Article
Marine & Freshwater Biology
Claudia Moreira, Elsa Froufe, Paulo Vaz-Pires, Raul Triay-Portella, Ana Mendez, Jorge Pisonero Castro, Alberto Teodorico Correia
Summary: This study used LA-ICP-MS to investigate the otolith chemical fingerprints of the blue jack mackerel and found significant differences among locations. The results suggest that self-recruitment occurs in the fishing grounds and varies among different age groups. The study also highlights the importance of managing T. picturatus populations as different population units in the northeastern Atlantic.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Oceanography
Ines Farias, Silvia Perez-Mayol, Sofia Vieira, Paulo B. Oliveira, Ivone Figueiredo, Beatriz Morales-Nin
Summary: This study explores the use of otolith microchemical composition as a tool to differentiate A. carbo specimens caught in different areas, and studies the potential birth areas and spatial migration patterns throughout the species' life cycle. The results show that otolith microchemical composition can discriminate the locations where specimens were caught, supporting the separation between the northern and southern distribution areas of A. carbo. The study also suggests the existence of two natal sources and confirms the migratory behavior of A. carbo.
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
(2022)
Article
Fisheries
Lola Coussau, Dominique Robert, Pascal Sirois
Summary: Connectivity processes play a crucial role in the resiliency of fish populations against overexploitation. This study utilized otolith elemental fingerprints to determine the origins and movements of Deepwater redfish in the Gulf of St. Lawrence. The research identified an East to West gradient in the multi-elemental fingerprint of the otolith edge and observed temporal variation between 2016 and 2018. Cluster analysis of the core fingerprint revealed two chemically distinct natal sources, providing important knowledge for the assessment and sustainable management of redfish.
FISHERIES RESEARCH
(2023)
Article
Fisheries
Peter Fink-Jensen, Teunis Jansen, Tonny Bernt Thomsen, Simon Hansen Serre, Karin Huessy
Summary: Due to a lack of biological information on population structure and spatial dynamics of capelin that spawn in Greenland, there is currently no sustainable fisheries management advice available. This study analyzed chemical tracers in otoliths from 549 spawning capelin to provide a chemical baseline for investigations of migration and population structure in Greenlandic waters. The results demonstrate the applicability of otolith chemistry as a tracer of physicochemical variation in an arctic marine environment undergoing rapid climatic changes.
FISHERIES RESEARCH
(2021)
Article
Marine & Freshwater Biology
Carissa L. Gervasi, James A. Nelson, Peter K. Swart, Rolando O. Santos, Ryan J. Rezek, W. Ryan James, Amanda E. Jefferson, J. Marcus Drymon, Jessica Carroll, Ross E. Boucek, Jennifer S. Rehage
Summary: Developing conservation and management strategies for species with complex life histories, broad spatial distributions, and long lifespans is difficult, especially when managers cannot identify critical habitats or vulnerable life stages due to migration scale or connectivity uncertainty. Otolith stable isotope micro-sampling is a useful tool for examining broad-scale movement and migration patterns of fishes. Results from comparing Crevalle Jack in different regions showed differences in ontogenetic movement patterns and connectivity.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Marine & Freshwater Biology
Nils Teichert, Anne Lize, Helene Tabouret, Claudia Gerard, Gilles Bareille, Anthony Acou, Alexandre Carpentier, Thomas Trancart, Laure-Sarah Virag, Emma Robin, Morgan Druet, Jordan Prod'Homme, Eric Feunteun
Summary: River fragmentation affects the movement patterns, distribution, and life-history traits of eels. This study used otolith multi-elemental signatures to reconstruct the life sequences of European silver eels in an obstructed catchment. The results show that eels' spatial distribution influences their life-history traits, including condition coefficient, trophic level, growth rate, and infection by metazoan parasites. The dam removals will provide an important opportunity to evaluate the impacts of catchment reconnection.
Article
Environmental Sciences
Esteban Avigliano, Ana Ibanez, Nidia Fabre, Roberta Callico Fortunato, Ana Mendez, Jorge Pisonero, Alejandra V. Volpedo
Summary: The study revealed that white mullet mainly migrate between estuarine and marine habitats, with 11.1% classified as marine estuarine opportunists and 87.1% classified as estuarine migrants. Additionally, the research also revealed the patterns and frequencies of mullet migration in different salinity environments.
AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
(2021)
Article
Fisheries
Kali R. Stone, Craig R. Kastelle, Irina M. Benson, Thomas E. Helser, Jonathan A. Short, Sukyung Kang
Summary: By using otolith microchemistry, this study investigated the stock structure and migratory trends of Pacific cod around the Korean Peninsula, identifying two distinct stocks and supporting natal philopatry in the species. Analysis of elemental signatures revealed clear ontogenetic migration trends in the first 2 years of life.
