Results 71 to 80 of about 35,826 (286)

A global estimator of C and N isotope baselines for fresh waters

Methods in Ecology and Evolution, EarlyView.
Abstract Baselines are the pebbles in the shoes of isotope ecologists. The extreme variability of the isotope composition of resources at the base of food webs governs the spatial differences of consumers' isotope composition, so that isotope‐inferred trophic properties can be compared across ecosystems only after correction for baseline effects ...
Marie‐Elodie Perga, Stéphanie Bouletreau, Julien Cucherousset, Chris Harrod, Angus McIntosh, Julian D. Olden, Chloé Vagnon, Tim Jardine   +7 more
wiley   +1 more source

Challenges of Monitoring Endangered Bryde's Whales During a Period of Rapid Environmental Change

Animal Conservation, EarlyView.
Estimating population size is challenging for rare and elusive species that occur at low densities and are difficult to detect during sampling. We estimated the abundance of a Nationally critical whale species—Aotearoa New Zealand Bryde's whales—using a custom‐formulated POPAN model which incorporated transience to account for their complex residency ...
A. S. Cranswick, R. M. Fewster, T. Brough, S. L. Dwyer, C. Lea, S. Tranmer, J. R. Zaeschmar, R. Constantine   +7 more
wiley   +1 more source

No escape from microplastics: Contamination of reef manta ray feeding areas in a remote, protected archipelago

Conservation Science and Practice, EarlyView.
We found microplastic contamination of the upper water column around the Chagos Archipelago, a remote, protected archipelago in the central Indian Ocean. Key aggregation areas for reef manta rays (Mobula alfredi) were contaminated, putting them at risk of microplastic ingestion.
J. Savage, J. L. Harris, H. J. Koldewey, T. B. Letessier, M. Rowcliffe, D. Morritt   +5 more
wiley   +1 more source

Century‐Scale Changes in the Feeding Patterns of Demersal Fish Species in the Western North Sea

Fish and Fisheries, EarlyView.
ABSTRACT Understanding the extent and magnitude of change in marine food webs requires historical data that predates modern monitoring efforts. Such information can provide invaluable insights into the longer‐term impacts of altered trophic interactions, yet it is rarely incorporated into marine policy frameworks.
Georgina L. Hunt, Nicholas V. C. Polunin, Georg H. Engelhard, Ben D. Wigham, John K. Pinnegar   +4 more
wiley   +1 more source

Zooplankton of lakes Borodaevskoe and Ferapontovskoe (Russky Sever (Russian North) National Park)

Трансформация экосистем
The zooplankton of the lakes Borodaevskoe and Ferapontovskoe (Russky Sever (Russian North) National Park) has been studied in 1975, 2008, and 2021. The zooplankton composition is similar in the lakes.
E. V. Lobunicheva, A. I. Litvin, N. V. Dumnich   +2 more
doaj   +1 more source

Effect of suspended solids on interaction between filter-feeding fish Aristichthys nobilis and zooplankton in a shallow lake using a mesocosm experiment

Journal of Freshwater Ecology, 2017
Suspended solids (SS) resulting from sediment resuspension (SR) can impact ecosystems through direct and indirect effects on freshwater organisms and their interactions.
Meijun Chen, Feizhou Chen
doaj   +1 more source

Impact of seasonal changes in zooplankton biodiversity in Ukkadam Lake, Coimbatore, Tamil Nadu, India, and potential future implications of climate change

Journal of Basic and Applied Zoology, 2018
Background Zooplankton biodiversity serves as an ecological indicator of aquatic environment due to their rapid response according to environmental changes. At the present study, impact of seasonal changes on zooplankton biodiversity was conducted in the
Narasimman Manickam, Periyakali Saravana Bhavan, Perumal Santhanam, Rajagopal Bhuvaneswari, Thirunavukkarasu Muralisankar, Veeran Srinivasan, Annamalai Asaikkutti, Gopalan Rajkumar, Rajendaran Udayasuriyan, Madhayan Karthik   +9 more
doaj   +1 more source

Contemporary Methods for Capturing Juvenile Salmonids in the Marine Environment

Fish and Fisheries, EarlyView.
ABSTRACT Anadromous salmonids play vital roles in marine and freshwater ecosystems. The most abundant of these fishes—Pacific salmon (Oncorhynchus spp.)—are integral to coastal ecosystems and communities across the North Pacific Rim, but numerous populations are experiencing dramatic declines, particularly towards the south of their range.
Sean C. Godwin, Emma M. Atkinson, Jamieson B. Atkinson, Mackenzie C. Bartlett, William D. P. Duguid, Marc Trudel, Andrew W. Bateman   +6 more
wiley   +1 more source

The Gulf of Naples as a model system for plankton ecology studies

, 2023
Marine Ecology, EarlyView.
Adriana Zingone, Domenico D'Alelio, Maria Grazia Mazzocchi   +2 more
wiley   +1 more source

Body Condition as a Shared Response to Environment in a Commercially Important Demersal Fish Assemblage

Fish and Fisheries, EarlyView.
ABSTRACT Measures of an organism's weight at a given length are often considered reliable indicators of energy reserves or ‘condition’, which can be related to fecundity and risk of mortality. Understanding the impact of environmental change on fish condition may therefore inform sustainable management of human activities in marine ecosystems.
Philina A. English, Sean C. Anderson, Robyn E. Forrest   +2 more
wiley   +1 more source