Review
Fisheries
K. Spich, D. P. Fey
Summary: Otolith microstructure and otolith size analyses have been important in studying the early life history of cod. This review covers 41 years of publications in this research category, showing that most articles were published in the 1990s and 2000s, with a decrease in the past decade. Larval age analysis often used the lapillus, while sagitta was more frequently used in juvenile specimen studies. Otolith microstructure analysis provided basic data for growth and hatch date analyses, but less commonly used for age validation, prediction, and settlement analysis.
FISHERIES RESEARCH
(2022)
Article
Multidisciplinary Sciences
Szymon Smolinski, Come Denechaud, Gotje von Leesen, Audrey J. Geffen, Peter Gronkjaer, Jane A. Godiksen, Steven E. Campana
Summary: The isotopic composition of inorganic carbon in otoliths can be used as a tracer to study metabolic rates and ecophysiology in wild fish. The study found that there were positive correlations between carbon isotopic composition and growth within individuals and between years, but no significant correlation between carbon isotopic composition and growth between individuals. The significant decrease in delta C-13(oto) over the century was attributed to the oceanic Suess effect and admixture of isotopically light carbon from fossil fuel.
Article
Fisheries
Henrik Svedang, Oleg Savchuk, Anna Villnas, Alf Norkko, Bo G. Gustafsson, Sofia A. Wikstrom, Christoph Humborg, Anna Kuparinen
Summary: Hypoxia is seen as the main factor behind the decline of the Eastern Baltic cod stock, but it is not the direct cause of the decline in EBC productivity. Over the past 60 years, hydrographic conditions in the Bornholm Basin have remained unchanged, while spawning conditions deteriorated in the Gotland Deep due to hypoxia. Additionally, in the past 30 years, well-oxygenated and potentially suitable feeding areas for EBC remain abundant in various parts of the Baltic Sea.
ICES JOURNAL OF MARINE SCIENCE
(2022)
Article
Chemistry, Applied
Yaqi Zhao, Xingyi Jiang, Chunya Tang, Qinchun Rao
Summary: In this study, tropomyosin from Atlantic cod fillets was purified and its structural configuration and antigenicity under different conditions were investigated. The results showed that CTM retained solubility, integrity, and antigenicity.
Article
Fisheries
Torstein Pedersen, Colin Amundsen, Stephen Wickler
Summary: This study compared population characteristics and growth rates of Atlantic cod from different sites and time periods in northern Norway. The cod from pre-20th century were older and larger, while the modern cod were smaller in size. The increase in fishing activity resulted in a decrease in age distributions and longevity of the northeast Arctic cod population.
ICES JOURNAL OF MARINE SCIENCE
(2022)
Article
Food Science & Technology
Zhen Yuan, Meilian Yang, Dongyang Zhu, Di Wu, Shuzhen Cheng, Chao Wu, Hesham R. El-Seedi, Ming Du
Summary: The study found that peptides in Atlantic cod have immunomodulatory activity. These peptides can promote the proliferation of immune cells in mice and affect the gene expression related to innate and adaptive immunity. These findings contribute to a better understanding of the immunomodulatory mechanisms of cod peptides.
FOOD SCIENCE AND HUMAN WELLNESS
(2023)
Article
Multidisciplinary Sciences
Geza Lazar, Fran Nekvapil, Sanja Matic-Skoko, Calin Firta, Dario Vrdoljak, Hana Uvanovic, Lucian Barbu-Tudoran, Maria Suciu, Luka Glamuzina, Branko Glamuzina, Regina Mertz-Kraus, Simona Cinta Pinzaru
Summary: This study evaluated the correlation between spectroscopic and chemical data with the lifetime development and movement pattern of gilthead seabream otoliths from different environments. Raman spectroscopy provided characteristic bands that were used to track the signal variability. The results showed that the Raman spectra can be used as a complementary tool for inferring fish migration or origin.