MARINE AND FRESHWATER RESEARCH
(2021)
Article
Fisheries
Maylis Labonne, Hicham Masski, Sophia Talba, Imane Tai, Khalid Manchih, Rachid Chfiri, Raymond Lae
Summary: The Moroccan Atlantic coast is part of a highly productive marine ecosystem, but little is known about the structure of its fish populations. This study analyzed the otolith elemental signatures of hake and sardine sampled along the coast and found significant differences in their composition, with distinct northern and southern groups. These findings have important implications for fisheries management and stock structure.
FISHERIES RESEARCH
(2022)
Article
Multidisciplinary Sciences
Rodrigo Ramirez-Alvarez, Sergio Contreras, Aurelien Vivancos, Malcolm Reid, Ruby Lopez-Rodriguez, Konrad Gorski
Summary: Longitudinal movement plays a crucial role in the habitat colonization and population establishment of riverine fish species. However, the fine-scale movement patterns and recruitment habitats of amphibious fish species are still poorly understood. This study analyzed the ear-bones of Galaxias maculatus to assess its fine-scale longitudinal movement variability and found that it predominantly recruits in freshwater and estuarine habitats, with slow-flowing or stagnant habitats providing suitable prey for its larvae.
SCIENTIFIC REPORTS
(2022)
Article
Fisheries
Pavel B. Mikheev, Matt G. Jarvis, Christoph D. Matthaei, Travis Ingram, Malcolm R. Reid, Andrey I. Nikiforov, Igor S. Chernienko, Gerard P. Closs
Summary: The study estimated the relative importance of straying and homing in introduced brown trout spawning in a New Zealand river using otolith microchemistry. Results showed a large proportion of brown trout spawners in Silverstream were strays, likely due to the geomorphology of the catchment, highlighting the adaptability of brown trout to different environmental contexts.
ECOLOGY OF FRESHWATER FISH
(2021)
Article
Biology
Matthias Vignon, Heilene Tabouret, Jean-Christophe Aymes, Christophe Pecheyran, Jacques Rives, Pascale Coste-Heinrich, Emmanuel Huchet, Gilles Bareille
Summary: Ecologists have been interested in techniques to track fish movement patterns. The elemental composition of otoliths provides a record of a fish's habitats and is increasingly used in literature. However, the lack of understanding about the individual processes underlying ion incorporation/depletion limits our interpretation of the chemical signal recorded in otoliths. In this study, we conducted controlled experiments on individual trace element effects in Salmo trutta and found significant time lags between water chemistry changes and otolith composition changes, as well as variations based on metabolic rate.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2023)
Article
Environmental Sciences
Guanglong Tang, Zehua He, Yong Liu, Yayuan Xiao, Sheng Bi, Ye Sun, Jiman Liang, Peng Wu, Teng Wang, Jinyu Ye, Chunhou Li
Summary: This study investigated the spawning grounds and habitat use patterns of Acanthopagrus latus in the waters surrounding the Wanshan Islands in China. The findings revealed that the spawning area of A. latus originated from low to medium-salinity waters with mangroves and oyster farm habitats in the Pearl River Estuary. A. latus showed widespread migration between estuarine and marine habitats throughout its life cycle. These results have important implications for future fisheries management.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Iraide Artetxe-Arrate, Igaratza Fraile, Jessica Farley, Audrey M. Darnaude, Naomi Clear, Naiara Rodriguez-Ezpeleta, David L. Dettman, Christophe Pecheyran, Inigo Krug, Anais Medieu, Mohamed Ahusan, Craig Proctor, Asep Priatna, Pratiwi Lestari, Campbell Davies, Francis Marsac, Hilario Murua
Summary: The study examined the potential of otolith microchemistry in understanding the spatial dynamics of skipjack tuna, a valuable commercial species in the Indian Ocean. Differences in otolith chemical signatures were observed among individuals from different nursery areas, but there was significant overlap in the signatures of the three nurseries. Cohort effects on otolith trace element signatures were detected, highlighting the importance of understanding seasonal variations in oceanographic conditions for species with multiple reproductive peaks throughout the year.
Article
Fisheries
Peter Fink-Jensen, Karin Hussy, Tonny Bernt Thomsen, Simon Hansen Serre, Jens Sondergaard, Teunis Jansen
Summary: This study examines the spatial population structure of capelin in West Greenland and finds that they mostly reside within one region throughout their life. The analysis of otolith microchemistry indicates the existence of local residency and segregation of populations. Unlike other North Atlantic capelin stocks, West Greenland capelin do not exhibit long-distance migrations.
FISHERIES RESEARCH
(2022)