Article
Environmental Sciences
Macarena Diaz-Astudillo, Ramiro Riquelme-Bugueno, Kim S. Bernard, Gonzalo S. Saldias, Reinaldo Rivera, Jaime Letelier
Summary: This study analyzed the population dynamics of krill in the Humboldt Current System and found that factors such as temperature, oxygen levels, and upwelling have significant impacts on krill abundance. Additionally, the distribution and biomass of the Peruvian anchovy are also found to interact with the abundance of Humboldt krill. The research results reveal the potential effects of climate change and extreme events on the distribution and trophic interactions of krill in this system.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Oceanography
Jorge E. Gonzalez, Beatriz Yannicelli, Wolfgang Stotz
Summary: Controlled access areas, such as Marine Protected Areas (MPAs) and Territorial Use Rights for Fisheries (TURF), are tools aimed at contributing to ecosystem conservation and fisheries sustainability. The study of the Management and Exploitation Areas for Benthic Resources (MEABR) in Chile revealed that ecosystem indexes increased primarily in response to changes in environmental conditions and their effects on community interactions, indicating the importance of considering ecological factors in resource management.
OCEAN & COASTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Jana C. Massing, Anna Schukat, Holger Auel, Dominik Auch, Leila Kittu, Elda Luz Pinedo Arteaga, Jonathan Correa Acosta, Wilhelm Hagen
Summary: The northern Humboldt Current upwelling system is one of the most productive marine ecosystems, with fisheries landings five to eight times higher than other coastal upwelling systems. A study was conducted to understand the pelagic food-web structure and trophic interactions in this system. The study found regional shifts in the food web and differences in δN-15 ratios between surface waters and the oxygen minimum zone. Additionally, the role of benthic-pelagic coupling and the importance of certain key species in the zooplankton community were identified.
FRONTIERS IN MARINE SCIENCE
(2022)
Review
Environmental Sciences
Romulo E. Loayza-Aguilar, Yolanda P. Huamancondor-Paz, Guillermo B. Saldana-Rojas, Gustavo E. Olivos-Ramirez
Summary: The development of industrial mariculture in Peruvian coasts will continue to grow but its monospecific nature has negative impacts on the ecosystem, biodiversity, and fishery resources. To address these issues, a sustainable production model called Integrated Multi-Trophic Aquaculture (IMTA) is proposed for Argopecten purpuratus cultivation in Samanco Bay. This model aims to achieve greater efficiency, competitiveness, and profitability while ensuring environmental balance. The adoption of this model can be adapted to other scenarios, and collaboration between academia, private companies, and relevant authorities is crucial in this process.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Valentina Villa, Nicolas Bermeo, Antoine Zazzo, Christine Lefevre, Philippe Bearez, Denis Correa, Elise Dufour, Aurelie Manin, Lucie Dausse, Belkys Gutierrez, Segundo Vasquez, Aurelien Christol, Jean-Jacques Bahain, Nicolas Goepfert
Summary: The Sechura Desert in Peru, located between the cultures of southern Ecuador and the northern Peruvian coast, has preserved numerous archaeological sites. However, little is known about the societies that inhabited this region during the Holocene. A multidisciplinary study of the Huaca Grande mound reveals a varied nature of human occupations and changes over time, with the appearance of non-local resources indicating trade connections. The occupation of the site seems to have been influenced by local climate changes and extreme El Nino events, highlighting the adaptability of these human groups.
Article
Ecology
Mariana Hill Cruz, Ivy Frenger, Julia Getzlaff, Iris Kriest, Tianfei Xue, Yunne-Jai Shin
Summary: The Northern Humboldt Current System is the most productive eastern boundary upwelling system, contributing significantly to global fish production. The high variability of small pelagic fish in this system, as well as their economic importance, call for careful management aided by end-to-end models.
ECOLOGICAL MODELLING
(2022)
Article
Fisheries
Lisa Chong, Nicholas Fisch, John Scott Borsum, Jennifer Granneman, Diana Perry, Gabrielle Love, Brittany Hall-Scharf, Robert Botta, Kai Lorenzen, Edward Camp, Zachary Siders
Summary: The life history schedule of short-lived species affects harvest timing decisions, and intense harvest before reproduction could wipe out a population. Commercial fisheries often use advanced forecasts and monitoring to manage annual or semelparous species, but recreational fisheries lack sufficient monitoring and control. A simulation model was used to identify effective management regulations for the Florida bay scallop fishery, showing that regulations aligned with the biology and life history of the species performed better.
FISHERIES RESEARCH
(2023)
Article
Fisheries
Lei Xing, Yong Chen, Robert Boenish, Kisei R. Tanaka, Nicolas Barrier, Yiping Ren
Summary: The study suggests that managing fishing seasonality and considering trophic interactions resulting from migratory species dynamics can mitigate the negative impact of fishing intensity on marine ecosystems, especially on two resident high-trophic-level fishes. Additionally, fishing also alters the impact of varying migratory biomass of Trachypenaeus curvirostris on other species.
FISHERIES RESEARCH
(2021)
Article
Fisheries
Pierre Bourdaud, Frida Ben Rais Lasram, Emma Araignous, Juliette Champagnat, Samantha Grusd, Ghassen Halouani, Tarek Hattab, Boris Leroy, Quentin Nogues, Aurore Raoux, Georges Safi, Nathalie Niquil
Summary: Climate change has irreversible impacts on ecosystems, with a focus on predicting future distribution of marine species biomass at the community level. The study in the Bay of Seine demonstrates that climate change scenarios can influence species dynamics and ecosystem stability, emphasizing the importance of considering trophic interactions in simulations to efficiently forecast potential impacts.
