sail-world.com
 
 
News Home Cruising Australia Cruising USA Cruising Canada Boats for Sale Sail-World Racing Photo Gallery FishingBoating
Video Gallery Newsletters
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

Here is your unique chance to make a difference in the marine scientific world, just because you are a sailor with a smart phone, and especially if you are sailing somewhere remote, helping with a plankton survey. 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 Ocean Cruising Club members have been making their own difference by joining in as citizen scientists... but YOU don't have to be an OCC member, just keen to help the study of climate change.

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.) The Ocean Cruising Club were one of the first organisations to promote the study.

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=119526

11:34 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











Barnacle Busting by Neil and Ley Langford,


From Penguins to Polar Bears by Cherie Winner,








NCI granted dedicated VHF Channel by National Coastwatch,


Positive news for cruising boats in Greece by The Cruising Association,
























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,




If all else fails read the instructions!! by Stuart Carruthers, RYA Cruising Manager,




Phuket Yacht Show: new kid on the block taking on PIMEX? *Feature by Guy Nowell, Sail-World Asia and Phuket Yacht Show,


Sea and Summit leg seven - Rain fails to dampen Tash's spirits
RYA meets with Government over latest red diesel development
Endangered species are like Movie Stars - Charlie Sheens and Tom Hanks
Halong becomes a Super Typhoon; Japan in harm's way
Vanuatu Customs making life easier for visiting cruising yachts
Tropical Storm Bertha expected to become a typhoon
Flags at Sea, an infographic by John Tissott
Cruising lessons from ocean racers
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
RYA Sea Survival Handbook – 2nd edition now available
Fascinating opportunity with OceansWatch
Lobster Thermidor - Making Julia proud
Fake GPS signals detected when cruising the high seas
Our new Cruising Editor editor remembers his first offshore adventure
World Odyssey Race - Bringing back the Corinthian spirit
Blue Planet Odyssey - Jimmy Cornell playing catch up on North West Pa
Blue Planet Odyssey Rally - Raising climate change awareness
All Points Rally departs this November
World ARC 2014 reaches Australia   
Venezuelan Port Control lift recent port restrictions.   
Seismic survey ship operating north of Aruba and Curacao   
A Mooring in Iceberg Alley   
Boaters urged to speak up on 15%ethanol proposal   
Predictwind helps you pick the best time to depart   
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   
Drowning or electric shock? What you need to know to help save a life   
Costa Concordia - the $2.25 billion salvage operation ready to begin   
Northern Scotland: Voyage to Orkney and Shetland Isles, more photos *Feature   
Fort Lauderdale International Boat Show - New location and attractions   
Long Island waters could become more taxing this summer   
4.8 million Legos all at sea   
No tiller sailing - how to steer using just the sails + Video   
Tranquil, colourful and funky, Genoa Bay is a must stop for West Coast *Feature   
Scientist pioneered tracer to reveal hidden ocean flows   


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 NEW CRU NH
LocalAds   DE  ES  FR  IT