Article
Biochemistry & Molecular Biology
Yan Ma, Na Gao, Zhichuang Zuo, Shanni Li, Wenqi Zheng, Xiang Shi, Qipei Liu, Ting Ma, Ronghua Yin, Xian Li, Jinhua Zhao
Summary: Fucan sulfates with diverse structures and biological activities were purified from the sea cucumber Pattalus mollis. Their anticoagulant properties were found to be influenced by molecular weight and sulfation degree. This study highlights the potential of these fucan sulfates as anticoagulant agents.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Fisheries
Yaoping Mei, Zhishuai Hou, Qinfeng Gao, Shuanglin Dong, Xueqi Li, Yuling Xu
Summary: This study investigated the effects of feeding ration on the growth, physiology, carbon allocation, energy budget, and CO2 fluxes of sea cucumber. The results showed that a feeding ration of 3% led to the highest specific growth rate, while a ration of 7% resulted in negative growth. Feeding ration significantly influenced carbon intake, nitrogen intake, and energy intake. The findings provide a theoretical basis for the development of efficient low-carbon aquaculture technology and sustainable industry.
AQUACULTURE REPORTS
(2023)
Article
Meteorology & Atmospheric Sciences
Osamu Miyawaki, Tiffany A. Shaw, Malte F. Jansen
Summary: Energy balance and lapse rate regimes characterize the different regions of Earth's modern climate. Currently, our understanding of these regimes and their spatiotemporal structure is incomplete. In this study, we use a moist static energy budget to quantify the occurrence of radiative convective equilibrium (RCE) and radiative advective equilibrium (RAE) in Earth's climate. We find that RCE is present year-round in the tropics and northern midlatitudes during summertime, while RAE exists throughout the year in Antarctica and the Arctic, except for early summer. Our results also show that the lapse rates in RCE and RAE are consistent with moist adiabatic and surface inversion lapse rates, respectively. We use idealized models to test different hypotheses and confirm that RCE occurs during midlatitude summer for land-like surface conditions and sea ice is necessary for the existence of annual-mean RAE in a polar ocean. Additionally, we show that energy balance regimes provide valuable information about the vertical structure of warming response in different regions and seasons.
JOURNAL OF CLIMATE
(2022)
Article
Environmental Sciences
Jan Sunde, Gyda Christophersen
Summary: The deposit feeding sea cucumber Parastichopus tremulus is an underutilised resource in North Atlantic waters. The performance of P. tremulus in aquaculture is largely unknown, and there are knowledge gaps that need to be filled for potential industry development. Particulate matter from fish farms could be used as an ingredient in feeds for sea cucumbers to reduce environmental impact.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Chemistry, Applied
Enrique Garcia-Candela, Carlos Pariona-Velarde, Aaron Mondragon-Martinez, Victor Chumpitaz-Cerrate
Summary: The study revealed that the aqueous extract of Patallus mollis sea cucumber has a remarkable antiviral effect against Rotavirus A in cell culture, with an inhibition rate of over 99.9%. The extract was found to inhibit 99% of the virus during the absorption and viral inactivation phase, indicating a strong potential for further investigation into its antiviral mechanisms.
NATURAL PRODUCT RESEARCH
(2021)
Article
Food Science & Technology
Zhengqi Liu, Yuanyuan Hu, Xiaoya Tao, Jinjin Li, Xiaoming Guo, Gang Liu, Shuang Song, Beiwei Zhu
Summary: In this study, the interaction between sea cucumber sulfated polysaccharide (SCSPsj) and Parabacteroides distasonis was investigated. SCSPsj was found to be fermented by P. distasonis, resulting in the production of various microbial metabolites. Additionally, the fermented supernatants of P. distasonis promoted the growth of specific intestinal Bacteroidales strains through cross-feeding.
