News | Technology
21 Jan 2018 6:04
NZCity News
NZCity CalculatorReturn to NZCity

  • Start Page
  • Personalise
  • Days of Xmas
  • Sport
  • Weather
  • Finance
  • Shopping
  • Jobs
  • Horoscopes
  • Lotto Results
  • Photo Gallery
  • Site Gallery
  • TVNow
  • Dating
  • SearchNZ
  • NZSearch
  • Crime.co.nz
  • RugbyLeague
  • Make Home
  • About NZCity
  • Contact NZCity
  • Your Privacy
  • Advertising
  • Login
  • Join for Free

  •   Home > News > Technology

    Scientists explore deep ocean life

    Scientists have returned from a three-week voyage to the Kermadec Trench and have taken samples which are expected to give them insight into life in the deep.


    Scientists were surprised to find organisms, such as microbes, having more carbon (food) available for them to eat at the bottom of the Kermadec Trench, deep in the south of the Pacific Ocean.

    In general, there is less food the deeper you go, but there's the potential for that amount of food to increase because of the funnelling nature of the trenches, says NIWA marine ecologist Dr Ashley Rowden.

    "There was hints that could be the case (for food increases)," Dr Rowden said.

    The deep trench caters for microbes, which can refer to thread-like worms, while there may also be larger marine life such as sea cucumbers.

    The ecologist and a team of researchers have just returned from a three-week voyage to the Kermadec Trench, to better understand how life in the deep functions.

    The voyage saw scientists take what they believe is the deepest ever sediment sample from the bottom of the ocean using a wire-deployed corer.

    The corer, which is a wire cable-deployed instrument, allowed scientists to take samples from a depth of 9994m in a mission that took six hours to complete.

    Meanwhile, Dr Rowden explained that seismic activity played a big part in the trench activity, as an earthquake will move sediment around.

    "An earthquake will affect the organisms which will have to re-establish themselves. So you can imagine along the trench, which is 1000km long, there will be different seismic activity," he said.

    The samples and data will help the team to understand how life at such conditions functions and differs from marine life at shallower depths.

    Scientists used a range of autonomous deep-diving vehicles to confirm that the deepest trenches act as hotspots of intensified biological activity in the oceans.

    The international team now face months of work analysing data and samples.

    © 2018 NZN, NZCity


     Other Technology News
     20 Jan: Rocket Lab forced to abort launch again
     20 Jan: Dotcom suing NZ govt for 'billions'
     18 Jan: Parents told to forget phones at the pool
     16 Jan: NASA scientist lands job in Central Otago
     12 Jan: Uber and Airbnb added to consumer index
     12 Jan: Rocket Lab looks to launch again
     12 Jan: 'Sham contracting', debt and distress overwhelm telco repair workers
     Top Stories

    RUGBY RUGBY
    Liam Messam signs for Toulon More...


    BUSINESS BUSINESS
    Business booming for Indonesia's 'sharia motorbike taxis' More...



     Today's News

    Motoring:
    China's pink, oversized women-only car parks slammed as sexist 4:36

    Soccer:
    Phoenix stun Jets 3-2 in A-League 23:26

    Basketball:
    Melb United dodges Brisbane's Bullets 23:06

    Cricket:
    NZ U19s trump South Africa at World Cup 21:36

    Tennis:
    Daniell through to Aust Open third round 20:36

    Cycling:
    Bibby wins Cycle Classic fourth stage 19:26

    Technology:
    Rocket Lab forced to abort launch again 19:06

    Golf:
    Fox improves standing in Abu Dhabi golf 18:16

    Law and Order:
    Man charged over fatal Northland fight 17:36

    Sports:
    Coll progresses in NYC squash tournament 17:16


     News Search






    Power Search


    © 2018 New Zealand City Ltd