Featured Research

from universities, journals, and other organizations

Fish On Acid: Hagfish Cope With High Levels Of Carbon Dioxide

Date:
April 8, 2006
Source:
Society for Experimental Biology
Summary:
The Pacific Hagfish is a strange animal: it feeds by gnawing its way into a carcass and staying inside it to feed for long periods of time. Dan Baker from the University of British Columbia (Canada) will demonstrate how these unusual fish can cope with an increase in acidity caused by conditions of up to 350 times the normal CO2 level found in air.

The Pacific Hagfish is a strange animal: it feeds by gnawing its way into a carcass and staying inside to feed for up to 3 days.

Scientists at the University of British Columbia (Canada) believe the Hagfish's gruesome method of feeding may cause the stagnant water inside the carcass to become acidic from the build up of CO2 produced by the fish, which could explain why the fish is able to cope with environmental conditions of up to 7% CO2 (350 times that found in normal air).Dan Baker is presenting his latest findings at the Society for Experimental Biology Annual Meeting (April 5).

"Our results are exciting because it turns out that Hagfish can not only regulate their acid-base balance, but that they have a greater capacity for rapid pH compensation than any marine or fresh water fish studied to date", explains Baker.

Just as cold-blooded animals have an equal body temperature to their surrounding environment, the Hagfish has the same concentration of salt in its blood as the surrounding seawater. This trait previously led scientists to believe that these fish (known as osmoconformers) could only poorly regulate their pH.

The scientists next want to find the mechanisms by which they do this, and if prolonged exposure to high levels of CO2 causes any long term effects.



Story Source:

The above story is based on materials provided by Society for Experimental Biology. Note: Materials may be edited for content and length.


Cite This Page:

Society for Experimental Biology. "Fish On Acid: Hagfish Cope With High Levels Of Carbon Dioxide." ScienceDaily. ScienceDaily, 8 April 2006. <www.sciencedaily.com/releases/2006/04/060408235355.htm>.
Society for Experimental Biology. (2006, April 8). Fish On Acid: Hagfish Cope With High Levels Of Carbon Dioxide. ScienceDaily. Retrieved October 21, 2014 from www.sciencedaily.com/releases/2006/04/060408235355.htm
Society for Experimental Biology. "Fish On Acid: Hagfish Cope With High Levels Of Carbon Dioxide." ScienceDaily. www.sciencedaily.com/releases/2006/04/060408235355.htm (accessed October 21, 2014).

Share This



More Plants & Animals News

Tuesday, October 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

White Lion Cubs Born in Belgrade Zoo

White Lion Cubs Born in Belgrade Zoo

AFP (Oct. 20, 2014) Two white lion cubs, an extremely rare subspecies of the African lion, were recently born at Belgrade Zoo. They are being bottle fed by zoo keepers after they were rejected by their mother after birth. Duration: 00:42 Video provided by AFP
Powered by NewsLook.com
Traditional Farming Methods Gaining Ground in Mali

Traditional Farming Methods Gaining Ground in Mali

AFP (Oct. 20, 2014) He is leading a one man agricultural revolution in Mali - Oumar Diatabe uses traditional farming methods to get the most out of his land and is teaching others across the country how to do the same. Duration: 01:44 Video provided by AFP
Powered by NewsLook.com
Goliath Spider Will Give You Nightmares

Goliath Spider Will Give You Nightmares

Buzz60 (Oct. 20, 2014) An entomologist stumbled upon a South American Goliath Birdeater. With a name like that, you know it's a terrifying creepy crawler. Sean Dowling (@SeanDowlingTV) has the details. Video provided by Buzz60
Powered by NewsLook.com
Adorable Video of Baby Rhino and Lamb Friend Playing

Adorable Video of Baby Rhino and Lamb Friend Playing

Buzz60 (Oct. 20, 2014) Gertjie the Rhino and Lammie the Lamb are teaching the world about animal conservation and friendship. TC Newman (@PurpleTCNewman) has the adorable video! Video provided by Buzz60
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