Article
Biotechnology & Applied Microbiology
Ellie R. Paine, Matthias Schmid, Juan Diego Gaitan-Espitia, Joshua Castle, Ian Jameson, John C. Sanderson, Catriona L. Hurd
Summary: The study investigated the growth and sexual development performance of Lessonia corrugata kelp under different temperature and light conditions, revealing an optimal temperature range for growth between 15.7 and 17.9 degrees Celsius and irradiance between 40 and 100 mu mol photons m(-2) s(-1). This species has a limited geographic range, found only around Tasmania, which may be affected by ongoing changes in oceanic conditions.
JOURNAL OF APPLIED PHYCOLOGY
(2021)
Article
Plant Sciences
Dan A. Smale, Harry Teagle, Stephen J. Hawkins, Helen L. Jenkins, Nadia Frontier, Cat Wilding, Nathan King, Mathilde Jackson-Bue, Pippa J. Moore
Summary: Climate change can have significant impacts on ecological communities by altering species distributions and the strength of species interactions. This study demonstrates that the warming-driven proliferation of a foundation species, warm-water kelp, leads to a breakdown of a habitat cascade and reduced biodiversity in temperate marine ecosystems. Furthermore, the warmer kelp forests had lower biomass of epiphytic algae and fewer mobile invertebrates, which could ultimately impact higher trophic levels.
JOURNAL OF ECOLOGY
(2022)
Article
Environmental Sciences
Hugo C. Vieira, Andreia C. M. Rodrigues, Silvia F. S. Pires, Jacinta M. M. Oliveira, Rui J. M. Rocha, Amadeu M. V. M. Soares, Maria D. Bordalo
Summary: Ocean warming and biological invasions are threatening coastal ecosystems, potentially interacting with each other. The spread of non-indigenous species poses a major challenge to biodiversity and ecosystem functions. Short-term exposure to the exudate of an invasive red seaweed affects the oxidative stress and neurophysiology of mussels, with a potential for increased toxic effects under warming conditions.
Article
Marine & Freshwater Biology
Marta Ronowicz, Piotr Kuklinski, Maria Wlodarska-Kowalczuk
Summary: The study aims to investigate the impact of glacial activity and depth on the variability of dominant kelp species in the Arctic fjord, Hornsund. Results show that environmental conditions have complex and species-specific effects on kelp morphology, and depth has a significant effect on the morphological traits of certain kelp species. Iceberg scouring may also cause a reduction in kelp size and biomass.
ESTUARINE COASTAL AND SHELF SCIENCE
(2022)
Review
Biodiversity Conservation
R. D'Archino, L. Piazzi
Summary: This study provides an overview of techniques and methods used in monitoring programs and impact evaluation studies utilizing macroalgal assemblage data. The number and goals of macroalgal monitoring programs vary greatly among geographical areas, with European Union Directives leading to the development of monitoring indices in Europe. In other regions, the focus is on mapping the distribution of kelps or Fucales.
ECOLOGICAL INDICATORS
(2021)
Article
Environmental Sciences
Mathinee Yucharoen, Sutinee Sinutok, Ponlachart Chotikarn, Pimchanok Buapet
Summary: Tropical shallow-water habitats have the highest biodiversity but are most vulnerable to climate warming. Research shows that elevated temperatures affect photosynthesis, chlorophyll content, and growth rates of corals, seagrasses, and macroalgae, with varying levels of thermotolerance observed among different species.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Environmental Sciences
Federico Pinna, Annalisa Caragnano, Luigi Piazzi, Federica Ragazzola, Patrizia Stipcich, Fabio Rindi, Giulia Ceccherelli
Summary: Understanding how coralline algae acclimatize to ocean warming is important for their survival. Transplant experiments revealed that the growth and conceptacle production of the alga were higher in colder sites, but the thickness growth was higher in warmer sites at greater depth. Higher light irradiance negatively affected the growth and conceptacle production of the transplanted algae. Overall, the results suggest that the alga has good adaptability to warmer conditions.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Shawna A. Foo, Christopher H. Teague, Gregory P. Asner
Summary: Increases in sea surface temperature can impact animal metabolism, leading to changes in benthic structure and the balance between algae and coral. A study in Hawai'i investigated the effects of annual sea surface temperature anomalies on benthic cover and herbivore density. The results showed that warming disrupted the normal relationship between herbivores and benthic cover, and increased algal turf cover was associated with increased herbivore density.