FOOD RESEARCH INTERNATIONAL
(2023)
Article
Environmental Sciences
Kerri L. Dobson, Christine Ferrier-Pages, Casey M. Saup, Andrea G. Grottoli
Summary: The research showed that low light and feeding did not have a synergistic or additive effect in mitigating the negative impacts of elevated temperature on coral physiology and carbon budgets. Instead, the effects were species-specific and feeding alone was critical for meeting metabolic demand at elevated temperatures.
Article
Meteorology & Atmospheric Sciences
Dukpa Kim
Summary: Equilibrium climate sensitivity is often estimated using ordinary least squares, which may encounter issues with correlation when historical data is used. Alternative estimators in econometrics have been shown to provide a more reliable estimate in such cases.
THEORETICAL AND APPLIED CLIMATOLOGY
(2021)
Article
Engineering, Marine
Shuzong Han, Mingjie Wang, Bo Peng
Summary: The study found that successive typhoons have an impact on the temperature structure of the South China Sea, with the first typhoon decreasing sea surface temperature and raising the isotherm, and the second typhoon further affecting the temperature. Vertical diffusion and total advection are the main driving factors for temperature change, with a stronger impact on the right side of the typhoon track.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Environmental Sciences
Yaoping Mei, Yuan Tian, Qinfeng Gao, Shuanglin Dong, Xueqi Li, Yuling Xu
Summary: This study aimed to evaluate the effects of different stocking densities of sea cucumber on the CO2 fluxes at the water-air interface and explore the relationship between CO2 fluxes and respiratory metabolism. The results showed that sea cucumber with moderate stocking density had higher CO2 fluxes, indicating more active respiration metabolism. Transcriptome analysis revealed differentially expressed genes related to peroxisome, fatty acid degradation, and oxidative phosphorylation pathways, which may explain the differences in respiration metabolism rates at different stocking densities.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Lia Herrmannsdorfer, Malte Muller, Matthew D. Shupe, Philip Rostosky
Summary: By comparing the ERA5 global atmospheric reanalysis data with the winter MOSAiC data, deficiencies in the representation of the Arctic surface energy budget and surface temperature in the ERA5 model are identified. The model fails to distinguish between radiatively clear and opaquely cloudy winter states and exhibits biases in surface temperature due to inaccurate representation of sea ice thickness and snow depth.
ELEMENTA-SCIENCE OF THE ANTHROPOCENE
(2023)
Article
Environmental Sciences
Xiaoshang Ru, Libin Zhang, Hongsheng Yang
Summary: The study found that sea cucumbers effectively conserve energy during reproduction by reducing locomotor activity to cope with high energy demands. Stable cortisol levels indicate that decreased motility offsets the increased energy demand for reproduction while maintaining energy homeostasis in the maternal body.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Plant Sciences
Milena Danicic, Milan Vranes, Marina Putnik-Delic, Aleksandar Tot, Philipp Weihs, Ivana Maksimovic
Summary: The study showed that imidazolium-based ionic liquids have significant impacts on the growth and chemical composition of tomato and cucumber, including reducing yield and changing mineral concentrations in leaves. Specifically, [Dmim][Cl] had a greater effect on the plants compared to [Bmim][Cl].
PLANT PHYSIOLOGY AND BIOCHEMISTRY
(2021)
Article
Geosciences, Multidisciplinary
Felix Pithan, Thomas Jung
Summary: The study found that climate change in the Arctic is less sensitive to surface temperature change, and hydrological sensitivity is energetically driven. The increase in latent heat release from precipitation locally balances increased atmospheric radiative cooling in Arctic winter, affecting cloud and precipitation formation.
GEOPHYSICAL RESEARCH LETTERS
(2021)
Article
Environmental Sciences
Viviana Pasquini, Pierantonio Addis, Ambra Angelica Giglioli, Davide Moccia, Antonio Pusceddu
Summary: This study investigated the effects of Holothuria tubulosa on sedimentary organic matter quantity, biochemical composition, and nutritional quality. The results showed that Holothuria tubulosa can increase protein and lipid content through their defecation, making them a more labile food source for other benthic organisms.
