Article
Ecology
Martin Lykke Kristensen, Esben Moland Olsen, Even Moland, Halvor Knutsen, Peter Gronkjaer, Anders Koed, Kristi Kallo, Kim Aarestrup
Summary: The coexistence of different ecotypes of Atlantic cod may exhibit innate differences in feeding and movement ecologies, potentially filling different functional roles in marine ecosystems.
ECOLOGY AND EVOLUTION
(2021)
Article
Fisheries
Clarissa Akemi Kajiya Endo, Frode B. Vikebo, Natalia A. Yaragina, Solfrid Saetre Hjollo, Leif Christian Stige
Summary: The study focused on the spatial distribution of Northeast Arctic cod larvae along the Norwegian coast, finding a positive association between biomass and mean weight of spawners with larval abundance. Environmental factors had weak correlations with larval abundance and distribution, while larval abundance showed significant associations with future year-class abundance.
ICES JOURNAL OF MARINE SCIENCE
(2021)
Article
Biochemistry & Molecular Biology
Matthew K. Brachmann, Kevin Parsons, Skuli Skulason, Oscar Gaggiotti, Moira Ferguson
Summary: Sympatric adaptive phenotypic divergence of benthic and pelagic morphs in Icelandic Arctic charr is underlined by genomic differentiation. The divergence histories were reconstructed using coalescent modeling and single nucleotide polymorphisms. Genomic differentiation was characterized by outlier loci and was associated with phenotypic and ecological variation, suggesting a genomic basis for adaptive divergence. Little evidence was found for a parallel genomic basis of differentiation among populations.
Article
Evolutionary Biology
Marina A. Z. Panova, Marina A. Varfolomeeva, Elizaveta R. Gafarova, Arina L. Maltseva, Natalia A. Mikhailova, Andrei Granovitch
Summary: Microbes play a prominent role in the evolution of their hosts, facilitating ecological divergence. This study found differences in gut microbiome composition and biofilm composition between different Littorina snail ecotypes and their habitats, providing a promising marine system to study co-evolution of microbes and hosts.
EVOLUTIONARY APPLICATIONS
(2023)
Article
Fisheries
C. A. K. Endo, M. D. Skogen, L. C. Stige, S. S. Hjollo, F. B. Vikebo
Summary: Climate change and harvesting lead to changes and variability in spawning location and time, affecting offspring survival and recruitment. This is particularly evident for species with long reproduction migration, such as Atlantic cod stocks. Simulation analysis using a biophysical model shows that survival is 1.5-2 times higher when spawning shifts southwards compared to northwards. Survival is more sensitive to shifts in spawning location than time. Early spawning is only beneficial if spawning also moves farther north. A future scenario with a northward shift in spawning grounds suggests reduced offspring survival and increased sensitivity to spawning timing.
ICES JOURNAL OF MARINE SCIENCE
(2023)
Article
Marine & Freshwater Biology
Katherine Dunlop, Arved Staby, Terje van der Meeren, Nigel Keeley, Esben M. Olsen, Raymond Bannister, Jon Egil Skjaeraasen
Summary: This study provides valuable insights into the habitat associations of juvenile coastal cod, saithe, pollack, goldsinny wrasse, and corkwing wrasse, with sublittoral biotic habitats and substrates, which is essential for the protection and management of commercially important demersal fish species.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Biochemistry & Molecular Biology
Maria Cruz Sueiro, Cynthia A. Awruch, Gustavo M. Somoza, Walter S. Svagelj, Maria G. Palacios
Summary: According to life-history theory, there might be different immunological strategies between reproductive and non-reproductive periods due to limited resources. Our study on two sympatric marine fish species, rockfish and sandperch, found that reproductive individuals showed lower immune function, but higher levels of natural antibodies in rockfish females, compared to their non-reproductive counterparts. On the other hand, reproductively active sandperch males showed lower levels of natural antibodies and higher neutrophil to lymphocyte ratio and spleen index compared to non-reproductive males. The study highlights the species-specific patterns of immunity and the potential influence of resource limitation and abiotic factors on immune trade-offs in fish.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-MOLECULAR & INTEGRATIVE PHYSIOLOGY
(2024)
Article
Geography, Physical
George Hambrecht, Frank Feeley, Konrad Smiarowski, Megan Hicks, Ramona Harrison, Seth Brewington, Grace Cesario, Kevin Gibbons
Summary: This article combines new marine fish faunal data from medieval and early modern Icelandic archaeological sites with previously published data to examine the relationship between humans and Icelandic cod populations over the last 1000 years. The findings suggest a nuanced relationship between changing climates and fishing patterns, with possible correlation between sea ice and fishing productivity in the early modern period. Social, political, economic, and technological factors also played a role in mediating the impacts of climate change on marine resources.
