Sentences with phrase «up marine food chains»

We've also recently learned microplastic is working its way up the marine food chain.

Not exact matches

The bears had previously gobbled up to 75 percent of the salmon population each year; researchers believe the change will have broad consequences, including increased salmon numbers disrupting the marine food chain.

One reservoir for resistance genes where they can be exchanged among bacteria — and possibly end up in the food chain — is the sediment in marine fish farms even when no antibiotics have been applied.

This toxic compound accumulates up the aquatic food chain and is often concentrated at high levels in fish, shellfish and marine mammals — and ultimately in the people who eat them.

These pollutants bioaccumulate in the tissues of marine organisms, biomagnify up the food chain, and find their way into the foods we eat.»

Phytoplankton play key roles in several chemical and nutrient cycles, including taking up carbon dioxide from the atmosphere and either cycling it through food chains or sequestering it in the deep sea, says marine ecologist David Hutchins of the University of Southern California in Los Angeles, who wasn't involved in the current study.

As toxins move higher up in the food chain, from invertebrates to fish to marine mammals, they become more concentrated.

Now a team of researchers from MIT, the University of Alabama, and elsewhere has found that such increased ocean acidification will dramatically affect global populations of phytoplankton — microorganisms on the ocean surface that make up the base of the marine food chain.

That plastic can then move up the food chain as seabirds, seals and other marine predators eat those fish.

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But single - use plastics, which you use for a few minutes and then discard, have created a major pollution problem - our ocean is filling up with plastic trash, choking fish and marine life and even entering the human food chain.

«It could stimulate growth of plankton at the base of the food web, which could impact birds, fish and marine mammals higher up the food chain,» said Dr Hawkings.

This could lead to a drop in the number of marine plants, which could have knock - on effects further up the food chain.

Of far greater concern than corals in particular is the ocean food chain in general, because while acidification will probably result in more oceanic dead zones as the amount of CO2 goes up and the amount of oxygen falls, if you kill off the plankton and pteropods that use carbonate to make their shells, then you kill off the food supply for the vast majority of higher organisms (like mollusks, fish, and even marine mammals).