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Coastal waters are increasingly susceptible to low-oxygen conditions where circulation or nutrient inputs have been altered by anthropogenic activities, leading to increased occurrence of coastal hypoxia worldwide. Low-oxygen conditions also occur naturally in coastal settings, typically in bottom water or landward of sills where circulation is weak. Here we identify and characterize a persistent, low-oxygen layer in the mid-w...
Diet-dependent, beneficial and adverse effects of rapamycin on life span of Drosophila melanogasterNARA Subscribed
Rapamycin supplementation has been reported to extend life spans in numerous species, including Drosophila melanogaster , but a recent study in this laboratory revealed a marked life-shortening effect in y w male flies. The experiments reported here were performed to characterize conditions under which rapamycin could extend or shorten life spans in five fly strains. On a cornmeal/torula yeast-based medium, rapamycin extended...
Brown trout ( Salmo trutta L.) are ecologically and economically important, but like many salmonids their populations are declining. Trout exhibit a high level of phenotypic plasticity, ranging from freshwater residency to anadromy. This complexity causes problems for assessment and constrains application of adult catch‐based assessment methods that are commonly applied to other species such as Atlantic salmon. Juvenile method...
Site Selection for Seaweed Biofilters Installation within the Great Barrier Reef World Heritage AreaNARA Subscribed
Elevated terrestrial nutrient loads entering coastal waters in northeastern Australia are adversely affecting the Great Barrier Reef World Heritage Area. ‘Seaweed biofilters’ have been proposed as a mechanism for the bioextraction of elevated nutrient levels from coastal environments, with potential to target diffuse source nutrient discharges while generating biomass with potential applications as fertiliser, soil conditionin...
Different Beta‐Diversity Frameworks Reveal Contrasting Roles of Species Abundance Distributions and Spatial AggregationNARA Subscribed
Aim Determining why community composition changes from place‐to‐place (spatial β‐diversity) is central to advancing biodiversity theory and conservation of threatened species. Spatial β‐diversity can occur most simply due to random sampling effects from the larger species‐pool, such as the random placement and distribution of individuals and species. However, ecological processes can also generate intraspecific aggregation cha...
Precision measurement of the Ds*+-Ds+ meson mass differenceNARA Subscribed
Endemic species with narrow ranges are vulnerable to extirpation, and understanding their habitat needs is fundamental to effective management. The Etowah Bridled Darter, Percina freemanorum , is a recently described fish species endemic to the Upper Etowah River in Georgia. Little is known about how its habitat requirements differ from its sister taxon, P. kusha, with which it was previously synonymous . Our objectives were t...