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article

Allelopathic effect of Fucus vesiculosus (brown alga) and Coccotylus brodiei (red alga) on the growth and photosynthesis performance of Baltic cyanobacteria

Gracjana Budzałek, Sylwia Śliwinska-Wilczewska

Annales Universitatis Paedagogicae Cracoviensis Studia Naturae > 2021 > 6

In aquatic ecosystems, allelopathic activity depends on the production and secretion of active allelopathic compounds and their effective dispersal in the environment. In addition, macroalgae have been found to produce active metabolites that affect other organisms that compete with them for nutrients. However, the allelopathic activity of Baltic red and brown macroalgae on filamentous cyanobacteria...

article

Voyages of seaweeds: The role of macroalgae in sediment transport

Christopher J. Garden, Abigail M. Smith, C.J. Garden, A.M. Smith

Sedimentary Geology > 2015 > 318 > Complete > 1-9

At least 26 genera of macroalgae have been observed attached to and carrying sedimentary materials (rock, veneer, or carbonate) to beaches and the sea floor. Most studies have been descriptive, with few quantifying flux rates. This study reviews and quantifies the mainly-biological literature on macroalgae-mediated sediment transport in coastal and marine environments. Dislodgement of macroalgae from...

article

Increasing the health benefits of bread: Assessment of the physical and sensory qualities of bread formulated using a renin inhibitory Palmaria palmata protein hydrolysate

Ciarán Fitzgerald, Eimear Gallagher, Linda Doran, Mark Auty, more

LWT - Food Science and Technology > 2014 > 56 > 2 > 398-405

This study examined the textural and sensory effects of bread formulated using a Palmaria palmata protein hydrolysate with in vitro renin inhibitory properties. Four formulations were examined; a wheat flour control bread, a control bread containing 4% P. palmata protein hydrolysate, a buckwheat bread consisting of a blend of 70% wheat: 30% buckwheat, and a fourth formulation of the buckwheat bread...

article

Nitrous oxide emission from Ulva lactuca incubated in batch cultures is stimulated by nitrite, nitrate and light

Kristian Rost Albert, Annette Bruhn, Per Ambus, K.R. Albert, more

Journal of Experimental Marine Biology and Ecology > 2013 > 448 > Complete > 37-45

Biomass yields from some species of macroalgae exceed the yields in traditional terrestrial production systems. This renewable carbon source possesses a potential for energy purposes and thus reduction in fossil fuel carbon dioxide (CO ₂ ) emissions. Previous experiments have indicated that nitrous oxide (N ₂ O) may be produced by green algae. We investigated the N ₂ O emissions...

article

Impact of cyclones and aquatic macrophytes on recruitment and landings of tiger prawns Penaeus esculentus in Exmouth Gulf, Western Australia

N.R. Loneragan, M. Kangas, M.D.E. Haywood, R.A. Kenyon, more

Estuarine, Coastal and Shelf Science > 2013 > 127 > Complete > 46-58

The cover of seagrasses and macroalgae, landings and fishery-independent measures of spawning stock and recruitment for brown tiger prawns, were monitored immediately following a major cyclone in Exmouth Gulf, Western Australia in March 1999. Anecdotal evidence on the extent of seagrass from 1990 to 1998 suggests that the cyclone caused a major, immediate disruption and loss of the seagrass/macroalgal...

article

Improving growth models of cultivated sugar kelp, Saccharina latissima, by accounting for intraspecific variation in thermal tolerance

Ruby Krasnow, Sara Gonzalez, Scott Lindell

Journal of the World Aquaculture Society > 55 > 5 > n/a - n/a

Dynamic models of sugar kelp (Saccharina latissima) growth are used to estimate the production potential of seaweed aquaculture in many regions around the world. These models do not currently account for the existence of S. latissima ecotypes that are adapted to regional environmental conditions, particularly temperature. We tested the hypothesis that recalibrating the temperature parameters of a...

article

Evaluating UAV‐based multispectral imagery for mapping an intertidal seagrass environment

Eylem Elma, Rachel Gaulton, Thomas R. Chudley, Catherine L. Scott, more

Aquatic Conservation: Marine and Freshwater Ecosystems > 34 > 8 > n/a - n/a

Worldwide seagrass habitats are under severe anthropogenic threat. In the United Kingdom (UK), the health of habitats of the widely distributed Zostera species is particularly threatened by eutrophication that can lead to detrimental macroalgae overgrowth. To manage and conserve seagrass habitats, effective monitoring tools are required. We use an off‐the‐shelf consumer‐grade multispectral (RGB,...

article

Seaweeds as holobionts: Current state, challenges, and potential applications

Ezequiel M. Marzinelli, Torsten Thomas, Sebastian Vadillo Gonzalez, Suhelen Egan, more

Journal of Phycology > 60 > 4 > 785 - 796

Seaweeds play a strong ecological and economical role along the world's coastlines, where they support industries (e.g., aquaculture, bioproducts) and essential ecosystem services (e.g., biodiversity, fisheries, carbon capture). Evidence from wild and cultured seaweeds suggests that microorganisms play crucial roles in their health and functioning, prompting the need for considering seaweeds and their...

article

Kelp dissolved organic carbon release is seasonal and annually enhanced during senescence

Andrew Kalani Carlson, Takeshi Yoshimura, Isao Kudo

Journal of Phycology > 60 > 4 > 980 - 1000

Macroalgae influence local and global biogeochemical cycles through their production of dissolved organic carbon (DOC). Yet, data remain scarce and annualized estimates are typically based on high growth periods without considering seasonal variability. Although the mechanisms of active exudation and passive leakage need clarifying, ecophysiological stress is known to enhance DOC release. Therefore,...

article

Thermal refugia reinforce macroalgal resilience against climate change in the southeastern Bay of Biscay

O. Arriaga, P. Wawrzynkowski, N. Muguerza, I. Díez, more

Global Change Biology > 30 > 8 > n/a - n/a

Rising global temperatures present unprecedented challenges to marine ecosystems, demanding a profound understanding of their ecological dynamics for effective conservation strategies. Over a comprehensive macroalgal assessment spanning three decades, we investigated the spatiotemporal evolution of shallow‐water benthic communities in the southern Bay of Biscay, uncovering climate‐resilient areas...

article

Sustainable bioplastics from seaweed polysaccharides: A comprehensive review

Dillirani Nagarajan, Guruvignesh Senthilkumar, Chiu‐Wen Chen, N. Karmegam, more

Polymers for Advanced Technologies > 35 > 8 > n/a - n/a

The use of macroalgae for food has been extensive in Asia historically. However, there has been a renewed interest at present in macroalgae due to its recognition as a potential carbon capture agent and a blue carbon donor besides their utility in biofuel production. Bioplastics is an umbrella term for a wide variety of polymers that can be either biobased or biodegradable, or both. Macroalgal polysaccharides...

article

Unravelling the role of oceanographic connectivity in the distribution of genetic diversity of marine forests at the global scale

Térence Legrand, Eliza Fragkopoulou, Lauren Vapillon, Lidiane Gouvêa, more

Global Ecology and Biogeography > 33 > 8 > n/a - n/a

Aim Genetic diversity of marine forests results from complex interactions of eco‐evolutionary processes. Among them, oceanographic connectivity driven by dispersal through water transport is hypothesized to play a pivotal role, yet its relative contribution has not been addressed at the global scale. Here, we test how present‐day oceanographic connectivity is correlated with the distribution of genetic...

article

Large‐scale deviations between realized and fundamental thermal niches in global seaweed distributions

Philipp Laeseke, Brezo D.‐C. Martínez, Kai Bischof

Diversity and Distributions > 30 > 8 > n/a - n/a

Aim Climate change has profound effects on species' distributions, and it is crucial to understand how well physiological limits correspond to distribution patterns to provide realistic estimations of future range shifts and/or extinctions. Seaweeds are foundation species of global coastal ecosystems, and sea surface temperature is a main predictor to explain their distributions and redistributions...

article

Marine macro algae‐derived activated carbon an efficient bio‐sorbent for Malachite green removal from wastewater

Sayed Amreen, Suresh Kumar Dash, Brundabana Naik, Aditya Kishore Dash, more

Environmental Quality Management > 34 > 1 > n/a - n/a

Extensive use of dyes by the textile industries poses a serious threat to the aquatic flora and fauna. Low‐cost bio‐sorbent derived from marine red, Gracilaria verrucosa (RAC), and green macroalgae, Enteromorpha intestinalis (GAC) have been used for effective removal of unsafe Malachite Green (MG) dye. Batch study was conducted to determine the different bio‐sorption parameters such as biochar dosage,...

article

The habitat preferences of Idiosepius pygmaeus and their use of conspecific cues

Tess L. Jenkins, Jan M. Strugnell, Blake L. Spady

Marine Ecology > 45 > 3 > n/a - n/a

The two‐toned pygmy squid (Idiosepius pygmaeus, Steenstrup, 1881) is a small, tropical cephalopod that inhabits seagrass meadows and is known to attach to blades of seagrass using a specialised adhesive organ. A global decline in seagrass habitat due to anthropogenic disturbances may threaten the species that rely on seagrass meadows for shelter, foraging and other crucial activities. It is unclear...

article

The effect of sedimentation on spore settlement and recruitment of the endemic Arctic kelp, Laminaria solidungula (Phaeophyceae)

