What concept describes how contaminants like mercury become more concentrated in certain fish species over time?
Answer
Accumulation up the food chain.
The risk associated with contaminants such as mercury is directly related to the ecological position and longevity of the fish. Mercury is a persistent pollutant that does not break down easily within biological systems. As smaller fish absorb trace amounts of mercury from the water or their diet, larger predators consume many of these smaller, contaminated fish over their extended lifespans. This process results in the mercury concentrating progressively up through the trophic levels, leading to the highest levels found in apex predators that are high on the food chain and live for many years.
#Videos
The truth about oily fish, according to science | Dr. Sarah Berry
Related Questions
What is the primary reason direct oily fish consumption is superior to ALA from flaxseeds?Which body structures are explicitly mentioned as having DHA as a major structural component?What specific blood fat level are EPA and DHA known to help lower, reducing cardiovascular risk?What intake target do major health bodies suggest for oily fish specifically for heart-protective qualities?Which preparation method for oily fish is specifically advised against due to negative nutritional consequences?Why are smaller, shorter-lived species like sardines often recommended over large predators regarding contaminant risk?What critical components of a balanced diet might be missed if one exclusively consumes lean fish like cod or haddock?What is the general recommendation for pregnant or breastfeeding women regarding oily fish consumption?What do cooking methods such as baking, grilling, and poaching aim to achieve when preparing oily fish?What concept describes how contaminants like mercury become more concentrated in certain fish species over time?What effect do EPA and DHA have on the circulatory system besides lowering triglycerides?