Article
Fisheries
S. M. Taylor, C. B. Smallwood, C. J. Desfosses, K. L. Ryan, G. Jackson
Summary: Estimating catch for small-scale recreational fisheries can be challenging. This study compared the accuracy of estimates from phone-diary surveys and supplementary access point surveys, finding that the latter provided more precise estimates. Calling for ongoing monitoring using the SAP_Aerial survey for spatial scales examined.
ICES JOURNAL OF MARINE SCIENCE
(2021)
Article
Fisheries
J. R. Britton, D. Andreou, M. Lopez-Bejar, A. Carbajal
Summary: Capturing fish through angling is a short-term stressor, but the longer term physiological consequences of repeated capture remain uncertain. By using scale cortisol content as a biomarker, we developed proxies of susceptibility to angling capture and tested them against scale cortisol content in two fish populations. However, in both species, the fish predicted to be most vulnerable to angling capture had the lowest levels of scale cortisol content.
FISHERIES RESEARCH
(2023)
Article
Engineering, Environmental
Xiao Liu, Langping Wu, Steffen Kuemmel, Hans H. Richnow
Summary: The study demonstrated the biotransformation of α-HCH in wheat using a hydroponic experimental setup. The major metabolite of α-HCH transformation in wheat was identified as 1,3,4,5,6-pentachlorocyclohexene, while no transformation was detected for β-HCH.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Engineering, Environmental
Yaqing Liu, Juan Fu, Langping Wu, Steffen Kuemmel, Ivonne Nijenhuis, Hans H. Richnow
Summary: In this study, multi-element compound-specific stable isotope analysis was used to evaluate the α-HCH and γ-HCH transformations catalyzed by LinA1 and LinA2 enzymes. The results showed slight differences in the isotopic fractionation patterns of different enantiomers, but both enzymes exhibited similar reaction mechanisms during γ-HCH transformation.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Review
Environmental Sciences
Lin Yang, Ben Yu, Deming Han, Kun Zhang, Hongwei Liu, Cailing Xiao, Ligang Hu, Yongguang Yin, Jianbo Shi, Guibin Jiang
Summary: The oceans are important reservoirs of mercury (Hg) and have a significant role in the global biogeochemical cycling of Hg. Understanding the mechanisms of Hg cycling in marine ecosystems is crucial for assessing its risks to wildlife and humans. The stable Hg isotope technique is a powerful tool for studying Hg sources and processes. This review summarizes recent advances in marine Hg biogeochemical cycling from an isotopic tracing perspective, including sources of marine Hg, isotopic fingerprints, and applications in understanding pathways, transport, and transformation mechanisms in marine environments.
CRITICAL REVIEWS IN ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Engineering, Environmental
Clara Torrento, Violaine Ponsin, Christina Lihl, Thomas B. Hofstetter, Nicole Baran, Martin Elsner, Daniel Hunkeler
Summary: Although multielement isotope fractionation studies have been well-established for point-source pollution, they are only emerging for diffuse pollution by micropollutants like pesticides. This study found that chlorine isotope fractionation can be a robust indicator of chloroacetanilide degradation, with distinct patterns observed for different degradation pathways. The 3D isotope approach allows for differentiation of transformations that may not be distinguishable based on C and N isotope data alone.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Wei Zhang, Guangyi Sun, Runsheng Yin, Xinbin Feng, Zuxiu Yao, Xuewu Fu, Lihai Shang
Summary: The study developed an offline two-round purging-trapping method for separating MeHg from biological samples, which allows for efficient MeHg separation and precise analysis. The method showed high MeHg recoveries with similar accuracy and uncertainty to existing methods.
JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY
(2021)
Article
Biotechnology & Applied Microbiology
Songsong Chen, Limin Ma, Guodong Yao, Yuncai Wang
Summary: This study demonstrated the effectiveness of using a mixed culture of atrazine-degrading bacteria to improve atrazine removal in constructed wetlands. The results showed that atrazine was primarily degraded through a hydrolysis pathway mediated by microorganisms. Stable isotope analysis supported the findings, showing that 90% of atrazine was removed biologically.
INTERNATIONAL BIODETERIORATION & BIODEGRADATION
(2023)
Article
Geochemistry & Geophysics
S. Klemme, F. Genske, P. A. Sossi, J. Berndt, C. J. Renggli, A. Stracke
Summary: The new experimental results reveal fractionation of Cr isotopes during degassing of silicate melts. Lighter isotope Cr-52 is enriched in the gas phase and residual melt becomes enriched in the heavier Cr-53 isotope. This study provides important clues for understanding the recording of chromium isotope loss by evaporation in terrestrial magmas.
