Complementarity of rotating video and underwater visual census for assessing species richness, frequency and density of reef fish on coral reef slopes. [PDF]
PLoS One, 2014 Estimating diversity and abundance of fish species is fundamental for understanding community structure and dynamics of coral reefs. When designing a sampling protocol, one crucial step is the choice of the most suitable sampling technique which is a compromise between the questions addressed, the available means and the precision required.
Mallet D +4 more
europepmc +7 more sources
Automatic Extraction and Counting of Fish from Underwater Videos Using YOLO-Based Deep Learning Algorithms [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesIn the context of increasing pressure on marine species, effective and automated methodologies for biodiversity monitoring are essential, particularly in sensitive ecosystems such as the Mediterranean Sea.
F. Gallitto +8 more
doaj +1 more source
Croatian Journal of Fisheries, 2021 Marine underwater habitats dominated by seagrass Posidonia oceanica play an essential role in fish community assembly, affecting taxonomic and functional diversity, abundance and fish behavior.
Čižmek Ivana Zubak +3 more
doaj +1 more source
Local ecological knowledge and scientific data reveal overexploitation by multigear artisanal fisheries in the southwestern Atlantic. [PDF]
PLoS ONE, 2014 In the last decades, a number of studies based on historical records revealed the diversity loss in the oceans and human-induced changes to marine ecosystems. These studies have improved our understanding of the human impacts in the oceans.
Mariana G Bender +6 more
doaj +1 more source
A potential-flow based flight simulator for an underwater glider [PDF]
, 2013 Underwater gliders are recent innovative types of autonomous underwater vehicles (AUVs) used in ocean exploration and observation. They adjust their buoyancy to dive and to return to the ocean surface.
LAURENS, Jean-Marc +4 more
core +1 more source
Optimising sampling of fish assemblages on intertidal reefs using remote underwater video [PDF]
PeerJ, 2023 Background Assessing fish assemblages in subtidal and intertidal habitats is challenging due to the structural complexity of many of these systems. Trapping and collecting are regarded as optimal ways to sample these assemblages, but this method is ...
Katherine R. Erickson +2 more
doaj +2 more sources
Correction to: "Cameras or Divers? How Baited Remote Underwater Videos and 'Long Swims' Underwater Visual Census Complement Each Other on Coral Reefs". [PDF]
Ecol Evoleuropepmc +2 more sources
Environmental DNA helps reveal reef shark distribution across a remote archipelago
Ecological Indicators, 2023 Environmental DNA (eDNA) methods are being increasingly used in proof-of-concept studies to detect shark species, many populations of which are experiencing severe declines. These methods are widely seen as the future of biodiversity monitoring, but they
Nicholas Dunn +13 more
doaj +1 more source
The condition of megabenthos and reef fish in coral reef ecosystems in Aru Islands National Conservation Area, Southeast Maluku, Indonesia [PDF]
E3S Web of Conferences, 2023 The waters of the Aru Islands are part of the National Marine Protected Areas (MNR), and have extensive coral reefs with high biodiversity. The study was conducted in October 2016 at twelve stations to determine the status of coral cover, composition ...
Souhoka Jemmy +7 more
doaj +1 more source
Croatian Journal of Fisheries, 2022 Underwater visual census (UVC) is a commonly used approach for assessing fish density and biomass. Iskenderun Bay, comprising the Samandağ coast in Turkey, is the most important introduction pathway of alien species in the northeastern Mediterranean.
Turan Cemal, Doğdu Servet Ahmet
doaj +1 more source