Working Group on Southern Horse Mackerel, Anchovy and Sardine (WGHANSA).
WKBSalmon reviewed the implementation of a Life Cycle Model (LCM) for wild anadromous Atlantic salmon (Salmo salar L.) covering their natal north Atlantic range. The LCM is a time iterative, Bayesian hierarchical model incorporating salmon records of fifteen countries at 25 stock-units. It tracks sa...
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ftarchimer:oai:archimer.ifremer.fr:97925 2024-01-14T10:05:29+01:00 Working Group on Southern Horse Mackerel, Anchovy and Sardine (WGHANSA). ICES 2023-10-13 application/pdf https://archimer.ifremer.fr/doc/00867/97925/107038.pdf https://doi.org/10.17895/ices.pub.19982720 https://archimer.ifremer.fr/doc/00867/97925/ eng eng ICES Scientific reports https://archimer.ifremer.fr/doc/00867/97925/107038.pdf doi:10.17895/ices.pub.19982720 https://archimer.ifremer.fr/doc/00867/97925/ info:eu-repo/semantics/openAccess restricted use ICES Scientific Reports/Rapports scientifiques du CIEM (2618-1371) (ICES Scientific reports), 2023-10-13 , Vol. 4 , N. 51 , P. 518 text Article info:eu-repo/semantics/article 2023 ftarchimer https://doi.org/10.17895/ices.pub.19982720 2023-12-19T23:51:09Z WKBSalmon reviewed the implementation of a Life Cycle Model (LCM) for wild anadromous Atlantic salmon (Salmo salar L.) covering their natal north Atlantic range. The LCM is a time iterative, Bayesian hierarchical model incorporating salmon records of fifteen countries at 25 stock-units. It tracks salmon of two explicit sea-age streams, namely, one-sea-winter (1SW) and multi-sea-winter (MSW), stock unit specific smolt ages, numbers of salmon returning to stock-units, proportions maturing, survival at sea by month and stock unit specific post-smolt sur-vival rates and proportion maturing at 1SW. Mixed-stock catches at West Greenland and Fa-roes, as well as those in North America, are designated to stock-units based on observed histor-ic tag data, genetic identification and assumed harvest distributions. The LCM will replace three Pre-Fisheries Abundance (PFA) forecast models, aligned to three management units, one eastern North America and two Northeast Atlantic European complex-es of stock-units. The LCM enables a more comprehensive and consistent approach, account-ing for migration and maturation of salmon by stock-unit and a hierarchical (over stock-units) modelling of post-smolt survival and proportion maturing in the first year at sea. The LCM uses outputs from two “Run Reconstruction” models, one for each of eastern North America and Northeast Atlantic origin salmon. These processes catch data and exploitation rates and / or returns at stock-unit spatial scales to estimate returning numbers and catches of salm-on by sea-age group. The LCM model uses a similar sea-age group structure for all stock-units resulting in a harmonized life cycle for Atlantic salmon from the North Atlantic. The LCM forecasts estimates of returning salmon by stock-unit based on the post-smolt surviv-al and proportion maturing parameters, forecast forward as a random-walk, from the most recent observations and accounting for “banked” maturing and non-maturing salmon. Fore-cast returns to stock-units may be compared to Conservation ... Article in Journal/Newspaper Atlantic salmon Greenland North Atlantic Northeast Atlantic Salmo salar Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Greenland |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
description |
WKBSalmon reviewed the implementation of a Life Cycle Model (LCM) for wild anadromous Atlantic salmon (Salmo salar L.) covering their natal north Atlantic range. The LCM is a time iterative, Bayesian hierarchical model incorporating salmon records of fifteen countries at 25 stock-units. It tracks salmon of two explicit sea-age streams, namely, one-sea-winter (1SW) and multi-sea-winter (MSW), stock unit specific smolt ages, numbers of salmon returning to stock-units, proportions maturing, survival at sea by month and stock unit specific post-smolt sur-vival rates and proportion maturing at 1SW. Mixed-stock catches at West Greenland and Fa-roes, as well as those in North America, are designated to stock-units based on observed histor-ic tag data, genetic identification and assumed harvest distributions. The LCM will replace three Pre-Fisheries Abundance (PFA) forecast models, aligned to three management units, one eastern North America and two Northeast Atlantic European complex-es of stock-units. The LCM enables a more comprehensive and consistent approach, account-ing for migration and maturation of salmon by stock-unit and a hierarchical (over stock-units) modelling of post-smolt survival and proportion maturing in the first year at sea. The LCM uses outputs from two “Run Reconstruction” models, one for each of eastern North America and Northeast Atlantic origin salmon. These processes catch data and exploitation rates and / or returns at stock-unit spatial scales to estimate returning numbers and catches of salm-on by sea-age group. The LCM model uses a similar sea-age group structure for all stock-units resulting in a harmonized life cycle for Atlantic salmon from the North Atlantic. The LCM forecasts estimates of returning salmon by stock-unit based on the post-smolt surviv-al and proportion maturing parameters, forecast forward as a random-walk, from the most recent observations and accounting for “banked” maturing and non-maturing salmon. Fore-cast returns to stock-units may be compared to Conservation ... |
format |
Article in Journal/Newspaper |
author |
ICES |
spellingShingle |
ICES Working Group on Southern Horse Mackerel, Anchovy and Sardine (WGHANSA). |
author_facet |
ICES |
author_sort |
ICES |
title |
Working Group on Southern Horse Mackerel, Anchovy and Sardine (WGHANSA). |
title_short |
Working Group on Southern Horse Mackerel, Anchovy and Sardine (WGHANSA). |
title_full |
Working Group on Southern Horse Mackerel, Anchovy and Sardine (WGHANSA). |
title_fullStr |
Working Group on Southern Horse Mackerel, Anchovy and Sardine (WGHANSA). |
title_full_unstemmed |
Working Group on Southern Horse Mackerel, Anchovy and Sardine (WGHANSA). |
title_sort |
working group on southern horse mackerel, anchovy and sardine (wghansa). |
publisher |
ICES Scientific reports |
publishDate |
2023 |
url |
https://archimer.ifremer.fr/doc/00867/97925/107038.pdf https://doi.org/10.17895/ices.pub.19982720 https://archimer.ifremer.fr/doc/00867/97925/ |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Atlantic salmon Greenland North Atlantic Northeast Atlantic Salmo salar |
genre_facet |
Atlantic salmon Greenland North Atlantic Northeast Atlantic Salmo salar |
op_source |
ICES Scientific Reports/Rapports scientifiques du CIEM (2618-1371) (ICES Scientific reports), 2023-10-13 , Vol. 4 , N. 51 , P. 518 |
op_relation |
https://archimer.ifremer.fr/doc/00867/97925/107038.pdf doi:10.17895/ices.pub.19982720 https://archimer.ifremer.fr/doc/00867/97925/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.17895/ices.pub.19982720 |
_version_ |
1788059835734949888 |