I am assuming that the question refers to the rivers of the central USA, where bighead carp and its close relative the silver carp have reached extremely high abundances in the last ten years, and where these fish are considered a nuisance. This question has no good answer, because there has never been a reliable population estimate of any fish of any species in any really large river system. It is not possible with traditional fisheries science methods to get arrive at an estimate of the actual number of fish. Capture-recapture methods that are used on more finite systems that are less variable over time and space just don't work on large rivers, for a variety of complex statistical reasons. In large rivers, fisheries biologists use "catch per unit effort" (CPUE) to determine how populations change over time. Using similar methods year after year, if the catch increases (and other conditions are reasonably similar) you can reliably conclude that the population has increased. In the case of bighead and silver carp, CPUE in the Mississippi and Illinois river increased dramatically -by orders of magnitude- in the 1990s and early 2000s. But anyone that tells you an actual number of fish just does not know what he is talking about.
A bighead carp is any of the species of the genus Hypophthalmichthys, especially Hypophthalmichthys nobilis, the species which reaches the largest size, and is found in East Asia.
to verify that no DNA has contaminated the gel
The group of fish collectively referred to as "Asian carp" are actually made up of four distinct species: the Bighead Carp, the Black Carp, the Grass Carp and the Silver Carp. According to the US Department of Agriculture, the Grass Carp was the first to reach American waterways in 1963. This was followed by the introduction of the Black Carp in the early 1970's, the Bighead Carp in 1972 and finally the Silver Carp in 1973.
All fish are cold blooded.
The carp we commonly refer to when using that name are the common carp, the grass carp, the bighead carp, the silver carp and the Crucian carp. Certainly there are other fish is this very large family. You may recognize koi as carp, and there are many other members of this group of fish. A full list of them would number in three digits.
to see if samples contain the target DNA
Most fish that have the word chub in their common name are members of the Cyprinidae family or minnow family, which carp (common, bighead, silver, grass, and many others) belong to as well. So the answer is yes.
They say smoked that they are better than SalmonWhen cooked, the meat of bighead and silver carp is firm, very mild andslightly sweet. It readily absorbs spices and marinades, but is also greatwhen used in a classic fish fry. Try Asian carp using these or other recipes
The Bighead was created in 1997.
Aristichthys nobilis or bighead carp. It is a freshwater fish, one of several Asian carps.It has a large, scaleless head, a large mouth, and eyes located very low on the head. They are primarily filter-feeders that feed on zooplankton, phytoplankton, and detritus. Bighead carp are native to Eastern Asia and has been introduced to numerous countries worldwide (in the Philippines, during the Marcos era) due to its value as food.
Bev Bighead was created in 1993.
Ed Bighead was created in 1993.