Article
Oceanography
Sulagna Ray, Nicholas Bond, Samantha Siedlecki, Albert J. Hermann
Summary: Temperature variations in the North and tropical Pacific have an impact on the deep-water temperature variations off the Northern California Current System. Surface temperature in the previous winter is related to the subsurface temperature in the following summer, and winter advection could explain a significant portion of the summer subsurface temperature variability.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2022)
Article
Zoology
Charlotte E. Davies
Summary: Marine protected areas have shown overwhelmingly positive effects on fish biomass, recovery, and diversity, but there is a lack of research on the impact of MPAs on parasite and disease dynamics, specifically invertebrate health. The implementation of MPAs can alter trophic cascades and community dynamics, highlighting the importance of investigating the status of invertebrates in these protected areas.
JOURNAL OF INVERTEBRATE PATHOLOGY
(2021)
Article
Environmental Sciences
Benjamin Mayersohn, Marina Levy, Ines Mangolte, K. Shafer Smith
Summary: Temporal variability in plankton community structure and biomass is often driven by environmental fluctuations, however, there is also distinct nonlinear variability that arises from ecological interactions alone. This study explores the competition between environmental and intrinsic processes in generating observed ecological variability.
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2022)
Article
Ecology
Adria Auladell, Albert Barberan, Ramiro Logares, Esther Garces, Josep M. Gasol, Isabel Ferrera
Summary: This study characterized the seasonal dynamics of marine bacteria and identified seasonal abundance patterns as well as environmental parameters affecting them. It found that niche similarity decreased for certain genera as nucleotide divergence in the 16S rRNA gene increased, and observed evidence of seasonal differentiation within various genera.
Article
Environmental Sciences
Lucian Himes, Florybeth Flores La Valle
Summary: This study used flight initiation distance (FID) to evaluate the health of fish populations within and outside of marine protected areas (MPAs) in Southern California. The results showed that fish sampled in MPAs had lower FID values, indicating bolder behavioral traits. This suggests that MPAs in Southern California are promoting healthier fish communities.
FRONTIERS IN MARINE SCIENCE
(2023)
Review
Oceanography
Franklin Garcia-Fernandez, Jaime Gomez-Gutierrez, Roxana De Silva-Davila, Cristian Hakspiel-Segura, Israel Ambriz-Arreola, Aida Martinez-Lopez, Arturo R. Sanchez-Uvera, Martin E. Hernandez-Rivas, Carlos J. Robinson
Summary: The study focused on investigating the abundance and community structure of euphausiids in the central Gulf of California, Mexico. The results showed that the prolonged warming from 2014 to 2016, particularly the marine heat wave of 2014 and the El Nino event of 2015-2016, significantly decreased the abundance of euphausiids, with a slight increase in the relative abundance of tropical species. It took at least 3 years for the euphausiid abundance to recover from the unfavorable conditions associated with the marine heat wave and El Nino event, reaching the highest mean abundance in 2019.
PROGRESS IN OCEANOGRAPHY
(2023)
Article
Multidisciplinary Sciences
Friedrich A. Burger, Jens Terhaar, Thomas L. Frolicher
Summary: This study shows that compound marine heatwave and ocean acidity extreme events have larger impacts on marine ecosystems than individual extremes. The likelihood of these compound events is higher in the subtropics and lower in the equatorial Pacific and mid-to-high latitudes. Climate change will increase the occurrence of compound events, leading to potentially severe impacts on marine ecosystems.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Alexandre Mignot, Karina von Schuckmann, Peter Landschuetzer, Florent Gasparin, Simon van Gennip, Coralie Perruche, Julien Lamouroux Tristan
Summary: Regional processes are crucial for the global carbon budget, and persistent marine heatwaves have an impact on CO2-sensitive areas. Through an analysis of data from 1985 to 2017, this study shows that persistent marine heatwaves occur in areas of CO2 uptake and release, leading to significant changes in air-sea CO2 flux density.
NATURE COMMUNICATIONS
(2022)
Article
Environmental Sciences
Manal Hamdeno, Aida Alvera-Azcarate
Summary: This study investigated the characteristics of marine heatwaves (MHWs) in the Mediterranean Sea from 1982 to 2020 and examined their relationship with teleconnection patterns. The results showed that MHWs were more frequent and intense in the western Mediterranean Sea (WMB) than in the eastern Mediterranean Sea (EMB), while the duration of MHWs was longer in the EMB. There was an increasing trend in MHW frequency and duration in the Mediterranean Sea, and the East Atlantic Pattern (EAP) played an important role in modulating MHW frequency.
