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Rapid oceanic and atmospheric changes during the Younger Dryas cold period
The Younger Dryas event, which began approximately 12,900 years ago, was a period of rapid cooling in the Northern Hemisphere, driven by large-scale reorganizations of patterns of atmospheric andExpand
Turnover of dead jellyfish: stimulation and retardation of microbial activity
TLDR
The role of dead jellyfish as trophic links in specific pelagic foodwebs depends partly on bacterial community composition, and the rapid turnover suggests that large amounts of carbon and nitrogen are transferred to the pelagic and/or benthicFoodwebs at the collapse of jellyfish blooms. Expand
Sub-populations of coastal cod with different behaviour and life-history strategies
TLDR
Evidence of countergradient variations in life-history traits among coastal cod Gadus morhua off the Norwegian coast is provided, suggesting the existence of sub-populations with different life histories and adaptations to the high-latitude environment for northern cod and counter- gradient variation. Expand
Stereological calibration of the profile method to quickly estimate atresia levels in fish
TLDR
The practical use of this simple, fast approach designated the stereo-profile method, including the additional use of image analysis for further refinements, is successfully demonstrated on field samples. Expand
The hypoxia avoidance behaviour of juvenile Atlantic cod (Gadus morhua L.) depends on the provision and pressure level of an O2 refuge
TLDR
It is hypothesized that the feeding range of fish may be heavily compressed if hypoxia expands and intensifies in future years, and it is unlikely that cod, and possibly other fish species, would enter low O2 to feed in the wild if a sufficiently safe O2 refuge was not available. Expand
Intraguild predatory interactions between the jellyfish Cyanea capillata and Aurelia aurita
TLDR
Behavior observations suggested that predators did not alter their swimming behavior during meals, and thus that feeding rates were generally handling limited rather than encounter limited, and Predators captured more prey than needed, and semi-digested prey was often discarded when fresh prey was encountered. Expand
The Effect of Photoperiod on Sexual Maturation, Appetite and Growth in Wild Atlantic Cod (Gadus morhua L.)
TLDR
It is confirmed that photoperiod is a major cue to maturation in cod and imply that the high cost of spawning for females incur differences in appetite between the sexes. Expand
Frequent skipped spawning in the world’s largest cod population
TLDR
It is proposed that skipped spawning is an integral life-history component for NEAC, likely varying annually, and it could therefore be an underlying factor causing some of the currently unexplained large NEAC recruitment variation. Expand
Trade-offs between growth and reproduction in wild Atlantic cod
TLDR
It was found that 6- and 7-year-old females skipping spawning grew significantly more in the year of missed spawning than females spawning for the seco..., indicating distinct trade-offs between length growth and reproduction. Expand
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