QUATERNARY RESEARCH
(2022)
Article
Multidisciplinary Sciences
Evgeny Esin, Grigorii N. Markevich, Nikolai O. Melnik, Dmitriy Zlenko, Fedor N. Shkil
Summary: This study focused on the role of temperature dynamics on the reproductive sites of Salvelinus malma and found that temperature significantly affected the early ontogeny of the charrs, leading to differences in growth rates and morph-specific developmental adaptations between the morphs.
Article
Fisheries
Henn Ojaveer, Riina Klais-Peets, Heli Einberg, Gunta Rubene
Summary: The scientific interest in fish recruitment dynamics dates back to the early 20th century. Studies have shown that the environment may have a stronger impact on recruitment than spawning stock biomass, with complex interactions between these factors. Prey density and the severity of the first winter significantly affect the recruitment of herring, and the relationship between the environment and recruitment exhibits characteristics of nonstationarity, linearity, and nonlinearity.
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2021)
Article
Economics
Long Chu, R. Quentin Grafton, Tom Kompas
Summary: Overfishing and environmental factors pose significant threats to marine fisheries, potentially hindering the achievement of Sustainable Development Goal #14. A study developed an analytical framework to evaluate harvest control rules in relation to economic objectives and stock resilience. The results showed that the Dynamic Maximum Economic Yield control rule outperformed other widely used rules, generating larger economic surplus and greater resilience for the fishery.
ECONOMIC ANALYSIS AND POLICY
(2022)
Article
Fisheries
K. McQueen, J. E. Skjaeraasen, D. Nyqvist, E. M. Olsen, O. Karlsen, J. J. Meager, P. H. Kvadsheim, N. O. Handegard, T. N. Forland, K. de Jong, L. D. Sivle
Summary: The fine-scale behavioural responses of Atlantic cod to airgun exposure over an extended period were investigated using an acoustic telemetry positioning system on a spawning ground in Norway. The results suggest that relatively distant seismic surveys do not substantially alter cod behaviour during the spawning period at received sound exposure levels varying between 115 and 145 dB re 1 mu Pa(2)s over a 5-d period.
ICES JOURNAL OF MARINE SCIENCE
(2023)
Article
Fisheries
Geir Ottersen, Rebecca E. Holt
Summary: This study examines the impact of the spawning stock on the connection between the environment and recruitment, and its significance for the dynamics of cod populations. The findings support earlier hypotheses and provide stronger evidence for the relationship. Furthermore, the study emphasizes the importance of considering environmental status in fisheries management advice.
FISHERIES OCEANOGRAPHY
(2023)
Article
Fisheries
Wolfgang Nikolaus Probst, Alexander Kempf, Marc Taylor, Inigo Martinez, David Miller
Summary: In the EU, the ecosystem approach to fisheries is implemented through various directives and policies, with the MSFD playing a crucial role in assessing the environmental status of exploited fish and shellfish stocks. While the CFP and MSFD stock assessments are meant to align, there are substantial differences in the criteria used, necessitating measures to ensure compliance with MSFD requirements.
ICES JOURNAL OF MARINE SCIENCE
(2021)
Review
Oceanography
Teunis Jansen, Aril Slotte, Thassya Christina dos Santos Schmidt, Claus Reedtz Sparrevohn, Jan Arge Jacobsen, Olav Sigurd Kjesbu
Summary: Egg surveys are used for estimating spawning stock biomass of small pelagic fish, and this study on Northeast Atlantic mackerel reveals fluctuating body energy reserves and highest feeding levels during spawning season, supporting an indeterminate fecundity type over the currently accepted determinate-type classification.
