote safe consumption. 2017. University programs, activities, and facilities are available to all without regard to race, color, sex, gender identity or expression, sexual orientation, marital status, age, national origin, political affiliation, physical or mental disability, religion, protected veteran status, genetic information, personal appearance, or any other legally protected class. The Chesapeake Bay record is a blue catfish caught in the James River that was 102 pounds. And they "really, really, really like Chesapeake Bay tributaries," he says. This is good for developing the flavor but bad for the ecosystem of our Bay. Luellen, D.R., LaGuardia, M.J., Tuckey, T.D. Guide services in the James and Potomac rivers run expeditions that target blue catfish. A distinguishing feature of the blue catfish is that the anal fin margin, or edge, is straight as if it has been clipped with scissors. But in some areas, blue catfish can pose major challenges. Blue Catfish (Ictalurus furcatus) Blue Catfish are long and often slender with a deeply forked tail. Chesapeake Bay Blue Catfish products prepared for distribution in commerce for use as human food are routinely inspected by the USDA Food Safety and Inspection Service (FSIS) under the Federal Meat Inspection Act (USDA, 2018). Babyboomers who burned their bras and smoked pot to Jimi Hendrix in the 60s & early 70s got a hair cut, a decent job, grew up and started to settle down and make Gen-Y babies. The information presented has met UME peer review standards, including internal and external technical review. Why are they so delicious? 06/07/2019. It was thought that these fish only lived in very fresh water. While adults usually grow to be less than 2 feet long, they can grow to be 5 feet long and weigh more than 100 pounds. They have been documented interfering with gill net fisheries, such as striped bass. They grow large and eat many native species, so they have the potential to cause a lot of harm to the Chesapeake Bay ecosystem. They are tasty and nutritious. Therefore, consuming EPA and DHA directly from seafood is the only practical way to increase levels of these fatty acids in the body. Regional and national tournaments are held annually on the James River, and the Potomac River is nearly a year-round hotspot for catfish angling. Adults usually grow to be less than two feet long but can be up to five feet and weigh more than 100 pounds. 2008, Geneva. It has a slate blue body, a silver-white belly and four pairs of black, whisker-like barbels around its mouth. Its smooth skin lacks scales. Since then, they have reached numbers beyond what anyone imagined in rivers from the James to the Potomac, and they had begun spreading to … How it succeeded! Schloesser, R.W., Fabrizio, M. C., Latour, R. J. et al. Blue Catfish is an invasive fish species in the Chesapeake Bay but increasing commercial harvest and consumption is one way to reduce their numbers. Maryland Department of Natural Resources. Even though they prefer fresh water, Blue Catfish can tolerate brackish waters of the Chesapeake Bay river estuaries with salinities up to 15 ppt (parts per thousand). This will result in greater numbers of catfish harvested from the system and available for processing market and consumers. Are Commercially Harvested Chesapeake Bay Blue Catfish Safe to Eat? In the early 2000s, commercial fishing interest in blue catfish was low due to low market demand and lack of consumer awareness of the fish. Blue catfish have a flat dorsal fin and a deeply forked tail. They are bottom-dwellers that prefer large rivers with deep channels, swift currents, and sandy bottoms. “An extreme concern for me is the predation on crabs from the blue catfish,” says this Maryland native. National Institute of Health (NIH, 2019). Copyright © 2004 - 2021 Virginia Seafood and Virginia Marine Products Board. Older and larger fish can accumulate higher levels of PCBs and methyl-mercury chemical contaminants. extension.umd.edu. Electrofishing efforts have caught upwards of 6,000 fish in an hour. Catfish fillets are typically breaded and fried although a number of recipes exist. They croak like pigs. Luellen et al (2018) analyzed mercury and PCBs levels for a total of 116 individual Chesapeake Bay Blue Catfish samples (31 from the James River and 44 from the Rappahannock River in VA, and 41 from the Potomac River in MD). For the general population, consumption of about 8 The fish can live to 20 years. Credit: Chesapeake Bay Program. This fact sheet aims to enhance public awareness of this invasive species as a new commercial fishery resource. Newport News, VA 23608, Phone: (757) 874-3474 Blue catfish were introduced to a few rivers in the Chesapeake Bay watershed decades ago. They grow big and ugly and gray. Throughout many areas of the tidal Potomac and the James, you can spend many hours catching “little” cats, that is fish that run from five to almost 20 pounds, and either keep some for a meal or do the total catch and release gig. Blue catfish have four pairs of black whisker-like barbels around their mouths. As a wild product, there is some variation in size; normal size being 8 to 14 ounce fillet. For more information, visit the National Institute of Health (NIH)’s website: https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/, Even though another omega-3 alpha-linolenic acid (ALA) present in plant oils, such as flaxseed, soybean, and canola oils, can be converted into EPA and then to DHA, the conversion is very limited (≤15%). et al. Based on those results, the researchers estimated what the potential predation by blue catfish might have been during spring 2012 in two specific locations. Available at: https://dnr.maryland.gov/fisheries/Documents/Invasive_Catfish_%20Fact_Sheet.pdf Increasing commercial harvest and consumption of Chesapeake Bay Blue Catfish is one way to reduce numbers of this invasive fish in our Bay. Fax: (757) 886-0671, Problem displaying Facebook posts.Click to show errorfunction cffShowError() { document.getElementById("cff-error-reason").style.display = "block"; document.getElementById("cff-show-error").style.display = "none"; }. Assessment of legacy and emerging contaminants in an introduced catfish and implications for the fishery. https://doi.org/10.1007/s12237-017-0307-1 They found that blue catfish ate a wide variety of species, including many of management concern such as blue crabs, blueback herring, American shad, softshell clams, menhaden and white perch. extension.umd.edu. Available at: https://ods.od.nih.gov/factsheets/Omega3FattyAcids-HealthProfessional/ Omega-3 fats enhance infant brain development and health outcomes. Fishermen are catching more Blue Catfish and selling them to seafood grocery stores, as well as to restaurants. They are among the preferred prey of osprey and bald eagles. States in the Chesapeake Bay watershed are working together to encourage recreational fishing for these catfish—and to develop and grow a commercial fishery as well. The blue catfish is a long fish with a flat dorsal fin and deeply forked tail. While recreational fishermen have targeted blue catfish for decades in the Chesapeake Bay, development of a commercial fishery management plan is relatively new. Anglers will have the best results fishing when water levels are low, and the river is within its banks. The Invasive Catfish Workgroup of the Chesapeake Bay Program’s Sustainable Fisheries Goal Implementation Team has developed an Invasive Catfish Management Strategy (PDF, 21 pages) to provide collaborative guidance on how Chesapeake states will manage this resource. Available at http://health.gov/dietaryguidelines/2015/guidelines/. NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, Report a Stranded or Injured Marine Animal. Now keep in mind that there are many different types of catfish depending on where in the world you are reading this. For help accessing this or any UME publication contact: itaccessibility@umd.edu, For more information on this and other topics, visit the University of Maryland Extension website at extension.umd.edu. The Blue Catfish has become an invasive species in the Chesapeake Bay because they are voraciously opportunistic predators that daily consume between 8-9% of their body weight (CBP, 2017). They have eight sensory barbels or … As part of a healthy diet, eating fish and other seafood offer heart health benefits and lower the risk of obesity. Growing Numbers of Blue Catfish Raised Concerns about Potential Negative Impacts on Native Species in Chesapeake Bay Ecosystems. State natural resource managers know blue catfish have had an adverse impact on the bay ever since the fish were introduced to the James, Rappahannock and York Rivers during the 1970s and 1980s. He argues that the lure of trophy blue catfish has drawn hundreds of people to the river, but once there, many have become even more interested in the health of its waters, its bald eagles, its ospreys, its great blue herons, and even its small but growing stock of Atlantic sturgeon. According to a recent study (Fisher, 2020), Chesapeake Bay Blue Catfish fillets contain 19g of high-quality protein per serving (4 oz) with only 1.5g of fat. They lower the risk of obesity. ounces per week of a variety of seafood, which help provide a minimum recommended consumption of 250 mg per day of EPA and DHA, is associated with reduced cardiac deaths among individuals with and without preexisting cardiovascular disease (WHO, 2008; USDHH and USDA, 2015). U.S. Department of Agriculture (USDA, 2018). Blue catfish are highly productive and create high numbers of offspring each reproductive cycle. This allows them to move throughout different parts of the Chesapeake Bay where they interact with commercial and ecological important species. Blue catfish are apex predators of Chesapeake tributaries; they are opportunistic and generalist predators, feeding on important native fish such as menhaden, shad, river herring, as well as blue crabs, plants, and insects. These results confirm that the methyl mercury and PCBs levels of Chesapeake Bay Blue Catfish (15-36 inches long) are much lower than the FDA and EPA Safety Levels in Regulations and Guidance for commercial seafood (FDA, 2020). For chemical contaminants such as polychlorinated biphenyls (PCBs) and methyl mercury, source control is the only way to reduce the associated risks since these chemical contaminants are heat stable and may not be destroyed through heating, refrigerating or freezing. The Blue Catfish has become an invasive species in the Chesapeake Bay because they are voraciously opportunistic predators that daily consume between 8-9% of their body weight (CBP, 2017). Tkacik C. and Dance S. (2019): As blue catfish multiply in Chesapeake Bay, watermen pursue new catch — and restaurants offer new delicacy. (2011). Blue catfish are currently available for sale to the public in many food outlets. Its smooth skin lacks scales. There is an amazing variety of catfish to be found, both farm-raised and wild. Blue