Webpages tagged with «Population dynamics»

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Published Oct. 4, 2023 8:08 AM

Climate change and increasing human activity are increasing risks of mass mortality events. In their recent study published in the Journal of Applied Ecology, Buttay et al. (2023) have focused on perturbations that could impact the early life stage of fish. Using the Northeast Arctic cod in the Barents Sea as an example, they evaluated different mitigation strategies alleviating the effect of such dramatic events on the population.

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Published Jan. 3, 2023 10:48 AM

Mass mortality events are on the rise globally. However, we have a limited understanding of the population consequences of such events that particularly affect the early life of fish. To increase our understanding of the population-level effects of mass mortality in early life, we constructed population models for 40 fish species and ran scenarios on mass mortality for these species. Our approach allows for predictions of potential effects of mass mortality in a range of fish.

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Published Jan. 5, 2022 9:45 AM

Jellyfish are usually not targeted by scientific surveys that focus on commercial fish stocks. However, they are very often found in the by-catch of egg and larval surveys. In a recent paper in ICES journal of Marine Sciences, we studied such by-catch data from surveys conducted between 1959-1993 in the Barents Sea showing the high value of such historic data.

Published Feb. 9, 2021 8:27 AM
overlap of abudance over time between fish and plankton, fish life cycle
Published June 12, 2020 1:05 PM

We assessed the effect of the predator−prey relationship on predator survival by developing a novel metric of predator−prey overlap using spatio-temporal statistical models. We found that the amount of overlap between cod larvae (length: 11−15 mm) and their prey explained 29 % of cod recruitment variability.

Published Feb. 27, 2019 3:39 PM
Published Oct. 17, 2017 12:20 PM
Published Apr. 28, 2017 11:23 AM
Published Mar. 10, 2017 11:31 AM
Published Nov. 21, 2014 12:00 AM

Statistical analyses of long-term monitoring data reveal an inverse relationship between the biomasses of zooplankton and plankton-eating fish, but only in the northern and central parts of the Barents Sea. In the southwestern Barents Sea, so such relationship is found.

Published Mar. 14, 2013 2:31 PM

Ecology, population dynamics, genomics and bioeconomics of marine fish stocks 

Published May 26, 2011 9:57 PM
Published May 26, 2011 9:51 PM
Published May 26, 2011 9:50 PM
Published May 26, 2011 9:47 PM