Article
Biodiversity Conservation
L. E. Calderon-Aguilera, H. Reyes-Bonilla, M. Olan-Gonzalez, F. R. Castaneda-Rivero, J. C. Perusquia-Ardon
Summary: Cabo Pulmo reef is a well-managed marine protected area in the southern Gulf of California, with various important energy flows in the ecosystem. Research shows that the reef complies with attributes to resist disturbances, providing high-quality ecosystem services and attracting developers. Despite the system's resilience, unregulated human activities may impact the condition of the reef.
ECOLOGICAL INDICATORS
(2021)
Article
Biodiversity Conservation
Jason E. Jannot, Rhema Bjorkland, Kayleigh A. Somers, Toby Mitchell, Vanessa J. Tuttle, Jon McVeigh
Summary: This study examined the impact of a shift to an Individual Fishing Quota (IFQ) program on elasmobranch catch in the US West Coast Groundfish Fishery (WCGF). The results showed a reduction in bycatch of non-managed elasmobranch species under the IFQ program, but no significant impact on other species caught by the IFQ fleet. The co-occurrence of ecomorphotypes within fisheries suggests natural management units for ecosystem-based fishery management.
ENDANGERED SPECIES RESEARCH
(2021)
Article
Environmental Sciences
B. G. Matthias, T. R. Hrabik, J. C. Hoffman, O. T. Gorman, M. J. Seider, M. E. Sierszen, M. R. Vinson, D. L. Yule, P. M. Yurista
Summary: Ecosystem-based management relies on understanding how perturbations influence ecosystem function, with Lake Superior serving as a unique case study due to its native species-dominated food web. Research findings show Lake Superior to be relatively efficient, with non-native species representing a small proportion of total biomass and exhibiting differences in efficiency compared to native species. The study offers valuable insights into the importance of the microbial loop and provides a baseline estimate of non-native species impacts on the ecosystem for further model development.
JOURNAL OF GREAT LAKES RESEARCH
(2021)
Article
Environmental Sciences
Mohamed Feroz Khan, Preetha Panikkar, Sibina Mol Salim, Ramya Vijayakumar Leela, Uttam Kumar Sarkar, Basanta Kumar Das, Vijayakumar Muttenahalli Eregowda
Summary: Invasive species like African catfish have a significant impact on the trophic structure and functioning of ecosystems. Observations from the study show strong competition and niche overlap exhibited by Clarias gariepinus, affecting various elements of the ecosystem. The findings will be useful for fishery managers in making informed decisions for ecosystem-based fishery management.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Jie Yin, Jun Xu, Ying Xue, Binduo Xu, Chongliang Zhang, Yunzhou Li, Yiping Ren
Summary: This study compared the impact of El Nino events on the Haizhou Bay ecosystem in China seas and selected four optimal ENA indicators, showing a shrunken ecosystem size, increased energetic efficiency, and less organized ecosystem under El Nino conditions.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Rongliang Zhang, Qianqian Zhang, Jianmin Zhao, Zhongxin Wu, Hui Liu, Lu Shou, Yibo Liao, Qinghe Liu, Yanbin Tang, Jiangning Zeng
Summary: This study compares the trophic structure and energy flow between natural and artificial reefs. The results show that the ecosystem scale is smaller in the artificial reef, but the energy distribution at different trophic levels is similar. The artificial reef also has a higher connectivity index and system omnivory index, indicating complex interspecies relations and high-level stability.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Siby Mariya Sandra, G. B. Sreekanth, K. Ranjeet
Summary: The downstream area of Chalakudy River is facing multiple risks such as pollution, saline water ingression, sand mining, illegal and intensified fishing practices, and invasion of exotic and alien species. The research findings suggest that DCR is an immature ecosystem with moderate strength to resist external perturbations.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Marine & Freshwater Biology
Alex Souza Lira, Flavia Lucena-Fredou, Carlos Henrique Figueiredo Lacerda, Leandro Nole Eduardo, Valdimere Ferreira, Thierry Fredou, Frederic Menard, Ronaldo Angelini, Francois Le Loc'h
Summary: The study investigates the food web structure and trophic interactions of Brazilian tropical estuaries using trophodynamic models. The findings suggest that certain commercially valuable species are ecologically important and lack fishing regulations. The impacts of fisheries on different trophic levels vary across ecosystems. This study provides valuable insights into the understanding of the trophic functioning and fishery effects on estuarine ecosystems.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Article
Fisheries
Trivesh S. Mayekar, G. B. Sreekanth, Venkatesh Paramesh, Parveen Kumar, Amit S. Patil, Sajiya Yusuf Mujawar, Anita Mathew
Summary: An integrated farming system (IFS) is an agricultural approach that promotes conservation of agrobiodiversity, food security, ecosystem services, environmental quality, and sustainability. This study analyzed the energy transfer and trophic organization in an IFS in India's western coast, using an Ecopath model. The findings showed high efficiency and consumption rates in the system, indicating a mature and stable ecosystem. The study also identified areas for improvement in energy utilization, resource recycling, and stability.
