Search results
Results from the WOW.Com Content Network
Biotic Ligand Model. The Biotic Ligand Model (BLM) is a tool used in aquatic toxicology that examines the bioavailability of metals in the aquatic environment and the affinity of these metals to accumulate on gill surfaces of organisms. BLM depends on the site-specific water quality including such parameters as pH, hardness, and dissolved ...
Chronic irritation of the gills is the primary cause of gill hyperplasia. Continuous ammonia nitrogen exposure has been found to lead to a substantial increase in cases, [1] as well as exposure to heavy metals, [4] [5] and injury to the gills. Some parasitic, protozoan, and bacterial species may also cause gill hyperplasia.
Fish products have been shown to contain varying amounts of heavy metals, particularly mercury and fat-soluble pollutants from water pollution. Species of fish that are long-lived and high on the food chain, such as marlin, tuna, shark, swordfish, king mackerel and tilefish contain higher concentrations of mercury than others. [4]
Fish gill. Gill arches bearing gills in a pike. Gills allow fish to breathe underwater. Respiratory mechanism in bony fish. The fish draws oxygen-rich water in through the mouth (left). It then pumps it over gills so oxygen enters the bloodstream, and allows oxygen-depleted water to exit through the gill slits (right) Fish gills are organs that ...
A gill (/ ɡɪl / ⓘ) is a respiratory organ that many aquatic organisms use to extract dissolved oxygen from water and to excrete carbon dioxide. The gills of some species, such as hermit crabs, have adapted to allow respiration on land provided they are kept moist. The microscopic structure of a gill presents a large surface area to the ...
“Fish not only offer tons of lean protein, but most fish are high in heart-healthy fats like omega-3s and are also rich in essential minerals like calcium, phosphorus, iron, zinc, iodine, and ...
Overall, the study showed that the remediation efforts here did in fact reduce the amount of heavy metals built up in the fish. [13] Generally speaking, the specific rate of build-up of metals in fish depends on the metal, the fish species, the aquatic environment, the time of year, and fishes' organs. [13]
Fish physiology is the scientific study of how the component parts of fish function together in the living fish. [2] It can be contrasted with fish anatomy, which is the study of the form or morphology of fishes. In practice, fish anatomy and physiology complement each other, the former dealing with the structure of a fish, its organs or ...