Appendix 1: Investigations 



PELAGIC INVESTIGATION 



l 



Station Date Depth Samples Samples for Degree of initial 



(1977) oil analyses oil impact 2 



Pp Ph Z B S S 



I (ref) Oct 25 50 



Nov 22 

 Nov 22-Dec 14 



II Oct 28 23-25 

 Oct 29 

 Oct 30 

 Oct 31 

 Nov 02 

 Nov 02-09 

 Nov 09-17 

 Nov 17-Dec 21 



III Oct 31 ++ 



IV: + 



V: + + + 



Echosounding for fish in Svardsf jarden was also undertaken on Nov 11 and Dec 15 

 1977, and Jan 11 and Apr 12, 1978. During the period 13-29/6, 1978, herring 

 eggs were collected in the impacted area for laboratory experiments on hatching 

 success and compared with eggs collected between 13/6-6/7 from an unpolluted 

 area west of Asko Laboratory. 



Pp = Primary production = none 



Ph = Phytoplankton + = light 



Z = Zooplankton ++ = moderate 



B = Bacteria +++ = heavy 

 S = Sedimentation 



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