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Hydro-acoustics to locate cod spawning aggregations and trawls to collect biological samples to characterize the aggregation

Solicitation number 30002468

Publication date

Closing date and time 2022/05/12 13:00 EDT


    Description

    Introduction

    This project is aimed at enhancing knowledge of Atlantic cod populations in the southern Gulf of St. Lawrence, and to identify current spawning area and develop spawning ground specific indices of biomass to inform rebuilding plans, COSEWIC assessment, Species at Risk listing decisions, and stock assessments. Cod has been in the Critical Zone of the Precautionary Approach Framework since 2005 and the cod-directed fishery has been closed since 2009. Furthermore, southern Gulf cod have also been assessed as Endangered by COSEWIC. Atlantic cod spawn in tight aggregations with high density, sometimes forming vertical formations in the water column known as “spawning columns”. Cod also exhibit strong spawning site fidelity. The discovery and protection of spawning aggregations has been identified by some as of critical importance to rebuilding these stocks. This project will identify the spatial and temporal extent of cod spawning aggregations using hydroacoustic surveys conducted weekly following an adaptive sampling design. Additionally, we will use acoustics and sampling to estimate the biomass of the spawning population.

    The contractors must choose fishers for conducting acoustic and trawl sampling. DFO will provide guidance and manage the project.

    Task 1: A minimum of one fishing vessel will use an adaptive survey design to locate and delineate the spatial extent of the cod spawning area near Miscou Bank. Once located the survey will use a parallel transect pattern with transects placed at 1nm intervals to avoid double counting.

    Task 2: One trawling vessel will be used to collect biological samples to allow for the calculation of target strength to enable echo interpretation.

    Contract duration

    Refer to the description above for full details.

    Trade agreements

    • Canadian Free Trade Agreement (CFTA)

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    Contact information

    Contracting organization

    Organization
    Fisheries and Oceans Canada
    Address
    200 Kent St, Station 13E228
    Ottawa, Ontario, K1A 0E6
    Canada
    Contracting authority
    Peters, Michael
    Phone
    506-429-2359
    Email
    DFOtenders-soumissionsMPO@dfo-mpo.gc.ca
    Address
    301 Bishop Dr
    Fredericton, NB, E3C 2M6
    CA

    Buying organization(s)

    Organization
    Fisheries and Oceans Canada
    Address
    200 Kent St, Station 13E228
    Ottawa, Ontario, K1A 0E6
    Canada
    Bidding details

    Full details regarding this tender opportunity are available in the documents below. Click on the document name to download the file. Contact the contracting officer if you have any questions regarding these documents.

    Tender documents
    Document title Amendment no. Language Unique downloads Date added
    000
    French
    3
    000
    English
    4

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    Summary information

    Notice type
    Request for Proposal
    Language(s)
    English, French
    Region(s) of delivery
    New Brunswick
    Region of opportunity
    Canada
    Procurement method
    Competitive – Open Bidding
    Commodity - GSIN
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