Article
Fisheries
Graham C. Fletcher, Cristina D. Cruz, Duncan I. Hedderley
Summary: The frequency of gastroenteritis outbreaks caused by Vibrio parahaemolyticus has been increasing worldwide, including in New Zealand. Inadequate post-harvest refrigeration may allow the organism to grow to hazardous concentrations. Experimental and modeling studies show that the growth rates of V. parahaemolyticus are best described by log-linear and square root models, suggesting a slower growth rate in New Zealand oysters but the ability to grow at lower temperatures. The recommended minimum storage temperature of 7 degrees Celsius is adequate according to both models.
Article
Environmental Sciences
Xuekai Zhang, Chao Fan, Xingzhi Zhang, Qiongzhen Li, Yangchun Li, Zhaoping Wang
Summary: The study revealed that hybrid oyster larvae exhibit positive phototaxis to specific light intensity and wavelength, with 5 lx being the positive phototaxis light intensity for eyeless hybrid larvae, and the acceptable light intensity range for eyespot hybrid larvae expanding to 5-10 lx but negatively reacting to light over 25 lx. Green light had a positive effect on larvae gathering, while red light induced eyespot larvae settling. This research may contribute to the understanding of hybrid oyster larvae phototaxis and the impact of light pollution on benthic communities and coastal system restoration.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Fisheries
Yongguo Li, Chengxun Xu, Qi Li
Summary: This study compared the adaptation of tetraploid and diploid larvae to salinity and temperature, and found that tetraploid larvae have lower survival rates and growth rates than diploid larvae. The study also determined that a salinity range of 25-30 psu and a temperature range of 23-28℃ are the most suitable conditions for culturing tetraploid larvae.
Article
Fisheries
Biet Thanh Tran, Keun-Yong Kim, Jung Soo Heo, Su-Jin Park, Hong Keun Park, Youn Hee Choi
Summary: Fecal DNA metabarcoding is a valuable tool for studying diet composition in marine animals, but few studies have focused on bivalves. This pilot study investigated the diet composition of the Pacific oyster Magallana gigas in two aquaculture farms in South Korea. The results showed differences in diet diversity and stability between the two farms and variations over different seasons. Dinoflagellates, diatoms, and green algae were the predominant species, and harmful dinoflagellates were detected in both farms. The study highlights the potential of fecal DNA metabarcoding for providing information on M. gigas diet, aiding in aquaculture management.
Article
Fisheries
Tadashi Matsubara, Mineo Yamaguchi, Kazuo Abe, Goh Onitsuka, Katsuyuki Abo, Tomohiro Okamura, Takafumi Sato, Ken-ichiro Mizuno, Franck Lagarde, Masami Hamaguchi
Summary: This study investigated the water quality parameters, abundance of larval food, and success of larval settlement during the oyster spat collection period in Hiroshima Bay. Metabarcoding analysis revealed the species composition of phytoplankton that serve as essential food for oyster larvae. The findings provide insights into the favorable environmental conditions and key food sources for sustainable oyster farming in the bay.
Article
Fisheries
Shigeho Kakehi
Summary: A particle tracking model was developed to predict the larval transport of Pacific oyster Crassostrea gigas. The model used predicted tidal and residual currents and was validated using hydrographic observations. The model successfully predicted the larval distribution and estimated parameters such as drifting depth and mortality rate.
Article
Environmental Sciences
Arno Bringer, Jerome Cachot, Emmanuel Dubillot, Gregoire Prunier, Valerie Huet, Christelle Clerandeau, Louise Evin, Helene Thomas
Summary: This study focused on the impacts of aged aquaculture microplastics (MPs) on Pacific oysters. The results showed that MPs had no significant effect on the growth of adult oysters, but significantly increased the mortality rate of bivalves exposed to MPs. In addition, ingestion of MPs in oyster tissues and the presence in biodeposits were observed. Furthermore, the study found that MPs had effects on the swimming behavior, development, and growth of the offspring of exposed oysters.
ENVIRONMENTAL POLLUTION
(2022)
Article
Fisheries
Siriporn Tola, Orapint Jintasathaporn, Bundit Yuangsoi
Summary: The study suggests introducing a microcapsule diet for Mekong giant catfish larvae at 30 days post hatching to reduce dependency on live feeds. Results show that introducing an inert diet after 14 days post hatching is beneficial for the larvae. In a 28-day feeding experiment, transitioning to a microcapsule diet improved weight gain rate and specific growth rate without affecting survival rate.
Article
Agricultural Engineering
Shigeho Kakehi, Takayuki Sekiuchi, Hiroshi Ito, Soichiro Ueno, Yutaka Takeuchi, Kousuke Suzuki, Mai Togawa
Summary: Natural seedling collection is widely used in the culture of bivalve species, requiring collectors to be installed when larvae are about to attach. A deep-learning-based object-detection technique has been developed to accurately identify and count Pacific oyster larvae, reducing the time and effort needed for larval identification.
AQUACULTURAL ENGINEERING
(2021)
Article
Evolutionary Biology
Boyang Hu, Yuan Tian, Qi Li, Shikai Liu
Summary: This study investigated the genomic signatures of long-term selective breeding in Pacific oysters, revealing the impact of artificial selection on genetic diversity and genomic features. Population structure analysis and identification of selective sweeps highlighted the genetic differences between fast-growing oyster strains and wild populations. The findings provide valuable insights for understanding the genetic basis of growth regulation in Pacific oysters and will be beneficial for future genome-assisted breeding programs.