FRONTIERS IN MARINE SCIENCE
(2023)
Editorial Material
Geosciences, Multidisciplinary
Kaustubh Thirumalai, Christopher R. Maupin
Summary: Several modes of tropical sea-surface temperature variability shape seasonal precipitation patterns across adjacent landmasses. Paleoceanographic estimates of past climate states clarify the sensitivity of interannual variability to climate forcing. Recent research demonstrates the utility of Sr/Ca variations in capturing SST variability using a difficult-to-sample meandroid coral species.
PALEOCEANOGRAPHY AND PALEOCLIMATOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Taylor Naaykens, Cassidy C. D'Aloia
Summary: Larval exchange among marine populations is important for population dynamics and conservation actions. Accurately measuring dispersal remains challenging, but this study shows that indirect methods based on isolation-by-distance (IBD) can produce accurate dispersal estimates in the coral reef fish Elacatinus lori. These estimates were compared to direct measurements from genetic parentage analysis, and the results suggest that the IBD method may be broadly applicable to studying marine larval dispersal.
Article
Multidisciplinary Sciences
Michael Dalsin, Ryan K. Walter, Piero L. F. Mazzini
Summary: Marine heatwaves and cold spells (MHWs/MCSs) are increasing globally, but there is limited in-situ based observational studies in the Eastern Boundary Current Upwelling Systems (EBUS). Analyzing a dataset from central California spanning over four decades, researchers found no significant change in MHW/MCS frequency, duration, or intensity. However, there was considerable interannual variability linked with basin-scale climate modes. The co-occurrence of warm (cold) phases of climate modes with anomalous upwelling strongly influenced the frequency of temperature anomalies and extreme events.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
Michael Dalsin, Ryan K. Walter, Piero L. F. Mazzini
Summary: Based on a unique dataset collected in central California spanning over four decades, this study found no significant increase or decrease in the frequency, duration, or intensity of marine heatwaves and cold spells. However, considerable interannual variability was observed, linked with basin-scale climate modes. The study emphasizes the importance of both basin-scale variability and upwelling forcing in predicting extreme events and shaping nearshore resilience in Eastern Boundary Current Upwelling Systems.
SCIENTIFIC REPORTS
(2023)
Article
Multidisciplinary Sciences
Joseph J. Bizzarro, Lynn Dewitt, Brian K. Wells, K. Alexandra Curtis, Jarrod A. Santora, John C. Field
Summary: This is an introduction to the California Current Trophic Database (CCTD), which was developed in collaboration with NOAA Southwest Fisheries Science Center and numerous diet data contributors. The CCTD is a compilation of diet composition data from 105,694 individual predators among 143 taxa collected from 1967-2019 in the California Current Large Marine Ecosystem (CCLME). It represents the largest compilation of raw trophic data in the region and provides valuable information for further analyses and modeling studies.
Article
Geosciences, Multidisciplinary
Xinyue Wei, Kai-Yuan Li, Thomas Kilpatrick, Minyang Wang, Shang-Ping Xie
Summary: The 2018 marine heatwave in Southern California was a result of slow warming caused by coastally trapped waves and fast warming associated with an offshore tropical cyclone. The reduced upwelling and deepened thermocline were identified as the major causes of the record-setting event.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Ecology
Kathleen G. O'Malley, Felix Vaux, Andrew N. Black
ECOLOGY AND EVOLUTION
(2019)
Article
Biodiversity Conservation
Melissa L. Evans, Jeffrey J. Hard, Andrew N. Black, Nicholas M. Sard, Kathleen G. O'Malley
CONSERVATION GENETICS
(2019)
Article
Fisheries
Rikke P. A. Madsen, Magnus W. Jacobsen, Kathleen G. O'Malley, Rasmus Nygaard, Kim Praebel, Bjarni Jonsson, Jose M. Pujolar, Dylan J. Fraser, Louis Bernatchez, Michael M. Hansen
ECOLOGY OF FRESHWATER FISH
(2020)
Article
Ecology
Felix Vaux, Leif K. Rasmuson, Lisa A. Kautzi, Polly S. Rankin, Matthew T. O. Blume, Kelly A. Lawrence, Sandra Bohn, Kathleen G. O'Malley
ECOLOGY AND EVOLUTION
(2019)
Article
Biodiversity Conservation
Felix Vaux, Hannah M. Aycock, Sandra Bohn, Leif K. Rasmuson, Kathleen G. O'Malley
CONSERVATION GENETICS RESOURCES
(2020)
Article
Ecology
Elizabeth M. J. Lee, Kathleen G. O'Malley
MARINE ECOLOGY PROGRESS SERIES
(2020)
Article
Evolutionary Biology
Felix Vaux, Sandra Bohn, John R. Hyde, Kathleen G. O'Malley
Summary: The study found that Albacore from the North and South Pacific can be distinguished using genetic data, but there is no genetic evidence for population substructure within the North Pacific or distinguishing males from females. The potential for adaptive differences among groups and cross-hemisphere migrants were also identified. Further research is needed to locate spawning areas and explore the functions of putatively adaptive loci.