FRONTIERS IN MARINE SCIENCE
(2023)
Review
Ecology
Trevyn A. Toone, Rebecca Hunter, Emilee D. Benjamin, Sean Handley, Andrew Jeffs, Jenny R. Hillman
Summary: The study found an increase in shellfish reef conservation research, but also revealed imbalances in the field, with a focus on the United States and Northern Europe, oyster research, and a high proportion of academia-affiliated authors. Additionally, research on social interventions and outcomes lags behind, despite the critical importance of social aspects in conservation work.
RESTORATION ECOLOGY
(2021)
Article
Biodiversity Conservation
Matthew K. Pine, Louise Wilson, Andrew G. Jeffs, Lauren McWhinnie, Francis Juanes, Alessia Sceuderi, Craig A. Radford
Summary: During the lockdown in New Zealand, a significant decrease in marine vessel activities led to an immediate increase in communication ranges for fish and dolphins, highlighting the impact of small vessel noise on underwater soundscapes. The data provided new insights into how animals adapt to the growing noise pollution and the cumulative noise effects from vessels on auditory masking.
GLOBAL CHANGE BIOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Alastair Harris, Melodie A. Lindsay, Austen R. D. Ganley, Andrew Jeffs, Silas G. Villas-Boas
Summary: The biological effect of sound on microorganisms depends on the frequency of sound and the type of microorganism, with studies on brewer's yeast showing that sound can enhance growth, alcohol production, and alter metabolites. Sound treatments significantly impact growth rate and volatile metabolites, with differences observed between high- and low-frequency sounds, indicating potential modulation of industrial processes through the application of specific frequencies of audible sound during growth.
Article
Biochemistry & Molecular Biology
Shaneel Sharma, Leonie Venter, Andrea C. Alfaro, Norman L. C. Ragg, Natali J. Delorme, Leonardo N. Zamora
Summary: The physiological responses of juvenile geoducks undergoing different emersion and recovery stages were investigated, revealing an increase in hemolymph osmolality with longer emersion times and significant differences between emersion groups after recovery. Viability measures of hemocytes showed no significant variation between groups, and metabolic analyses suggested that protein, lipid, and carbohydrate metabolites play a role in energy production in geoducks, with anaerobic pathways and succinate being prominent in longer exposure groups.
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY D-GENOMICS & PROTEOMICS
(2022)
Article
Biology
James Robertson, Andrew Jeffs, Christopher Hedges, Anthony J. R. Hickey
Summary: Isoeugenol, an anaesthetic used in the transportation of live lobsters, acts as a metabolic suppressant, reducing energy expenditure and improving survival rates. This study investigates the impact of isoeugenol on mitochondrial function, with a particular focus on respiration supported by complex I and cytochrome c oxidase. The results demonstrate that isoeugenol inhibits respiration through complex I and indicates it may act as a possible target for isoeugenol's effects.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2022)
Article
Fisheries
William J. G. McKay, Andrew G. Jeffs
Summary: This study examines the ability of larval giant kokopu to consume formulated larval diets at different ages and feeding events. The results suggest that as the larvae age, their consumption of formulated feed increases, indicating a potential to reduce the reliance on live feed. However, further research is needed to determine the impact on growth and survival.
JOURNAL OF THE WORLD AQUACULTURE SOCIETY
(2023)
Article
Green & Sustainable Science & Technology
Emilee D. Benjamin, Jenny R. Hillman, Sean J. Handley, Trevyn A. Toone, Andrew Jeffs
Summary: Providing substrate is effective for oyster and mussel restoration. This study tested the effectiveness of adding shell substrate for adult green-lipped mussel restoration and found that it provided little advantage in high-density deployments.
