Results 91 to 100 of about 30,195 (348)

The effects of seasonality and parasitism on diet and habitat selection in the common periwinkle

Oikos, EarlyView.
The common periwinkle Littorina littorea is an ecologically important grazer, known for its strong influence on algal communities and its role in structuring ecosystems. It serves as the first intermediate host for several trematode species in the Baltic Sea, especially for the fluke Cryptocotyle lingua.
Friederike Gronwald, Claudia Bommarito, Dakeishla M. Díaz‐Morales, Alessandro Manfrin, Cindy Martinez Reyes, Milen Nachev, Bernd Sures, Florian Weinberger   +7 more
wiley   +1 more source

Multifrequency seafloor acoustic backscatter as a tool for improved biological and geological assessments – updating knowledge, prospects, and challenges

Frontiers in Remote Sensing
Multibeam echosounders (MBES) have emerged as a primary tool for seafloor mapping over the past three decades. Technological advancements and improved data processing methods have increased the accuracy and spatial resolution of bathymetric measurements,
Pedro S. Menandro, Benjamin Misiuk, Benjamin Misiuk, Jens Schneider von Deimling, Alex C. Bastos, Craig J. Brown   +5 more
doaj   +1 more source

Improvement of Image Alignment Using Camera Attitude Information [PDF]

, 2001
We discuss a proposed technique for incorporation of information from a variety of sensors in a video imagery processing pipeline. The auxiliary information allows one to simplify computations, effectively reducing the number of independent parameters in
Cutter, Randy G, Jr., Huff, Lloyd C, Rzhanov, Yuri   +2 more
core   +2 more sources

Blending single beam RoxAnn and multi-beam swathe QTC hydro-acoustic discrimination techniques for the Stonehaven area, Scotland, UK [PDF]

, 2011
Surface properties of the seabed in a 180 km2 area of coastal waters (14-57 m depth) off northeast Scotland were mapped by hydro-acoustic discrimination using single and multi-beam echosounders linked to signal processing systems (RoxAnn for the single ...
Armstrong, F., Heath, Michael, Serpetti, N., Witte, U.   +3 more
core   +1 more source

Nutritional effects on the expression of cryptic pigmentation in freshwater isopods

Oikos, EarlyView.
Cryptic pigmentation is a key phenotypic adaptation that helps many benthic invertebrates evade visual predators. However, little is known about whether and how the expression of pigmentation phenotypes that match the habitat background is influenced by the availability of nutritional resources.
Moritz D. Lürig, Blake Matthews, Carsten J. Schubert, Osamu Kishida   +3 more
wiley   +1 more source

Marine trophic architecture and hidden ecological connections in the Strait of Magellan: keystone species and ecosystem resilience

Oikos, EarlyView.
Understanding the ecological implications of species coexistence is central to biodiversity studies and to identify environmental and anthropogenic drivers of ecosystem dynamics, where ecological network analysis offers valuable insights. This study examines the complexity, structure, and potential responses to disturbances of the Strait of Magellan's ...
Claudia D. Andrade, Taryn Sepúlveda, Cristóbal Rivera, Cristian Aldea, Tomás I. Marina   +4 more
wiley   +1 more source

Mapping Coral Reef Habitats with ICESat-2 and Satellite Imagery: A Novel Spectral Unmixing Approach Compared to Machine Learning

Remote Sensing
Accurate, scalable mapping of coral reef habitats is essential for monitoring ecosystem health and detecting change over time. In this study, we introduce a novel mathematically based nonlinear spectral unmixing method for benthic habitat classification,
Gabrielle A. Trudeau, Mark Lyon, Kim Lowell, Jennifer A. Dijkstra   +3 more
doaj   +1 more source

The impact of deep-sea fisheries and implementation of the UNGA Resolutions 61/105 and 64/72. Report of an international scientific workshop [PDF]

, 2011
The scientific workshop to review fisheries management, held in Lisbon in May 2011, brought together 22 scientists and fisheries experts from around the world to consider the United Nations General Assembly (UNGA) resolutions on high seas bottom ...
A. Benn, A. Kennys, A.D. Rogers, A.J. Davies, A.J. Grehan, A.J. Penney, D.M. Bailey, D.S.M. Billett, I.G. Priede, J. Guinotte, J.A. Ardron, J.A. Koslow, J.A.A. Perez, K. Baker, L. Watling, M. Gianni, M.R. Clark, P.Durán Muñoz, P.M. Arana, P.P.E. Weaver, R.S. Santos, S.D. Fuller, T. Morato   +22 more
core  

The influence of multiple stressors on the spatial distribution of corals

People and Nature, EarlyView.
Abstract Coral reef ecosystems are widely threatened by global change, yet the cumulative impacts of multiple interacting stressors remain difficult to quantify over space and time. We evaluate how long‐term artisanal fishing effort, blast fishing, human population density and marine protected areas (MPAs) interact with biophysical and seascape ...
Jennifer Coyle Selgrath, Sarah E. Gergel, Amanda C. J. Vincent   +2 more
wiley   +1 more source

Benthic Habitat Mapping using Sentinel 2A: A preliminary Study in Image Classification Approach in An Absence of Training Data

, 2021
Munawaroh Munawaroh, A W Rudiastuti, RS Dewi, YH Ramadhani, Ati Rahadiati, Dewayany Sutrisno, Wiwin Ambarwulan, I Pujawati, E Suryanegara, S D R Wijaya, Sri Hartini   +10 more
openalex   +1 more source