EVOLUTIONARY APPLICATIONS
(2021)
Article
Fisheries
Alexander J. Jensen, Carl B. Schreck, Jon E. Hess, Sandra Bohn, Kathleen G. O'Malley, James T. Peterson
Summary: Genetic methods play a crucial role in the management of recreational mixed-stock fisheries, improving the accuracy and precision of harvest assessment. By utilizing genetic stock identification and parentage-based tagging, specific estimates of harvest can be determined, enhancing the management of recreational fisheries.
NORTH AMERICAN JOURNAL OF FISHERIES MANAGEMENT
(2021)
Article
Biodiversity Conservation
G. Curtis Roegner, Gary E. Johnson, Andre M. Coleman
Summary: The study revealed varying levels of accessibility to different salmon species in intertidal wetlands, with Chum Salmon having more stable opportunities compared to Chinook Salmon and Coho Salmon. Inundation in wetlands fluctuated nonlinearly with tidal height, and fish were able to access the productive marsh edge for approximately 40-50% of the time during out-migration periods. The fish habitat opportunity index provided a realistic metric for assessing fish habitat opportunity and could aid resource managers in predicting the relative effects of restoration efforts on habitat opportunity for juvenile anadromous fishes.
ECOLOGICAL INDICATORS
(2021)
Article
Ecology
G. Curtis Roegner, Stephanie A. Fields, Sarah K. Henkel
Summary: The study found that the thin-layer sediment deployment method has the potential to minimize direct impacts on epifauna during beach nourishment. Crabs were significantly impacted, while gastropods were more resistant and the impact was relatively brief. The results indicate an acute and ephemeral impact on crabs.
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Weihao Song, Yuheng Xie, Minmin Sun, Xuemei Li, Cristin K. Fitzpatrick, Felix Vaux, Kathleen G. O'Malley, Quanqi Zhang, Jie Qi, Yan He
Summary: Teleost fish exhibit a male-specific duplication of the anti-Mullerian hormone gene amh, which plays a crucial role in sex determination. Functional analysis shows that amhy triggers female-to-male sex reversal in Sebastes schlegelii, highlighting its fundamental role in testis differentiation. The study also demonstrates the convergent evolution of amh duplication as a driving force of sex determination in different fish taxa.
Article
Ecology
Leif K. Rasmuson, Tyler Jackson, Christopher A. Edwards, Kathleen G. O'Malley, Alan Shanks
Summary: Marine populations, such as the Dungeness crab, exhibit large annual fluctuations in larval returns, which strongly impact population dynamics. This study assessed how hydrographic conditions affect Dungeness crab population dynamics by monitoring a light trap in Coos Bay and using a biophysical model to simulate larval dispersal. The results support the hypothesis that more crab larvae recruit during the negative phase of the PDO and reveal the influence of water temperature on larval development rates.
MARINE ECOLOGY PROGRESS SERIES
(2022)
Review
Evolutionary Biology
Robin S. Waples, Michael J. Ford, Krista Nichols, Marty Kardos, Jim Myers, Tasha Q. Thompson, Eric C. Anderson, Ilana J. Koch, Garrett McKinney, Michael R. Miller, Kerry Naish, Shawn R. Narum, Kathleen G. O'Malley, Devon E. Pearse, George R. Pess, Thomas P. Quinn, Todd R. Seamons, Adrian Spidle, Kenneth Warheit, Stuart C. Willis
Summary: The strong associations between adult migration timing and specific alleles in the genomic region of Chinook salmon and steelhead have raised questions about incorporating genomics data into conservation unit configuration decisions. The study suggests that specific alleles are required for early migration and that considering early-migrating populations as reliable sources for genetic resources is important. The existence of large-effect loci can affect evolutionary potential and adaptability.
JOURNAL OF HEREDITY
(2022)
Article
Environmental Sciences
Samuel F. Harding, Andre M. Coleman, G. Curtis Roegner
RIVER RESEARCH AND APPLICATIONS
(2020)
Article
Environmental Sciences
Elizabeth M. J. Lee, Kathleen G. O'Malley
FRONTIERS IN MARINE SCIENCE
(2020)