SCIENTIFIC REPORTS
(2022)
Article
Biology
Naomi Croft Guslund, Anders K. Krabberod, Simen F. Norstebo, Monica Hongro Solbakken, Kjetill S. Jakobsen, Finn-Eirik Johansen, Shuo-Wang Qiao
Summary: This study explores the heterogeneity of lymphocyte subsets in the spleen of Atlantic cod using single-cell RNA sequencing. The findings reveal different T cell and B cell subsets, as well as provide insights into the differentiation trajectory of B cells. Additionally, a CD8-negative T cell subpopulation with distinct expression characteristics is identified.
COMMUNICATIONS BIOLOGY
(2022)
Article
Fisheries
Ina Stoltenberg, Karl Michael Werner, Stefanie M. H. Ismar-Rebitz, Heino O. Fock
Summary: The study examined the relationship between trophic niches and body condition in Atlantic cod in different habitats in Greenland waters, indicating that habitat heterogeneity and trophic niche are important factors influencing reproductive success in cod.
FISHERIES RESEARCH
(2021)
Article
Fisheries
Velmurugu Puvanendran, Trilochan Swain, Helge Tveiten, Oyvind J. Hansen, Atle Mortensen
Summary: Larval cod require live prey for growth and survival, and prey concentration and feeding frequency are important factors. Water exchange rates and current also influence prey resident time and larval behavior. High water current induces stress and cortisol levels, while an intermediate rearing protocol leads to better growth and survival.
AQUACULTURE INTERNATIONAL
(2023)
Article
Environmental Sciences
Elin Sorhus, Charlotte L. Nakken, Carey E. Donald, Daniel M. Ripley, Holly A. Shiels, Sonnich Meier
Summary: Crude oil and single components like Phenanthrene can cause cardiotoxicity by interfering with excitation-contraction coupling. This study shows that the timing of exposure greatly affects the severity of cardiac dysfunction, with late exposure causing more severe abnormalities than early exposure. Early exposure to Phenanthrene had no effect on cardiac development and function.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Marine & Freshwater Biology
Chantelle E. Klaczek, Gavin N. Saari, Heather D. Veilleux, Diane A. Mielewczyk, Greg G. Goss, Chris N. Glover
Summary: The study investigated Sr bioaccumulation and ionoregulatory endpoints in rainbow trout. Results suggest that water Ca concentration strongly influences Sr bioavailability, but over an acute exposure period, there is limited evidence for an effect of Sr on Ca homeostasis in fish.
AQUATIC TOXICOLOGY
(2022)
Article
Biochemistry & Molecular Biology
Cristina V. Rodrigues, Rita O. Sousa, Ana C. Carvalho, Ana L. Alves, Catarina F. Marques, Mariana T. Cerqueira, Rui L. Reis, Tiago H. Silva
Summary: The potential of Atlantic codfish skin collagen for skincare was evaluated in this study. The extracted collagen showed similar characteristics to bovine skin collagen and was not cytotoxic to keratinocytes. Collagen membranes developed from the extract exhibited smooth surfaces, good water absorption capacity, and improved metabolic activity and proliferation of keratinocytes. Therefore, these membranes have potential applications in the biomedical and cosmeceutical fields.
Article
Geosciences, Multidisciplinary
Bryony L. Townhill, Rebecca E. Holt, Bjarte Bogstad, Joel M. Durant, John K. Pinnegar, Andrey Dolgov, Natalia A. Yaragina, Edda Johannesen, Geir Ottersen
Summary: A new dataset compiling the diet of Atlantic cod in the Barents Sea from the 1930s to the present day has been created, representing one of the largest fish diet datasets globally. The dataset reveals the significant role cod plays in the Barents Sea ecosystem as a top predator with a broad diet mainly consisting of crustaceans and teleost fish. The data, collected from Russia, Norway, and the UK, allow for analysis of how environmental changes impact cod diets and what influences their prey switching.
