NAFO 4T age estimation structures dataset (English, French, CSV)

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Publisher-reported update

2026-06-03

PURPOSE: Support age-structured population stock assessments and research on fish growth. DESCRIPTION: Fish otoliths are collected from scientific surveys, fisheries observers on fishing vessels and from scientific sampling of commercial fisheries. The otoliths collected are placed in paper envelopes, recorded and held in a climate-controlled storage facility. Atlantic herring otoliths are mounted and glued to acrylic trays. Age determination is performed yearly on available samples. Digital images of each pair of otoliths collected are captured when possible. The information made available through this metadata record is the summary of otoliths present in the collection at the Gulf Fisheries Centre in Moncton, NB, Canada. The number of otoliths available from different sources by year and month is provided for the following stocks: Atlantic Cod, NAFO Divisions 4T / 4VN (Nov. to Apr.) White Hake, NAFO Division 4T American Plaice, NAFO Division 4T Winter Flounder, NAFO Division 4T Yellowtail Flounder, NAFO Division 4T Witch Flounder, NAFO Divisions 4RST Atlantic Herring, NAFO Division 4T Skate species, NAFO Division 4T There is additional information of observed sex, length,…

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