Sentence examples for catfish population from inspiring English sources

The piranha weighed 2 pounds 3 ounces, said Mr. Crabbe, who suspected that piranhas might have something to do with a recent drop in the pond's catfish population.

It may provide an indication of aquatic pollution load of deltamethrin in the affected catfish population, so help in the diagnosis of the pollution.

The harvesting area is created when the 2 tractors reach the opposite end of the pond and start converging to close the net around the catfish, which may number from 50,000 to 100,000, depending on the pond's size and catfish population, and how large the mesh is.

They fear the noodlers' taste for big, spawning specimens could harm catfish populations.

Improvement of disease resistance in catfish populations depends on an understanding of the genetic control of immune-related pathways, response to pathogens, and correlations with other production traits.

A panel of 192 samples were used for genotyping and validation of SNPs including 66 fish from our interspecific mapping resource family F1-2 × Channel catfish-6 (64 backcross progenies plus their two parents), and 21 fish each from three wild channel catfish populations and three domestic channel catfish populations [ 37].

Nevertheless, a low cyp17a1 mRNA expression was also reported in female fat head minnow close to full sexual maturity [ 68] and in two catfish populations, cyp17 mRNA level was shown to decrease throughout the period of spawning [ 55].

The noodler's score means one less big catfish in the population and leaves those eggs vulnerable to other predators.

In the present study, we employed the functional imaging technique Arc catFISH to distinguish neuronal populations activated by a behavioral experience with the CS and US.

PCB-based advisories typically promote reducing intake of large lipid-rich fish, such as freshwater salmon, trout, carp, and catfish; members of sensitive populations are advised to trim fatty areas before consumption as well as to avoid fish roe, due to high partitioning of PCBs into these tissues.

Thus by using the subcellular distribution of Arc mRNA, catFISH analysis can mark neuronal populations engaged by the CS, the US, and the pairing of the two stimuli during fear learning.