Featured Research

from universities, journals, and other organizations

Type Of Plankton -- Food Source For Many Fish -- Has Ability To Survive Climate Change

Date:
October 6, 2008
Source:
Queen's University Belfast
Summary:
Researchers have found that the main source of food for many fish -- including cod -- in the North Atlantic appears to adapt in order to survive climate change. Billions of Calanus finmarchicus, a plankton species, which are just a few millimeters in size, live in the waters of the North Atlantic where the research was carried out.

Queen's researchers have found that the main source of food for many fish - including cod - in the North Atlantic appears to adapt in order to survive climate change.

Billions of Calanus finmarchicus, a plankton species, which are just a few millimetres in size, live in the waters of the North Atlantic where the research was carried out.

It showed they responded to global warming after the last Ice Age, around 18,000 years ago, by moving north and maintaining large population sizes and also suggests that these animals might be able to track the current change in habitat.

The effect of global climate change on the planet's ecosystems is one of the key issues scientists are currently focussing on and the research has been published in Proceedings of the Royal Society B, a publication of the national academy of science of the UK and the Commonwealth, today.

One of the main predicted effects of climate change is a forced shift in species' distribution range.

The study leader, Dr Jim Provan, from Queen's School of Biological Sciences, said the discovery that that a species has a feature which helps it cope with global warming is a rare example of good news.

"Our results, in contrast to previous studies, suggest that the species has been able to shift its distribution range in response to previous changes in the Earth's climate, and thus 'track' the effects of climate change, a feature which may be of crucial importance in its survival.

"The genetic variability of the species - the tendency of the genetic make-up of a population to vary from one individual to another - has remained high, which is good news, and suggests that these animals might be able to track the current change in habitat resulting from global warming and maintain viable population sizes.

"If the species couldn't, it might become extinct and thus threaten the fish species that depend upon it for food.

"It might be a rare example of news that may not be doom-and-gloom with respect to climate change, but it doesn't mean that we don't have to keep watching what happens."

Previous work on the species had indicated a serious drop in numbers and decreases in population size may be reflected in decreases in genetic variability.

This can compromise the adaptive potential of the populations for the future and possibly result in extinction.

As a result of the Queen's findings the team is planning further work to see how the study applies to rapid global warming over the last few decades.


Story Source:

The above story is based on materials provided by Queen's University Belfast. Note: Materials may be edited for content and length.


Cite This Page:

Queen's University Belfast. "Type Of Plankton -- Food Source For Many Fish -- Has Ability To Survive Climate Change." ScienceDaily. ScienceDaily, 6 October 2008. <www.sciencedaily.com/releases/2008/09/080924075311.htm>.
Queen's University Belfast. (2008, October 6). Type Of Plankton -- Food Source For Many Fish -- Has Ability To Survive Climate Change. ScienceDaily. Retrieved September 23, 2014 from www.sciencedaily.com/releases/2008/09/080924075311.htm
Queen's University Belfast. "Type Of Plankton -- Food Source For Many Fish -- Has Ability To Survive Climate Change." ScienceDaily. www.sciencedaily.com/releases/2008/09/080924075311.htm (accessed September 23, 2014).

Share This



More Earth & Climate News

Tuesday, September 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Hundreds of Thousands Hit NYC Streets to Protest Climate Change

Hundreds of Thousands Hit NYC Streets to Protest Climate Change

AFP (Sep. 22, 2014) Celebrities, political leaders and the masses rallied in New York and across the globe demanding urgent action on climate change, with organizers saying 600,000 people hit the streets. Duration: 01:19 Video provided by AFP
Powered by NewsLook.com
French FM Urges 'powerful' Response to Global Warming

French FM Urges 'powerful' Response to Global Warming

AFP (Sep. 22, 2014) French Foreign Minister Laurent Fabius on Monday warned about the potential "catastrophe" if global warming was not dealt with in a "powerful" way. Duration: 01:08 Video provided by AFP
Powered by NewsLook.com
Ongoing Drought, Fighting Put Somalia at Risk of Famine

Ongoing Drought, Fighting Put Somalia at Risk of Famine

AFP (Sep. 22, 2014) After a year of poor rains and heavy fighting Somalia is again at risk of famine, just three years after food shortages killed 260,000 people. Duration: 01:10 Video provided by AFP
Powered by NewsLook.com
Rockefeller Oil Heirs Switching To Clean Energy

Rockefeller Oil Heirs Switching To Clean Energy

Newsy (Sep. 22, 2014) The Rockefellers — heirs to an oil fortune that made the family name a symbol of American wealth — are switching from fossil fuels to clean energy. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins