Fisheries and Resources Monitoring System

Northern Prawn - Grand Bank
Marine Resource  Fact Sheet
Stocks management recommendations 2017
Northern Prawn - Grand Bank
Fact Sheet Citation  
Northern Shrimp in Div. 3LNO
Owned byNorthwest Atlantic Fisheries Organization (NAFO) – More
Related observationsLocate in inventorydisplay tree map
FAO Names: en - Northern prawn, fr - Crevette nordique, es - Camarón norteño, ru - Креветка северная
Geographic extent of Northern Prawn - Grand Bank
Main Descriptors
Considered a single stock: Yes        Spatial Scale: Regional
Management unit: Yes        Reference year: 2016
Biological State and Trend
State & Trend Descriptors
Exploitation rateNone-Low Fishing Mortality (fishing mortality may not be the main driver of biomass for Flemish Cap shrimp)No or low fishing mortalityRed
Abundance levelDepleted Stock SizeDepleted

The stock has declined since 2007, and in 2016 the risk of being below Blim is greater than 95%. Given expectations of poor recruitment, the stock is not expected to increase in the near future.
Habitat and Biology
Climatic zone: Temperate.   Bottom type: Unspecified.   Depth zone: Slope - Deepslope (500 m - 1000 m).   Horizontal distribution: Neritic.   Vertical distribution: Demersal/Benthic.  

Geographical Distribution
Jurisdictional distribution: Straddling between High Seas and EEZ

Water Area Overview
Spatial Scale: Regional

Geo References
Resource Structure
Considered a single stock: Yes

The fishery, until 2014, was a directed bottom trawl fishery and there is little or no bycatch of shrimp in other trawl fisheries. The fishery in Div. 3LNO is regulated by quota.
  2008 2009 2010 2011 2012 2013 2014 2015 2016 2017
Enacted TAC1 27306 32767 32767 20971 13108 9393 4697 ndf ndf ndf
STATLANT 21 26097 27236 19745 13013 10099 7919 2282 0 0  
NIPAG2 25407 25900 20536 12900 10108 8647 2289 0 0  

1Includes autonomous TAC as set by Denmark (in respect of Faroes and Greenland).

2NIPAG catch estimates have been updated using various data sources (see p. 13, SCR Doc 14/048).

Effects of the fishery on the ecosystem
Overall Assessment Results

Quantitative assessment of risk at various catch options is not possible for this stock at this time.
Assessment Model
Analytical assessment

Based upon a qualitative evaluation of trends in stock biomass, fishing mortality proxy and recruitment. Input data are research survey indices and fishery catches (NIPAG 2017).

Next full assessment is planned for 2019.

Human impact

Mainly fishery related mortality has been documented. Other sources (e.g. pollution, shipping, oil-industry) are considered minor.

Biological and Environmental Interactions

Temperature in the stock area had been warming up to 2011 but was lower than average in 2014-2016. Direct effects of temperature on shrimp distribution, recruitment, growth and survival are poorly understood.

Predation (by cod, Greenland halibut and redfish), low abundance of high energy prey (such as capelin) and environmental factors (including phytoplankton bloom dynamics) appear to be important drivers of the decline of northern shrimp in Divs. 2J3KL.

Fishing Mortality


Scientific Advice

Special comments
Management unit: Yes

Management Advice

Recommendation October 2017 for 2018 - 2019

No directed fishery in 2018 and 2019 as the stock is below Blim with no indication of short-term recovery.
Management Objectives

No explicit management plan or objectives defined by Fisheries Commission. General convention objectives (GC Doc. 08/3) are applied. Advice is based on qualitative evaluation of biomass indices in relation to historic levels, and provided in the context of the precautionary approach framework (FC Doc. 04/18).

Stock definition for management purposes

The stock in Div. 3LNO is assessed and managed as a discrete population (see special comment).
Source of information Click to open
Report of the Meeting, 27 September – 04 October, 2017 - SCS Doc. 17/18.
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