Article
Oceanography
Modou Thiaw, Didier Gascuel, Oumar Sadio, Ismaila Ndour, Hamet Diaw Diadhiou, Justin Kantoussan, Saliou Faye, Modou Thiam, Beyah Meissa, Patrice Brehmer
Summary: Using trophodynamic models, this study assessed the impact of a decade-long fishing closure inside and outside marine protected areas in Senegal on the ecosystem trophic network. Results showed a significant increase in predator biomass and decrease in prey biomass in the Bamboung MPA after fishing closure. Both MPAs studied showed evidence of poaching effects. The Joal-Fadiouth MPA demonstrated a positive effect of high habitat diversity and fishery closure on low-mobility species, but the biomass of large species from high trophic levels remained low inside the MPA.
OCEAN & COASTAL MANAGEMENT
(2021)
Article
Geosciences, Multidisciplinary
L. Vanalderweireldt, C. Albouy, F. Le Loc'h, R. Millot, C. Blestel, M. Patrissi, M. Marengo, J. Garcia, C. Bousquet, C. Barrier, M. Lefur, P. -a. Bisgambiglia, A. Donnay, S. Ternengo, A. Aiello, P. Lejeune, E. D. H. Durieux
Summary: The Eastern Corsican Coast is a unique marine ecosystem in the Mediterranean Sea, characterized by extensive seagrass meadows and limited fishing pressure. This study reveals the high degree of benthic-pelagic coupling in this ecosystem and the significant impact of fishing on upper trophic levels. Furthermore, the study highlights the critical habitat the ECC provides for Chondrichthyes.
JOURNAL OF MARINE SYSTEMS
(2022)
Article
Environmental Sciences
Shipeng Dong, Fang Wang, Dongxu Zhang, Liye Yu, Weijia Pu, Xian Xu, Yicheng Xie
Summary: This study analyzed the energy flows, ecosystem properties, and carrying capacities of two integrated pond aquaculture ecosystems. The results showed potential for further improvement in yields based on the primary productivities and efficiency values of the ecosystems.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Fisheries
Sarah J. Bourlat, Ellika Faust, Hakan Wennhage, Andreas Wikstrom, Kristie Rigby, Maria Vigo, Paul Kraly, Erik Selander, Carl Andre
Summary: The study found that fishing of goldsinny, corkwing, and ballan wrasse on the Swedish west coast has not led to stock depletion. Gut analysis confirmed them as non-specialized, omnivorous opportunists with a broader spectrum of prey than previously known.
