Results 71 to 80 of about 7,708 (206)

Sponges are celebrated heterotrophs but also key primary producers on changing coral reefs

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Trophic interactions and nutrient cycling lay at the heart of ecosystem health and biodiversity. In recent years, our understanding of these drivers has been repeatedly challenged by rapid and unanticipated climatic effects, combined with an increasing awareness that ...
Michelle Achlatis, Rene M. van der Zande, Sam Arnold, Alphonsus C. Röttgering, Jeroen Schneider, Mathieu Pernice, Jasper M. de Goeij   +6 more
wiley   +1 more source

Using UAVs and Photogrammetry in Bathymetric Surveys in Shallow Waters

Applied Sciences, 2023
The use of UAV (unmanned aerial vehicle) platforms and photogrammetry in bathymetric surveys has been established as a technological advancement that allows these activities to be conducted safely, more affordably, and at higher accuracy levels.
Alexandre Almeida Del Savio, Ana Luna Torres, Mónica Alejandra Vergara Olivera, Sara Rocio Llimpe Rojas, Gianella Tania Urday Ibarra, Alcindo Neckel   +5 more
doaj   +1 more source

Advancing conservation breeding programs for marine invertebrates

Conservation Biology, EarlyView.
Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam, Bart Shepherd, Kylie Lev, Rebecca Albright   +3 more
wiley   +1 more source

Integrating 3D Reconstruction and AR for Enhancing Visitor Experience in Submerged Heritage Sites [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Underwater Cultural Heritage (UCH) sites offer unique opportunities for archaeological exploration and cultural tourism but remain difficult to interpret due to the environmental constraints of the underwater setting.
S. Fortuna, A. Lagudi, L. Scarfone, B. Davidde, F. Bruno, L. Barbieri   +5 more
doaj   +1 more source

Insights into the structure of grey reef shark aggregation, Carcharhinus amblyrhynchos (Bleeker, 1856), in two distinct channels of the Maldivian archipelago, Indian Ocean

Journal of Fish Biology, EarlyView.
Abstract The grey reef shark Carcharhinus amblyrhynchos is one of the most frequently encountered reef‐associated shark species in the Maldives, yet very little is known about its local size structure or population dynamics. This study provides new insights into two aggregations of C.
Andrea Parmegiani, Jacopo Gobbato, Rilwan Yoosuf, Davide Seveso, Paolo Galli, Andrew Darren Whitehead, Yameen Ismail, Simone Montano   +7 more
wiley   +1 more source

POSER: an oPen sOurce Simulation platform for tEaching and tRaining underwater photogrammetry [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Underwater photogrammetry presents unique challenges due to the optical properties of water that, if not correctly taken into account, might affect the quality of the survey and the related 2D and 3D products.
F. Menna, S. McAvoy, E. Nocerino, B. Tanduo, L. Giuseffi, A. Calantropio, F. Chiabrando, L. Teppati Losè, A. M. Lingua, S. Sandin, C. Edwards, B. Zgliczynski, D. Rissolo, F. Kuester   +13 more
doaj   +1 more source

Seagrass Sampling Methods in a Community‐Based Setting, A Comparative Analysis

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT Effective monitoring of seagrass is essential for the conservation of this critical marine ecosystem. The choice of monitoring method depends on balancing accuracy, efficiency, cost and accessibility, especially in contexts requiring community engagement and ownership.
Edward M. Mwikamba, Michael N. Githaiga, Robert A. Briers, Claudia Foster, Mark Huxham   +4 more
wiley   +1 more source

Effects of different swimming race constraints on turning movements [PDF]

, 2014
The aim of this study was to investigate the effects of different swimming race constraints on the evolution of turn parameters. One hundred and fifty-eight national and regional level 200-m (meters) male swimming performances were video-analyzed using ...
Mallo Sainz, Javier, Navandar, Archit, Navarro Cabello, Enrique, Veiga Fernandez, Santiago   +3 more
core   +2 more sources

The WAS Project—Waterscape Archaeology in Sicily at Isola delle Femmine (PA, Italy): Submerged and Emerged Heritage

Heritage, 2022
The WAS—Waterscape Archaeology in Sicily—project is dedicated to underwater cultural heritage mapping, knowledge and awareness of the cultural heritage, dissemination, and analysis of the submerged environment concerning the coast.
Giovanna Bucci
doaj   +1 more source

Mapping River Bed Topography in Whitewater Rapids Using Bathymetric LiDAR

River Research and Applications, Volume 42, Issue 4, Page 886-900, May 2026.
ABSTRACT Bathymetric LiDAR captures river topography efficiently for clear and shallow water, but for mountain rivers, whitewater rapids still pose challenges. This study proposes a novel method to enable the extraction of bottom returns specifically in turbulent whitewater sections.
Jan Rhomberg‐Kauert, Theresa Himmelsbach, Florian Pöppl, Lucas Dammert, Martin Pfennigbauer, Gottfried Mandlburger   +5 more
wiley   +1 more source