Editorial Material
Engineering, Environmental
Alain Manceau
Summary: Some birds and cetaceans can convert toxic methylmercury cysteinate into inert mercury sulfide through the formation of an intermediate selenolate complex. The nucleation of HgSe biominerals involves the substitution of the selenium ligand, which is mediated by proteins. A recent study isolated HgSe nanoparticles from giant petrels and analyzed the isotopic fractionation. The researchers concluded that the HgSe nanoparticles have specific isotopic values and that there is no fractionation of the 202Hg isotope during the reaction. However, a different perspective suggests that the HgSe nanoparticles are mixtures of different substances and that the 202Hg isotope is indeed fractionated during the reaction.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
Sheng-Nan Zhang, Yi Gu, Zhen-Li Zhu, Sheng-Hong Hu, Peter M. Kopittke, Fang-Jie Zhao, Peng Wang
Summary: The analysis of Cd isotope ratios in soil, rice grain, and human urine samples from two Cd-contaminated regions in southern China revealed a preferential enrichment of heavy Cd isotopes from soil to rice grain and from grain to urine. The fractionation of Cd isotopes in the soil-rice-human continuum is likely due to processes such as partitioning between the soil solid phase and soil solution, as well as preferential enrichment by metal transporters in humans.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Daniel Bouchard, Patrick Hohener, Didier Gori, Daniel Hunkeler, Tim Buscheck
Summary: Several types of laboratory experiments were conducted to evaluate isotope fractionation caused by phase transfer process for a selection of common environmental contaminants. Carbon and hydrogen isotope fractionation caused by vaporization of non-aqueous phase liquid (NAPL), volatilization from water, and dissolution into an organic solvent (TGDE) were investigated. The results showed significant isotope fractionation during NAPL vaporization and volatilization from water, while no significant fractionation was observed during the air-TGDE partitioning process, except for certain compounds.
Article
Engineering, Environmental
Shaochen Yang, Ping Li, Kaifeng Sun, Nan Wei, Jinling Liu, Xinbin Feng
Summary: Anthropogenic activities and climate change have led to increased mercury (Hg) levels in seawater, but the sources and processes of Hg in different marine compartments are not well understood. This study analyzed Hg concentrations and stable isotopes in seawater and fish samples collected from different marine compartments of the South China Sea to investigate Hg cycling in marine ecosystems. The results showed that estuarine seawater had higher Hg concentrations than marine continental shelf and pelagic seawater, and the sources of Hg varied in different compartments. This study highlights the importance of Hg stable isotopes for understanding Hg cycling in marine ecosystems.
Article
Geochemistry & Geophysics
Wenhong Johnson Qiu, Mei-Fu Zhou, Xiaochun Li, Fang Huang, John Malpas
Summary: The study investigates the formation of sediment-hosted stratiform sulfide (SHSS) deposits using Fe, S, and C isotopes. It found that pyrite grains in laminated ores and black shales from the Devonian Dajiangping SHSS-type pyrite deposit in South China exhibit different isotopic compositions, with positive Fe isotopic values in black shales indicating gradual crystallization from sediment-derived iron and negative Fe isotopic values in laminated ores due to kinetic fractionation in hydrothermal plumes.
GEOCHIMICA ET COSMOCHIMICA ACTA
(2021)
Article
Chemistry, Applied
Hongxia Li, Meijia Wu, Seng She, Guanghui Lin, Jinhui Zhou, Lanzhen Chen
Summary: A new idea and strategy for honey traceability and identification was provided by studying the carbon isotope fractionation of rape honey and its components. The moisture content of rape honey continued to decrease, and the glucose and fructose content continued to increase during the ripening process. The fractionation of carbon isotope from rape flowers to honey was significant, and the delta C-13 of rape honey and its components were mainly related to rape flowers and its stamens.
Article
Ecology
Peter Davies, John Robert Britton, Andrew D. Nunn, Jamie R. Dodd, Chris Bainger, Randolph Velterop, Jonathan D. Bolland
Summary: This study investigates the individual variation in the spawning migrations of sea lamprey, focusing on passage time and retreat behavior in fragmented rivers. The results show that the passage times vary across different barriers, potentially related to barrier characteristics and river discharge conditions. Retreat movements are also observed, and their frequency and distance vary among individuals. These behaviors are influenced by environmental conditions and the availability of alternative migration routes.
