Results 91 to 100 of about 1,208,900 (175)

Lack of Compliance in Gillnet Fisheries Regulations Increases Risk to a Vulnerable Species

open access: yesFisheries Management and Ecology, Volume 33, Issue 5, Page 933-948, October 2026.
ABSTRACT This article presents an analysis of regulatory compliance in a Brazilian gillnet fishery, based on Vessel Monitoring System (VMS) tracking data. Satellite transmissions records, interpreted as proxies for gillnet haulings events, were analyzed and classified using a neural network to assess the level of compliance of the gillnet fleet.
Rodrigo Claudino dos Santos   +3 more
wiley   +1 more source

Comparing Drone and Vessel‐Based Imaging to Quantify Epibiont Coverage on Humpback Whales

open access: yesMarine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT Cetacean epibionts offer noninvasive insights into host health, physiology, and spatial ecology, yet quantitative assessments in wild populations remain scarce. Although vessel‐based observations may be limited by field of view and analyst input, unoccupied aerial vehicles (UAVs; drones) are increasingly used to monitor cetacean health indices,
Isabel A. R. Taylor   +5 more
wiley   +1 more source

The importance of sample size in marine megafauna tagging studies [PDF]

open access: yes, 2019
Telemetry is a key, widely used tool to understand marine megafauna distribution, habitat use, behavior, and physiology; however, a critical question remains: “How many animals should be tracked to acquire meaningful data sets?” This question has wide ...
Heupel, M   +9 more
core   +2 more sources

Marine Institute's Monitoring Programme for Veterinary Residues & Environmental Contaminants in Farmed Finfish

open access: yes, 2006
European Union Directive 96/23 of the 29th April 1996 requires member states to monitor certain substances and residues thereof in live animals and animal products in EU member countries.
Marine Institute
core   +1 more source

Behavioral Response of Arctocephalus australis to Pedestrian Disturbance During the Breeding Season: Implications for Wildlife Tourism Management

open access: yesMarine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT The South American fur seal (Arctocephalus australis) breeds in dense colonies along the Peruvian coast, mostly within protected areas managed by the Servicio Nacional de Áreas Naturales Protegidas por el Estado (SERNANP). To support responsible wildlife tourism near breeding sites, we evaluated the behavioral responses to controlled ...
Maite Arangüena‐Proaño   +2 more
wiley   +1 more source

Bayesian Estimation of Individual Gray Whale Space Use Reveals Differential Exposure to Stressors

open access: yesEcology and Evolution
This study quantifies the individual space use patterns of Pacific Coast Feeding Group gray whales (Eschrichtius robustus) from photographic capture‐recapture data, collected in central Oregon, U.S.A., within a Bayesian framework.
Lisa Hildebrand   +10 more
doaj   +1 more source

A 14-year time series of marine megafauna bycatch in the Italian midwater pair trawl fishery. [PDF]

open access: yesSci Data, 2022
Bonanomi S   +4 more
europepmc   +1 more source

Linking the Movement Behavior of the Laptev Sea Walrus to Sea Ice and Resource Dynamics

open access: yesMarine Mammal Science, Volume 42, Issue 4, October 2026.
ABSTRACT The walrus subspecies inhabiting the Laptev Sea (Odobenus rosmarus divergens) remains one of the least studied walrus taxa and occurs in a region undergoing rapid environmental change driven by climate warming and increasing human activity. We conducted the first satellite telemetry study of walruses in this region, tracking 14 individuals ...
Varvara Levitskaya   +4 more
wiley   +1 more source

The Utility of Combining Stable Isotope and Hormone Analyses for Marine Megafauna Research

open access: yesFrontiers in Marine Science, 2018
Stable isotope and hormone analyses offer insight into the health, stress, nutrition, movements, and reproduction of individuals and populations. Such information can provide early warning signs or more in-depth details on the ecological and conservation
Alyson H. Fleming   +4 more
doaj   +1 more source

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