FISHERIES OCEANOGRAPHY
(2021)
Article
Fisheries
Raphael R. McDonald, David M. Keith, Jessica A. Sameoto, Joanna Mills Flemming
Summary: Recent ocean mapping efforts have increased the availability of seafloor habitat data. Incorporating habitat information into stock assessment models improves the understanding of population productivity and enhances the accuracy of the models. A spatio-temporal biomass dynamics model that incorporates habitat information has been developed and successfully demonstrated through simulation experiments and application to sea scallop fishery data in the Bay of Fundy in Canada.
ICES JOURNAL OF MARINE SCIENCE
(2023)
Article
Marine & Freshwater Biology
Cristian Moreno, Javier Quinones
Summary: This study reports on the presence of albatrosses and petrels associated with a small-scale fishery for Humboldt Squid in the waters of southern Peru. The most observed species were White-chinned Petrels and Waved Albatross, followed by Salvin's Albatross, Chatham Albatross, and Cape Petrels. Most of the birds were observed when the fishing vessels were positioned over the continental slope. The birds consumed offal discards associated with the fishery, and the bycatch rate was found to be low. The presence of certain species, such as the Waved Albatross, was higher than expected.
MARINE ORNITHOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Paul M. Tuda, Matthias Wolff
JOURNAL OF MARINE SYSTEMS
(2018)
Review
Fisheries
Lotta C. Kluger, Marc H. Taylor, Matthias Wolff, Wolfgang Stotz, Jaime Mendo
REVIEWS IN AQUACULTURE
(2019)
Article
Ecology
R. Schwamborn, T. K. Mildenberger, M. H. Taylor
ECOLOGICAL MODELLING
(2019)
Article
Fisheries
Julian Espitia, Jorge Paramo, Matthias Wolff
LATIN AMERICAN JOURNAL OF AQUATIC RESEARCH
(2019)
Article
Fisheries
Ismael Nunez-Riboni, Marc H. Taylor, Alexander Kempf, Miriam Puets, Moritz Mathis
ICES JOURNAL OF MARINE SCIENCE
(2019)
Article
Fisheries
Lisa Chong, Tobias K. Mildenberger, Merrill B. Rudd, Marc H. Taylor, Jason M. Cope, Trevor A. Branch, Matthias Wolff, Moritz Staebler
ICES JOURNAL OF MARINE SCIENCE
(2020)
Article
Ecology
Miriam Puets, Marc Taylor, Ismael Nunez-Riboni, Jeroen Steenbeek, Moritz Staebler, Christian Moellmann, Alexander Kempf
ECOLOGICAL MODELLING
(2020)
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)
Article
Ecology
Bernhard Kuehn, Marc H. Taylor, Alexander Kempf
Summary: The study addresses the challenges of marine organism growth and mortality processes influenced by environmental variability, proposing a machine learning framework for identifying key environmental variables. It employs a multi-objective genetic algorithm and rigorous cross-validation to reduce model complexity, applied to the recruitment of North Sea cod stock.
MARINE ECOLOGY PROGRESS SERIES
(2021)
Article
Oceanography
Marc H. Taylor, Anna Akimova, Astrid Bracher, Alexander Kempf, Bernhard Kuhn, Pierre Helaouet
Summary: This study investigates the formation and dynamics of ocean color (OC) provinces in the North Sea, revealing that the variability of OC provinces is likely driven by the interaction between large-scale circulation and local wind-driven currents. The study demonstrates that the perspective offered by OC provinces helps elucidate spatiotemporal patterns of plankton and is proposed as a novel operational index for additional exploration of ecosystem functioning.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2021)
Article
Fisheries
Bernhard Kuehn, Alexander Kempf, Thomas Brunel, Harriet Cole, Moritz Mathis, Klaas Sys, Vanessa Trijoulet, Youen Vermard, Marc Taylor
Summary: Technical interactions, bycatch regulations, and climate change effects pose challenges for North Sea demersal mixed fisheries. A bioeconomic model was used to analyze management options considering these factors. Implementation of a landing obligation leads to short-term yield and profit decrease due to climate-induced productivity changes, while fishing above sustainable limits or limiting quota changes may buffer initial losses but result in decreased profits in the long term. Economic performance of fleets is linked to target stock status, cost structure, and fuel and fish prices. The study emphasizes considering both biological and economic consequences of climate change in mixed fisheries management.
FISHERIES MANAGEMENT AND ECOLOGY
(2023)
Review
Fisheries
Ming Sun, Yunzhou Li, Lisa Suatoni, Alexander Kempf, Marc Taylor, Elizabeth Fulton, Cody Szuwalski, Maria Teresa Spedicato, Yong Chen
Summary: Mixed fisheries refer to the situation where multiple species are caught together and harvested by different fleets. They present unique challenges for assessment and management due to their biological and technical interactions, distinguishing them from single-species fisheries. This knowledge synthesis reviewed global mixed fisheries to characterize their attributes, provide overviews on assessment and management, assess research progress, and identify key factors affecting management effectiveness. The study found diverse characteristics of mixed fisheries worldwide, making universal management solutions unlikely. However, incorporating ecosystem-wide management considerations proved to be the most significant contributor to improved management performance.
REVIEWS IN FISHERIES SCIENCE & AQUACULTURE
(2023)
Article
Ecology
Manon Fourriere, Juan Jose Alvarado, Jorge Cortes, Marc H. Taylor, Arturo Ayala-Bocos, Juan Carlos Azofeifa-Solano, Randall Arauz, Maike Heidemeyer, Andres Lopez-Garro, Ilena Zanella, Matthias Wolff
ECOLOGICAL MODELLING
(2019)