Reply
 
Thread Tools Search this Thread
 
Old 29 August 2001, 17:03   #1
Member
 
Country: UK - Scotland
Town: Highlands
Boat name: Quicksilver
Make: Quicksilver
Length: 3m +
Engine: Mariner 15hp
Join Date: Aug 2001
Posts: 1,771
Dolphins

I was out in the Moray Firth last October (2000) and this was only my 3rd time out on the sea!

We were about 1 mile out and ended up surrounded by a school of about 40 Dolphins. Quite terrifying as each one is about the same bodyweight as a cow! They could have easily tipped the boat if they wanted.

We had Karen's underwater camera with us and as the Dolphins went under and around the boat we managed to get some pictures. You can clearly see the Dolphins back and fin, this one had just dived under the boat. The picture was taken by Karen who just held the camera under the water and fired off some shots.

They are Bottle Nose Dolphins of which there are about 100 in the Moray Firth. I have seen them from the shore many times but this was just something else! Wow, what an introduction to boating.

Now before anyone tries to tell me off about chasing Dolphins...we weren't. They came to us. We turned the power off and just let them get on with it. After about 5 minutes we very slowly made our way back inshore and several followed us right in. Remember Karen is a Marine Biologist and she keeps me in order.

It was a magical experience.

Keith Hart
Attached Thumbnails
Click image for larger version

Name:	dolphin2gif.gif
Views:	448
Size:	55.8 KB
ID:	67  
__________________

__________________
Keith Hart is offline   Reply With Quote
Old 29 August 2001, 17:05   #2
Member
 
Country: UK - Scotland
Town: Highlands
Boat name: Quicksilver
Make: Quicksilver
Length: 3m +
Engine: Mariner 15hp
Join Date: Aug 2001
Posts: 1,771
This is the Dolphin under the boat.

Keith Hart
Attached Thumbnails
Click image for larger version

Name:	dolphin1gif.gif
Views:	447
Size:	85.0 KB
ID:	68  
__________________

__________________
Keith Hart is offline   Reply With Quote
Old 04 September 2001, 16:05   #3
Member
 
Country: UK - Scotland
Town: Highlands
Boat name: Quicksilver
Make: Quicksilver
Length: 3m +
Engine: Mariner 15hp
Join Date: Aug 2001
Posts: 1,771
As I am new to this boating stuff I have difficulty in estimating distances when out at sea (inshore!). Looking at the first picture of the Dolphins at the side of the boat, how far out do you think we were?

Keith Hart
__________________
Keith Hart is offline   Reply With Quote
Old 05 September 2001, 03:24   #4
Administrator
 
John Kennett's Avatar
 
Country: UK - England
Town: Brighton
Length: 3m +
Join Date: May 2000
Posts: 6,830
It's hard to tell, especially from a photo, but I would guess about half a mile.

Perhaps this could become our equivalent of a spot the ball competition!

John
__________________
John Kennett is offline   Reply With Quote
Old 05 September 2001, 05:36   #5
Member
 
Country: UK - England
Town: Shaftesbury
Make: currently boatless (formerly Tornado)
Length: 5.4
Engine: Mariner 40
Join Date: Sep 2001
Posts: 35
In order to guesstimate the distance, it would be helpful to know two things, the format of the camera (35mm, A.P.S., etc.) and the focal length of the lens on the camera.

Armed with that info., it should be possible to corroborate (or otherwise!) John's estimate.

They say the camera never lies but it can be very hard sometimes to know how "truthful" it is being!
__________________
Allan is offline   Reply With Quote
Old 05 September 2001, 12:11   #6
Member
 
Country: UK - Scotland
Town: Highlands
Boat name: Quicksilver
Make: Quicksilver
Length: 3m +
Engine: Mariner 15hp
Join Date: Aug 2001
Posts: 1,771
Oh...difficult!

Er, it is a point and shoot, focus free camera that takes 35mm film (not an slr). It goes inside a plastic case and you can use it underwater, hence the photo of the dolphin's back.

This attached photo was taken with the same camera about 30 minutes before.

Is this any help?

Keith Hart
Attached Images
 
__________________
Small boat - BIG truck

www.photo4x4.co.uk
Keith Hart is offline   Reply With Quote
Old 05 September 2001, 13:08   #7
Member
 
Country: UK - England
Town: Shaftesbury
Make: currently boatless (formerly Tornado)
Length: 5.4
Engine: Mariner 40
Join Date: Sep 2001
Posts: 35
The type of camera you describe, tends very often to have quite a wideangle lens fitted. This has the effect of exagerating distances and I would guess that John's estimate of 1/2 a mile may be a bit on the generous side.

Having said that, when you get a view like the one in the photograph, as seen with the naked eye I think that John would be right on the money.

Estimating distances over water is notoriously hard, but can improve with practice so when you get out on the water with your new toys (hand bearing compass and gps) zap off a few fixes and/or check the gps and your "feel" for distance will develop very rapidly.
__________________
Allan is offline   Reply With Quote
Old 10 September 2001, 03:05   #8
Member
 
Country: UK - Scotland
Town: Highlands
Boat name: Quicksilver
Make: Quicksilver
Length: 3m +
Engine: Mariner 15hp
Join Date: Aug 2001
Posts: 1,771
Hi there

You are so right, I have found it really difficult to estimate distances over water. I have some new charts for Kylesku, Ullapool and my own area of the Moray Firth. When I am up in Scotland again in a couple of weeks (I can hardly wait) I will check out known distances on the charts and then take a look from the boat. That way I should get some practical estimation at known distances (what a mouthful).

Whisper.........

NO not TOYS, I've been very working hard to convince the Boss (her indoors) that these GPS thingys are a VERY important and necessary life saving instruments that are required by LAW and if I don't have them I could drift out to sea and never be seen again etc. etc.

..........Normal voice again

Of course I got the charts from www.chartsales.co.uk, brilliant service.

Cheers, Keith Hart
__________________

__________________
Small boat - BIG truck

www.photo4x4.co.uk
Keith Hart is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off





Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -5. The time now is 04:25.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.