PROGRESS IN OCEANOGRAPHY
(2021)
Article
Marine & Freshwater Biology
Elizabeth L. Roesler, Timothy B. Grabowski
Article
Ecology
Timothy B. Grabowski, Jessica Pease, Jillian R. Groeschel-Taylor
ENVIRONMENTAL BIOLOGY OF FISHES
(2018)
Article
Ecology
Jessica E. Pease, Timothy B. Grabowski, Allison A. Pease, Preston T. Bean
ECOLOGY AND EVOLUTION
(2018)
Article
Ecology
Timothy Grabowski, Shawn P. Young, Peter A. Cott
FRESHWATER BIOLOGY
(2020)
Article
Biodiversity Conservation
Jillian R. Groeschel-Taylor, Seiji Miyazono, Timothy B. Grabowski, Gary P. Garrett
JOURNAL OF FISH AND WILDLIFE MANAGEMENT
(2020)
Article
Ecology
Henrik Gislason, Jeremy Collie, Brian R. MacKenzie, Anders Nielsen, Maria de Fatima Borges, Teresa Bottari, Corina Chaves, Andrey Dolgov, Jakov Dulcic, Daniel Duplisea, Heino O. Fock, Didier Gascuel, Luis Gil de Sola, Jan Geert Hiddink, Remment ter Hofstede, Igor Isajlovic, Jonas Pall Jonasson, Ole Jorgensen, Kristjan Kristinsson, Gudrun Marteinsdottir, Hicham Masski, Sanja Matic-Skoko, Mark R. Payne, Melita Peharda, Jakup Reinert, Jon Solmundsson, Cristina Silva, Lilja Stefansdottir, Francisco Velasco, Nedo Vrgoc
GLOBAL ECOLOGY AND BIOGEOGRAPHY
(2020)
Article
Multidisciplinary Sciences
Cecilia Kvaavik, Gudmundur J. Oskarsson, Anna Kristin Danielsdottir, Gudrun Marteinsdottir
Article
Fisheries
Jed Macdonald, Russell N. Drysdale, Roman Witt, Zsofia Csagoly, Gudrun Marteinsdottir
REVIEWS IN FISH BIOLOGY AND FISHERIES
(2020)
Article
Geosciences, Multidisciplinary
W. E. Butler, L. O. Guomundsdottir, K. Logemann, T. J. Langbehn, G. Marteinsdottir
JOURNAL OF MARINE SYSTEMS
(2020)
Article
Fisheries
Kristinn Saemundsson, Jonas P. Jonasson, Gavin A. Begg, Hjalti Karlsson, Gudrun Marteinsdottir, Ingibjorg G. Jonsdottir
FISHERIES RESEARCH
(2020)
Article
Ecology
Matthew R. Acre, Timothy B. Grabowski, Daniel J. Leavitt, Nathan G. Smith, Allison A. Pease, Jessica E. Pease
Summary: This research aimed to identify the extent of blue sucker habitat and species mobility in the Colorado River, Texas. Critical river reaches were identified, suitable habitats were found to be limited, and larger home ranges were presumably necessary for blue suckers to find suitable habitats.
ENVIRONMENTAL BIOLOGY OF FISHES
(2021)
Article
Environmental Sciences
Allison A. Pease, Jessica E. Pease, Preston T. Bean, Timothy B. Grabowski
Summary: We used stable isotope analysis to investigate differences in resource use between Guadalupe bass populations in mainstem river and tributary stream habitats. Guadalupe bass in mainstem sites had higher δ13C and δ15N values, reflecting the greater importance of algae as a basal resource and influences of urban wastewater. Documenting ecological variation in different ecosystem types is crucial for fish conservation efforts, especially for species inhabiting various stream sizes.
RIVER RESEARCH AND APPLICATIONS
(2022)
Article
Ecology
Seiji Miyazono, Allison A. Pease, Sarah Fritts, Timothy B. Grabowski
ENVIRONMENTAL BIOLOGY OF FISHES
(2020)
Article
Food Science & Technology
Magdalena M. Stefaniak-Vidarsson, Maria Gudjonsdottir, Gudrun Marteinsdottir, Sesselja Omarsdottir, Elena Bravo, Olafur E. Sigurjonsson, Kristberg Kristbergsson
FUNCTIONAL FOODS IN HEALTH AND DISEASE
(2019)
Article
Biodiversity Conservation
Jed I. Macdonald, Kai Logemann, Elias T. Krainski, Thorsteinn Sigurdsson, Colin M. Beale, Geir Huse, Solfrid S. Hjollo, Gudrun Marteinsdottir