Results 101 to 110 of about 20,916 (168)

Geographic variation in diet, prey resources and exposure to parasites and saxitoxin in Steller sea lions in the Gulf of Alaska

open access: yesFrontiers in Marine Science
Using DNA metabarcoding, we examined diet composition, prey resources, and saxitoxin (STX) and parasite exposure in Steller sea lions (SSL) in the Gulf of Alaska in July and October 2022–2023 using 251 scat samples and 45 seawater samples. Using 12S rRNA
Kelly K. Hastings   +5 more
doaj   +1 more source

The effects of temperature on hatching and survival of northern rock sole larvae (Lepidopsetta polyxystra) [PDF]

open access: yes, 2011
Northern rock sole (Lepidopsetta polyxystra) is a commercially important flatfish in Alaska and was recently classified as a distinct species from southern rock sole (L. bilineata).
Blood, Deborah M., Lauel, Benjamin J.
core  

Abundance, condition, and diet of juvenile Pacific ocean perch (Sebastes alutus) in the Aleutian Islands [PDF]

open access: yes, 2009
T he relative value of pelagic habitat for three size classes of juvenile Pacific ocean perch (Sebastes alutus) was investigated by comparing their abundance and condition in two areas of the Aleutian Islands. Diet, zooplankton biomass, and water column
Boldt, Jennifer L.   +1 more
core  

Survey- and fishery-derived estimates of Pacific cod (Gadus macrocephalus) biomass: implications for strategies to reduce interactions between groundfish fisheries and Steller sea lions (Eumetopias jubatus) [PDF]

open access: yes, 2005
Survey- and fishery-derived biomass estimates have indicated that the harvest indices for Pacific cod (Gadus macrocephalus) within a portion of Steller sea lion (Eumetopias jubatus) critical habitat in February and March 2001 were five to 16 times ...
Brown, Eric S., Fritz, Lowell W.
core  

Using poststratification to improve abundance estimates from multispecies surveys: a study of juvenile flatfishes [PDF]

open access: yes, 2005
Population assessments seldom incorporate habitat information or use previously observed distributions of fish density. Because habitat affects the spatial distribution of fish density and overall abundance, the use of habitat information and previous ...
Dressel, Sherri C.
core  

Towards automated bycatch monitoring: Optimizing and evaluating multi-object tracking of salmon in pollock trawls

open access: yesEcological Informatics
Automated tracking of marine life during fishing operations can provide quantitative data on animal movement, improving our understanding of animal behavior, and informing sustainable fishing gear design and use.
Moses Lurbur   +2 more
doaj   +1 more source

State analysis of a biobased hydrogel subjected to freeze and thaw processes by X ray absorption spectroscopy using synchrotron radiation

open access: yesScientific Reports
Freezing hydrogels can compromise their network structures and modify their properties as a result of ice crystal formation. Therefore, understanding the internal structure, including ice crystals and the state of chemical components within hydrogels, is
Kana Monta   +3 more
doaj   +1 more source

REVENUE RISK AND FISHERY CHOICE WITH LINEAR-EXPONENTIAL UTILITY: AN APPLICATION TO BERING SEA/ALEUTIAN ISLANDS TRAWL FISHERIES [PDF]

open access: yes
A discrete choice model of 1991-96 trawl groundfish fishery participation in the Bering Sea/Aleutian Islands region is developed and estimated. The model fits well, with strong risk and seasonal effects.
House, Brett W.   +2 more
core   +1 more source

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