Article
Environmental Sciences
Sara E. Boles, Isabelle P. Neylan, Laura Rogers-Bennett, Jackson A. Gross
Summary: This research explores the effectiveness of using non-invasive ultrasound technology to identify the reproductive status of abalone. The ultrasound imaging technology accurately differentiates between digestive and reproductive tissues, allowing for the characterization of an ultrasound gonad index score. Tracking ultrasound gonad scores over time is a useful tool for improving abalone culture production and increasing animal welfare. The non-invasive ultrasound technology has the potential to enhance both food and conservation aquaculture breeding programs in abalone aquaculture.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Biodiversity Conservation
Isabelle P. Neylan, Daniel S. Swezey, Sara E. Boles, Jackson A. Gross, Andrew Sih, John J. Stachowicz
Summary: Understanding the mechanisms of individual organisms and populations to adapt to global climate change is crucial. This study investigated the plasticity across generations and life stages in response to ocean acidification in shellfish. The results showed that the negative impacts of ocean acidification can last within and across generations, but buffering against acidification at critical life-history windows can mitigate these effects.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Fisheries
Angelica Lizeth Toiber-Estrella, Adrian Quintero-Martinez, Adela Rodriguez-Romero, Hector Riveros-Rosas, Alejandra Hernandez-Santoyo
Summary: Galectins are a family of lectins that have ancient evolutionary origins and can recognize and bind to beta-galactosides. In this study, a galectin called HrGal was identified and characterized from the mollusk Haliotis rufescens. HrGal has four tandem-repeat CRDs and showed specificity for galactosides. It belongs to a monophyletic group of tetradomain galectins unrelated to vertebrate galectins. The sulfated sugars heparin and iota-carrageenan were the only ones that inhibited its hemagglutinating activity.
FISH & SHELLFISH IMMUNOLOGY
(2022)
Article
Fisheries
Duong N. Duong, David A. J. Stone, Jian G. Qin, Thanh H. Hoang, Matthew S. Bansemer, James O. Harris
Summary: Macroalgae meal can provide dietary energy for abalone, with enriched G. cliftonii showing benefits in energy intake and somatic growth compared to enriched Ulva sp. Inclusion of selected macroalgae species in formulated diets for abalone has potential for improving feed utilization and growth.
Article
Evolutionary Biology
Joanna S. Griffiths, Ruta M. Sahasrabudhe, Mohan P. A. Marimuthu, Noravit Chumchim, Oanh H. Nguyen, Eric Beraut, Merly Escalona, Andrew Whitehead
Summary: Red abalone, an herbivorous marine gastropod, is declining due to overharvesting, disease, and climate change. To protect this important species, researchers have created a new reference genome, which will aid in studying population dynamics, genetic diversity, and management strategies.
JOURNAL OF HEREDITY
(2022)
Article
Virology
Tomomasa Matsuyama, Ikunari Kiryu, Mari Inada, Tomokazu Takano, Yuta Matsuura, Takashi Kamaishi
Summary: The study revealed that H. gigantea, H. discus discus, and H. discus hannai are susceptible to Abalone asfa-like virus (AbALV), while H. diversicolor is not. Through experimental infection and immunohistological observations, it confirmed that AbALV is the etiological agent of abalone amyotrophia.
Article
Fisheries
Alejandro Rojas-Figueroa, Carlos Angulo, Ruben Araya, Andres Granados-Amores, Francisco A. Guardiola, Pedro E. Saucedo
Summary: In pearl culture, the proper selection of anesthetic agents is important to reduce stress and facilitate handling of pearl oysters and abalone. This study evaluated the responses of red abalone to different anesthetics in terms of visual and physiological aspects. CO2 treatment showed the best results, while Eugenol should be avoided due to its side effects.
Article
Polymer Science
Seyedehsara Masoomi Dezfooli, Chloe Bonnot, Noemi Gutierrez-Maddox, Andrea C. Alfaro, Ali Seyfoddin
Summary: This study investigates a new delivery system for probiotics in black-footed abalone, using chitosan coated alginate beads. The results show that the encapsulated probiotics in CCALG beads have a higher load and controlled release in the digestive tract of animals. This new delivery method shows potential for efficient probiotic delivery in aquaculture.