FRONTIERS IN MARINE SCIENCE
(2022)
Review
Fisheries
Fangfang Yang, Zhangliang Wei, Lijuan Long
Summary: Calcification by calcified marine macroalgae is crucial for algal growth and coral reef formation, but is vulnerable to changes in global climate. Studies on the mechanisms of macroalgal calcification are limited, but new approaches such as genomics offer avenues for new understandings.
MARINE AND FRESHWATER RESEARCH
(2021)
Article
Environmental Sciences
Fangfang Yang, Zhangliang Wei, Lijuan Long
Summary: This study investigated the responses of an articulated coralline alga to ocean warming and high light intensity, and found that both stressors significantly affected the growth, survival, photosynthesis, reproduction, and calcification of the alga. The results contribute to understanding the effects of warming and light on coralline algae and provide a theoretical basis for protecting the richness and diversity of calcified macroalgae.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Biology
J. M. Booth, M. Fusi, F. Giomi, E. C. N. Chapman, K. Diele, C. D. McQuaid
Summary: Coastal marine systems exhibit significant oxygen fluctuations that affect the metabolic response of invertebrates, showing that natural variability in oxygen levels can provide physiological benefits under ocean warming. This study emphasizes the importance of incorporating ecologically relevant oxygen variability into assessments of animal physiology and thermal response under climate warming.
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
(2021)
Article
Environmental Sciences
O. Arriaga, P. Wawrzynkowski, H. Ibanez, N. Muguerza, I. Diez, I. Perez-Ruzafa, J. M. Gorostiaga, E. Quintano, M. A. Becerro
Summary: Climate change is causing significant shifts in biological communities worldwide, including the degradation of marine communities. Previous research has predicted that southern Bay of Biscay canopy-forming subtidal macroalgal communities will shift into turf-forming Mediterranean-like communities by the end of the century. Our study demonstrated that updating predictive models with new data has the potential to yield reliable predictions and inform effective conservation strategies.
MARINE ENVIRONMENTAL RESEARCH
(2023)
Article
Environmental Sciences
Pamela T. Munoz, Fernanda Rodriguez-Rojas, Paula S. M. Celis-Pla, Americo Lopez-Marras, Fabio Blanco-Murillo, Ivan Sola, Celine Lavergne, Fernando Valenzuela, Rodrigo Orrego, Jose Luis Sanchez-Lizaso, Claudio A. Saez
Summary: This study evaluated the short- and long-term cellular tolerance responses in two brown macroalgae species of Dictyota genus under controlled laboratory conditions. The results showed that high salinity values induced changes in photosynthetic parameters and oxidative stress measurements, but did not cause significant damage to the photosynthetic apparatus. These findings contribute to the understanding of cellular tolerance strategies in Dictyota spp. and their potential use in biomonitoring desalination impacts in the field.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Engineering, Marine
Clara Mendoza-Segura, Emilio Fernandez, Pedro Beca-Carretero
Summary: Global change has facilitated the introduction of new species in marine ecosystems. This study used species distribution models to investigate the factors affecting the distribution of G. vermiculophylla globally. The results highlighted temperature and salinity as the main variables determining the presence of this species. Furthermore, predictions based on different climate scenarios showed a potential expansion in the distribution range of G. vermiculophylla, with the high-emission scenario indicating a significant loss in its southern range and potential establishment in arctic latitudes.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2023)
Article
Geosciences, Multidisciplinary
D. D. Bokuchava, V. A. Semenov
Summary: The Early 20th Century Warming in the northern high latitudes was comparable in magnitude to the present-day warming, but occurred at a time when the growth in atmospheric greenhouse gases was significantly less than in the last 40 years. The causes of ETCW remain a matter of debate, with a combination of internal variability and external natural and human impacts likely playing a role in this climate anomaly.
