An updated statistical catch-at-length assessment for Eastern Atlantic bluefin tuna
Butterworth and Rademeyer (2013) provided an initial Statistical Catch-at-Length (SCAL) assessment of the eastern populations of North Atlantic bluefin tuna. The primary purpose in fitting to length- rather than to age distribution data was to avoid the need to make use of the somewhat coarse cohort...
Main Authors: | , |
---|---|
Format: | Report |
Language: | unknown |
Published: |
2022
|
Subjects: | |
Online Access: | https://doi.org/10.25375/uct.19114640.v1 https://figshare.com/articles/report/An_updated_statistical_catch-at-length_assessment_for_Eastern_Atlantic_bluefin_tuna/19114640 |
id |
ftunicapetownfig:oai:figshare.com:article/19114640 |
---|---|
record_format |
openpolar |
spelling |
ftunicapetownfig:oai:figshare.com:article/19114640 2023-05-15T17:31:53+02:00 An updated statistical catch-at-length assessment for Eastern Atlantic bluefin tuna Doug Butterworth Rebecca A Rademeyer 2022-02-18T12:26:43Z https://doi.org/10.25375/uct.19114640.v1 https://figshare.com/articles/report/An_updated_statistical_catch-at-length_assessment_for_Eastern_Atlantic_bluefin_tuna/19114640 unknown doi:10.25375/uct.19114640.v1 https://figshare.com/articles/report/An_updated_statistical_catch-at-length_assessment_for_Eastern_Atlantic_bluefin_tuna/19114640 CC BY 4.0 CC-BY Biological Mathematics Applied Statistics Biostatistics statistical catch-at-length (SCAL) assessment East Atlantic Ocean bluefin tuna population population dynamics (ecology) fisheries stock assessment Text Report 2022 ftunicapetownfig https://doi.org/10.25375/uct.19114640.v1 2022-02-24T00:02:59Z Butterworth and Rademeyer (2013) provided an initial Statistical Catch-at-Length (SCAL) assessment of the eastern populations of North Atlantic bluefin tuna. The primary purpose in fitting to length- rather than to age distribution data was to avoid the need to make use of the somewhat coarse cohort-slicing method to provide the latter. Here these analyses are updated using comparable inputs to those agreed for the initial 2014 updated VPA assessments. The results suggest a spawning biomass time series similar to that estimated by VPA over the 1975 to 2005 period, but lower after and appreciably higher before this period. Report North Atlantic University of Cape Town: Figshare Butterworth ENVELOPE(66.733,66.733,-70.700,-70.700) |
institution |
Open Polar |
collection |
University of Cape Town: Figshare |
op_collection_id |
ftunicapetownfig |
language |
unknown |
topic |
Biological Mathematics Applied Statistics Biostatistics statistical catch-at-length (SCAL) assessment East Atlantic Ocean bluefin tuna population population dynamics (ecology) fisheries stock assessment |
spellingShingle |
Biological Mathematics Applied Statistics Biostatistics statistical catch-at-length (SCAL) assessment East Atlantic Ocean bluefin tuna population population dynamics (ecology) fisheries stock assessment Doug Butterworth Rebecca A Rademeyer An updated statistical catch-at-length assessment for Eastern Atlantic bluefin tuna |
topic_facet |
Biological Mathematics Applied Statistics Biostatistics statistical catch-at-length (SCAL) assessment East Atlantic Ocean bluefin tuna population population dynamics (ecology) fisheries stock assessment |
description |
Butterworth and Rademeyer (2013) provided an initial Statistical Catch-at-Length (SCAL) assessment of the eastern populations of North Atlantic bluefin tuna. The primary purpose in fitting to length- rather than to age distribution data was to avoid the need to make use of the somewhat coarse cohort-slicing method to provide the latter. Here these analyses are updated using comparable inputs to those agreed for the initial 2014 updated VPA assessments. The results suggest a spawning biomass time series similar to that estimated by VPA over the 1975 to 2005 period, but lower after and appreciably higher before this period. |
format |
Report |
author |
Doug Butterworth Rebecca A Rademeyer |
author_facet |
Doug Butterworth Rebecca A Rademeyer |
author_sort |
Doug Butterworth |
title |
An updated statistical catch-at-length assessment for Eastern Atlantic bluefin tuna |
title_short |
An updated statistical catch-at-length assessment for Eastern Atlantic bluefin tuna |
title_full |
An updated statistical catch-at-length assessment for Eastern Atlantic bluefin tuna |
title_fullStr |
An updated statistical catch-at-length assessment for Eastern Atlantic bluefin tuna |
title_full_unstemmed |
An updated statistical catch-at-length assessment for Eastern Atlantic bluefin tuna |
title_sort |
updated statistical catch-at-length assessment for eastern atlantic bluefin tuna |
publishDate |
2022 |
url |
https://doi.org/10.25375/uct.19114640.v1 https://figshare.com/articles/report/An_updated_statistical_catch-at-length_assessment_for_Eastern_Atlantic_bluefin_tuna/19114640 |
long_lat |
ENVELOPE(66.733,66.733,-70.700,-70.700) |
geographic |
Butterworth |
geographic_facet |
Butterworth |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
doi:10.25375/uct.19114640.v1 https://figshare.com/articles/report/An_updated_statistical_catch-at-length_assessment_for_Eastern_Atlantic_bluefin_tuna/19114640 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.25375/uct.19114640.v1 |
_version_ |
1766129745112596480 |