JOURNAL OF APPLIED POLYMER SCIENCE
(2022)
Article
Biotechnology & Applied Microbiology
Li Sun, Yanlin Guo, Suoli Ma, Wenhao Fan, Yue Liu, Danni Liu, Yanjiao Zhang, Wenbing Zhang, Kangsen Mai
Summary: Replacing dietary kelp with Ulva lactuca and Gracilaria lemaneiformis significantly increased feed efficiency but decreased feed intake of abalone, while also improving their antioxidative capacity and immune response.
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Article
Fisheries
Jorge Caceres-Martinez, Roberto Cruz-Flores, Rebeca Vasquez-Yeomans, Gissel Tinoco-Orta
Summary: Candidatus Xenohaliotis californiensis (CXc) is considered the causal agent of withering syndrome in abalones and can be infected by a bacteriophage, while another presumed species of RLO called stippled Rickettsiales-like organism (ST-RLO) coexists. The ST-RLO is shown to be a different bacterium species and not susceptible to phage infection. Histological analysis revealed a relatively constant proportion of each RLO coexisting in infected abalones over time.
Article
Agriculture, Dairy & Animal Science
Seyedehsara Masoomi Dezfooli, Thao V. Nguyen, Tim Young, Noemi Gutierrez -Maddox, Andrea C. Alfaro, Ali Seyfoddin
Summary: Encapsulation technology has been used to develop more efficient delivery systems of nutrients and probiotics for aquaculture. This study investigated the effects of an encapsulated probiotics feed on the growth and health of New Zealand black-footed abalone. The results showed that the encapsulated feed significantly improved the growth and immunity of the abalone.
ANIMAL FEED SCIENCE AND TECHNOLOGY
(2023)
Article
Food Science & Technology
Sebastian Pizarro-Oteiza, Claudia Giovagnoli-Vicuna, Vilbett Briones-Labbarca, Fernando Salazar
Summary: The aim of this study was to analyze the quality of red abalone dehydrated under osmotic vacuum impregnation (OVI) as a pretreatment to the convection drying process. Response surface methodology was used to optimize osmotic impregnation conditions. The results showed that OVI had higher diffusion parameters and improved drying kinetics compared to conventional impregnation. The quality characteristics of the OVI sample were also superior, with increased tenderness, rehydration and water holding capacity, and reduced non-enzymatic browning and color change.
JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION
(2023)
Article
Food Science & Technology
Yamira Cepero-Betancourt, Gipsy Tabilo-Munizaga, Roberto Lemus-Mondaca, Mario Perez-Won, Ricardo Villalobos-Carvajal, Luis Moreno-Osorio
Summary: This study evaluated the effect of high pressure impregnation (HPI) as a pretreatment to the drying process of abalone samples. The results showed that HPI reduced the drying rates and improved the quality properties of dried abalones. The study also analyzed the protein conformational changes and determined the thermal properties of the samples. The findings are valuable for the potential application of HPI pretreatment in the development of high-quality dried abalones.
JOURNAL OF FOOD PROCESSING AND PRESERVATION
(2022)
Article
Fisheries
Matthew S. Bansemer, Jessica J. Buss, Georgia Macaulay, Tracey Bradley, Graeme Knowles, Cecile Dang, James O. Harris, Kathryn H. Wiltshire, Nick Savva, Shane Roberts
Summary: This study identified risk factors associated with summer mortality in farmed abalone through a case-control study. A predictive model was constructed to assess the risk of summer mortality, considering factors such as water temperature, age, and feed rate. Understanding these risk factors can inform management strategies and future research in abalone aquaculture.
Article
Fisheries
Jeremie Bauer, Rodrigo Beas-Luna, Misael Emeterio-Cerecero, Juan Vaca-Rodriguez, Gabriela Montano-Moctezuma, Julio Lorda
Summary: Abalone, one of Mexico's important small-scale fisheries, faces multiple challenges, including the threat from non-indigenous algae species. This study explored the impact of two introduced macroalgae on the growth and survival of juvenile red abalone in Baja California, Mexico. The results showed that abalone fed with one invasive algae performed significantly worse compared to those fed with the native algae. These findings are important for informing future fisheries and management efforts in the region.
NEW ZEALAND JOURNAL OF MARINE AND FRESHWATER RESEARCH
(2023)