EARTH-SCIENCE REVIEWS
(2021)
Article
Environmental Sciences
Jesus M. Mercado, Francisco Gomez-Jakobsen, Nathalie Korbee, Antonio Aviles, Jose Bonomi-Barufi, Maria Munoz, Andreas Reul, Felix L. Figueroa
Summary: By studying the time series of temperature, salinity, and nutrients in the Strait of Gibraltar, it was found that Rugulopteryx okamurare can grow rapidly in the region under high salinity and temperature conditions, with a high nitrogen storage capacity.
MARINE POLLUTION BULLETIN
(2022)
Article
Environmental Sciences
N. Muguerza, O. Arriaga, I Diez, M. A. Becerro, E. Quintano, J. M. Gorostiaga
Summary: This research applies a community-level model to predict changes in subtidal macroalgal assemblages in the northern Iberian Peninsula, finding water temperature to be the most important factor shaping assemblage distribution and predicting potential changes in the future.
MARINE ENVIRONMENTAL RESEARCH
(2022)
Article
Biodiversity Conservation
N. Muguerza, I Diez, E. Quintano, J. M. Gorostiaga
Summary: This study examines changes in subtidal macroalgal assemblages in the south-eastern Bay of Biscay over a thirty-year period and finds a significant decline in total macroalgal biomass. The pattern of change differs across depths, with a decrease in biomass at depths of 3 to 10 m, but an increase at depths of 2 and 11 m. The decline in biomass is attributed to the disappearance of the dominant species Gelidium corneum, while the increase is mainly driven by small species and has not resulted in the development of a new canopy. These findings highlight the altered biomass and habitat provision roles of canopy-forming species in the ecosystem.
MARINE BIODIVERSITY
(2022)
Article
Biotechnology & Applied Microbiology
Maria Angeles Arrojo, Luciana Regaldo, Jesus Calvo Orquin, Felix L. Figueroa, Roberto Teofilo Abdala Diaz
Summary: This study focuses on evaluating the potential of Chlorella fusca to grow and synthesize metabolites of biotechnological interest after exposure to urban wastewater. The study also investigates the capacity of C. fusca to bioremediate the wastewater and the effect of the wastewater on the physiological status of C. fusca. The results show that wastewater has a stressful effect on the photosynthetic activity and lipid production of C. fusca. This study is important as it contributes to the understanding of using C. fusca biomass for biofuel production and other biotechnological areas.
Article
Chemistry, Medicinal
Julia Vega, Teresa S. Catala, Jorge Garcia-Marquez, Linn G. Speidel, Salvador Arijo, Niklas Cornelius Kunz, Christoph Geisler, Felix L. Figueroa
Summary: The biochemical composition, molecular diversity, and bioactivities of two alien invasive species, Asparagopsis armata and Rugulopteryx okamurae, in the southern Iberian Peninsula were analyzed. Spectrophotometric methods and FT-ICR-MS were used to identify 3042 molecular formulas from different extracts. A. armata had high nitrogenous and sulphur content, while R. okamurae was rich in carbonated compounds. R. okamurae showed higher antioxidant capacity and phenolic content, and A. armata exhibited antimicrobial activity against human and fish pathogens.
Article
Environmental Sciences
Talissa Barroco Harb, Julia Vega, Jose Bonomi-Barufi, Virginia Casas, Roberto Abdala-Diaz, Felix L. Figueroa, Fungyi Chow
Summary: The potential of seaweed extracts in cosmetic applications have been increasingly recognized due to their beneficial properties such as anti-aging and anticancer effects. This research aimed to evaluate the antioxidant, photoprotective, and cytotoxic properties of seaweed extracts from the Brazilian coast to propose their appropriate use as a sustainable resource.
WASTE AND BIOMASS VALORIZATION
(2023)
Article
Chemistry, Medicinal
Julia Vega, Daniela Barcenas-Perez, David Fuentes-Rios, Juan Manuel Lopez-Romero, Pavel Hrouzek, Felix Lopez Figueroa, Jose Cheel
Summary: Marine organisms have attracted biotechnological interest due to their diverse bioactive compounds. Five mycosporine-like amino acids (MAAs) were isolated from red macroalgae and a marine lichen using high-performance countercurrent chromatography (HPCCC). The MAAs were identified through HPLC, MS, and NMR analysis after the separation process.