EARTH SYSTEM SCIENCE DATA
(2021)
Article
Fisheries
Stefanie Haase, Kate McQueen, Monica Mion, Magnus Andersson, Annelie Hilvarsson, Hans Jakob Olesen, Anders Svenson, Michele Casini, Karin Hussy, Krzysztof Radtke, Uwe Krumme
Summary: The tagging-induced mortality experiments on Baltic cod showed that tagging did not have a significant effect on mortality, with mortality mainly attributed to capture and handling procedures. There was a negative relationship between fish length and mortality, and significant variations in mortality were observed between different tagging sites.
FISHERIES RESEARCH
(2021)
Article
Fisheries
Stefan Neuenfeldt, Valerio Bartolino, Alessandro Orio, Ken H. Andersen, Niels G. Andersen, Susa Niiranen, Ulf Bergstrom, Didzis Ustups, Nataliia Kulatska, Michele Casini
ICES JOURNAL OF MARINE SCIENCE
(2020)
Review
Fisheries
Karin Hussy, Karin E. Limburg, Helene de Pontual, Oliver R. B. Thomas, Philip K. Cook, Yvette Heimbrand, Martina Blass, Anna M. Sturrock
Summary: Otolith chemistry is used to analyze various aspects of fish biology, with growing attention on physiological processes as a controlling factor. Biomineralization plays a critical role in governing otolith chemical patterns. Environmental tracers are dominated by elements that substitute for Ca or are randomly trapped within the crystal lattice.
REVIEWS IN FISHERIES SCIENCE & AQUACULTURE
(2021)
Article
Fisheries
Kate McQueen, Michele Casini, Bodo Dolk, Stefanie Haase, Jakob Hemmer-Hansen, Annelie Hilvarsson, Karin Huessy, Monica Mion, Thomas Mohr, Krzysztof Radtke, Franziska Maria Schade, Norbert Schulz, Uwe Krumme
ICES JOURNAL OF MARINE SCIENCE
(2020)
Article
Fisheries
Yvette Heimbrand, Karin E. Limburg, Karin Hussy, Michele Casini, Rajlie Sjoberg, Anne-Marie Palmen Bratt, Svend-Erik Levinsky, Anastasia Karpushevskaia, Krzysztof Radtke, Jill Ohlund
JOURNAL OF FISH BIOLOGY
(2020)
Article
Biodiversity Conservation
Orjan Ostman, Lena Bergstrom, Kjell Leonardsson, Anna Gardmark, Michele Casini, Ylva Sjoblom, Fredrik Haas, Jens Olsson
ECOLOGICAL INDICATORS
(2020)
Article
Environmental Sciences
Theodore W. Hermann, Fabrice Duponchelle, Leandro Castello, Karin E. Limburg, Luciana A. Pereira, Marilia Hauser
Summary: Freshwater environments, particularly in the Amazon, harbor a significant portion of the world's fish diversity. However, the basic biology of fish species, including migratory behavior, remains poorly understood in the Amazon. Otolith microchemistry shows promise as a tool for studying fish life histories in the region, but its potential and limitations for informing fish conservation strategies in the Amazon are still unclear.
AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
(2021)
Article
Fisheries
Karin E. Limburg, Francoise Daverat
Article
Engineering, Environmental
Alessandro Orio, Yvette Heimbrand, Karin Limburg
Summary: The intensified expansion of the Baltic Sea's hypoxic zone has been proposed as one reason for the current poor status of cod in the Baltic Sea, with repercussions throughout the food web and on ecosystem services. The study found that the extent of minimally suitable areas for cod is the most important predictor of decreased cod maximum length, and simulations show the potential for Baltic cod to increase its maximum length if hypoxic areal extent is reduced. The findings highlight the importance of reducing hypoxic areas in order to maintain ecosystem services affected by the decrease of cod maximum length.
