Fisheries and Resources Monitoring System

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Redfish - Southwestern Grand Bank
Marine Resource  Fact Sheet
Stocks management recommendations 2016
Redfish - Southwestern Grand Bank
Fact Sheet Citation  
Redfish in Div. 3O
Owned byNorthwest Atlantic Fisheries Organization (NAFO) – More
Related observationsLocate in inventorydisplay tree map
 
Species:
FAO Names: en - Atlantic redfishes nei, fr - Sébastes de l'Atlantique nca, es - Gallinetas del Atlántico nep, ru - Окуни морские
Geographic extent of Redfish - Southwestern Grand Bank
Main Descriptors
Considered a single stock: No        Spatial Scale: Regional
Management unit: Yes        Reference year: 2015
 
 
Biological State and Trend
State & Trend Descriptors
PartnerFIRMS
Exploitation rateNone-Low Fishing MortalityNo or low fishing mortalityGray
Abundance levelUnknown Stock SizeUncertain/Not assessed
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: No
Exploitation
 

Redfish is caught primarily in bottom trawl fisheries, but some landings are reported from mid-water trawl fisheries. In directed redfish fisheries, Atlantic cod, American plaice, witch flounder and other species are landed as bycatch. In turn, redfish are also caught as bycatch in fisheries directing for other species. The fishery in NAFO Division 3O is regulated by quota and within Canadian waters, also by minimal fish size.

Recent catch estimates and TACs are:
  2007 2008 2009 2010 2011 2012 2013 2014 2015 2016
TAC 20 20 20 20 20 20 20 20 20 20
STATLANT 21 7.5 5.1 6.3 6.5 6.0 7.0 7.8 7.5 7.9  
STACFIS 5.2 4.0 6.4 5.2 6.0 7.0 7.8 7.5 8.4  



Effects of the fishery on the ecosystem

No specific information is available. General impacts of fishing gears on the ecosystem should be considered. A large area of Div. 3O has been closed to protect corals.
Assessment
 
Overall Assessment Results
Reference Point
 

Not defined.
Projection

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

Based upon a qualitative evaluation of trends in stock biomass, fishing mortality proxy and recruitment. The assessment is considered data limited and as such associated with a relatively high uncertainty. Input data are research survey indices and fishery data (STACFIS 2016).

The next full assessment of this stock will be in 2019.

Human impact

Mainly fishery related mortality. Other sources (e.g. pollution, shipping, oil-industry) are undocumented.

Biological and environmental interactions

Redfish are slow growing and bear live young. Recently, genetic analyses linked strong year-classes of juvenile S. fasciatus sampled from the Gulf of St. Lawrence with adults collected in NAFO Divs. 3LNO and southern 3Ps. Local plus distant dispersal of young fish makes the influences of physical and environmental processes on stock dynamics difficult to interpret. There are observations of juvenile redfish associated with seapens in this region.

Fishing Mortality

Biomass


Scientific Advice

Special comments

Length frequencies suggest that the Div. 3O redfish fishery takes predominantly immature fish.
Management
Management unit: Yes

Management Advice

Recommendation for 2017-2019
Management Objectives

No explicit management plan or management objectives defined by Fisheries Commission. General convention objectives (GC Doc. 08/3) are applied. Advice is based on survey indices and catch trends. (the observation of a period of stable catches since the 1960s).

Stock definition for management purposes

The management unit is confined to NAFO Div. 3O.
Source of information
 
Report of the Meeting, 3-16 June, 2016 - SCS Doc. 16/14Rev Click to openhttps://www.nafo.int/Library/Publications/SC-Reports
GC Doc. 08/3.
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