Article
Environmental Sciences
Lyudmyla Stelmakh, Nelya Kovrigina
Summary: In the coastal waters near Sevastopol in the Black Sea, significant changes in the structure and function of phytoplankton have occurred due to rising temperatures and increased anthropogenic pressure, resulting in decreased phytoplankton biomass, increased large algae, and decreased nutrition quality for microzooplankton, leading to a significant decrease in the transfer of matter and energy from phytoplankton to higher trophic levels.
Article
Environmental Sciences
Yujian Wen, Guodong Zhang, Yuyao Song, Guicheng Zhang, Jun Sun
Summary: The dilution experiment technique was employed in two cruises conducted in July-August and October-November 2020, with 14 stations in total. The study comprehensively investigates the grazing impact of microzooplankton on phytoplankton in the interior of Bohai Bay. Spatially and seasonally, both the microzooplankton grazing rates (m) and phytoplankton growth rates (& mu;(0)) were significantly higher in summer compared to autumn, and the growth rate of phytoplankton was positively correlated with temperature. The ratio of microzooplankton grazing rate to phytoplankton growth rate (m/& mu;(0)) showed no significant spatial and seasonal differences, indicating a consistent daily consumption of primary production by microzooplankton in the two seasons. Therefore, the research highlights a close coupling between microzooplankton grazing and phytoplankton growth in the Bohai Bay.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Nicole Millette, Christopher Kelble, Ian Smith, Kelly Montenero, Elizabeth Harvey
Summary: Microzooplankton grazing rates on phytoplankton were investigated in the coastal area of southern Florida, USA. The study found that microzooplankton consumed a higher proportion of primary production near the Everglades outflow compared to the Florida Keys.
Article
Environmental Sciences
Chi Hung Tang, Edward J. Buskey
Summary: Microzooplankton play a crucial role in connecting primary production and higher trophic levels in marine ecosystems. However, crude oil pollution can disrupt their grazing behavior and the relationship with phytoplankton, potentially leading to phytoplankton blooms.
MARINE POLLUTION BULLETIN
(2022)
Article
Oceanography
Michael R. Landry, Raleigh R. Hood, Claire H. Davies, Karen E. Selph, David Antoine, Mika C. Carl, Lynnath E. Beckley
Summary: This study investigated the plankton biomass structure, production, and grazing rates in the eastern Indian Ocean. The results showed that production and grazing rates increased significantly from south to north, with Prochlorococcus dominating productivity and microzooplankton accounting for most of the grazing. These findings are important for understanding the importance and changes in the marine ecosystem of the eastern Indian Ocean.
DEEP-SEA RESEARCH PART II-TOPICAL STUDIES IN OCEANOGRAPHY
(2022)
Article
Ecology
Marco J. Cabrerizo, Emilio Maranon
Summary: The study found that the highest grazing rates align with the highest growth rates, corresponding to medium cell sizes. There were no significant differences in growth or grazing between the smallest and largest cell sizes considered. The grazing-to-growth ratio was largely independent of cell size and C:N ratios, with low thermal dependence.
Article
Multidisciplinary Sciences
Guilherme Duarte Ferreira, Filomena Romano, Nikola Medic, Paraskevi Pitta, Per Juel Hansen, Kevin J. Flynn, Aditee Mitra, Albert Calbet
Summary: Mixoplankton impact grazing rate estimation, chlorophyll and cell counts are not sufficient, whole community approaches mimic reality better.
SCIENTIFIC REPORTS
(2021)
Article
Engineering, Marine
Lyudmyla Stelmakh, Nelya Kovrigina, Tatiana Gorbunova
Summary: The study examined the seasonal dynamics of phytoplankton, its growth rate, and microzooplankton grazing in the western Black Sea coastal waters near Sevastopol from January 2021 to December 2022. The composition of phytoplankton species has remained relatively stable in recent years compared to the end of the last century and the early 2000s. However, there have been significant changes in the ratio between different diatom species, with an increased proportion of dinoflagellates, particularly in the autumn season.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Ecology
Mara Freilich, Alexandre Mignot, Glenn Flierl, Raffaele Ferrari
Summary: Recent observations have shown an increase in phytoplankton biomass in the North Atlantic during winter, attributed to a release from grazing pressure. Mathematical formulations of grazing as a function of phytoplankton concentration that are quadratic or decrease faster than linearly at low concentrations can reproduce the observed fall to spring transition in phytoplankton.
