30 août 2011 · survival of adult Chinook salmon (Oncorhynchus tshawytscha) and We used radiotelemetry to evaluate pinniped-caused injury effects on mi-
Naughton et al. pinniped injury effects
Extent to which such pinnipeds are causing undue injury or impact, California sea lions hunt for and eat migrating adult salmonids as the fish move through A recent tagging study on the influence of pinniped-caused injuries on survival of
noaa DS
7 nov 2017 · Estimated California sea lion predation on salmonids at Willamette Influence of pinniped-caused injuries on the survival of adult Chinook
Willamette Falls sea lion report
common sea lion species in the Pacific Northwest and harbor seals were the most Influence of pinniped-caused injuries on the survival of adult Chinook
Willamette Falls sea lion report
the Estuaries, and Species and Numbers of Pinnipeds Present During Adult Salmonid descaling of the fish and probably do not affect survival pinniped- induced stress from scarring and injuries may also result in lowered spawning
gen nmfs nmfs tm
relationship between a factor and fishing-related incidental mortality (FRIM) Influence of pinniped-caused injuries on the survival of adult Chinook
CSAS FRIM RESDOC A eng
13 fév 2018 · 2011 Influence of pinniped-caused injuries on the survival of adult Chinook salmon (Oncorhynchus tshawytscha) and steelhead trout
Proceedings of Expert E s Workshop on Columbia River and Hydro Sytem Impacts
Toxoplasmosis caused by Toxoplasma gondii is a common infection in France: adulte la toxoplasmose faisant suite à une contamination orale par des ...
Until present two impact indicators on ingestion of litter by seabirds stuck in intestines
23 juil. 2019 Un merci spécial à Charly pour toutes ces réunions et nos échanges ... alimentaire des juvéniles entremêlent des causes ultimes (les causes ...
8 nov. 2019 that has recently seen its survival threatened due to negative effects of various kinds and whose small size.
vivants a un impact négatif sur les populations et l'habitat ; la qualité de vie certaines populations de dauphins.139 Des accidents se sont également ...
15 jui. 2021 Seabirds are long-lived species with late maturity and low fecundity and therefore any impact on their adult survival rates could have ...
Toxoplasmosis caused by Toxoplasma gondii is a common infection in France: adulte la toxoplasmose faisant suite à une contamination orale par des ...
The effects of fisheries on seabirds can be manifold: (1) overexploitation on their adult survival rates could have severe negative consequences for the ...
8 avr. 2009 6.5.3 Mitigation of death and injury caused by the direct effects of ... pinnipeds) many marine fish species
Injury was not consistently associated with adult survival to spawning tributaries but some neg- ative survival effects were detected Pinniped-caused injury rates decreased as annual run sizes
explained above the majority of pinniped strandings occur when animals are pups or yearlings and the cause of stranding is typically malnutrition disease separation from attending female and human interaction Malnutrition may be caused in some cases if the newly weaned pup is not effectively foraging for food causing starvation
The study concluded that pinniped-caused injuries were generally not well correlated to survival of adult fish It was noted that this is a relevant piece to understand predation impacts on extinction risk
Analyses of pinniped-salmonid interactions in or near the Columbia River suggest that all life stages of salmonids are at risk of predation by pinnipeds (Brown et al 2017 Chasco et al 2017) and that some salmonid runs are at greater risk of depredation and potential extinction than others (Keefer et
Presence and predation by CSL was first observed in the fall of 2008 and has been noted each fall since Additional salmonids were caught by pinnipeds but escaped and swam away with unknown injuries (3 3 2 3 and 2 6 of total salmonid catch escaped in 2008 2009 and 2010 respectively)
Analysis of the Influence of Trauma Injury Factors on the Probability of Survival M Saleh R Saatchi F Lecky and D Burke Abstract— The probability or likelihood of survival in trauma injuries is a clinically important parameter for triage setting treatment priorities and research and management audit
WSAS Committee on Pinniped Predation on Salmonids 3 populations Several participants agreed that the influence of habitat loss on pinniped predation and salmonid mortality warrants further research Indifference to Human Presence Several participants reported that pinnipeds especially those residing in areas where hunting is not
Are pinnipeds threatened by humans?
- Pinnipeds are also threatened by humans indirectly. They are unintentionally caught in fishing nets by commercial fisheries and accidentally swallow fishing hooks. Gillnetting and Seine netting is a significant cause of mortality in seals and other marine mammals.
How do pinnipeds affect the environment?
- Pinnipeds are frequently affected by infectious diseases, biotoxin events, and environmental changes that result in prey shifts, all of which can directly contribute to mass morbidity and mortality.
What can scientists learn about pinnipeds?
- Scientists can learn a great deal about what pinnipeds do at sea, how healthy they are, and where they travel by looking at what they’ve eaten—their prey remnants. This is done without hurting the animals by two methods: lavage and scat analysis.
Should pinnipeds be kept in captivity?
- Some organizations, such as the Humane Society of the United States and World Animal Protection, object to keeping pinnipeds and other marine mammals in captivity. They state that the exhibits could not be large enough to house animals that have evolved to be migratory, and a pool could never replace the size and biodiversity of the ocean.
Toxoplasmose : état des connaissances et évaluation du risque lié à