Results 31 to 40 of about 293,781 (306)

Environmental DNA analysis confirms extant populations of the cryptic Irwin’s turtle within its historical range

BMC Ecology and Evolution, 2022
Background Approximately 50% of freshwater turtles worldwide are currently threatened by habitat loss, rural development and altered stream flows. Paradoxically, reptiles are understudied organisms, with many species lacking basic geographic distribution
Cecilia Villacorta-Rath, Thomas Espinoza, Bernie Cockayne, Jason Schaffer, Damien Burrows   +4 more
doaj   +1 more source

Measuring Complexity in an Aquatic Ecosystem

, 2013
We apply formal measures of emergence, self-organization, homeostasis, autopoiesis and complexity to an aquatic ecosystem; in particular to the physiochemical component of an Arctic lake. These measures are based on information theory.
A. Ramírez, C. Gershenson, C. Gershenson, C. Langton, D.J. Lizcano, S.A. Kauffman   +5 more
core   +1 more source

Water quality assessment, trophic classification and water resources management [PDF]

, 2010
Quantification of water quality (WQ) is an integral part of scientifically based water resources management. The main objective of this study was comparative analysis of two approaches applied for quantitative assessment of WQ: the trophic level index ...
Gal, Gideon, Hamilton, David P., Kasprzak, Peter, Ostapenia, Alexandr, Parparov, Arkadi   +4 more
core   +2 more sources

Ecological impact assessment of climate change and habitat loss on wetland vertebrate assemblages of the Great Barrier Reef catchment and the influence of survey bias

Ecology and Evolution, 2021
Wetlands are among the most vulnerable ecosystems, stressed by habitat loss and degradation from expanding and intensifying agricultural and urban areas.
Adam D. Canning, Nathan J. Waltham
doaj   +1 more source

Distributed Deep Learning and Energy-Efficient Real-Time Image Processing at the Edge for Fish Segmentation in Underwater Videos

IEEE Access, 2022
Using big marine data to train deep learning models is not efficient, or sometimes even possible, on local computers. In this paper, we show how distributed learning in the cloud can help more efficiently process big data and train more accurate deep ...
Mohammad Jahanbakht, Wei Xiang, Nathan J. Waltham, Mostafa Rahimi Azghadi   +3 more
doaj   +1 more source

The Origin, Succession, and Predicted Metabolism of Bacterial Communities Associated with Leaf Decomposition. [PDF]

, 2019
Intraspecific variation in plant nutrient and defensive traits can regulate ecosystem-level processes, such as decomposition and transformation of plant carbon and nutrients.
Gilbert, Jack A, Jackrel, Sara L, Wootton, J Timothy   +2 more
core   +1 more source

Capture—Incubate—Release: An Animal‐Friendly Approach to Assess Local Aquatic Macroinvertebrate Species Diversity Through Environmental DNA Metabarcoding

Environmental DNA
Metabarcoding of environmental DNA (eDNA) from water samples has become an important tool for aquatic biodiversity assessment because it is minimally invasive, time‐efficient, and generates comprehensive taxa lists.
Mandy Sander, Arne J. Beermann, Dominik Buchner, Martina Weiss, Marie‐Thérése Werner, Florian Leese   +5 more
doaj   +1 more source

Photosynthesis under far‐red light—evolutionary adaptations and bioengineering of light‐harvesting complexes

FEBS Letters, EarlyView.
Phototrophs evolved light‐harvesting systems adapted for efficient photon capture in habitats enriched in far‐red radiation. A subset of eukaryotic pigment‐binding proteins can absorb far‐red photons via low‐energy chlorophyll states known as red forms.
Antonello Amelii, Edoardo Andrea Cutolo, Daniele Montepietra, Claudia Battarra, Roberto Caferri, Stefano Capaldi, Zeno Guardini, Luca Dall'Osto, Roberto Bassi   +8 more
wiley   +1 more source

Biofouling of inlet pipes affects water quality in running seawater aquaria and compromises sponge cell proliferation [PDF]

PeerJ, 2015
Marine organism are often kept, cultured, and experimented on in running seawater aquaria. However, surprisingly little attention is given to the nutrient composition of the water flowing through these systems, which is generally assumed to equal in situ
Brittany E. Alexander, Benjamin Mueller, Mark J.A. Vermeij, Harm H.G. van der Geest, Jasper M. de Goeij   +4 more
doaj   +2 more sources

Morphological and genetic assessment of sympatric lenok species (genus Brachymystax) in the Onon River, Mongolia

Mongolian Journal of Biological Sciences, 2023
The genus Brachymystax is represented by three putative species that disjointedly inhabit the major river basins of central and northeast Eurasia. Brachymystax lenok and B.
Andrew Kaus, Michael Schäffer, Stefan Michalski, Matthias Pitsch, Daniel Karthe, Dietrich Borchardt   +5 more
doaj   +1 more source