sail-world.com
 
 
News Home Boats for Sale MarineBusiness-World Sail-World Racing Cruising Int Magnetic Is RW Photo Gallery FishingBoating
Sail-World.com : Calling all roving sailors - your chance to help a marine survey
Calling all roving sailors - your chance to help a marine survey


'Just lower it into the water until it disappears, and measure the depth - called the ’Secchi Depth’'    Richard Kirby

New Zealand and Australian sailors, here is your unique chance to make a difference in the marine scientific world, just because you are a sailor with a smart phone, helping as 'Citizen Scientists' with a plankton survey for Plymouth University. They especially need the help of sailors in the southern hemisphere. The process is simple and fun and it's vital to our knowledge of the oceans and climate change.

This month the Secchi Disk study and the Secchi App project is just a year old, and already the project leaders are excited about the results. So what is the Secchi Disk study and the Secchi App project? It is the global Citizen Study by seafarers to study the marine phytoplankton and to help track the effects of climate change. (See Sail-World story.)

Secchi disk - simple to make at home. -  .. .  


If you didn't find out about it the first time, read on to find how you can help while out sailing. After a year, and although it is still early days in terms of a long-term study, the project organisers are already excited by the extent of the data collected. Dr Richard Kirby, the project's leader, told Daria Blackwell of the Ocean Cruising Club, 'We hope to soon be able to start some analyses on the role of Citizen Science in marine biology, which will hopefully lead to a publication to acknowledge all your efforts so far. The project is a long-term study however, and the database improves continuously as ocean coverage increases and successive years of Secchi depth data accumulate.'

It was all started when a study by a team of Canadian marine biologists reported that the phytoplankton in the oceans had declined by 40% since the 1950s due to climate change. The phytoplankton are microscopic plant-like cells that float at the surface of the sea from where they underpin the whole marine food chain. Knowing the amount of phytoplankton in the sea, and whether it is changing, is very important therefore, since their abundance determines the number of creatures at every step above them in the marine food web; this includes the amount of fish in the sea to the numbers of sharks, whales, penguins, and polar bears.

However, other scientists didn't agree and the problem was that the oceans are a vast place and there aren't enough marine biologists to study them, and so this is where you, by becoming a Citizen Scientist, can help.

The Citizen Science project relies upon sailors and other seafarers, anglers and divers, knowing about its existence and taking part. They are especially keen to reach out to sailors cruising in the remoter Southern Hemisphere.

Secchi free app for iPhone or Android -  .. .  


Finally, as the project team anticipated at the start, sailors have been remarkably ingenious with the variety of materials they have used to make their 30 cm white Secchi Disk. The more unusual materials include a Vinyl LP, an aluminium road sign, a Frisbee, and a disk cut from a ship's toilet seat.

So what is a Secchi Disk and how do you make it?

A Secchi Disk apparatus is a weighted, 30 cm diameter white disk attached to a tape measure. The Secchi Disk can be made from fibreglass, plastic, metal or wood, the only restriction on its design is that it must be 30 cm in diameter and matt white.

When the Secchi Disk is lowered vertically into the water from the side of a stationary boat, the depth below the surface at which it just disappears from sight is called the Secchi Depth. Away from estuaries, the Secchi Depth reflects the amount of phytoplankton in the water column.

The amount of phytoplankton in the water column will vary seasonally, from place to place and annually. You may choose to set up a sample site and measure the Secchi Depth twice or more a month, or you may choose to make recordings on your travels. In whatever way you decide to take part, your help will help the scientific team to understand the Ocean's biology much better. It is planned for the Secchi Disk study to run for many years to come to create the world's biggest plankton survey.

In order to take part in the project you need to make the very simple DIY Secchi Disk and download the free Secchi app to your smartphone or tablet - you will need a smartphone or tablet that can receive a GPS signal. You can follow the data you collect, along with that of others, on the project website.

For more information go to the website

Sail-World Cruising would like to thank the world-wide Ocean Cruising Club for their contributions to this article.


by Lee Mylchreest


  

Click on the FB Like link to post this story to your FB wall

http://www.sail-world.com/index.cfm?nid=119527

4:21 PM Sat 22 Feb 2014GMT


Click here for printer friendly version
Click here to send us feedback or comments about this story.







