Results 41 to 50 of about 18,242 (227)

Indications of marine benthos occurrence from multi-spectral multi-beam backscatter data: a case study in the North Sea

Frontiers in Earth Science, 2023
To facilitate the conservation of seafloor habitats and planning of offshore activities, there is a growing need for mapping marine benthos in an effective and efficient way.
Qian Bai, Sebastiaan Mestdagh, Mirjam Snellen, Dick G. Simons   +3 more
doaj   +1 more source

Rapid loss, and slow recovery, of coral reef structural complexity resulting from a prolonged marine heatwave

Journal of Animal Ecology, EarlyView.
Using Structure‐from‐Motion photogrammetry in a longitudinal study, we show that although coral reef habitat complexity had declined significantly by the end of the most prolonged tropical marine heatwave on record, no further losses were detected and 3 years later the reef had begun to recover this critical ecosystem function.
Kevin A. Bruce, John H. R. Burns, Dominique G. Maucieri, Kailey Pascoe, Julia K. Baum   +4 more
wiley   +1 more source

Oxygen as a driver of early arthropod micro-benthos evolution. [PDF]

PLoS ONE, 2011
BACKGROUND: We examine the physiological and lifestyle adaptations which facilitated the emergence of ostracods as the numerically dominant Phanerozoic bivalve arthropod micro-benthos. METHODOLOGY/PRINCIPAL FINDINGS: The PO(2) of modern normoxic seawater
Mark Williams, Jean Vannier, Laure Corbari, Jean-Charles Massabuau   +3 more
doaj   +1 more source

First Insights on Photoreceptor Organ Ultrastructure in Marine Chaetonotida (Gastrotricha): Species of Xenotrichula and Draculiciteria (Xenotrichulidae)

Acta Zoologica, EarlyView.
ABSTRACT Marine gastrotrichs inhabit sediments with limited available light, yet evidence suggests that photoreceptor organs are present throughout the phylum Gastrotricha. Here, we confirm this proposition with ultrastructural descriptions of photoreceptive organs in two species of Xenotrichulidae (Order Chaetonotida) that lack pigmented ocelli ...
Thiago Quintão Araújo, Rick Hochberg
wiley   +1 more source

Benthos-DETR: a high-precision efficient network for benthic organisms detection

Frontiers in Marine Science
The intelligent, automated, and high-precision detection of underwater targets represents a challenging yet pivotal issue in marine science. Enhancing the localization accuracy of marine organisms holds significant importance for marine scientific ...
Weibo Rao, Gang Chen, Yifei Zhang, Jue Cang, Shusen Chen, Chenyang Wang   +5 more
doaj   +1 more source

Dragonfly taxonomic and functional responses to urbanized streams in southeastern Europe, with management recommendations

Insect Conservation and Diversity, EarlyView.
Urbanization drives turnover in dragonfly species composition, traits, and habitat conservation value. Natural stream sections have a higher conservation value (higher DBI) due to presence of specialists. Properly managed urban streams can support diverse dragonfly assemblages.
Marina Vilenica, Andreja Brigić, Lea Ružanović, Renata Matoničkin Kepčija, Greet De Knijf, Michael J. Samways   +5 more
wiley   +1 more source

A Mega-Nourishment (Sand Motor) Affects Landscape Diversity of Subtidal Benthic Fauna

Frontiers in Marine Science, 2021
The Sand Motor is a very large (20 million m3) nourishment constructed along the coast in The Netherlands. The huge volume of sand is redistributed along the coast by natural forces stemming from tidal currents and waves.
Peter M. J. Herman, Peter M. J. Herman, J. J. Simeon Moons, Jeroen W. M. Wijsman, Arjen P. Luijendijk, Arjen P. Luijendijk, Tom Ysebaert, Tom Ysebaert   +7 more
doaj   +1 more source

Divergent exploratory‐avoidant behavioural strategies may drive niche differentiation in juvenile Antarctic fishes

Journal of Fish Biology, EarlyView.
Abstract We used an ecological niche theory framework integrating physiological and behavioural ecology to understand interspecific differentiation of juveniles of four Antarctic fishes: Trematomus bernacchii, Trematomus pennellii, Trematomus nicolai and Pagothenia borchgrevinki.
Amanda J. Frazier, Andrew W. Naslund, Milica Mandic, Kenneth W. Zillig, Bryant C. Siu, Anne E. Todgham   +5 more
wiley   +1 more source

Insights into diet and niche separation in the context of prey availability between two sympatric whiprays in a tropical intertidal estuary

Journal of Fish Biology, EarlyView.
Abstract Increasing evidence supports associations between various elasmobranch species and estuarine habitats, particularly during early life stages. However, with substantial knowledge gaps surrounding spatial habitat use and trophic ecology of estuary‐associated species in Australia, we cannot reliably assess the functional importance of these areas
Jaelen Myers, Marcus Sheaves, Adam Barnett   +2 more
wiley   +1 more source

More often, less each: Averaging can hide opposing trends in prey occurrence and consumer stomach content

Journal of Fish Biology, EarlyView.
Abstract Averages of prey mass in fish stomachs are widely used to track changes in feeding. Yet, a mean over all stomachs is the exact product of two quantities—the frequency of occurrence of a prey and its mean content in the stomachs that contained it—which can move in opposite directions.
S. Neuenfeldt
wiley   +1 more source