Article
Environmental Sciences
Romina V. Barbosa, David Point, Anais Medieu, Valerie Allain, David P. Gillikin, Lydie I. E. Couturier, Jean-Marie Munaron, Francois Roupsard, Anne Lorrain
Summary: Understanding the relationship between mercury in seafood and oceanic methylmercury distribution is crucial for human mercury exposure assessment. Mercury concentrations in bigeye and yellowfin tunas from the Western and Central Pacific showed similar latitudinal patterns in blood and muscle, suggesting both tissues are suitable for mercury monitoring. The correlation between tuna mercury content and ambient seawater methylmercury concentrations highlights the importance of considering dissolved methylmercury uptake in addition to food assimilation in modeling mercury levels in tuna.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
Romina V. Barbosa, David Point, Anais Medieu, Valerie Allain, David P. Gillikin, Lydie I. E. Couturier, Jean-Marie Munaron, Francois Roupsard, Anne Lorrain
Summary: Understanding the relationship between mercury in seafood and the distribution of oceanic methylmercury is important for understanding human mercury exposure. This study found similar latitudinal patterns of mercury concentrations in the muscle and blood of bigeye and yellowfin tunas, indicating that both tissues are suitable for monitoring mercury levels. The analysis of different tuna species showed species- and tissue-specific mercury patterns, suggesting variations in mercury uptake and accumulation processes associated with their vertical habitat.
MARINE POLLUTION BULLETIN
(2022)
Article
Fisheries
Xiaofei Shi, Jian Zhang, Xiao Wang, Yixi Wang, Cheng Li, Jiangao Shi
Summary: This study investigated 756 yellowfin tuna caught in the tropical western and central Pacific Ocean, showing that reproductive traits were influenced by various factors, with the main spawning period from September to December and the 50% first maturity FLs of males and females being 111.96 cm and 119.64 cm, respectively.
Article
Environmental Sciences
Tung-Yao Hsu, Yi Chang, Ming-An Lee, Ren-Fen Wu, Shih-Chun Hsiao
Summary: This study identified potential fishing grounds of skipjack tuna in the Western and Central Pacific Ocean using the habitat suitability index. The majority of global and Taiwanese data were found within suitable habitat ranges, with the model performing well in fitting daily forecast and actual fishing position data. Results from this study could contribute to habitat monitoring and sustainable fisheries management for skipjack tuna.
Article
Engineering, Aerospace
Luis Soto-Mardones, Jushiro Cepeda-Morales, Javier Gonzalez-Ramirez, Alejandro Pares-Sierra, Arturo Corrales-Suastegui
Summary: The study analyzed the contribution of the seasonal cycle to the variability of the study area using satellite remote sensing data and reanalysis of sea surface temperature, wind stress, Ekman velocity, and geostrophic velocity from 2003 to 2019. The results showed the presence of a core of warm surface water in front of Matanche'n Bay and the adjacent continental shelf. The weakening of wind stress and Ekman velocity in summer is attributed to the irregular coastline shape, the extension of the continental shelf, and the divergence of the North American monsoon around 21 degrees N.
ADVANCES IN SPACE RESEARCH
(2023)
Article
Environmental Sciences
Jaime Farber Lorda, Bertrand Farber Data
Summary: The vertical distribution of zooplankton in the Eastern Tropical North Pacific is limited by oxygen, particularly in the Oxygen Minimum Zone. Zooplankton carbon density remains relatively constant above 100 meters depth, and is available during both day and night.
MARINE ENVIRONMENTAL RESEARCH
(2023)
Article
Fisheries
Kate M. Barclay, Arlene N. Satapornvanit, Victoria M. Syddall, Meryl J. Williams
Summary: The USD6 billion Western and Central Pacific Ocean (WCPO) tuna fisheries are essential for coastal countries, with over half the world's tuna production coming from these regions. Despite the focus on male-dominated industrial fishing, women play significant roles in processing and trading tuna. Gender divisions, livelihood opportunities and social impacts vary greatly across the value chain nodes, highlighting the need for a broader perspective on gender equity in the tuna industry.