ICES JOURNAL OF MARINE SCIENCE
(2021)
Article
Environmental Sciences
Regina Therese M. Bacalso, Giovanni Romagnoni, Matthias Wolff
Summary: Fisheries surveys in the Visayan Sea have shown changes in fish abundance and composition, with increasing dominance of invertebrates and low trophic levels fish. Traditional assessments only considered fishing as the cause of these changes, without accounting for trophic interactions and environmental conditions. However, an ecosystem model analysis revealed that fishing and trophic effects are the major drivers of stock abundance, while environmental trends provide additional explanations. These findings highlight the importance of ecosystem modeling in assessing marine ecosystems.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Sreekanth Giri Bhavan, Baban Ingole, Nabyendu Rakshit, Asha Giriyan, Fraddry D'souza, Shalita Dourado, Trivesh Mayekar, Purva Rivonkar, Renjith VishnuRadhan, Chakurkar Eakanath Bhanudasrao
Summary: This study assessed the ecological health of the Mandovi estuary in India using ecological indicators and found that it is an immature ecosystem with some resilience to unexpected disturbances. The study also highlights the importance of using an ecological approach in analyzing the health and sustainability of tropical transitional waters.
Article
Fisheries
Andrew O. Shelton, Mary E. Hunsicker, Eric J. Ward, Blake E. Feist, Rachael Blake, Colette L. Ward, Benjamin C. Williams, Janet T. Duffy-Anderson, Anne B. Hollowed, Alan C. Haynie
ICES JOURNAL OF MARINE SCIENCE
(2018)
Article
Fisheries
Andrew Olaf Shelton, William H. Satterthwaite, Eric J. Ward, Blake E. Feist, Brian Burke
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2019)
Article
Fisheries
Brian C. Stock, Eric J. Ward, Tomoharu Eguchi, Jason Jannot, James T. Thorson, Blake E. Feist, Brice X. Semmens
CANADIAN JOURNAL OF FISHERIES AND AQUATIC SCIENCES
(2020)
Article
Biodiversity Conservation
Thomas P. Good, Jameal F. Samhouri, Blake E. Feist, Chris Wilcox, Jaime Jahncke
BIOLOGICAL CONSERVATION
(2020)
Article
Fisheries
Andrew Olaf Shelton, Genoa H. Sullaway, Eric J. Ward, Blake E. Feist, Kayleigh A. Somers, Vanessa J. Tuttle, Jordan T. Watson, William H. Satterthwaite
Summary: Species that migrate long distances or between distinct habitats, such as anadromous or catadromous fish, are particularly at risk in a changing world due to the consequences of climate change in each habitat. Studies have shown that different stocks of these species have fundamentally different ocean distributions and respond differently to historical ocean temperature variations.
FISH AND FISHERIES
(2021)
Article
Multidisciplinary Sciences
A. K. Ettinger, E. R. Buhle, B. E. Feist, E. Howe, J. A. Spromberg, N. L. Scholz, P. S. Levin
Summary: Urbanization-driven landscape changes can harm many species, but efforts to mitigate negative effects are hindered by limited species response data. This study focuses on quantifying restoration efforts and prioritizing conservation actions for coho salmon, emphasizing the importance of identifying metrics aligned with intended outcomes.
SCIENTIFIC REPORTS
(2021)
Article
Fisheries
Blake E. Feist, Jameal F. Samhouri, Karin A. Forney, Lauren E. Saez
Summary: The study found that reports of whales entangled in fishing gear off the U.S. West Coast increased significantly in 2014. While there were no significant increases in fishing activity, a delayed fishery opening due to a harmful algal bloom led to a high rate of entanglement. The results support the hypothesis that habitat compression caused by a marine heatwave increased the overlap of whales with fishing activity.