Article
Fisheries
Supono Supono, Maria Mugica, Stefan Spreitzenbarth, Andrew Jeffs
Summary: This study investigated the potential use of two concentrated microalgal diets as a replacement for live microalgae in bivalve nursery culture. The results showed that these diets can be used up to 50% substitution without compromising the survival and nutritional profile of juvenile green-lipped mussels.
AQUACULTURE RESEARCH
(2023)
Article
Ecology
Trevyn A. Toone, Emilee D. Benjamin, Jenny R. Hillman, Sean Handley, Andrew Jeffs
Summary: The onset of the Anthropocene has resulted in significant global declines in natural ecosystems and the valuable goods and services they provide, necessitating ecosystem restoration. However, restoring ecosystems effectively requires accurate identification of causes of decline and clear metrics of success, which can only be achieved with baseline data of pre-degradation and pre-restoration ecosystems. This study demonstrates the use of multidisciplinary baselines in the restoration of mussel reefs in New Zealand, showing how combining various sources and methods allows for comprehensive and reliable assessment of ecosystem changes and confirmation of causes of degradation. This approach provides valuable insights for restoration efforts in quantifying the scales of decline, identifying intervention areas, and establishing metrics of success.
Article
Fisheries
William McKay, Andrew Jeffs
Summary: Optimizing the live feed is crucial for successful fish larviculture, as it impacts both larval health and productivity. This study compared the growth and survival of giant kokopu larvae fed different proportions of first-molt and second-molt Artemia nauplii. The results showed that using enriched second-molt Artemia as the sole feed achieved the best total productivity.
Article
Fisheries
Nicholas P. L. Tuckey, Belinda A. Timms, Graham C. Fletcher, Graeme Summers, Natali J. Delorme, Jessica A. Ericson, Norman L. C. Ragg, Poppy Miller, Reginald Wibisono, Roland Taylor, Serean L. Adams, Leonardo N. Zamora
Summary: Two post-harvest storage trials were conducted to assess refrigerated seawater (RSW) based systems for green-lipped mussel storage. The results showed that RSW and periodic immersion in RSW were beneficial for mussel survival and quality compared to chilled storage. A range of physiological, morphometric, and quality measures were evaluated to assess mussel performance, and the risk of pathogen proliferation was also assessed. The highest mortality rate was observed in the chilled treatment, while the RSW treatment had the lowest mortality rate.
Article
Fisheries
Alaric Mccarthy, Andrew Jeffs, Shaun Ogilvie, Dave Taylor, John Radford, Ian Tuck
Summary: This study assessed the effectiveness of using video cameras mounted on commercial trawls for a deep-sea lobster, and confirmed that video sampling can provide information on habitat associations and fishing efficiency.
Article
Fisheries
L. N. Zamora, J. A. Jury, L. C. Kozal, M. A. Sewell, N. L. C. Ragg, T. S. Leach, J. M. Wong, A. J. Schmidt
Summary: This study aimed to identify reliable screening biomarkers in the early life stages of selectively-bred/hatchery reared green-lipped mussel through lipid quantification using confocal laser scanning microscopy and image analysis, as well as Iatroscan thin layer chromatography/flame ionization detection. The results showed that both methods were successful in detecting differences among larval groups with different genetic backgrounds and growing environments, providing important insights for early screening.
Article
Fisheries
William McKay, Andrew Jeffs
Summary: The selection of artificial feed is crucial for the success of larviculture of fin fish. This study compares three commercial artificial dry feeds and finds that Otohime yields the best growth performance for giant kokopu larvae. Understanding the nutritional needs of larval giant kokopu is important for improving their commercial aquaculture production.
Article
Fisheries
Jayagopal Pozhoth, Andrew Jeffs
Summary: The study suggests that the use of isobutanol can reduce ammonia levels and mortalities during the live transport of tropical lobsters. Treatment with 50 ppm isobutanol in ambient seawater temperature is more effective than cold stunning treatment.