FISH AND FISHERIES
(2022)
Article
Environmental Sciences
Mukti Zainuddin, Safruddin Safruddin, Aisjah Farhum, Budimawan Budimawan, Rachmat Hidayat, Muhammad Banda Selamat, Eko Sri Wiyono, Muhammad Ridwan, Mega Syamsuddin, Yudi Nurul Ihsan
Summary: Understanding the critical habitat of commercial species is a challenge in marine science, especially for species in the vast ocean. Previous studies focused on skipjack habitats without considering sustainable fisheries. In this study, a new habitat model for skipjack tuna in Indonesia was developed based on environmental data and catch data, revealing that feasible catch sizes were found in 27% of fishing grounds with specific Chl-a and SST conditions. The model provided reliable information on potential habitats and movement patterns of skipjack tuna.
Article
Oceanography
Ryoung Ah Kim, Kyung Eun Lee, Tae Wook Ko
Summary: This study investigated the seasonal and vertical distributions of planktonic foraminiferal species in the western tropical Pacific Ocean. The results showed an increase in the diversity and abundance of planktonic foraminifera in summer. The habitat depth of planktonic foraminifera varied with species, with different species inhabiting the surface mixed layer, uppermost thermocline, upper thermocline, and lower thermocline.
DEEP-SEA RESEARCH PART I-OCEANOGRAPHIC RESEARCH PAPERS
(2023)
Review
Oceanography
Taketoshi Kodama, Atsushi Tawa, Taiki Ishihara, Yosuke Tanaka
Summary: Bullet tuna and Pacific bluefin tuna larvae coexist in the Sea of Japan, but the former has unique ecological characteristics that allow for their coexistence despite competition with the latter.
PROGRESS IN OCEANOGRAPHY
(2022)
Article
Multidisciplinary Sciences
Yan-Lun Wu, Kuo-Wei Lan, Karen Evans, Yi-Jay Chang, Jui-Wen Chan
Summary: Spatial variations in tuna population and habitat preference are influenced by large-scale climate fluctuations, such as the Pacific decadal oscillation (PDO) and Atlantic multidecadal oscillation (AMO). The catch per unit effort (CPUE) of Indo-Pacific Ocean yellowfin tuna (YFT) is higher during negative AMO and positive PDO phases. The YFT habitat preference in the tropical Pacific Ocean shows seesaw patterns due to different environmental factors influenced by the PDO phase.
SCIENTIFIC REPORTS
(2022)
Article
Multidisciplinary Sciences
Cong Gao, Lei Zhou, Chunzai Wang, I. -I. Lin, Raghu Murtugudde
Summary: Research shows that changes in subsurface heat content in the tropical central-north Pacific counteract the favorable sea surface temperatures for tropical cyclone genesis. This is critical for understanding the dynamics of tropical cyclone formation.
NATURE COMMUNICATIONS
(2022)
Article
Multidisciplinary Sciences
Dan Fu, Ping Chang, Christina M. Patricola, R. Saravanan, Xue Liu, Hylke E. Beck
Summary: The Central American mountains play a role in reducing tropical cyclone activity in the eastern North Pacific by interrupting moisture transport from the Caribbean Sea on a seasonal timescale, reducing TC activity by up to 35%.
NATURE COMMUNICATIONS
(2021)
Article
Oceanography
Kamal Azmi, Quentin Hanich
Summary: Fisheries for highly migratory fish stocks are complex and require effective international cooperation to manage sustainably. However, diverse interests among participating states and fishing entities make cooperation difficult, with severe consequences for resources, economies, and livelihoods. Understanding the interests of each participant in different species and gear types is crucial for achieving effective cooperation.
OCEAN & COASTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Anais Medieu, David Point, Aurore Receveur, Olivier Gauthier, Valerie Allain, Heidi Pethybridge, Christophe E. Menkes, David P. Gillikin, Andrew T. Revill, Christopher J. Somes, Jeremy Collin, Anne Lorrain
Summary: Through studying the mercury concentrations in three tropical tuna species in the southwestern Pacific Ocean, it was found that there were significant inter-annual variability in mercury concentrations in tuna, but no clear long-term trend was observed. The influence of amino acids and model-estimated phytoplankton δN-15 values on mercury concentrations in tuna was highlighted.
