News Home Video Gallery Newsletters Photo Gallery Cruising Int
Sail-World.com : California's sea lion invasion - just too heavy for the marinas!
California's sea lion invasion - just too heavy for the marinas!


'Sea lions take over Ventura docks'    .

Different yacht clubs and marinas round the world have a range of problems - pollution, storm damage, the cost of renewal - in California, the biggest issue could be - sea lions. Not because everyone doesn't love watching them, but because they are so heavy they can cause tilting and major damage to the docks. Catherine French, writing for The Log, here writes about these great attractions for visitors:

Since 1972, the National Marine Fisheries Service has been charged with protecting whales, dolphins, porpoises, seals and sea lions through the Marine Mammal Protection Act. The act was in response to many years of hunting whales for their blubber; and seals and sea lions for their fur. Since then, the population of California sea lions has recovered and more than 250,000 live and forage in the California bight and use the offshore Channel Islands for breeding.

According to Ventura Harbormaster Scott Miller, on March 19, 51 sea lions hauled out on one of the floating docks at Ventura Harbor Village Marina. An adult female sea lion weighs about 250 pounds and adult males can weigh 600 to 1,000 pounds each.

Miller explained that the docks are not designed to support such a heavy load.

Last year, the Channel Islands National Park Service had a similar problem, with 30 to 50 males lounging daily on two of their boat docks, causing major tilting and other damage. The Park Service finally installed Seal Stop star-shaped devices that deter sea lions from getting on docks or boats.

'At first, we tried installing a sprinkler system with a motion sensor. The park had tried this before, and it worked for a while. But when we installed one at the marina docks, the sea lions didn’t seem to mind and hauled out on the docks anyway,' Miller said.

Like humans, sea lions can catch cold and need to haul out of the ocean to warm up or thermal-regulate their body temperature, an activity that is critical to their survival.

For many years, sea lions created havoc for boat owners at Pier 39 in San Francisco Bay. Sea lions literally took over the docks.

However, since the mammals drew so many visitors, the city removed some of the commercial and recreation docks and converted them into a series of specially constructed floats that could withstand the weight of 20 to 30 adult sea lions per float.

'We looked into the cost of installing Seal Stop, and for about $6,000 in cost we could only take care of two fingers in the marina, 'explained Miller. The cost of outfitting the entire marina would be more like $90,000.

Currently the two floating finger docks that held the heavy mammals for several days are tweaked from carrying their excess weight. As of April 2, there were only a few sea lions on the marina’s floating docks.

'Right now, the sea lions have left, for the most part. If they come back in large numbers, we plan to try erecting two by fours on the docks, making it less inviting or the animals to haul out,' Miller said.

Read The Log for all California's boating and fishing news


by Catherine French, The Log/Sail-World Cruising

  

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

http://www.sail-world.com/index.cfm?nid=108350

9:22 PM Thu 11 Apr 2013GMT


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







Cruising USA





Remember to properly dispose of obsolete distress beacons by Australian Maritime Safety Authority,




World ARC fleet bids farewell to Bali by World Cruising Club,












World ARC crews in Bali by World Cruising Club,


Could your sailing navigation use a tune-up? by Captain John Jamieson, Florida








The Boat Cookbook by BoatBooks,








World ARC fleet now arriving in Bali by World Cruising Club,










Pack this sailing gear for 'hands-free' lighting by Captain John Jamieson, Florida


















The crowd-pleasing comforts of catamaran cruising
'Sailing Stones' of Death Valley seen in action for the first time
20 coral species listed as threatened under the Endangered Species Act
A case of crossed wires? A shocking situation!
OHPRI Teen Summer Camps make a splash
How amazingly awe-inspiring the Arctic really is
Boaters urged to attend anchoring meetings next week in Florida
New atlas provides thorough audit of marine life in the Southern Ocean
Canal Boating in the Alsace with the Galley Guys
World ARC fleet arrives in Darwin
Timeless Tonga - Charter sailing in a Polynesian paradise *Feature
A fine conclusion to the ARC Baltic 2014
Where in the world are our strongest corals?
Incredible efforts to save yacht from being lost at sea
ARC Baltic fleet visit six countries and six capitals in six weeks
Helen Island, Palau -a beautiful and unique place
Barnacle Busting
From Penguins to Polar Bears
Cornell turns back from the North West Passage
Polar research: Six priorities for Antarctic science
Missing German tourists in the hands of Abu Sayyaf Group   
NCI granted dedicated VHF Channel   
Positive news for cruising boats in Greece   
Bivalves' ability to clean chemicals from waterways   
Are You Sailing with 'Weak Links' in your sailing rigging?   
Week-long cruise turns into 16-year round-the-world voyage   
World ARC fleet cruising the Coral Coast   
Yacht penalized for calling unannounced into Port Resolution   
Galley Guys on the Malty Seas   
Blue Planet Odyssey - Beset in Arctic Bay ice + Video   
Garcia Yachts Exploration 45 - Jimmy Cornell's newest adventure   
Sustainable Seafood - How to purchase with confidence   
Risks to penguin populations continues   
ARC Baltic fleet head from Helsinki to Stockholm   
Follow these tips when anchoring   
Galley Guys meet the Spice Lady   
North American Rally to the Caribbean - Get prepared to head south   
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   


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  

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 USA
LocalAds   DE  ES  FR  IT