FISHERIES MANAGEMENT AND ECOLOGY
(2021)
Article
Engineering, Environmental
Katherine T. Peter, Jessica Lundin, Christopher Wu, Blake E. Feist, Zhenyu Tian, James R. Cameron, Nathaniel L. Scholz, Edward P. Kolodziej
Summary: Chemical contamination in urban runoff-impacted watersheds is a significant conservation concern, with complex mixtures of organic contaminants that are often unidentified and poorly understood. This study aimed to develop representative water quality metrics corresponding to documented biological degradation along human impact gradients, finding that landscape-scale changes in chemical composition closely align with indicators of biological decline such as salmon mortality risk and loss of macroinvertebrate diversity. Identification of indicators for urban runoff impacts and ecological health can aid in selecting next-generation water quality indicators for watershed management efforts.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Biology
Jameal F. Samhouri, Blake E. Feist, Mary C. Fisher, Owen Liu, Samuel M. Woodman, Briana Abrahms, Karin A. Forney, Elliott L. Hazen, Dan Lawson, Jessica Redfern, Lauren E. Saez
Summary: This study examines how the 2014-2016 Northeast Pacific marine heatwave impacted the management of large whale entanglements in the most lucrative fishery on the U.S. west coast, demonstrating how extreme climate events can weaken management strategies and shift outcomes from near win-win to clear win-lose. While some actions were more cost-effective, there was no perfect strategy to mitigate the severity of these trade-offs.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Environmental Sciences
Jason E. Jannot, Eric J. Ward, Kayleigh A. Somers, Blake E. Feist, Thomas P. Good, Dan Lawson, James V. Carretta
Summary: This study uses Bayesian time-series models to estimate the bycatch of humpback whales in the U.S. West Coast sablefish pot fishery, provides estimates for observed entanglements, and demonstrates the applicability of the Bayesian framework for a variety of data and problems. The U.S. National Marine Fisheries Service has started using these models to improve humpback whale bycatch estimates since 2019.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Biology
Andrew Olaf Shelton, Ana Ramon-Laca, Abigail Wells, Julia Clemons, Dezhang Chu, Blake E. Feist, Ryan P. Kelly, Sandra L. Parker-Stetter, Rebecca Thomas, Krista M. Nichols, Linda Park
Summary: In this study, eDNA sampling was used to estimate the abundance and distribution of Pacific hake along the west coast of the USA, and the results were compared with traditional acoustic-trawl survey. The study shows that eDNA methods can provide valuable information at a management relevant scale, especially in data or resource-limited contexts.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2022)
Article
Ecology
Tessa B. Francis, Genoa H. Sullaway, Blake E. Feist, Andrew O. Shelton, Emily Chui, Caroline Daley, Kinsey E. Frick, Nick Tolimieri, Gregory D. Williams, Jameal F. Samhouri
Summary: This study evaluated the association between shoreline restoration and subtidal fish abundance. The results showed limited effects of shoreline restoration on fish abundance, with variations depending on survey site and fish species. Seasonal variations were also found for salmonid and surf smelt abundance. The study suggests that coastal restoration programs should consider broader landscape patterns and species-specific habitat needs when prioritizing investments.
RESTORATION ECOLOGY
(2022)
Article
Biodiversity Conservation
Braeden Van Deynze, Robert Fonner, Blake E. Feist, Sunny L. Jardine, Daniel S. Holland
Summary: This research demonstrates how econometric and machine learning methods can improve the accessibility of cost information for habitat restoration planning. By combining project records with construction cost data, the study identifies cost drivers and predicts future project costs. The findings suggest that certain variables are associated with culvert restoration costs and can serve as strong proxies in planning.
BIOLOGICAL CONSERVATION
(2022)
Article
Environmental Studies
Robert Fonner, German Izon, Blake E. Feist, Katie Barnas
Summary: This study investigated the capitalization of reduced flood risk from floodplain restoration into housing values in Orting, Washington, USA. The results showed that the reduced flood risk associated with floodplain restoration led to an increase in home prices within the designated floodplain, but had no effect on homes outside of the floodplain.
JOURNAL OF ENVIRONMENTAL ECONOMICS AND POLICY
(2023)
Article
Ecology
Adrian C. Stier, Andrew Olaf Shelton, Jameal F. Samhouri, Blake E. Feist, Phillip S. Levin