Results 81 to 90 of about 3,728 (226)

Stable Isotope–Enabled Particle Drift Models Predict Where High‐Resolution Isotope Analyses Can Discriminate Among Larval Trajectories in Atlantic Mackerel

open access: yesFisheries Oceanography, EarlyView.
ABSTRACT Marine fish commonly move across distinct habitats throughout their lifetimes, particularly during larval stages, when they are particularly difficult to track. Such transitions are necessary as environmental demands and predation pressures change dramatically with increases in body size.
Yuan Tian Chou   +3 more
wiley   +1 more source

The influence of sea ice, wind speed and marine mammals on Southern Ocean ambient sound [PDF]

open access: yesRoyal Society Open Science, 2017
This paper describes the natural variability of ambient sound in the Southern Ocean, an acoustically pristine marine mammal habitat. Over a 3-year period, two autonomous recorders were moored along the Greenwich meridian to collect underwater passive ...
Sebastian Menze   +3 more
doaj   +1 more source

Individual variability in activity patterns in Atlantic halibut (Hippoglossus hippoglossus) revealed using pop‐up satellite tags

open access: yesJournal of Fish Biology, EarlyView.
Abstract Understanding fish behaviour and activity patterns is essential for interpreting their ecology and the processes that shape population dynamics, yet such information remains limited for wild fishes because observing individuals in situ is challenging.
Marie‐Pier Boulanger   +4 more
wiley   +1 more source

Vertical migration in Chaoborus flavicans in the absence and presence of diel light cycles. [PDF]

open access: yes, 1993
Diel vertical migration in zooplankton communities has been extensively studied for well over a century, yet factors affecting this phenomenon are not well understood. Light as a cue for vertical migration in the dipteran Chaoborus flavicans was examined
Lim, Indra
core  

Uncovering intra-daily intertidal biofilm dynamics in a shorebird foraging hotspot with hourly UAV multispectral imagery acquisitions

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Estuarine mudflats are colonized by biofilm-forming microphytobenthos (MPB), which support primary production, stabilize sediment, and provide critical food for benthic invertebrates and shorebirds.
Tristan J. Douglas   +5 more
doaj   +1 more source

Diel vertical migration of zooplankton in the Northeast Atlantic [PDF]

open access: yesJournal of Plankton Research, 1996
Acoustic Doppler current profiler (ADCP) data collected during August-September 1991 reveal the diel migration of zooplankton in the northeast Atlantic (50-60°N, 10-40°W). Volume scattering strength has been calculated, from which the speed and depth of migrations have been stud- ied. There are usually at least two layers displaying nocturnal migration,
openaire   +2 more sources

The state of knowledge on four families of Syngnathoidei fishes (Teleostei: Syngnathiformes): Aulostomidae, Centriscidae, Fistulariidae and Solenostomidae

open access: yesJournal of Fish Biology, EarlyView.
Abstract Knowledge on the ecology and life‐history traits of coastal marine species is vital to inform their conservation and management, especially as their coastal habitats come under increasing threats. However, such data have never been collated for four of the five families in the suborder Syngnathoidei—the close relatives of the better‐studied ...
Syd J. Ascione   +3 more
wiley   +1 more source

Following a foraging fish-finder : diel habitat use of Blainville's beaked whales revealed by echolocation [PDF]

open access: yes, 2011
© The Author(s), 2011. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in PLoS One 6 (2011): e28353, doi:10.1371/journal.pone.0028353.Simultaneous high resolution sampling of ...
Fernando Bordes   +19 more
core   +1 more source

The impact of isosmotic conditions on the metabolism and hypoxia tolerance of a reportedly oxyconforming teleost

open access: yesJournal of Fish Biology, EarlyView.
Abstract Fish must manage the competing demands of ion balance and gas exchange across the gills – a physiological tension known as the osmorespiratory compromise. In dynamic estuarine environments, the osmorespiratory compromise may be exacerbated by variable salinity and periods of hypoxia that demand high respiratory work.
Timothy D. Clark   +4 more
wiley   +1 more source

Prospects of multipurpose biomonitoring for fisheries assessment based on environmental nucleic acids

open access: yesJournal of Fish Biology, EarlyView.
Abstract Methods using environmental nucleic acids have become highly effective for monitoring aquatic biodiversity, with an array of suitable use cases, including metrics for fisheries assessment. Traditional methods for assessing fish populations often rely on invasive techniques with limited spatial and temporal coverage.
Ana Ramón‐Laca   +6 more
wiley   +1 more source

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