Featured Research

from universities, journals, and other organizations

Invasive species underwater: Deep sea animals stowaway on submarines and reach new territory

Date:
May 24, 2012
Source:
Wiley-Blackwell
Summary:
Marine scientists studying life around deep-sea vents have discovered that some hardy species can survive the extreme change in pressure that occurs when a research submersible rises to the surface. Scientists reveal how a species can be inadvertently carried by submersibles to new areas, with potentially damaging effects on marine ecosystems.

This is a photo of Lepetodrilus gordensis, the species recovered from the Alvin submersible.
Credit: Todd Haney

Marine scientists studying life around deep-sea vents have discovered that some hardy species can survive the extreme change in pressure that occurs when a research submersible rises to the surface. The team's findings, published in Conservation Biology, reveal how a species can be inadvertently carried by submersibles to new areas, with potentially damaging effects on marine ecosystems.

After using the manned submersible Alvin to collect samples of species from the Juan de Fuca Ridge under the northeastern Pacific Ocean, the team discovered 38 deep-sea limpets (Lepetodrilus gordensis) among their sample. Intriguingly this species is believed to occur only in the vents of the Gorda Ridge, which are 635 km south of the dive site.

"The big question was, how did they get over 600 kilometers from their habitat?" said Dr. Janet Voight, from the Field Museum of Natural History in Chicago. "We discovered that the individuals must have been transported from the Gorda Ridge by our submersible. Even though we clean the submersibles after sampling we had assumed that the extreme pressure change would kill any species which are missed."

The introduction of new species to an ecosystem by humans, often inadvertently, is a big challenge to conservation. How a new species will react to new surroundings, and the effect it can have, is unpredictable. Increases in deep-sea drilling and submersible activity can increase the probability of introductions, but until now hydrothermal vents have been considered too extreme and too isolated to be a source of introduced species.

In coastal environments one of the biggest threats posed by invasive species to native species is disease, as newly introduced pathogens and parasites can cause mass mortality. Diseases that may exist in the extreme environments created by hydrothermal vents have not been well studied.

"We've discovered that it is possible to accidently introduce a species, and any potential diseases it may carry, from a deep-sea vent to a new location," concluded Voight. "This has implications for the future exploration of hydrothermal vents as it reveals the potential risk of human driven change to the ecosystem."


Story Source:

The above story is based on materials provided by Wiley-Blackwell. Note: Materials may be edited for content and length.


Journal Reference:

  1. Janet R. Voight, Raymond W. Lee, Abigail J. Reft, Amanda E. Bates. Scientific Gear as a Vector for Non-Native Species at Deep-Sea Hydrothermal Vents. Conservation Biology, 2012; DOI: 10.1111/j.1523-1739.2012.01864.x

Cite This Page:

Wiley-Blackwell. "Invasive species underwater: Deep sea animals stowaway on submarines and reach new territory." ScienceDaily. ScienceDaily, 24 May 2012. <www.sciencedaily.com/releases/2012/05/120524092817.htm>.
Wiley-Blackwell. (2012, May 24). Invasive species underwater: Deep sea animals stowaway on submarines and reach new territory. ScienceDaily. Retrieved September 19, 2014 from www.sciencedaily.com/releases/2012/05/120524092817.htm
Wiley-Blackwell. "Invasive species underwater: Deep sea animals stowaway on submarines and reach new territory." ScienceDaily. www.sciencedaily.com/releases/2012/05/120524092817.htm (accessed September 19, 2014).

Share This



More Plants & Animals News

Friday, September 19, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Chocolate Museum Opens in Brussels

Chocolate Museum Opens in Brussels

AFP (Sep. 19, 2014) Considered a "national heritage" in Belgium, chocolate now has a new museum in Brussels. In a former chocolate factory, visitors to the permanent exhibition spaces, workshops and tastings can discover derivatives of the cocoa bean. Duration: 01:00 Video provided by AFP
Powered by NewsLook.com
Could Grief Affect The Immune Systems Of Senior Citizens?

Could Grief Affect The Immune Systems Of Senior Citizens?

Newsy (Sep. 19, 2014) The study found elderly people are much more likely to become susceptible to infection than younger adults going though a similar situation. Video provided by Newsy
Powered by NewsLook.com
Jury Delivers Verdict in Salmonella Trial

Jury Delivers Verdict in Salmonella Trial

AP (Sep. 19, 2014) A federal jury has convicted three people in connection with an outbreak of salmonella poisoning five years ago that sickened hundreds of people and was linked to a number of deaths. (Sept. 19) Video provided by AP
Powered by NewsLook.com
Raw: Elephant Undergoes Surgery in Tbilisi Zoo

Raw: Elephant Undergoes Surgery in Tbilisi Zoo

AP (Sep. 18, 2014) Grand the elephant has successfully undergone surgery to remove a portion of infected tusk at Tbilisi Zoo in Georgia. British veterinary surgeons used an electric drill to extract the infected piece. (Sept. 18) Video provided by AP
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:
from the past week

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