Article
Oceanography
Adam T. Greer, Alan M. Shiller, Eileen E. Hofmann, Jerry D. Wiggert, Sally J. Warner, Sabrina M. Parra, Chudong Pan, Jeffrey W. Book, DongJoo Joung, Steven Dykstra, Jeffrey W. Krause, Brian Dzwonkowski, Inia M. Soto, M. Kemal Cambazoglu, Alison L. Deary, Christian Briseno-Avena, Adam D. Boyette, Jessica A. Kastler, Virginie Sanial, Laura Hode, Uchenna Nwankwo, Luciano M. Chiaverano, Stephan J. O'Brien, Patrick J. Fitzpatrick, Yee H. Lau, Michael S. Dinniman, Kevin M. Martin, Peng Ho, Allison K. Mojzis, Stephan D. Howden, Frank J. Hernandez, Ian Church, Travis N. Miles, Su Sponaugle, James N. Moum, Robert A. Arnone, Robert K. Cowen, Gregg A. Jacobs, Oscar Schofield, William M. Graham
Article
Fisheries
Alison L. Deary, Steven M. Porter, Annette B. Dougherty, Janet T. Duffy-Anderson
ICHTHYOLOGICAL RESEARCH
(2019)
Article
Limnology
Sabrina M. Parra, Adam T. Greer, Jeffrey W. Book, Alison L. Deary, Inia M. Soto, Carla Culpepper, Frank J. Hernandez, Travis N. Miles
LIMNOLOGY AND OCEANOGRAPHY
(2019)
Article
Geosciences, Multidisciplinary
Janet T. Duffy-Anderson, Phyllis Stabeno, Alexander G. Andrews, Kristin Cieciel, Alison Deary, Edward Farley, Corey Fugate, Colleen Harpold, Ronald Heintz, David Kimmel, Kathy Kuletz, Jesse Lamb, Melanie Paquin, Steven Porter, Lauren Rogers, Adam Spear, Ellen Yasumiishi
GEOPHYSICAL RESEARCH LETTERS
(2019)
Article
Biochemistry & Molecular Biology
Cathleen Schlundt, Jessica L. Mark Welch, Anna M. Knochel, Erik R. Zettler, Linda A. Amaral-Zettler
MOLECULAR ECOLOGY RESOURCES
(2020)
Review
Microbiology
Linda A. Amaral-Zettler, Erik R. Zettler, Tracy J. Mincer
NATURE REVIEWS MICROBIOLOGY
(2020)
Article
Biodiversity Conservation
A. L. Deary, C. D. Vestfals, F. J. Mueter, E. A. Logerwell, E. D. Goldstein, P. J. Stabeno, S. L. Danielson, R. R. Hopcroft, J. T. Duffy-Anderson
Summary: Polar cod and saffron cod are key components of the fish community in the Chukchi Sea, with their distribution and growth varying between seasons. Kotzebue Sound is highlighted as a significant area for the early life history stages of these fish species.
Article
Environmental Sciences
Linda A. Amaral-Zettler, Tosca Ballerini, Erik R. Zettler, Alejandro Abdala Asbun, Alvaro Adame, Raffaella Casotti, Bruno Dumontet, Vincenzo Donnarumma, Julia C. Engelmann, Laura Frere, Jeremy Mansui, Marion Philippon, Loris Pietrelli, Maria Sighicelli
Summary: This study investigated the differences in microbial communities on plastic debris in the Mediterranean, discovering regional variations and potential impacts within and between different marine areas. The study also found diverse fungi and harmful algal species on plastic pieces, indicating potential ecological implications in marine ecosystems.
ENVIRONMENTAL POLLUTION
(2021)
Article
Biodiversity Conservation
Shiye Zhao, Erik R. Zettler, Ryan P. Bos, Peigen Lin, Linda A. Amaral-Zettler, Tracy J. Mincer
Summary: This study surveys microplastics in the surface to near-sea floor waters of the remote South Atlantic Subtropical Gyre and discovers a high abundance of small microplastics (SMPs) with vertical and horizontal variations. The composition of SMPs differs from surface plastic debris, and SMPs have a more even vertical distribution and potentially longer residence times. This suggests that SMPs are a critical and underexplored constituent of the oceanic plastic inventory.
GLOBAL CHANGE BIOLOGY
(2022)
Article
Remote Sensing
Jingshan Lu, Jan U. H. Eitel, Mary Engels, Jie Zhu, Yong Ma, Feng Liao, Hengbiao Zheng, Xue Wang, Xia Yao, Tao Cheng, Yan Zhu, Weixing Cao, Yongchao Tian
Summary: This study compares the performance of different sets of spectral and textural indices derived from UAV data for estimating rice K nutritional status, and finds that fusion of spectral and textural indices allows for more accurate mapping of PKA.
