Navigation Links
Habitat of elusive Northern squid documented by researcher
Date:4/7/2010

WINNIPEG, MB -- APRIL 2010 -- New research is shedding light on the preferred habitat of the northern squid, Gonatus fabricii - a key but often overlooked species in Arctic marine food webs.

Squid, along with octopus and bobtail squid (Rossia spp.), play an important role as prey in Arctic waters for species such as narwhal, beluga, seals, cod and Greenland halibut. But, says Kathleen Gardiner, a PhD candidate in the Biological Sciences Department of the University of Manitoba and co-author of a paper in the online edition of Polar Research, little is known about their preferred habitats. Gardiner is remedying that gap by building broad distribution maps using data from other sources.

"I found every reference I could," says Gardiner, who examined international and national databases, museum collections, government reports and published articles.

Identifying the feeding and spawning grounds of squid is of particular importance right now because of the changing climate. The Arctic Ocean is warming and the extent of sea ice is shrinking, exposing more water to light and heat. There are already indications that new species of squid are moving north.

Squid are a high-energy food source for many large marine species. Much of their body mass is liver (digestive glands), which are rich in lipids. A change in the number of squid in Arctic waters could have an impact on species that rely on them as a food source. There is little information available about the temperature tolerance of cephalopods in the Arctic and the relationship to climate change.

Squid can be difficult to track. Some species are quick and can easily out swim fishing gear. Other species are located in very deep water, which makes them difficult to find. Fortunately, there are better data for some that are regularly taken as bycatch by commercial fishers.

"No one knows if populations are up or down. We don't know what abundance levels are in the Canadian Arctic and much of the Arctic Ocean," says Gardiner.

She is hoping her work is the first step toward the development of habitat management policies. "Once we isolate the baseline data and find hot spots, breeding grounds and feeding grounds, we can protect these areas."


'/>"/>

Contact: Ruth Klinkhammer
r.klinkhammer@ucalgary.ca
403-220-7294
Arctic Institute of North America
Source:Eurekalert

Related biology news :

1. Toxoplasma gondii spreads in the habitat of the Iberian lynx
2. From international harbor to native habitat
3. Grizzly bears move into polar bear habitat in Manitoba, Canada
4. Damage to threatened Gulf of California habitats can be reversed
5. Climate change and habitat destruction affect butterfly populations
6. Tropical forests affected by habitat fragmentation store less biomass and carbon dioxide
7. Nepal expands critical tiger habitat
8. NOAA scientists map fish habitat and movements at Grays Reef Marine Sanctuary
9. Seals quickly respond to gain and loss of habitat under climate change
10. Birds in Flint Hills of Kansas, Oklahoma face population decline despite large habitat
11. EPA to study Puerto Rico waters and marine habitat
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/11/2017)... 11, 2017 Crossmatch®, a globally-recognized leader ... today announced that it has been awarded a ... Activity (IARPA) to develop next-generation Presentation Attack Detection ... "Innovation has been a driving force within Crossmatch ... allow us to innovate and develop new technologies ...
(Date:4/5/2017)... SEATTLE , April 5, 2017  The Allen ... the Allen Cell Explorer: a one-of-a-kind portal and dynamic ... large-scale 3D imaging data, the first application of deep ... edited human stem cell lines and a growing suite ... the platform for these and future publicly available resources ...
(Date:3/30/2017)... ANGELES , March 30, 2017  On April ... Hack the Genome hackathon at Microsoft,s ... exciting two-day competition will focus on developing health and ... Hack the Genome is the ... been tremendous. The world,s largest companies in the genomics, ...
Breaking Biology News(10 mins):
(Date:10/10/2017)... BARBARA, CALIFORNIA (PRWEB) , ... October 10, 2017 ... ... management, technological innovation and business process optimization firm for the life sciences and ... BoxWorks conference in San Francisco. , The presentation, “Automating GxP Validation ...
(Date:10/9/2017)... ... October 09, 2017 , ... The award-winning American Farmer television series ... 2018. American Farmer airs Tuesdays at 8:30aET on RFD-TV. , With global population ... challenge of how to continue to feed a growing nation. At the same time, ...
(Date:10/9/2017)... , ... October 09, 2017 ... ... on October 5, 2017, in the medical journal, Epilepsia, Brain Sentinel’s SPEAC® ... gold standard, video EEG, in detecting generalized tonic-clonic seizures (GTCS) using surface ...
(Date:10/7/2017)...  The 2017 Nobel Prize in Chemistry recognizes ... Joachim Frank and Richard Henderson ... (cryo-EM) have helped to broaden the use ... The winners worked with systems manufactured by Thermo ... resolved, three-dimensional images of protein structures that lead ...
Breaking Biology Technology: