Northumberland Sea Fisheries
Northumberland Sea Fisheries
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Publications

List of publications:

a) Mussel Survey 2007

b) Lobster V Notching Report 2007

c) Summary of Fisheries in the District 2007

a) Stock Assessment of the Littoral Mussel (Mytilus edulis) Beds on Fenham Flats (Holy Island)
March 2007 - Jonathan Green - Environmental Fishery Officer 

With thanks for their assistance to:
Ms. Aisling Lannin, Berwickshire and North
Northumberland Coast European Marine Site Officer (Northumberland County Council)
and Mr. Mike Quigley, Marine Conservation Officer for Natural England

Summary 2007

  1. The mussel bed on Fenham Flats was surveyed on the spring tide on 22nd March 2007.
  1. The Fenham Flats mussel bed was found to occupy an area of 3.718 hectares. Within this bed, mussels were found to occupy 79.81% of the ground.
  1. The mean biomass per square metre was 10.52 kg/m2 and the mean density per square metre was 651 mussels/m2. 
  1. From these figures the total tonnage of mussel biomass was calculated to be 391.13 tonnes and the total population estimated to be 24,204,180 (24.204 million) mussels.
  1. By using a minimum landing size of 55 mm it was estimated that there were 154.60 tonnes of commercial sized mussels.
  1. By using a minimum landing size of 45 mm it was estimated that there were 331.85 tonnes of commercially sized mussels.
  1. The maximum sustainable yield (i.e. the maximum amount of mussels that should be taken) or total allowable catch (TAC) was calculated on the basis of 33% of the commercially sized mussels. This gave a TAC of 51.53 tonnes or 110.6 tonnes depending on the minimum landing size used (55 mm or 45 mm respectively).

Click here to download a copy of this survey in PDF format

b) Lobster v-notching report 2007

  • INTRODUCTION
  • PURCHASE OF LOBSTERS
  • TRANSPORTATION
  • DISTRIBUTION OF “V” NOTCHED LOBSTERS
  • SUMMARIES
    • Summary 1 Purchase of Lobsters 2007
    • Summary 2 Lobster Release Record 2007
    • Summary 3 Record of Land Rover mileage; RIB hours, patrol vessel hours and man hours
    • Summary 4 Lobster Sizes Bar Chart 4 5 6 7
  • APPENDICES
    • Sector 1 Tyne to Wansbeck
    • Sector 2 Wansbeck to Amble
    • Sector 3 Amble to Embleton
    • Sector 4 Embleton to north of Farnes
    • Sector 5 North of Farnes to Scottish Border 8-10 11-13 14-17 18-22 23-26

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Northumberland Sea Fisheries