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A metaphase cell positive for the bcr/abl rearrangement (associated with chronic myelogenous leukemia) using FISH. The chromosomes can be seen in blue. The chromosome that is labeled with green and red spots (upper left) is the one where the rearrangement is present. Fluorescence in situ hybridization ( FISH) is a molecular cytogenetic ...
Electrofishing. Scientists carrying out a population and species survey using electrofishing equipment. Electrofishing is a fishing technique that uses direct current electricity flowing between a submerged cathode and anode. This affects the movements of nearby fish so that they swim toward the anode, where they can be caught or stunned.
-ectomy : surgical removal (see List of -ectomies). The term 'resection' is also used, especially when referring to a tumor.-opsy : looking at-oscopy : viewing of, normally with a scope-ostomy or -stomy : surgically creating a hole (a new "mouth" or "stoma", from the Greek στόμα (stóma), meaning "body", see List of -ostomies)
The term fish processing refers to the processes associated with fish and fish products between the time fish are caught or harvested, and the time the final product is delivered to the customer. Although the term refers specifically to fish, in practice it is extended to cover any aquatic organisms harvested for commercial purposes, whether ...
Age determination in fish. Removing an otolith from a red snapper to determine its age. Knowledge of fish age characteristics is necessary for stock assessments, and to develop management or conservation plans. Size is generally associated with age; however, there are variations in size at any particular age for most fish species making it ...
In situ hybridization (ISH) is a type of hybridization that uses a labeled complementary DNA, RNA or modified nucleic acid strand (i.e., a probe) to localize a specific DNA or RNA sequence in a portion or section of tissue ( in situ) or if the tissue is small enough (e.g., plant seeds, Drosophila embryos), in the entire tissue (whole mount ISH ...
Zebra danios are another species that thrive in schools, with Aqueon advising that owners keep them in groups of six or more. Keep in mind that these active fish are known to jump out of the water ...
Pool-and-weir fish ladder at Bonneville Dam on the Columbia River Drone video of a fish way in Estonia, on the river Jägala FERC Fish Ladder Safety Sign. A fish ladder, also known as a fishway, fish pass, fish steps, or fish cannon, is a structure on or around artificial and natural barriers (such as dams, locks and waterfalls) to facilitate diadromous fishes' natural migration as well as ...