Posts Tagged ‘food chain’

Small fish facing fateful decline

STANFORD (US) — Overfishing has a detrimental effect on population numbers, whether it’s happening to big fish in a small pond or small fish in a big one. Continue…

Tuesday, May 3, 2011 15:01 - 1 Comment

Science & Technology - Dec 27, 2010 13:01 - 0 Comments

Designer dots could shield food chain

UC SANTA BARBARA (US) — Researchers have for the first time been able to demonstrate how nanoparticles are able to biomagnify in a simple microbial food chain. (more…)

Earth & Environment - Oct 14, 2010 17:13 - 0 Comments

Clues to how food chains grow

YALE (US) — New research helps settle an old debate among ecologists about what determines the length of nature’s food chains, which sustain all life on earth. (more…)

Earth & Environment - Jul 20, 2010 9:16 - 0 Comments

Small fish living it up in dead zone waters

PENN STATE (US)—A small fish is unabashedly exploiting an oxygen-depleted area off the coast of southwest Africa and putting the once ecologically dead-end jellyfish back into the food cycle, according to an international team of scientists. (more…)

Science & Technology - Mar 9, 2010 11:43 - 1 Comment

Tracking mercury’s ‘fingerprint’ in fish

U. MICHIGAN (US)—Scientists know that the primary way methylmercury affects people is through consumption of fish and shellfish. But how does the toxic substance get into species that live in the open ocean? (more…)

Earth & Environment - Aug 25, 2009 4:00 - 0 Comments

Warmer oceans tangle food chain

Dina Leech and Virginia Schutte collect zooplankton from Bogue Sound using a plankton tow net. Plankton from the net were rinsed into a sieve and then added to the experimental microcosms. (Credit: Mary O’Connor/UNC)