Multispecies Age-Structured Assessment for Groundfish and Sea Lions in Alaska

2012 ◽  
pp. 147-168 ◽  
Author(s):  
K.F. Van Kirk ◽  
T.J. Quinn ◽  
J.S. Collie ◽  
Z.T. A'mar
Keyword(s):  
Sea Lions ◽  
Age Structured

AGE-STRUCTURED MODELING REVEALS LONG-TERM DECLINES IN THE NATALITY OF WESTERN STELLER SEA LIONS

2007 ◽  
Vol 17 (8) ◽  
pp. 2214-2232 ◽  
Author(s):  
E. E. Holmes ◽  
L. W. Fritz ◽  
A. E. York ◽  
K. Sweeney
Keyword(s):  
Steller Sea Lions ◽  
Structured Modeling ◽  
Sea Lions ◽  
Age Structured

scholarly journals Model-based evaluation of school- and non-school-related measures to control the COVID-19 pandemic

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Ganna Rozhnova ◽  
Christiaan H. van Dorp ◽  
Patricia Bruijning-Verhagen ◽  
Martin C. J. Bootsma ◽  
Janneke H. H. M. van de Wijgert ◽  
...  
Keyword(s):  
Reproduction Number ◽  
Additional Benefit ◽  
Transmission Model ◽  
Time Points ◽  
School Based ◽  
Admission Data ◽  
Age Structured ◽  
The Impact ◽  
Pandemic Wave

AbstractThe role of school-based contacts in the epidemiology of SARS-CoV-2 is incompletely understood. We use an age-structured transmission model fitted to age-specific seroprevalence and hospital admission data to assess the effects of school-based measures at different time points during the COVID-19 pandemic in the Netherlands. Our analyses suggest that the impact of measures reducing school-based contacts depends on the remaining opportunities to reduce non-school-based contacts. If opportunities to reduce the effective reproduction number (Re) with non-school-based measures are exhausted or undesired and Re is still close to 1, the additional benefit of school-based measures may be considerable, particularly among older school children. As two examples, we demonstrate that keeping schools closed after the summer holidays in 2020, in the absence of other measures, would not have prevented the second pandemic wave in autumn 2020 but closing schools in November 2020 could have reduced Re below 1, with unchanged non-school-based contacts.

scholarly journals Frequency responses of age-structured populations: Pacific salmon as an example

2010 ◽  
Vol 78 (4) ◽  
pp. 239-249 ◽  
Author(s):  
Lee Worden ◽  
Louis W. Botsford ◽  
Alan Hastings ◽  
Matthew D. Holland
Keyword(s):  
Pacific Salmon ◽  
Structured Populations ◽  
Frequency Responses ◽  
Age Structured
Sign in / Sign up

Export Citation Format

Share Document