Article
Biodiversity Conservation
David Pecqueur, Justine Courboules, Cecile Roques, Sebastien Mas, Romain Pete, Francesca Vidussi, Behzad Mostajir
Summary: This study investigated the growth and grazing mortality rates of different groups of bacteria, cyanobacteria, and eukaryotic picophytoplankton and nanophytoplankton in the Thau Lagoon under different seasonal conditions. The results showed that bacteria were more active and had higher growth and grazing mortality rates compared to phytoplankton. The predators efficiently grazed and transferred these prey organisms, with warmer water facilitating the transfer of small prokaryotes but disadvantaging larger eukaryotic prey.
Article
Environmental Sciences
Caiyun Zhang
Summary: The study found that the summer upwelling intensity in the Taiwan Strait has been decreasing, showing strong correlations with factors such as offshore Ekman transport and ENSO Modoki events. The decrease in upwelling may not slow down the warming rate of sea surface temperature and could lead to a decline in chlorophyll a.
Article
Environmental Sciences
Zhi Huang, Jianyu Hu, Weian Shi
Summary: This study used satellite data to map and quantitatively analyze coastal upwelling along the Taiwan east coast during the summer monsoon season, showing evidence of seasonal upwelling influenced by southwest/south winds. The results indicate three broad upwelling centers in the north, central, and south, with the northern center having the longest upwelling season lasting from May to September, and larger extents between June and August during the peak of the summer monsoon.
Article
Environmental Sciences
Jyothibabu Retnamma, Karnan Chinnadurai, Jagadeesan Loganathan, Arunpandi Nagarathinam, Parthasarathi Singaram, Albin Konnakkamannil Jose
Summary: Research indicates that the nutrient enrichment of coastal upwelling along the southwest coast of India leads to changes in the morphological characteristics and body size of microautotrophs. During the Southwest Monsoon, these organisms form large colonies to better assimilate nitrate.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Oceanography
Shailja Gangrade, Peter J. S. Franks
Summary: Locally enhanced productivity and carbon export are observed at oceanic density fronts, and the physical-biological interplay along and across these fronts is often assumed or hypothesized. However, the short residence times of waters in fronts challenge this assumption. This study explores an eddy-associated front in the California Current System, finding distinct origins of phytoplankton patches along the front, related to strong upstream coastal upwelling pulses.
JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
(2023)
Review
Oceanography
D. Catlett, D. A. Siegel, R. D. Simons, N. Guillocheau, F. Henderikx-Freitas, C. S. Thomas
Summary: In the Santa Barbara Channel, nanophytoplankton groups respond most rapidly to seasonal upwelling, followed by diatoms and picophytoplankton as the water column stratifies in the summer. Regional surface ocean advection plays a substantial role in driving phytoplankton composition in the Santa Barbara Channel.
PROGRESS IN OCEANOGRAPHY
(2021)
Article
Oceanography
Zhida Huang, Wei Zhuang, Jianyu Hu, Bangqin Huang
JOURNAL OF OCEANOGRAPHY
(2019)
Article
Microbiology
Ping Sun, Liying Huang, Dapeng Xu, Alan Warren, Bangqin Huang, Ying Wang, Lei Wang, Wupeng Xiao, Jie Kong
FRONTIERS IN MICROBIOLOGY
(2019)
Article
Environmental Sciences
Ping Sun, Ying Wang, Edward Laws, Bangqin Huang
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Oceanography
Yanping Zhong, Xin Liu, Wupeng Xiao, Edward A. Laws, Jixin Chen, Lei Wang, Siguang Liu, Fan Zhang, Bangqin Huang
PROGRESS IN OCEANOGRAPHY
(2020)
Article
Environmental Sciences
Yu Mo, Linjian Ou, Lizhen Lin, Bangqin Huang
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Biotechnology & Applied Microbiology
Rediat Abate, Shuang Song, Vishal Patil, Changping Chen, Junrong Liang, Lin Sun, Xuesong Li, Bangqin Huang, Yahui Gao
JOURNAL OF APPLIED PHYCOLOGY
(2020)
Article
Limnology
Kailin Liu, Bingzhang Chen, Liping Zheng, Suhong Su, Bangqin Huang, Mianrun Chen, Hongbin Liu
Summary: Through 224 dilution experiments, the study found that the importance of microzooplankton biomass and herbivory rate in the marginal seas of China is still underestimated, and the quantitative relationships between environmental factors and microzooplankton biomass and herbivory rate remain unclear. The research also showed that microzooplankton grazing is influenced by temperature, phytoplankton biomass, and microzooplankton biomass, and that microzooplankton biomass scales proportionally with phytoplankton biomass with a shift in species as phytoplankton biomass increases.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Oceanography
Zhimian Cao, Danna Wang, Zhouling Zhang, Kuanbo Zhou, Xin Liu, Lei Wang, Bangqin Huang, Pinghe Cai, Minhan Dai
PROGRESS IN OCEANOGRAPHY
(2020)
Article
Environmental Sciences
Yibin Huang, David Nicholson, Bangqin Huang, Nicolas Cassar
Summary: Global oceanic gross primary production (GPP) has been studied using two satellite-based models, showing that GPP(17 Delta) is 1.5-2.2 times larger than oceanic net primary production (NPP) and comparable to land GPP. The discrepancy between GPP(17 Delta) and GPP(LD) simulations can be partially explained by methodological biases.
