Blar i Publikasjoner fra CRIStin på tidsskrift "ICES Journal of Marine Science"
Viser treff 41-60 av 140
-
Effects of climate and spawning stock structure on the spatial distribution of Northeast Arctic cod larvae
(Peer reviewed; Journal article, 2020)The spatial distribution of fish early life stages can impact recruitment at later stages and affect population size and resilience. Northeast Arctic (NEA) cod spawning occurs along the Norwegian coast. Eggs, larvae, and ... -
Effects of laboratory salmon louse infection on mortality, growth, and sexual maturation in Atlantic salmon
(Peer reviewed; Journal article, 2022)Elevated salmon louse infection pressure generated by salmon farming represents a major threat for wild Atlantic salmon (Salmo salar). This study explored the effect of salmon lice on mortality, and body and gonad growth ... -
The effects of spatial and temporal variations in spawning on offspring survival in Northeast Arctic cod
(Peer reviewed; Journal article, 2023)Climate change and harvesting result in temporal and spatial changes and variability in spawning, and thus in offspring ambient drift conditions. As a result, variable survival of offspring and thereby in recruitment are ... -
Eight decades of adaptive changes in herring reproductive investment: the joint effect of environment and exploitation
(Peer reviewed; Journal article, 2020)Reproductive investment is a central trait for population dynamics and productivity. Fishing and environmental variations are major drivers affecting population structure, dynamics, and adaptation of life-history and ... -
Environmental influences on Norwegian spring-spawning herring (<i>Clupea harengus</i> L.) larvae reveal recent constraints in recruitment success
(Peer reviewed; Journal article, 2020)The lack of any abundant recruiting year class of Norwegian spring-spawning (NSS) herring between 2005 and 2015 contributed to an approximate reduction of 40% in the spawning-stock biomass since 2009, i.e. from 7 to 4 ... -
Estimating cod egg developmental stage based on DNA concentration
(Journal article; Peer reviewed, 2017)Pelagic egg surveys are commonly used to map Atlantic cod spawning areas in the northeastern Atlantic. However, a sampling location may not necessarily indicate a spawning location, because more developed eggs may have ... -
Estimation and classification of temporal trends to support integrated ecosystem assessment
(Peer reviewed; Journal article, 2020)We propose a trend estimation and classification (TREC) approach to estimating dominant common trends among multivariate time series observations. Our methods are based on two statistical procedures that includes trend ... -
Evaluating acoustic-trawl survey strategies using an end-to-end ecosystem model
(Peer reviewed; Journal article, 2020)Fisheries independent surveys support science and fisheries assessments but are costly. Evaluating the efficacy of a survey before initiating it could save costs. We used the NORWECOM.E2E model to simulate Northeast Atlantic ... -
Evaluating effort regulation in mixed fisheries: a Monte Carlo approach
(Journal article; Peer reviewed, 2019)This paper evaluates whether effort regulation could achieve the goal of protecting low-abundance species in mixed fisheries. We construct a two-species bio-economic model and compare the stock abundance ratio in the end ... -
Evaluation of sampling strategies for age determination of cod (Gadus morhua) sampled at the North Sea International Bottom Trawl Survey
(Peer reviewed; Journal article, 2020)The North Sea cod stock assessment is based on indices of abundance-at-age from fishery-independent bottom trawl surveys. The age structure of the catch is estimated by sampling fish for otoliths collection in a length-stratified ... -
Explicit incorporation of spatial variability in a biomass dynamics assessment model
(Peer reviewed; Journal article, 2021)The sustainable management of fisheries has largely relied on stock assessment models that assume stocks are homogeneous throughout their domain. However, ignoring complex underlying spatial patterns can lead to increased ... -
Fish community dynamics in a coastal no-take marine protected area compared to a harvested area before and after protection from fishing
(Peer reviewed; Journal article, 2023)An ecosystem's ability to maintain key functions during environmental change is largely determined by its biodiversity. We compared fish species composition, richness, diversity, catch per unit effort (CPUE), and fish size ... -
Fish consumption by great cormorants in Norwegian coastal waters—a human-wildlife conflict for wrasses, but not gadids
(Peer reviewed; Journal article, 2021)Piscivorous wildlife is often perceived as competitors by humans. Great cormorants of the continental subspecies (Phalacrocorax carbo sinensis) in the Baltic and North Sea increase, while local cod (Gadus morhua) stocks ... -
Five centuries of cod catches in Eastern Canada
(Peer reviewed; Journal article, 2021)The fishery for Northern Atlantic cod (Gadus morhua) off Newfoundland and Labrador, Eastern Canada, presents the most spectacular case of an exploited stock crashed in a few decades by an industrial bottom trawl fishery ... -
Flexible behaviour in a mesopelagic fish (Maurolicus muelleri)
(Peer reviewed; Journal article, 2021)Variability of mesopelagic scattering layers is often attributed to environmental conditions or multi-species layer composition. Yet, little is known about variation in behaviour among the individuals forming scattering ... -
Flexible behaviour in a mesopelagic fish (Maurolicus muelleri)
(Peer reviewed; Journal article, 2021)Variability of mesopelagic scattering layers is often attributed to environmental conditions or multi-species layer composition. Yet, little is known about variation in behaviour among the individuals forming scattering ... -
From siphonophores to deep scattering layers: Uncertainty ranges for the estimation of global mesopelagic fish biomass
(Peer reviewed; Journal article, 2019)The mesopelagic community is important for downward oceanic carbon transportation and is a potential food source for humans. Estimates of global mesopelagic fish biomass vary substantially (between 1 and 20 Gt). Here, we ... -
Gaussian mixture models reveal highly diverse targeting tactics in a coastal fishing fleet
(Peer reviewed; Journal article, 2022)Fishermen make repeated choices with respect to when, where, and how to catch their target species. While these targeting tactics—and the factors shaping them—are known to fishers and some experts, knowledge about them is ... -
Gaussian mixture models reveal highly diverse targeting tactics in a coastal fishing fleet
(Peer reviewed; Journal article, 2022)Fishermen make repeated choices with respect to when, where, and how to catch their target species. While these targeting tactics—and the factors shaping them—are known to fishers and some experts, knowledge about them is ... -
Genetic analysis of goldsinny wrasse reveals evolutionary insights into population connectivity and potentialevidence of inadverent translocationvia aquaculture.
(Peer reviewed; Journal article, 2017)