FRESHWATER BIOLOGY
(2022)
Article
Fisheries
Caterina Maria Antognazza, Stephen J. Sabatino, Robert J. Britton, Rob J. Hillman, Miran Aprahamian, Emilie A. Hardouin, Demetra Andreou
Summary: The study aimed to evaluate the impact of human disturbances on the genetic introgression and population structure of shad in Great Britain by genotyping 119 Alosa spp. using 24 microsatellite loci. It was found that navigation weirs constructed in the past negatively affected the spawning migrations of shad in river systems across Great Britain.
JOURNAL OF FISH BIOLOGY
(2022)
Review
Fisheries
John Robert Britton
Summary: Introductions of non-native freshwater fish are increasing globally, but only a small proportion result in invasions. These invasive populations can have ecological impacts through various processes, some of which are harmful enough to be considered contributors to ecosystem collapse.
JOURNAL OF FISH BIOLOGY
(2023)
Review
Environmental Sciences
J. Robert Britton, Abigail J. Lynch, Helge Bardal, Stephanie J. Bradbeer, Julie A. Coetzee, Neil E. Coughlan, Tatenda Dalu, Elena Tricarico, Belinda Gallardo, Mark Lintermans, Frances Lucy, Chunlong Liu, Julian D. Olden, Rajeev Raghavan, Eleri G. Pritchard
Summary: The Emergency Recovery Plan for freshwater biodiversity recognizes that addressing nonnative species is one of the key actions to prevent loss of freshwater biodiversity. The plan emphasizes the importance of preventing introductions of nonnative species, but also highlights the need for early detection and rapid reaction measures in case of introduction. Control and containment measures are recommended for invasive species, along with invasion risk assessment and species-specific eradication methods.
ENVIRONMENTAL REVIEWS
(2023)
Article
Fisheries
Fatima Amat-Trigo, Demetra Andreou, Phillipa K. Gillingham, J. Robert Britton
Summary: Behavioural thermoregulation allows freshwater fish to adapt to different temperature environments, especially in extreme thermal conditions. Fish of different species and spatial scales move in response to temperature changes, with age and migratory ability affecting their tolerance to temperature differences. Research has primarily focused on studying the behavior of cold-water salmonids during summer, leaving a need for further study on the thermoregulatory behaviors of other non-salmonid fishes in warming conditions.
FISH AND FISHERIES
(2023)
Article
Environmental Sciences
Silvia Quadroni, Vanessa De Santis, Antonella Carosi, Isabella Vanetti, Serena Zaccara, Massimo Lorenzoni
Summary: Local adaptation and phenotypic plasticity can lead to variations in morphology and genetics in freshwater fish. Studying fish responses to environmental changes is important for understanding their vulnerability to human-induced changes. In this study, a latitudinal gradient was used to explore the influences of past and present environmental factors on genetic and morphological patterns in barbels, a biogeographic model in the Italian Peninsula. The results showed an increase in private haplotypes towards the south, suggesting the isolation of southern populations. Morphology, on the other hand, was mainly affected by current environmental conditions.
Article
Biodiversity Conservation
Paul Castagne, Ivan Paz-Vinas, Stephanie Bouletreau, Jessica Ferriol, Geraldine Loot, Charlotte Veyssiere, Robert Arlinghaus, Robert Britton, Marlene Chiarello, Emili Garcia-Berthou, Pavel Horky, Delphine Nicolas, Annamaria Nocita, Oscar Nordahl, Michaël Ovidio, Filipe Ribeiro, Ondrej Slavik, Chloe Vagnon, Simon Blanchet, Frederic Santoul
Summary: Biological invasions are a significant component of global change, but they can also have negative impacts on native populations. Efficient management policies are needed to prevent the spread of invasive species in non-native areas while protecting native populations. Genetic variation analysis can help assess the genetic state, identify invasion pathways, determine management strategies, and identify populations requiring conservation measures.
BIODIVERSITY AND CONSERVATION
(2023)
Article
Evolutionary Biology
Miguel Baltazar-Soares, J. Robert Britton, Adrian Pinder, Andrew J. Harrison, Andrew D. Nunn, Bernardo R. Quintella, Catarina S. Mateus, Jonathan D. Bolland, Jamie R. Dodd, Pedro R. Almeida, Victoria Dominguez Almela, Demetra Andreou
Summary: This study provided the first genome-wide characterization of genetic diversity in the European range of sea lamprey. It revealed a single metapopulation that includes freshwater spawning sites within the North Eastern Atlantic and the North Sea, with some limitations to dispersal at northern latitudes. The study also found that oxygen concentration and river runoffs impose spatially varying selection pressures across their distribution range in the ocean.