Article
Chemistry, Multidisciplinary
Mercedes Gonzalez-Conde, Julia Vega, Felix Lopez-Figueroa, Miguel Garcia-Castro, Ana Moscoso, Francisco Sarabia, J. Manuel Lopez-Romero
Summary: This study reports the green synthesis of silver nanoparticles (AgNPs) using daisy petals, leek, and garlic skin as reducing agents and water as solvent. The AgNPs obtained showed high monodispersity and spherical shapes with sizes ranging from 5 to 35 nm. The incorporation of AgNPs with red algae extracts into cosmetic formulations demonstrated a synergistic effect in photoprotection, attributed to their antioxidant activity. Furthermore, the inclusion of red algae extracts in beta-cyclodextrin and pNIPAM nanoparticles showed stability and controlled release properties.
Article
Agriculture, Dairy & Animal Science
Jorge Garcia-Marquez, Jesus Vizcaino Antonio, Andre Barany, Alba Galafat, Gabriel Acien, Felix L. Figueroa, Javier Alarcon Francisco, Miguel Mancera Juan, Juan Antonio Martos-Sitcha, Salvador Arijo, Roberto Teofilo Abdala-Diaz
Summary: The study found that the combined administration of Chlorella fusca and ethanol-inactivated Vibrio proteolyticus significantly improved the growth performance and feed utilization of the thick-lipped grey mullet, while enhancing the lipid quality and n-3 polyunsaturated fatty acids. This has potential benefits for human nutrition.
Article
Microbiology
Jorge Garcia-Marquez, Rosa Maria Rico, Francisco Gabriel Acien, Juan Miguel Mancera, Felix L. Figueroa, Antonio Jesus Vizcaino, Francisco Javier Alarcon, Miguel Angel Morinigo, Roberto Teofilo Abdala-Diaz
Summary: This study investigates the effects of a blend of microalgae on Sparus aurata juveniles. The results show that the addition of microalgae tends to decrease body lipids and affects fatty acid profile. In particular, the diet containing 25% of the microalgae blend increases DHA levels. Additionally, this diet promotes appropriate microbial diversity and influences fatty acid composition and lipid metabolism in fish.
Article
Plant Sciences
Yessica A. Monsalve-Bustamante, Felix Lopez Figueroa, Julia Vega, Bruna Rodrigues Moreira, Miguel Puertas-Mejia, Juan C. Mejia-Giraldo
Summary: Overexposure to solar radiation has become a growing concern due to the damage it causes to the skin. Previous studies have shown that an extract from the Colombian high-mountain plant Baccharis antioquensis, enriched with glycosylated flavonoids, has potential as a photoprotector and antioxidant. This study aimed to develop a dermocosmetic formulation with broad-spectrum photoprotection using hydrolysates and purified polyphenols from this plant. The extraction, hydrolysis, purification, and characterization of the main compounds were evaluated, as well as the photoprotective capacity and safety of the formulation.
Article
Agriculture, Dairy & Animal Science
Jorge Garcia-Marquez, Daniel Alvarez-Torres, Isabel M. Cerezo, Marta Dominguez-Maqueda, Felix L. Figueroa, Francisco Javier Alarcon, Gabriel Acien, Eduardo Martinez-Manzanares, Roberto T. Abdala-Diaz, Julia Bejar, Salvador Arijo
Summary: This study assessed the impact of dietary green microalgae and ethanol-inactivated Vibrio proteolyticus on thick-lipped grey mullet juvenile fish. The results showed that the diet influenced the composition of intestinal microbiota without affecting its functionality. Additionally, the diet effectively regulated the transcription of stress and immune-related genes, enhancing the fish's resistance against stress and infections.
Article
Fisheries
Jorge Garcia-Marquez, Isabel M. Cerezo, Felix L. Figueroa, Roberto Teofilo Abdala-Diaz, Salvador Arijo
Summary: This study characterized the intestinal microbiota of wild thick-lipped grey mullets and explored its potential functionality on the host. The results showed higher diversity in the posterior section of the intestine compared to the anterior section. The predicted functions of the microbiota were related to various metabolic processes and toxin elimination.