Map of the survey area.

Map of the survey area.

<p>Subregions 1 to 8 belong to the Skagerrak region. As data for subregions 1 to 4 were only available for 2016 and 2022, they were excluded from statistical analysis of trends. Subregions 9 to 16 belong to the Kattegat region. The S.W. Baltic (17) was treated as a separate population with jus...

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Bibliographic Details
Main Author: Daire Carroll (13232562) (author)
Other Authors: Markus P. Ahola (21627135) (author), Anja M. Carlsson (5027330) (author), Anders Galatius (309528) (author), Kjell T. Nilssen (4169899) (author), Tero Härkönen (5654026) (author), Karin C. Harding (11795537) (author)
Published: 2025
Subjects:
Evolutionary Biology
Ecology
Inorganic Chemistry
Infectious Diseases
Environmental Sciences not elsewhere classified
Biological Sciences not elsewhere classified
previously recovering meta
important case study
logistic growth model
exponential growth model
– 408 individuals
representing individual colonies
estimated mean count
reduced pup counts
div >< p
increased population density
western baltic sea
change remained positive
population </ p
baltic population throughout
estimated annual increase
aerial survey data
harbour seal abundance
population growth
mean counts
baltic population
survey period
seal abundance
harbour seals
certain colonies
54 individuals
declining counts
years 2003
vessel traffic
twelve subregions
recent years
present evidence
parametric modelling
grown exponentially
fitting non
first derivative
environmental factors
determine trends
best fit
annual decline
abundance may
[- 882
67 ])
2010s may
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