Article
Biodiversity Conservation
Stuart Kininmonth, Thorsten Blenckner, Susa Niiranen, James Watson, Alessandro Orio, Michele Casini, Stefan Neuenfeldt, Valerio Bartolino, Martin Hansson
Summary: Fisheries management has traditionally focused on population modeling without considering environmental and trophic changes. This study introduces a probabilistic model that incorporates key fish populations and various factors to improve the predictability of fish dynamics.
Article
Ecology
Ruliang He, Karin E. Limburg, Benjamin D. Walther, Melvin A. Samson, Zunli Lu
Summary: The expansion of aquatic deoxygenation has affected the habitats and body condition of fish species. The study explores the use of I/Ca ratios in fish otoliths as a redox proxy. The results suggest that multiple factors, including habitat change and dietary source, may influence I/Ca ratios.
ENVIRONMENTAL BIOLOGY OF FISHES
(2022)
Article
Fisheries
An V. Vu, Lee J. Baumgartner, Martin Mallen-Cooper, Gregory S. Doran, Karin E. Limburg, Bronwyn M. Gillanders, Jason D. Thiem, Julia A. Howitt, Cameron M. Kewish, Juliane Reinhardt, Ian G. Cowx
Summary: Migration tactics vary among fish species, and maintaining diversity in migration strategies is important in managing large tropical rivers.
FISHERIES MANAGEMENT AND ECOLOGY
(2022)
Article
Fisheries
Hege Sande, Nuno Prista, Annica de Groote, Michele Casini, Cynthia Jones, Andreas Sundelof
Summary: To achieve sustainable fisheries, advice based on reliable science and unbiased data is crucial. This study constructed a registry of access points for recreational fishing in the Swedish south-west coast and used probabilistic methods to determine effort and catches. The research provided valuable information for stock assessment and highlighted the potential for refining survey design and optimizing sampling efforts based on additional data collected.
ICES JOURNAL OF MARINE SCIENCE
(2022)
Article
Engineering, Environmental
Hadis Miraly, N. Roxanna Razavi, Annabelle A. Vogl, Richard T. Kraus, Ann Marie Gorman, Karin E. Limburg
Summary: Using eye lenses to determine annual mercury uptake in individual fish is a novel method. Eye lens age was determined by proportional relationships between otolith length at age and eye lens radius. Mercury concentrations were quantified using laser ablation inductively coupled plasma mass spectrometry. The eye lens mercury content revealed that mercury exposure increased with age in Lake Erie and the Baltic Sea but decreased with age in the St. Lawrence River, a trend not detected using muscle tissues. This novel methodology holds promise for quantifying how global change processes like increasing hypoxia affect fish exposure to mercury.
ENVIRONMENTAL SCIENCE & TECHNOLOGY LETTERS
(2023)
Article
Fisheries
M. Lindmark, S. C. Anderson, M. Gogina, M. Casini
Summary: An organism's body condition is positively associated with its fitness, but the condition of Atlantic cod in the Baltic Sea has declined due to competition for food and hypoxia. The effects of biotic and abiotic variables on body condition at local scales have not been evaluated, which is important considering spatial heterogeneity. Geostatistical models were used to assess changes in cod distribution, environmental conditions, and individual-level condition, revealing that temperature, oxygen, sprat, and depth are associated with cod condition. However, the explanatory power of these variables is low compared to spatial and spatiotemporal latent variables.
ICES JOURNAL OF MARINE SCIENCE
(2023)
Article
Ecology
Michele Casini, Martin Hansson, Alessandro Orio, Karin Limburg
Summary: The expansion of hypoxic areas and the decrease in condition of the Eastern Baltic cod in the Baltic Sea over the past 20 years are mainly attributed to the increasing spatial overlap between the cod population and low-oxygenated waters. Since the mid-1990s, individuals with low condition were exposed to low-oxygen waters, leading to a decline in cod body condition. Further studies are needed to understand the movement of the cod population to deeper waters in autumn and the overlap with low-oxygen waters in other seasons to assess the potential effects on cod biology throughout the year.