EVOLUTIONARY APPLICATIONS
(2023)
Article
Marine & Freshwater Biology
Mark I. A. Yeldham, J. Robert Britton, Charles Crundwell, Peter Davies, Jamie R. Dodd, Andrew D. Nunn, Randolph Velterop, Jonathan D. Bolland
Summary: The timing of entry into freshwater by mature anadromous fishes is determined by migration cues, particularly photoperiod, and shows high individual repeatability. This study used passive acoustic telemetry to track 71 twaite shad returning to the River Severn's upper estuary over multiple spawning seasons, and found that the timing of river entry was consistent between years and strongly predicted by increasing day length. Water temperatures and flow rates, however, were weak predictors and highly variable between years. The results highlight the importance of understanding migration cues and their variability in assessing the migration phenology of anadromous species.
Review
Fisheries
J. Robert Britton, Adrian C. Pinder, Josep Alos, Robert Arlinghaus, Andy J. Danylchuk, Wendy Edwards, Katia M. F. Freire, Casper Gundelund, Kieran Hyder, Ivan Jaric, Robert Lennox, Wolf-Christian Lewin, Abigail J. Lynch, Stephen R. Midway, Warren M. Potts, Karina L. Ryan, Christian Skov, Harry V. Strehlow, Sean R. Tracey, Jun-ichi Tsuboi, Paul A. Venturelli, Jessica L. Weir, Marc Simon Weltersbach, Steven J. Cooke
Summary: The global COVID-19 pandemic led to restrictions on people's movements in many jurisdictions, affecting recreational angling. After the restrictions were lifted, initial surveys suggested increased participation and altered angler demographics, but evidence remained limited. This study examines changes in angling interest, licence sales, and angling effort in different regions during the 'pre-pandemic,' 'acute pandemic,' and 'COVID-acclimated' periods. It suggests that efforts to retain younger anglers and provide more urban angling opportunities could increase overall participation levels and enhance resilience in recreational fisheries.
REVIEWS IN FISH BIOLOGY AND FISHERIES
(2023)
Review
Fisheries
Dani Latorre, Guillem Maso, Carlos Cano-Barbacil, Jose M. Zamora-Marin, David Almeida, Lorenzo Vilizzi, J. Robert Britton, Alejandra Cruz, Carlos Fernandez-Delgado, Anni G. Gonzalez-Rojas, Rafael Miranda, Francesc Rubio-Gracia, Ali Serhan Tarkan, Mar Torralva, Anna Vila-Gispert, Gordon H. Copp, Filipe Ribeiro
Summary: The bleak Alburnus alburnus is a medium-sized leuciscid fish that is naturally distributed across central European and western Asian fresh waters. It has been widely introduced in Europe and northern Africa as a forage species for game fishes. In its native range, it feeds mainly on zooplankton, but non-native populations show high phenotypic plasticity in their biological attributes, adapting to local environmental conditions and invading different ecosystems. This plasticity, coupled with broad physiological tolerance, is likely to facilitate its adaptation and invasion of new habitats in the future.
REVIEWS IN FISH BIOLOGY AND FISHERIES
(2023)
Article
Marine & Freshwater Biology
Irmak Kurtul, Ali Serhan Tarkan, J. Robert Britton
Summary: Non-lethal sampling methods can be used for trophic studies on inshore flatfish populations of high value. Fin tissue and epidermal mucus can serve as alternatives to muscle for stable isotope analysis. Differences in isotopic values can be predicted and converted using linear regression. These tissue alternatives allow for non-lethal sampling and analysis of flatfish populations.
ESTUARINE COASTAL AND SHELF SCIENCE
(2023)
Article
Marine & Freshwater Biology
Bertram I. C. Warren, Adrian C. Pinder, Ben Parker, A. Serhan Tarkan, J. Robert Britton
Summary: This study assessed the trophic ecology of a translocated chub population using stable isotope metrics and compared it with native chub populations. The results suggest that the colonization of lowland rivers by translocated chub is facilitated by their isotopic relationships with other fishes similar to those observed in their native range.
Article
Fisheries
Irmak Kurtul, Ali Serhan Tarkan, J. Robert Britton
Summary: Studies show that scale and fin tissue can be used as non-lethal alternatives for stable isotope analysis in European perch and pumpkinseed populations. Conversion equations are provided to standardize the values of scale and fin tissue to dorsal muscle values for comparative studies.