EVOLUTIONARY APPLICATIONS
(2022)
Article
Environmental Sciences
Kevin Tallec, Marta Gabriele, Ika Paul-Pont, Marianne Alunno-Bruscia, Arnaud Huvet
Summary: Tire leachates have a significant impact on the clearance and respiration rates of oysters, but do not affect absorption efficiency. The disruption of energy balance by tire leachates may affect the overall functions of oysters.
MARINE POLLUTION BULLETIN
(2022)
Article
Fisheries
Alfredo Loor, Peter Bossier, Nancy Nevejan
Summary: The study found that Delta mnn9 cells can be efficiently ingested and digested by Pacific oyster spat, serving as a suitable alternative to microalgal diets and potentially improving the growth performance of Pacific oysters.
Article
Fisheries
Dongshu Wu, Ben Yang, Qi Li, Shikai Liu
Summary: This study aimed to estimate the genetic parameters for female reproduction traits in Pacific oysters, including relative brood amount and egg diameter. The heritability of these traits ranged from 0.32 to 0.38, indicating the potential for improvement through selective breeding. The genetic and phenotypic correlations between female reproduction and growth traits were low, suggesting that these traits can be improved independently.
Article
Microbiology
Julien Vignier, Olivier Laroche, Anne Rolton, Pandora Wadsworth, Karthiga Kumanan, Branwen Trochel, Xavier Pochon, Nick King
Summary: The study revealed feeding compromised microalgae to developing oyster larvae caused significant negative effects, including increased deformities, reduced abilities, and slowed development. Analysis of bacterial communities showed certain genera like Halomonas and Marinomonas were strongly associated with impaired larval performance.
FRONTIERS IN MICROBIOLOGY
(2021)
Article
Fisheries
Joseph P. Dietrich, Mary Beth Rew Hicks, Jeffrey J. Hard, Krista M. Nichols, Christopher J. Langdon, Konstantin Divilov, Blaine Schoolfield, Mary R. Arkoosh
Summary: Marine bivalves account for 14% of global aquaculture production, with oysters representing about 33% of this production. Disease outbreaks caused by Vibrio coralliiyticus pose a major problem in oyster hatchery production. This study demonstrates that selective breeding can enhance the resistance of oyster larvae to Vibrio coralliiyticus, but multiple generations of breeding are expected for significant improvement.
Article
Fisheries
F. Da Costa, B. Petton, C. Mingant, G. Bougaran, C. Rouxel, C. Quere, G. H. Wikfors, P. Soudant, R. Robert
AQUACULTURE NUTRITION
(2016)
Article
Fisheries
Katia Asmani, Bruno Petton, Jacqueline Le Grand, Jerome Mounier, Rene Robert, Jean-Louis Nicolas
Article
Fisheries
Pauline Kamermans, Ainhoa Blanco, Sandra Joaquim, Domitilia Matias, Thorolf Magnesen, Jean Louis Nicolas, Bruno Petton, Rene Robert
AQUACULTURE INTERNATIONAL
(2016)
Article
Environmental Sciences
J. Vignier, P. Soudant, F. L. E. Chu, J. M. Morris, M. W. Carney, C. R. Lay, M. O. Krasnec, R. Robert, A. K. Volety
MARINE ENVIRONMENTAL RESEARCH
(2016)
Article
Environmental Sciences
J. Vignier, A. K. Volety, A. Rolton, N. Le Goic, F. -L. E. Chu, R. Robert, P. Soudant
ENVIRONMENTAL POLLUTION
(2017)
Article
Environmental Sciences
Julien Vignier, Anne Rolton, Philippe Soudant, Fu-lin E. Chu, Rene Robert, Aswani K. Volety
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2018)
Article
Biotechnology & Applied Microbiology
Julie Marchetti, Fiz da Costa, Gael Bougaran, Claudie Quere, Philippe Soudant, Rene Robert
JOURNAL OF APPLIED PHYCOLOGY
(2018)
Article
Marine & Freshwater Biology
Pierrick Barbier, Tarik Meziane, Martin Foret, Rejean Tremblay, Rene Robert, Frederic Olivier
JOURNAL OF SEA RESEARCH
(2017)
Article
Biotechnology & Applied Microbiology
Fiz da Costa, Fabienne Le Grand, Claudie Quere, Gael Bougaran, Jean Paul Cadoret, Rene Robert, Philippe Soudant
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
(2017)
Article
Fisheries
Ricardo Gonzalez-Araya, Rene Robert
AQUACULTURE RESEARCH
(2018)
Article
Fisheries
Aditya Kesarcodi-Watson, Philippe Miner, Jean-Louis Nicolas, Katia Asmani, Rene Robert
AQUACULTURE RESEARCH
(2016)
Article
Environmental Sciences
J. Vignier, A. Rolton, P. Soudant, F. L. E. Chu, R. Robert, A. K. Volety
ENVIRONMENTAL POLLUTION
(2019)
Article
Fisheries
Marine Holbach, Rene Robert, Philippe Miner, Christian Mingant, Pierre Boudry, Rejean Tremblay
AQUACULTURE RESEARCH
(2017)
Article
Fisheries
Katia Asmani, Bruno Petton, Jacqueline Le Grand, Jerome Mounier, Rene Robert, Jean-Louis Nicolas
AQUATIC LIVING RESOURCES
(2017)
Article
Fisheries
Rene Robert, Julien Vignier, Bruno Petton
AQUACULTURE RESEARCH
(2017)