catfish are landed commercially using a variety of nets, impoundments, and traps. They spawn once a year from late May into June, mostly in lower-salinity streams and smaller tributaries. Ecological Role of Blue Catfish in Chesapeake Bay Communities and Implications for Management and Implications for Management. There is minimal bycatch. The following are some of the important native species in Chesapeake Bay that Blue Catfish eat. Channel cats make good table fare, especially in the spring and fall. How Can You Help? Chesapeake Bay Program (CBP, 2017). extension.umd.edu In the Chesapeake Bay watershed, channel catfish reach weights of 10 pounds or more, although 2-3 pound fish are more common. Blue Catfish (Ictalurus furcatus) is the Largest Species of Catfish in North America 2020-8 and VSG-20-30. Chesapeake Bay Blue Catfish: Invasive, but Delicious and Nutritious! The Chesapeake Bay Program recently released its Invasive Catfish Management Strategy (PDF, 21 pages) to guide the management of blue catfish in the Bay, and an Invasive Catfish Workgroup meets frequently as well. Many anglers like fishing for blue catfish because they are strong, savvy fish that are a good challenge. Blue Catfish of the Chesapeake Bay, on the other hand, are wild and feed on fish and shellfish. Acknowledgement: The authors would like to thank Joe Love and Mary Groves (MDNR), Charles Poukish, Amy Laliberte and Kathy Brohawn (MDE), Weida Stoecker and Stone Slade (MDA), Mike Hutt (VMPB), and Laurie Arnold (UME) for their help including comments, suggestions and edits. An estimated 7,265 pounds of blue catfish were served on campus during the fall 2019 semester. Koi (鯉, English: / ˈ k ɔɪ /, Japanese: ) or more specifically nishikigoi (錦鯉, [ɲiɕi̥kiꜜɡoi], literally "brocaded carp"), are colored varieties of the Amur carp (Cyprinus rubrofuscus) that are kept for decorative purposes in outdoor koi ponds or water gardens.. Koi is an informal name for the colored variants of C. rubrofuscus kept for ornamental purposes. Why Are They Invasive? Recreational fishermen in other areas, particularly those where blue catfish are native, also enjoy angling for these fish. The numerous small lakes along the backwaters offer great fishing opportunities offering a variety of species such as bluegill, shellcracker, largemouth bass, hybrid striped bass, and mullet. Fillet portions (3 oz, 4oz, 8oz), whole-fish, gutted or un-gutted are available upon request from buyers. They actively feed on aquatic prey, including other fish (Menhaden, American Shad, White Perch, and River Herring) and shellfish (crabs, clams, and mussels). Blue catfish, which can grow to lengths of 5 feet, were released into Virginia’s Bay tributaries in the 1970s as part of an effort to build a sport fishery. Commercial watermen in Maryland and Virginia harvested more than 5 million pounds of Blue Catfish in 2017 (Jerry Jackson / Baltimore Sun). In 2014, the number of blue catfish caught by commercial fishermen on the Potomac jumped nearly 62 percent, surpassing rockfish catches for the first time.. rfisher@vims.edu, This publication, Chesapeake Bay Blue Catfish: Invasive, but Delicious and Nutritious (FS-1142), is a series of publications of the University of Maryland Extension and the Department of Environment and Natural Resources. The methyl mercury levels in fish fillets ranged from 0.033 ppm to 0.188 ppm and PCBs from 0.012 ppm to 0.071 ppm. Chesapeake Bay Blue Catfish: Invasive, but Delicious and Nutritious! 2011). Available at: https://scholarworks.wm.edu/cgi/viewcontent.cgi?article=1009&context=vimsbooks Estuaries and Coasts 41, 827–840 (2018). University of Maryland Dining Services serves Chesapeake Bay Blue Catfish on campus and includes it in menus and promotions. The fillets have more healthy fats (unsaturated 75%) than unhealthy ones (saturated 25%). These catfish have quickly spread throughout the Chesapeake Bay watershed into nearly every major tributary. Up close and in person, blue catfish are gruesome creatures. In the Chesapeake Bay, blue catfish are a popular recreational fishery. Blue catfish are native to the Mississippi, Missouri, Ohio, and Rio Grande river basins. The Blue Catfish has become an invasive species in the Chesapeake Bay because they are voraciously opportunistic predators that daily consume between 8-9% of their body weight (CBP, 2017). What Forms of Blue Catfish Product Can You Buy? The Blue Catfish is a species in the large taxonomic order Siluriformes. Blue catfish were introduced to a few rivers in the Chesapeake Bay watershed decades ago. Due to lack of awareness among chefs and consumers, local watermen and processors have not been able to use this species at a high enough number to mitigate their impact on other Chesapeake Bay … In 2018 there was an estimated 500 million pounds of blue catfish in the bay. The anal fin is rounded and has fewer rays than the blue catfish, below. Initially introduced within fresh-water habitats, their range has extended into tidal, brackish estuarine habitats, which overlap many valuable commercial and recreational native species, including native white catfish. Because blue catfish—and another invasive fish, the flathead catfish—have the potential to cause substantial harm to the Chesapeake Bay food web, the Chesapeake Bay Program recently developed an. There are many health benefits of Omega-3 fats in fish. In the Chesapeake Bay, blue catfish are considered an invasive species. 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