Jaide Phelps, Kenneth Dunton, Brenda Konar, Schery Umanzor, more

Journal of Phycology > 60 > 3 > 741 - 754

Environmental changes associated with rapid climate change in the Arctic, such as the increased rates of sedimentation from climatic or anthropogenic sources, can enhance the impact of abiotic stressors on coastal ecosystems. High sedimentation rates can be detrimental to nearshore kelp abundance and distribution, possibly due to increased mortality at the spore settlement stage. Spore settlement...

article

First genomic snapshots of recolonising lineages following a devastating earthquake

Felix Vaux, Elahe Parvizi, Grant A. Duffy, Ludovic Dutoit, more

Ecography > 2024 > 6 > n/a - n/a

Large‐scale disturbance events provide ideal opportunities to directly study recolonisation processes in natural environments, via the removal of competitors and the formation of newly vacant habitat. A high magnitude earthquake in central New Zealand in 2016 created major ecological disturbance, with coastal tectonic uplift of up to ~ 6 m extirpating vast swathes of intertidal organisms. One of the...

article

The paleoredox context of early eukaryotic evolution: insights from the Tonian Mackenzie Mountains Supergroup, Canada

Katie M. Maloney, Galen P. Halverson, Maxwell Lechte, Timothy M. Gibson, more

Geobiology > 22 > 3 > n/a - n/a

Tonian (ca. 1000–720 Ma) marine environments are hypothesised to have experienced major redox changes coinciding with the evolution and diversification of multicellular eukaryotes. In particular, the earliest Tonian stratigraphic record features the colonisation of benthic habitats by multicellular macroscopic algae, which would have been powerful ecosystem engineers that contributed to the oxygenation...

article

The role of extracted Patchouli residue microparticle on the mechanical and microbial properties macroalgae biopolymer

Syaifullah Muhammad, C. K. Abdullah, Azfaralariff Ahmad, Abdul Khalil H.P.S., more

Polymer Composites > 45 > 7 > 6689 - 6703

Macroalgae is extensively being used to develop eco‐friendly biopolymer or biodegradable films, but have inferior mechanical strength. This study aims to enhance the mechanical properties of seaweed films by incorporating Patchouli microparticles (PMP) derived from dried Patchouli plants (DP‐PMP) and extracted residue (ER‐PMP) from Patchouli extraction process widely use in the perfume and cosmetic...

article

Latitudinal biodiversity gradients of rocky intertidal assemblages: Spatial scales and complex associations with environmental factors

Hadiyanto Hadiyanto, Jane Prince, Renae K. Hovey

Marine Ecology > 45 > 2 > n/a - n/a

Latitudinal biodiversity gradients vary across taxonomic groups and spatial scales, and various environmental factors have been associated with those patterns. However, it remains unknown whether taxonomic groups with strong ecological associations have similar or different latitudinal patterns. Macroalgae are foundation assemblages on rocky intertidal shores and are often inhabited by invertebrates,...

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Search results

Allelopathic effect of Fucus vesiculosus (brown alga) and Coccotylus brodiei (red alga) on the growth and photosynthesis performance of Baltic cyanobacteria

Voyages of seaweeds: The role of macroalgae in sediment transport

Increasing the health benefits of bread: Assessment of the physical and sensory qualities of bread formulated using a renin inhibitory Palmaria palmata protein hydrolysate

Nitrous oxide emission from Ulva lactuca incubated in batch cultures is stimulated by nitrite, nitrate and light

Impact of cyclones and aquatic macrophytes on recruitment and landings of tiger prawns Penaeus esculentus in Exmouth Gulf, Western Australia

Improving growth models of cultivated sugar kelp, Saccharina latissima, by accounting for intraspecific variation in thermal tolerance

Evaluating UAV‐based multispectral imagery for mapping an intertidal seagrass environment

Seaweeds as holobionts: Current state, challenges, and potential applications

Kelp dissolved organic carbon release is seasonal and annually enhanced during senescence

Thermal refugia reinforce macroalgal resilience against climate change in the southeastern Bay of Biscay

Sustainable bioplastics from seaweed polysaccharides: A comprehensive review

Unravelling the role of oceanographic connectivity in the distribution of genetic diversity of marine forests at the global scale

Large‐scale deviations between realized and fundamental thermal niches in global seaweed distributions

Marine macro algae‐derived activated carbon an efficient bio‐sorbent for Malachite green removal from wastewater

The habitat preferences of Idiosepius pygmaeus and their use of conspecific cues

The effect of sedimentation on spore settlement and recruitment of the endemic Arctic kelp, Laminaria solidungula (Phaeophyceae)

First genomic snapshots of recolonising lineages following a devastating earthquake

The paleoredox context of early eukaryotic evolution: insights from the Tonian Mackenzie Mountains Supergroup, Canada

The role of extracted Patchouli residue microparticle on the mechanical and microbial properties macroalgae biopolymer

Latitudinal biodiversity gradients of rocky intertidal assemblages: Spatial scales and complex associations with environmental factors

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