CE0401

Use the URI link below to search the Marine Institute Data Discovery Catalogue for datasets relevant to this report.The objectives of this survey were to: 1). To assess the size of the herring stock in VIaS and VIIb using an EK60 scientific sounder and a 38 kHz mounted within the vessels drop keel. Observe fish marks along the survey track using 18, 120 and 200 kHz; 2). Collect biological data from herring samples within this area and determine composition of marks using a single pelagic mid-water trawl