GLOBAL BIOGEOCHEMICAL CYCLES
(2021)
Article
Engineering, Environmental
Hualong Hong, Junwei Li, Qiang Wang, Haoliang Lu, Jingchun Liu, Yun-wei Dong, Jie Zhang, Jian Li, Mark A. Williams, Bangqin Huang, Chongling Yan
JOURNAL OF HAZARDOUS MATERIALS
(2020)
Article
Limnology
Lingqi Ma, Wupeng Xiao, Edward A. Laws, Xiaolin Bai, Kuo-Ping Chiang, Xin Liu, Jixin Chen, Bangqin Huang
Summary: The study showed that upwelling intensity was influenced by internal waves, leading to nutrient fluctuations in the upper water column. Phytoplankton total chlorophyll a responded positively to nutrient concentrations, but with a time lag. Nine specific phytoplankton groups displayed four different response types, suggesting a combination of rapid physical transport and time-lagged physiological effect via bottom-up control.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Microbiology
Jie Kong, Xin Liu, Lei Wang, Hao Huang, Danyun Ou, Jiayu Guo, Edward A. Laws, Bangqin Huang
Summary: This study enhanced the understanding of the community structure and distribution patterns of marine bacteria in a subtropical oligotrophic ocean system and identified potentially important determinants of their structure. Results highlighted the significance of considering both quantitative and relative abundances of marine bacterial communities.
FRONTIERS IN MICROBIOLOGY
(2021)
Review
Oceanography
Haoran Liu, Xin Liu, Wupeng Xiao, Edward A. Laws, Bangqin Huang
Summary: Phytoplankton size classes play a crucial role in aquatic food web functionality. Nanophytoplankton contribute significantly to phytoplankton biomass in the southern Yellow Sea, East China Sea, and South China Sea, with sea surface temperature being a key factor affecting PSCs variations. The use of a regional SST-dependent, abundance-based model was found to be more effective in estimating PSCs dynamics compared to SST-independent models.
PROGRESS IN OCEANOGRAPHY
(2021)
Article
Oceanography
Yuyuan Xie, Lizhen Lin, Wupeng Xiao, Xiaolong Yu, Wenlu Lan, Bangqin Huang
PROGRESS IN OCEANOGRAPHY
(2020)
Article
Oceanography
Bingzhang Chen, Hongbin Liu, Wupeng Xiao, Lei Wang, Bangqin Huang
PROGRESS IN OCEANOGRAPHY
(2020)
Article
Oceanography
Alyssa M. LeClaire, Eric N. Powell, Roger Mann, Kathleen M. Hemeon, Sara M. Pace, Vincent Saba, Hubert du Pontavice, Jillian R. Sower
Summary: Arctica islandica is an important species for recording climate change on the U.S. northeast continental shelf, and its growth rates show synchronous changes with cold and warm climatic periods. This study finds that A. islandica near the Delmarva Peninsula had higher growth rates during cold periods, possibly due to increased food supply in shallower water. The range recession of this species is a long-term process determined by the survivorship of older individuals.
CONTINENTAL SHELF RESEARCH
(2024)