Fig 11 -

The first graph (left) shows the relative predation mortality of harbor seals and sea birds on coho salmon Smolts predicted by the model between 1979 and 2020. The second graph (right) is a comparison of the predicted total mortality Z (thick purple line) versus total mortality estimates from CWT re...

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Bibliographic Details
Main Authors: Fanny Couture, Villy Christensen, Carl Walters
Format: Still Image
Language:unknown
Published: 2024
Subjects:
Ecology
Inorganic Chemistry
Science Policy
Environmental Sciences not elsewhere classified
Biological Sciences not elsewhere classified
northern british columbia
northeast pacific coast
model provided evidence
model also revealed
low levels since
orcinus orca </
oncorhynchus tshawytscha </
oncorhynchus kisutch </
salmon species targeted
pacific salmon populations
coho salmon (<
chinook salmon populations
chinook salmon (<
killer whale population
salmon population declines
main limiting factor
div >< p
>) smolts increased
multiple factors may
marine mammals could
fishing mortality since
2020 mortality ranging
marine mammals
resident </
>)
could
2020 may
total mortality
mortality pattern
srkw population
study evaluated
stock productivity
relatively stable
previous research
ocean productivity
mainly driven
important large
important driver
food availability
fishing activities
ewe )
eating southern
combined effects
climatic patterns
6 times
Pacific
Killer Whale
Orca
Orcinus orca
Killer whale
Online Access:https://doi.org/10.1371/journal.pone.0296358.g011
Description
Summary:The first graph (left) shows the relative predation mortality of harbor seals and sea birds on coho salmon Smolts predicted by the model between 1979 and 2020. The second graph (right) is a comparison of the predicted total mortality Z (thick purple line) versus total mortality estimates from CWT recoveries (points) from 1979 to 2020.

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