Arctic char is an iconic and unique northern species and hugely important to Arctic peoples, yet it could be threatened by a number of factors in a changing Arctic environment, from human development activities, to a warming climate. (CAFF)

Arctic freshwater: climate change and ecosystems change

Share

While we often think of the Arctic and the huge ocean areas it encompasses, but there are also vast resources of freshwater in the lakes, rivers, streams and wetlands.

Many reports on the changing weather and climate have focused on changes to the land, as in permafrost melt, and the sea with melting ice. However the same warming affecting those Arctic environments is also affecting the immensely important freshwater resources. The changes effect all life from the tiniest diatoms and algae, to zooplankton, aquatic plants, up to the fish at the top of ecosystem.

The report notes that permafrost melt is resulting in some cases of mud and sediment flowing into streams and lakes smothering species and changing the ecosystem (CAFF-video)

A report presented earlier this month at the Arctic Council Ministerial meeting in Finland looked at the changes already seen and those expected.  The report is called State of the Arctic Freshwater Biodiversity.

It was presented to the eight Arctic states- Canada, Denmark, Finland, Iceland, Norway, the Russian Federation, Sweden and the US, as well to leaders from the six indigenous Permanent Participant organizations and other key stakeholders.

The report said freshwater species numbers could actually increase in the Arctic as warming creates a more welcoming environment for southern species to edge northward.  However it also notes that some unique and iconic Arctic species adapted to the cold climate will be further challenged and in some instances may disappear thus changing the Arctic’s biodiversity.

The warming is not the only issue as ongoing development in the north results in fragmented habitat, including damming of rivers, increased pressure from fisheries and over-fishing,

Another report  dealt with the environmental and ecosystem effects from various forms of pollution and contaminants from development in the north and elsewhere, in terms of regional, national, and transboundary international pollution.  The assessment was titled ‘Biological Effects of Contaminants on Arctic Wildlife and Fish.

Other reports presented at this 11th gathering included assessments of underwater marine noise, ocean acidification and warming, and marine litter and microplastics in the Arctic and a climate change update.

Conservation of Arctic Flora and Fauna (CAFF) – Youtube

Additional information-sources

Share
Categories: Environment, International
Tags: , , , ,

Do you want to report an error or a typo? Click here!

@*@ Comments

Leave a Reply

Your email address will not be published. Required fields are marked *

 characters available

Note: By submitting your comments, you acknowledge that Radio Canada International has the right to reproduce, broadcast and publicize those comments or any part thereof in any manner whatsoever. Radio Canada International does not endorse any of the views posted. Your comments will be pre-moderated and published if they meet netiquette guidelines.

Netiquette »

When you express your personal opinion in an online forum, you must be as courteous as if you were speaking with someone face-to-face. Insults and personal attacks will not be tolerated. To disagree with an opinion, an idea or an event is one thing, but to show disrespect for other people is quite another. Great minds don’t always think alike—and that’s precisely what makes online dialogue so interesting and valuable.

Netiquette is the set of rules of conduct governing how you should behave when communicating via the Internet. Before you post a message to a blog or forum, it’s important to read and understand these rules. Otherwise, you may be banned from posting.

  1. RCInet.ca’s online forums are not anonymous. Users must register, and give their full name and place of residence, which are displayed alongside each of their comments. RCInet.ca reserves the right not to publish comments if there is any doubt as to the identity of their author.
  2. Assuming the identity of another person with intent to mislead or cause harm is a serious infraction that may result in the offender being banned.
  3. RCInet.ca’s online forums are open to everyone, without regard to age, ethnic origin, religion, gender or sexual orientation.
  4. Comments that are defamatory, hateful, racist, xenophobic, sexist, or that disparage an ethnic origin, religious affiliation or age group will not be published.
  5. In online speak, writing in ALL CAPS is considered yelling, and may be interpreted as aggressive behaviour, which is unpleasant for the people reading. Any message containing one or more words in all caps (except for initialisms and acronyms) will be rejected, as will any message containing one or more words in bold, italic or underlined characters.
  6. Use of vulgar, obscene or objectionable language is prohibited. Forums are public places and your comments could offend some users. People who use inappropriate language will be banned.
  7. Mutual respect is essential among users. Insulting, threatening or harassing another user is prohibited. You can express your disagreement with an idea without attacking anyone.
  8. Exchanging arguments and opposing views is a key component of healthy debate, but it should not turn into a dialogue or private discussion between two users who address each other without regard for the other participants. Messages of this type will not be posted.
  9. Radio Canada International publishes contents in five languages. The language used in the forums has to be the same as the contents we publish. The usage of other languages, with the exception of some words, is forbidden. Messages that are off-topic will not be published.
  10. Making repetitive posts disrupts the flow of discussions and will not be tolerated.
  11. Adding images or any other type of file to comments is forbidden. Including hyperlinks to other websites is allowed, as long as they comply with netiquette. Radio Canada International  is in no way responsible for the content of such sites, however.
  12. Copying and pasting text written by someone else, even if you credit the author, is unacceptable if that text makes up the majority of your comment.
  13. Posting any type of advertising or call to action, in any form, to Radio Canada International  forums is prohibited.
  14. All comments and other types of content are moderated before publication. Radio Canada International  reserves the right to refuse any comment for publication.
  15. Radio Canada International  reserves the right to close a forum at any time, without notice.
  16. Radio Canada International  reserves the right to amend this code of conduct (netiquette) at any time, without notice.
  17. By participating in its online forums, you allow Radio Canada International to publish your comments on the web for an indefinite time. This also implies that these messages will be indexed by Internet search engines.
  18. Radio Canada International has no obligation to remove your messages from the web if one day you request it. We invite you to carefully consider your comments and the consequences of their posting.

*