Displaying items by tag: Morbillivirus

2nd January 2014

America's Dolphin Death Toll Show No Signs Of Abating

#MarineWildlife - The dolphin death toll on America's Atlantic coast caused by a measels-like virus now exceeds 1,000 - and marine scientists have warned the Guardian that the epidemic shows now signs of slowing down.

As reported in August on Afloat.ie, more than 300 deaths of bottlenose dolphins found between New York and North Carolina - more than 10 times the average for the time of year - were connected with the presence of morbillivirus.

Researchers speculate that the marine mammals have somehow lost their natural immunity to the disease, which first appeared in the late 1980s when it killed a known 740 cetaceans - but factors due to climate change have also not been ruled out.

The previous outbreak of morbillivirus wiped out half of all of the Eastern Seaboard's coastal migratory dolphins, whose population currently stands at more than 39,000 thanks to conservation efforts since that last epidemic.

It's not believed there is any connection between the morbillivirus resurgence on the far side of the Atlantic and the continued rise in dolphin strandings around Ireland.

However, the Irish Whale and Dolphin Group (IWDG) has identified a different threat to Irish cetaceans, calling for a ban on pelagic fishing within Special Areas of Conservation in West Cork and the Shannon Estuary in order to preserve a key food source for local dolphins and porpoise.

"The removal of herring and sprat could have a significant impact on [cetaceans'] foraging efficiency and hence on the life histories of harbour porpoise and bottlenose dolphins, especially their reproductive fitness," says the IWDG's Dr Simon Berrow.

Published in Marine Wildlife

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Scottish Series Background

Although the format of the Scottish Series varies little from year to year, it is interesting to see some of the changes which the event has seen over the years:

CYCA handicap class added to IOR (1976)

IOR level rating classes to reflect the popular sizes and World Championships being held in the UK

Separate one design class for Sonatas (1980 to date)

Campbeltown dropped with offshore races direct to Tarbert (1982)

Unique light displacement CYCA class - the forerunner of today's sportboats (1982)

Computer results system introduced in 1982 and now recognised as the best in the UK

Separate one design class for Sigma 33 (1987 to date)

Separate one design classes in certain years for Impalas, Sigma 38, Melges 24 and Cork 1720

Inner triangle to shorten courses for smaller classes (1986)

Points loading for offshore race reduced from 2 to 1.5 to 1

First racing in Scotland under Channel Handicap (1988)

Second racecourse for smaller classes (1989)

Discard introduced

Windward leeward races - two per day (1993)

Sportboat classes with no overnight races (1994)

Marquee on quayside for main social events (1995-2008)

Restricted Sail Class (1998)

Third racecourse for sportboats with up to three races per day (1998)

Day feeder races (2002)

Overnight and day feeder races discontinued (2005)

Stand-alone Tarbert Inbound and Outbound passage races introduced (2005/6)

With all these changes, some things have stayed the same:

Huge support from Ireland every year since 1975

A magnificent effort ashore and afloat from the volunteer helpers of the Clyde Cruising Club, Royal Scottish Motor Yacht Club and Tarbert Loch Fyne Yacht Club

Results and communications service at the forefront of technology

The best competition and the best social scene in the country

An overall Series winner, the roll call including many of the top sailors in Scotland and beyond.