Report 463a
Marine mammal observations during seismic surveys from 1994 - 2010
(2015)
Stone, C.J.
Data from 1,196 seismic surveys in UK and adjacent waters between 1994 and 2010 were examined to assess the effects of seismic operations on marine mammals and overall trends in compliance with the JNCC Guidelines for Minimising the Risk of Injury and Disturbance to Marine Mammals from Seismic Surveys (JNCC 2010 and earlier versions).
 

Introduction

 
This report presents the results of an analysis of Marine Mammal Observer (MMO) data from seismic survey consents from 1994 to 2010 in UK waters.  The aim of the analysis was to identify any effects of seismic operations on marine mammals and any long term trends in compliance with the JNCC guidelines.  The analysis focused on general trends in survey effort and species distribution; detection rates, closest distance of approach to the airguns, behaviour and the effectiveness of the soft start (all comparing airguns firing versus not firing) and general trends in compliance with the JNCC seismic guidelines.
 
Please note JNCC Report 463b is the accompanying report to JNCC Report 463a.
 
 
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Available free from JNCC
ISSN 0963 8901
 
Please cite as: Stone, C.J., (2015), Marine mammal observations during seismic surveys from 1994 - 2010, JNCC Report 463a, ISSN 0963 8901