Sail-World Cruising News - local and the World





Where in the world are our strongest corals? by Hanny Rivera - Cohen's Lab,






Barnacle Busting by Neil and Ley Langford,




Polar research: Six priorities for Antarctic science by Mahlon C. Kennicutt II and colleagues,




































Risks to penguin populations continues by British Antarctic Survey,






Follow these tips when anchoring by Alex and Daria Blackwell,








Galley Guys meet the Spice Lady by Greg Nicoll, Andy Adams and John Armstrong,


Discover science of maritime exploration at National Maritime Museum
Royal Prince Alfred Yacht Club’s Jack Gale training centre born
Multihull Central launches Aquila range at SIBS *Feature
If all else fails read the instructions!!
ARC Baltic fleet cruising and anchoring in the Finnish archipelago
Phuket Yacht Show: new kid on the block taking on PIMEX? *Feature
Endangered species are like Movie Stars - Charlie Sheens and Tom Hanks
Vanuatu Customs making life easier for visiting cruising yachts
Multihull Central - Covering all the bases *Feature
Baltic 4 Nations rally is now in full swing
Flags at Sea, an infographic by John Tissott
Cruising lessons from ocean racers
Sydney International Boat Show - Day 2 *Feature
Marine Rescue volunteers celebrate new unit and $120,000 vessel
Procedures set out for waterborne visitors to Vanuatu
17-year-old RNLI volunteer saves child in first rescue mission + Video
Teen names latest RNLI Shannon class lifeboat in Poole + Video
Fascinating opportunity with OceansWatch
Pantaenius Insurance - being seen in yellow, green and orange *Feature
Fake GPS signals detected when cruising the high seas
Sydney International Boat Show - Changed conditions on Sydney Harbour   
Our new Cruising Editor editor remembers his first offshore adventure   
World Odyssey Race - Bringing back the Corinthian spirit   
Blue Planet Odyssey Rally - Raising climate change awareness   
Pacific Circuit Rally - 2015   
All Points Rally departs this November   
Gold Coast Broadwater no closer to welcoming supermaxis *Feature   
2014 Magnetic Island Race Week Cruising North - One for Poppy? *Feature   
World ARC 2014 reaches Australia   
A Mooring in Iceberg Alley   
Marine Rescue volunteers called to rescue out of fuel vessel updates   
Marine Rescue volunteers called to rescue second vessel out of fuel   
Boaters urged to speak up on 15%ethanol proposal   
Predictwind helps you pick the best time to depart   
Silver Gull Creek host Marion Smart: Funeral and Wake   
IMB reports worrying trend of piracy hijacks in Southeast Asia   
Watch this whale lift a Kayak clear out of the water   
World ARC reaches half-way point in Australia   
Northern Scotland: Voyage to Orkney and Shetland Isles (Part 2) *Feature   
Vietnam Marina Development: ONE°15 Vung Ro Bay Marina Resort   


For this week's complete news stories select    Last 7 Days
   Search All News
For last month's complete news stories select    Last 30 Days
   Archive News







Sail-World.com  


















Switch Default Region to:

Social Media

Asia

Australia

Canada

Europe

New Zealand

United Kingdom


http://www.sail-world.com/event_images/image/Twitter_logo_small.png http://www.sail-world.com/event_images/image/FaceBook-icon.png  http://www.sail-world.com/event_images/image/RSS-Icon.png

United States

Cruising Northern

Cruising Southern

MarineBusiness World

PowerBoat World

FishingBoating World

 

Contact

Commercial

News

Search

Contact Us

Advertisers Information

Submit news/events

Search Stories/Text

Feedback

Advertisers Directory

Newsletter Archive

Photo Gallery

 

Banner Advertising Details

Newsletter Subscribe

Video Gallery

Policies

 

 

 

Privacy Policy

 

 


Cookie Policy

 

 



This site and its contents are © Copyright TetraMedia and/or the original author, photographer etc. All Rights Reserved.  Photographs are copyright by law.  If you wish to use or buy a photograph, contact the photographer directly.
XLXL WAS Cru SH
LocalAds   DE  ES  FR  IT 

Page does not exist

Unfortunately the web page you were trying to reach does not exist.

Please check the web page address you entered, or try to navigate to this page from the home page at http://www.sail-world.com.