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Annual Review of Marine Science Jan 2018
Topics: Marine Biology
PubMed: 29298135
DOI: 10.1146/annurev-ma-10-112517-100001 -
International Journal of Environmental... Aug 2022Aljustrel, Lousal and S. Domingos mines are located in the Iberian Pyrite Belt (IPB), one of the greatest massive sulfide ore deposits worldwide. These mines'...
Aljustrel, Lousal and S. Domingos mines are located in the Iberian Pyrite Belt (IPB), one of the greatest massive sulfide ore deposits worldwide. These mines' surrounding streams are affected by Acid Mine Drainage (AMD). The main purpose of this study was to understand AMD influence in the water quality and diatom behavior. Thus, waters and diatoms were sampled in 6 sites from the 3 selected mines on winter and summer of 2016. The highest concentrations were found in acidic sites: A3 (Aljustrel-Al, Cd, Cu, Fe and Zn (and lowest pH)) and L1 (Lousal-As, Mn, Ca, Mg, SO and conductivity). The most abundant diatom species was with 100% of dominance in A3 and S1 acidic sites, which puts in evidence this species adaptation to AMD harsh conditions. Multivariate cluster analysis allowed us to reinforce results from previous studies, where spatial differences were more relevant than seasonal ones. In 12 years (2004-2016), and with many transformations undertaken (re-opening and rehabilitation), there is a conservative behavior in the biological species (diatoms) and physicochemical concentrations (metals, pH and sulfates) from these three mining sites. This type of biogeochemical diagnosis is necessary for the sustainable use of these waters and the prevention of the polluting process, aimed to protect the water ecosystem and its biodiversity.
Topics: Acids; Diatoms; Ecosystem; Environmental Monitoring; Fresh Water; Hydrobiology; Portugal; Rivers; Water Pollutants, Chemical
PubMed: 36078537
DOI: 10.3390/ijerph191710810 -
Science (New York, N.Y.) Mar 2017
Topics: Animals; Eating; Esocidae; Food Chain; Freshwater Biology; Marine Biology; Ovum; Perches; Periodicals as Topic; Plastics; Scientific Misconduct; Sweden; Water Pollutants
PubMed: 28336620
DOI: 10.1126/science.355.6331.1254 -
Journal of Comparative Physiology. A,... Jun 2013
Topics: Adaptation, Physiological; Animals; Behavior, Animal; Ecosystem; Freshwater Biology; Mammals; Marine Biology; Perception; Sensation
PubMed: 23645446
DOI: 10.1007/s00359-013-0823-9 -
Marine Drugs Apr 2020Marine fungi have been studied since the first record of the species () on the rhizome of the sea grass by Durieu and Montagne in 1846 [1], butthey have largely been...
Marine fungi have been studied since the first record of the species () on the rhizome of the sea grass by Durieu and Montagne in 1846 [1], butthey have largely been neglected, even though it is estimated that there are greater than 10,000 marinefungal species [...].
Topics: Animals; Biological Products; Fungi; Marine Biology
PubMed: 32349436
DOI: 10.3390/md18050230 -
Marine Pollution Bulletin Jun 2013
Topics: Animals; Animals, Zoo; Conservation of Natural Resources; Dolphins; Marine Biology
PubMed: 23453815
DOI: 10.1016/j.marpolbul.2013.02.006 -
Trends in Ecology & Evolution Sep 2022Sessile invertebrates are frequently sampled and processed whole for downstream analyses. However, their apparent structural simplicity is deceptive as these organisms... (Review)
Review
Sessile invertebrates are frequently sampled and processed whole for downstream analyses. However, their apparent structural simplicity is deceptive as these organisms often harbour discrete compartments. These compartments have physicochemical conditions that differ markedly from neighbouring tissues, and that have likely evolved to support specific functions. Here, we argue that such compartments should be specifically targeted when characterising sessile invertebrate biology and we use the coral gastrovascular cavity to support our argument. This complex compartment displays steep and dynamic chemical gradients, harbours distinct microorganisms, and presumably plays a key role in coral biology. Disentangling the functions played by (and amongst) compartments will likely provide transformative insight into the biology of sessile invertebrates and their future under environmental change.
Topics: Animals; Anthozoa; Aquatic Organisms; Invertebrates; Marine Biology
PubMed: 35570130
DOI: 10.1016/j.tree.2022.04.008 -
Natural Product Reports Feb 2011
Review
Topics: Biological Products; Marine Biology; Molecular Structure
PubMed: 21152619
DOI: 10.1039/c005001f -
The ISME Journal Mar 2019Aquatic environments harbor a great diversity of microorganisms, which interact with the same patchy, particulate, or diffuse resources by means of a broad array of... (Review)
Review
Aquatic environments harbor a great diversity of microorganisms, which interact with the same patchy, particulate, or diffuse resources by means of a broad array of physiological and behavioral adaptations, resulting in substantially different life histories and ecological success. To date, efforts to uncover and understand this diversity have not been matched by equivalent efforts to identify unifying frameworks that can provide a degree of generality and thus serve as a stepping stone to scale up microscale dynamics to predict their ecosystem-level consequences. In particular, evaluating the ecological consequences of different resource landscapes and of different microbial adaptations has remained a major challenge in aquatic microbial ecology. Here, inspired by Ramon Margalef's mandala for phytoplankton, we propose a foraging mandala for microorganisms in aquatic environments, which accounts for both the local environment and individual adaptations. This biophysical framework distills resource acquisition into two fundamental parameters: the search time for a new resource and the growth return obtained from encounter with a resource. We illustrate the foraging mandala by considering a broad range of microbial adaptations and environmental characteristics. The broad applicability of the foraging mandala suggests that it could be a useful framework to compare disparate microbial strategies in aquatic environments and to reduce the vast complexity of microbe-environment interactions into a minimal number of fundamental parameters.
Topics: Adaptation, Physiological; Bacteria; Bacterial Physiological Phenomena; Ecosystem; Hydrobiology; Microbial Interactions; Phytoplankton
PubMed: 30446738
DOI: 10.1038/s41396-018-0309-4 -
Reports on Progress in Physics.... Aug 2022The growth and evolution of microbial populations is often subjected to advection by fluid flows in spatially extended environments, with immediate consequences for... (Review)
Review
The growth and evolution of microbial populations is often subjected to advection by fluid flows in spatially extended environments, with immediate consequences for questions of spatial population genetics in marine ecology, planktonic diversity and origin of life scenarios. Here, we review recent progress made in understanding this rich problem in the simplified setting of two competing genetic microbial strains subjected to fluid flows. As a pedagogical example we focus on antagonsim, i.e., two killer microorganism strains, each secreting toxins that impede the growth of their competitors (competitive exclusion), in the presence of stationary fluid flows. By solving two coupled reaction-diffusion equations that include advection by simple steady cellular flows composed of characteristic flow motifs in two dimensions (2D), we show how local flow shear and compressibility effects can interact with selective advantage to have a dramatic influence on genetic competition and fixation in spatially distributed populations. We analyze several 1D and 2D flow geometries including sources, sinks, vortices and saddles, and show how simple analytical models of the dynamics of the genetic interface can be used to shed light on the nucleation, coexistence and flow-driven instabilities of genetic drops. By exploiting an analogy with phase separation with nonconserved order parameters, we uncover how thesedrops harness fluid flows for novel evolutionary strategies, even in the presence of number fluctuations, as confirmed by agent-based simulations as well.
Topics: Biological Transport; Diffusion; Genetics, Population; Marine Biology; Plankton
PubMed: 35853344
DOI: 10.1088/1361-6633/ac8231