Sentences with phrase «plankton abundance»

For example, the warm - water phase of ENSO is associated with large - scale changes in plankton abundance and associated impacts on food webs (Hays et al., 2005), and changes to behaviour (Lusseau et al., 2004), sex ratio (Vergani et al., 2004) and feeding and diet (Piatkowski et al., 2002) of marine mammals.

The most important changes in plankton abundance arise from upwelling.

Or does the community just ignore the Bass River record entirely because plankton abundance and / or sedimentation could have been temporarily and drastically disrupted at this site in response to the environmental effects of the PETM?

With warmer equatorial waters reducing plankton abundance and spurring many fish species, notably bigeye and skipjack tuna, to migrate toward the poles, the waters around Wake and Johnston, 1600 kilometers north of the equator, «are precisely where you want to have a protected area,» says Robert Richmond of the University of Hawaii at Mānoa.

They reported this finding in July after analyzing 50 - plus years of data on light penetration of the ocean surface and plankton abundance in water samples.

Not exact matches

Satellite images as well as maps of chlorophyll abundance appear to show that the iron did indeed fuel a plankton bloom in August.

A wet suit (provided to you) may be required while snorkeling during those months, but the upside of colder water is that the cold current brings in huge quantities of plankton, which attract hungry marine life in abundance.

Elsewhere in the oceans, the environmental changes during the PETM led to shifts in the distribution of plankton groups, with tropical species invading the high latitudes and high - latitude species dwindling in abundance.

They need abundant amounts of fish and plankton and krill and so on so it is necessary for them to not only find this abundance but to «farm» it.

The change was measured using the orbiting SeaWiFS instrument, which can measure the abundance of plankton by tracking color differences in sea water.

Other aspects of global warming's broad footprint on the world's ecosystems include changes in the abundance of more than 80 percent of the thousands of species included in population studies; major poleward shifts in living ranges as warm regions become hot, and cold regions become warmer; major increases (in the south) and decreases (in the north) of the abundance of plankton, which forms the critical base of the ocean's food chain; the transformation of previously innocuous insect species like the Aspen leaf miner into pests that have damaged millions of acres of forest; and an increase in the range and abundance of human pathogens like the cholera - causing bacteria Vibrio, the mosquito - borne dengue virus, and the ticks that carry Lyme disease - causing bacteria.

If our climate continues to warm at today's rate, scientists expect North Sea plankton that respond to temperature cues to bloom even earlier in the coming decades.7 With a growing mismatch in life cycles among various species of plankton, as well as further climate - induced shifts in their abundance and distribution, effects on the North Sea ecosystem — including cod — are projected to be considerable.7, 8

Marine mammals, birds, cetaceans and pinnipeds (seals, sea lions and walruses), which feed mainly on plankton, fish and squid, are vulnerable to climate change - driven changes in prey distribution, abundance and community composition in response to climatic factors (Learmonth et al., 2006).