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Sunday, February 6, 2011

RV Celtic Explorer Newfoundland Mission - DAY EIGHT

Date 05/02/2011 Time: 2319 hrs (UTC)

Position: 48 deg 22 N 47 deg 58 W, Speed 10.5 Knots

196 miles to go to St Johns    Wind 10Knots W


Nearly there!  We are due to arrive in St John’s (in a blizzard naturally) tomorrow at 6pm local time.

The XBT transect of the Atlantic has gone very well and only two stations are left to go at this stage. We are now into almost uniform cold water (<4 degrees) with little temperate gradient down to 2000metres.

We are  about to go over the North Cape of the Grand Banks and Dr George Rose is  monitoring the EK 60 echo sounder as we are running along close to one of the planned transect lines for the following over wintering cod survey.

George has been exploring and mapping the deep scattering layer which is present across the entire  extent of the  Atlantic transect from 400-600metres water depth ,  this layer is thought to be formed  by Myctophidies (Lantern Fish) and Euphasids (shrimp species) .

The vessel will leave St John’s on Tuesday the 8th to begin this survey starting with a survey in picturesque Smith Sound in the north of the Avalon Peninsula.

Lots of birds seen today and a much greater diversity of species including Razorbill, Herring gull, Dovekie also known as Little Auk, (alle alle) and Glaucus Gulls.

Acoustic cetacean monitoring resumed today to the delight of Alessandro and common dolphins and a sperm whale was located and recorded today, its clicks are illustrated below . .

  




Spectrogram of common dolphin whistle seen earlier


Now that the weather has settled and we are nearing port the serious activities such as knitting lessons have commenced ….



Aodhan Fitzgerald

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