Ulva represents an important raw material due to its nutritional value. In addition, it contains cell wall polysaccharides, attractive for various applications. Ulva ohnoi is commercially cultivated in Baja California (México) and successfully marketed as human food. The valorization of this biomass as a source of ulvans and cellulose is proposed through a sequential extraction approach. As a first step, an ulvan with a 22.7%...

Long-term production of a few species of Eucheuma and Kappaphycus from the Indo-Pacific Ocean supports the global carrageenan industry. The widespread use of vegetative propagation has resulted in low genetic diversity among farmed populations, making these crops increasingly vulnerable to diseases and environmental stressors, and resulting in declining yields and reduced biomass production over time. Insufficient efforts to d...

The study investigates the susceptibility of Atlantic salmon ( Salmo salar ) and Pacific salmon species (pink salmon, Oncorhynchus gorbuscha ; coho salmon, Oncorhynchus kisutch ; and chum salmon, Oncorhynchus keta ) to the parasitic salmon lice ( Lepeophtheirus salmonis ). The research had two main objectives: to characterize the morphology of the scaly skin in four salmonid species and to compare the cellular response at the...

Gracilaria cornea was exposed to different irradiance intensities (low, moderate, and high) and light qualities (white and white + blue) in experimental cultures. Photosynthetic physiology was measured through daily growth rate, maximum photosynthesis, maximum photochemical efficiency, pigment content (chlorophyll a , phycobiliproteins, carotenoids), and elemental content of carbon and nitrogen. Gracilaria cornea effectively a...

The 24th edition of the International Seaweed Symposium (ISS), an academic-industry event that dates back to 1952, was held for the first time in Oceania. The local organizing committee chaired by Professor Catriona Hurd, Institute for Marine and Antarctic Studies, University of Tasmania, and Professor Michael A. Borowitzka, Murdoch University, Western Australia worked tirelessly to curate a program that balanced scientific ri...

Single cell genomics encompasses a suite of rapidly maturing technologies that measure the molecular profiles of individual cells within target samples. These approaches provide a large up‐step in biological information compared to long‐established ‘bulk’ methods that profile the average molecular profiles of all cells in a sample, and have led to transformative advances in understanding of cellular biology, particularly in hu...

Disease and parasitism cause major welfare, environmental and economic concerns for global aquaculture. In this review, we examine the status and potential of technologies that exploit genetic variation in host resistance to tackle this problem. We argue that there is an urgent need to improve understanding of the genetic mechanisms involved, leading to the development of tools that can be applied to boost host resistance and...

In this paper, we outline the need for a coordinated international effort toward the building of an open-access Global Ocean Oxygen Database and ATlas (GO 2 DAT) complying with the FAIR principles (Findable, Accessible, Interoperable, and Reusable). GO 2 DAT will combine data from the coastal and open ocean, as measured by the chemical Winkler titration method or by sensors (e.g., optodes, electrodes) from Eulerian and Lagrang...

Understanding the causal factors of livelihood challenges and associated vulnerabilities is essential for developing viable adaptation strategies. However, clarifying which livelihood challenges can be attributed to which causal factors remains a challenge. In this paper, we used a case study in Vanuatu to show how local populations attribute subsistence challenges to underlying causes. Particularly, we are interested in wheth...