INTERNATIONAL JOURNAL OF APPLIED EARTH OBSERVATION AND GEOINFORMATION
(2021)
Article
Multidisciplinary Sciences
Kate Longley-Wood, Mary Engels, Kevin D. Lafferty, John P. McLaughlin, Alex Wegmann
Summary: Native forests on tropical islands have been displaced by non-native species, leading to calls for their transformation. This study found that transforming coconut palm-dominated rainforests to native mixed-species forests at Palmyra Atoll could increase carbon storage, reduce dissolved organic carbon input into marine habitats, and benefit coral reef ecosystems.
Article
Oceanography
S. K. Shotwell, J. L. Pirtle, J. T. Watson, A. L. Deary, M. J. Doyle, S. J. Barbeaux, M. W. Dorn, G. A. Gibson, E. D. Goldstein, D. H. Hanselman, A. J. Hermann, P. J. F. Hulson, B. J. Laurel, J. H. Moss, O. A. Ormseth, D. Robinson, L. A. Rogers, C. N. Rooper, I. Spies, W. W. Strasburger, R. M. Suryan, J. J. Vollenweider
Summary: In the past two decades, extensive monitoring and assessment of the large marine ecosystems in Alaska have been conducted. Research projects have focused on understanding fish population fluctuations in relation to the surrounding environment. The Gulf of Alaska Integrated Ecosystem Research Project (IERP) is an example of such efforts, which has produced valuable observations, experiments, and models. However, the integration of these findings into single-species stock assessments has been limited. To address this, a new framework called Ecosystem and Socioeconomic Profile (ESP) is proposed to include the products of these IERPs and improve the stock assessment process. A case study using data synthesis of five commercially and ecologically valuable species in the Gulf of Alaska showed that informed indicators based on ecosystem information differed from non-informed indicators, highlighting the importance of considering ecosystem linkages in stock assessments. The coordinated nature of the IERP allows for the creation of informed indicators that would not be possible with individual studies alone. The integration of these indicators into the ESPs ensures that ecosystem linkages are evaluated alongside stock assessments and can inform management decisions.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2022)
Article
Marine & Freshwater Biology
Tom Theirlynck, Inara Regina W. Mendonca, Aschwin H. Engelen, Henk Bolhuis, Ligia Collado-Vides, Brigitta I. van Tussenbroek, Marta Garcia-Sanchez, Erik Zettler, Gerard Muyzer, Linda Amaral-Zettler
Summary: Holopelagic brown macroalgae Sargassum natans and Sargassum fluitans form essential habitats for attached and mobile fauna, but their large accumulations and strandings threaten the local biodiversity and cause economic losses. These stranded masses may introduce or facilitate the growth of bacteria that are not normally abundant in coastal regions. The study on the microbiome of holopelagic Sargassum provides insights into the potential health risks in coastal environments.
Article
Microbiology
Ryan P. Bos, Drishti Kaul, Erik R. Zettler, Jeffrey M. Hoffman, Christopher L. Dupont, Linda A. Amaral-Zettler, Tracy J. Mincer
Summary: Little is known about the dynamics and changes of early plastic biofilm assemblages over time. Gene catalogues were constructed to compare the metabolic differences between early and mature biofilm communities. Early colonization was dominated by Alteromonadaceae and had higher proportions of genes associated with adhesion, biofilm formation, chemotaxis, hydrocarbon degradation and motility. Mature biofilms were composed of predominantly Rhodobacteraceae and displayed higher proportions of carbohydrate hydrolysis enzymes and genes for photosynthesis and secondary metabolism.
ENVIRONMENTAL MICROBIOLOGY
(2023)
Article
Biodiversity Conservation
Kelia E. E. Axler, Esther D. D. Goldstein, Jens M. M. Nielsen, Alison L. L. Deary, Janet T. T. Duffy-Anderson
Summary: The Pacific Arctic marine ecosystem has experienced significant changes in recent years due to global warming, sea ice melting and increased transportation of Pacific-origin waters into the Arctic region. These changes have impacted the distribution and abundance of larval fish populations in the northern Bering Sea and Chukchi Sea. The study found that the warming and loss of sea ice have led to shifts in fish assemblages, with boreal species expanding northward and Arctic species retreating poleward.
GLOBAL CHANGE BIOLOGY
(2023)