KNOWLEDGE AND MANAGEMENT OF AQUATIC ECOSYSTEMS
(2023)
Review
Environmental Sciences
J. Robert Britton, Abigail J. Lynch, Helge Bardal, Stephanie J. Bradbeer, Julie A. Coetzee, Neil E. Coughlan, Tatenda Dalu, Elena Tricarico, Belinda Gallardo, Mark Lintermans, Frances Lucy, Chunlong Liu, Julian D. Olden, Rajeev Raghavan, Eleri G. Pritchard
Summary: The Emergency Recovery Plan for freshwater biodiversity emphasizes the importance of addressing nonnative species as one of the primary actions to protect freshwater biodiversity. Prevention of introductions is the most effective management measure, while early detection and rapid reaction can prevent establishment and dispersal. If a species becomes invasive, control and containment measures can minimize its spread and impact.
ENVIRONMENTAL REVIEWS
(2023)
Article
Fisheries
Miguel Petrere Jr, Davi Butturi-Gomes
Summary: This short communication aims to raise awareness about the misuse of confidence intervals in Ecology and Fisheries statistical models that ignore the lack of independence.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Peter-John F. Hulson, Benjamin C. Williams
Summary: This study evaluates the impact of considering ageing error and growth variability on the determination of input sample size (ISS) in statistical catch-at-age assessment models. The results show that including these sources of uncertainty decreases the ISS determined through bootstrap methods. This indicates that there is more variability in age composition and conditional age-at-length data than previously accounted for. Including these sources of uncertainty improves the estimation of ISS and subsequently improves the quality of stock assessment models.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Jason M. Cope
Summary: Fishery resource assessment is a complex and challenging task, but with the use of different analysis methods and tools, effective management guidance can be provided even with limited data and resources.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Regina L. Cunha, Joana I. Robalo, Sara M. Francisco, Ines Farias, Rita Castilho, Ivone Figueiredo
Summary: Recent advances in genomics have greatly contributed to the assessment of fish stocks by providing precise identification of genetic boundaries. This study used a genotyping-by-sequencing approach to reveal the existence of an additional genetic cluster of blackspot seabream in the northeast Atlantic, which was not previously identified. Factors such as ocean circulation patterns and local upwelling may play a role in the genetic differentiation observed in this study.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Huihua Lee, Mark N. Maunder, Kevin R. Piner
Summary: Estimating growth is important for fish population assessment. Integrated assessment models and the influence of misfitting size composition data have renewed interest in how growth is modeled. The available data types control how the length-at-age relationship is estimated. Estimating length-at-age is complex due to multiple sources of biological variability and difficulties in obtaining representative samples.
FISHERIES RESEARCH
(2024)
Article
Fisheries
A. Ladino, I. Perez-Arjona, V. Espinosa, M. Chillaron, V. Vidal, L. M. Godinho, G. Moreno, G. Boyra
Summary: This study examines the acoustic properties of skipjack tuna and Atlantic mackerel, both bladderless pelagic fish species, and explains the significant differences observed. The research shows that the differences in material properties of their tissues predict a more than 10 dB greater reduced target strength in skipjack compared to mackerel at certain frequencies.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Nelly Pena-Cutimbo, Cristel Cordero-Maldonado, Clara Ortiz-Alvarez, Joanna Alfaro-Shigueto, Jeffrey C. Mangel
Summary: Bycatch is a global problem for marine megafauna. This study assessed the bycatch interactions of the Peruvian artisanal purse-seine fishery in 2019 and found that all taxa groups were affected by bycatch. Dusky dolphins, guanay cormorants, and eagle rays were the most frequently reported bycatch species.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Jen-Ming Liu, Po-Yuk So
Summary: The set-net fishery is an environmentally friendly fishery posing little risk to the marine ecosystem. This study identified ocean temperature, sea surface factors, and climatic factors as the main factors affecting the installation of set-nets.
FISHERIES RESEARCH
(2024)
Article
Fisheries
Josie L. Palmer, Carina Armstrong, Hasan D. Akbora, Damla Beton, Cigdem Caglar, Brendan J. Godley, Kristian Metcalfe, Meryem Ozkan, Robin T. E. Snape, Annette C. Broderick
Summary: Small-scale fisheries are vital for global food security and cultural heritage, but the lack of information hampers effective management and mitigation of ecological impacts. This study provides the first comprehensive overview of the small-scale fishery fleet in Northern Cyprus. The fleet operates mainly over the continental shelf, using static and demersal gear types, and catches a diverse range of species, some of which are threatened. The findings can be used to improve fisheries management and conservation measures.
FISHERIES RESEARCH
(2024)
