Results 111 to 120 of about 8,467 (257)

A STUDY OF RADIOACTIVE CONTAMINATION OF MARINE BIOTA AFTER THE FUKUSHIMA ACCIDENT

Радиационная гигиена, 2015
134Cs and 137Cs contents have been studied in 44 samples of the marine biota including four species of brown and red algae (11 samples), four species of invertebrates (8 samples) and ten species of fish (25 samples).
V. P. Ramzaev, S. A. Ivanov, Yu. N. Goncharova, N. M. Vishnyakova, A. V. Sevastyanov   +4 more
doaj  

Adding labile carbon to peatland soils triggers deep carbon breakdown

Communications Earth & Environment
Peatlands store vast amounts of carbon, with deep peat carbon remaining stable due to limited thermodynamic energy and transport. However, climate change-induced increases in labile carbon inputs could destabilize these stores.
Sumudu Rajakaruna, Ghiwa Makke, Nathalia Graf Grachet, Christian Ayala-Ortiz, John Bouranis, David W. Hoyt, Jason Toyoda, Elizabeth H. Denis, James J. Moran, Tianze Song, Xiaoxu Sun, Elizabeth K. Eder, Allison R. Wong, Rosalie Chu, Heino Heyman, Max Kolton, Jeffrey P. Chanton, Rachel M. Wilson, Joel Kostka, Malak M. Tfaily   +19 more
doaj   +1 more source

Contrasting Food Web Dynamics Across Oceanographic Boundaries in Subarctic Pelagic Ecosystems

Fisheries Oceanography, EarlyView.
ABSTRACT Understanding the structure of pelagic food webs across multiple trophic levels is critical for elucidating species interactions, energy flow, and anthropogenic impacts on production. This study presents a comprehensive analysis of the eastern North Pacific pelagic food webs, focusing on the Gulf of Alaska (GoA) during late winter of 2019.
Genyffer C. Troina, Evgeny A. Pakhomov, Laurie Weitkamp, Brian P. V. Hunt   +3 more
wiley   +1 more source

Cultivation of deep-sea bacteria from the Northwest Pacific Ocean and characterization of Limnobacter profundi sp. nov., a phenol-degrading bacterium

Frontiers in Marine Science
Despite previous culture-independent studies highlighting the prevalence of the order Burkholderiales in deep-sea environments, the cultivation and characterization of deep-sea Burkholderiales have been infrequent.
Mirae Kim, Jaeho Song, Seung Yeol Shin, Kazuhiro Kogure, Ilnam Kang, Jang-Cheon Cho   +5 more
doaj   +1 more source

Impact of River Morphology on River–Groundwater Exchange in Braided River Systems

Groundwater, EarlyView.
Abstract Braided river systems are an important source for groundwater recharge, but their complex morphology makes river–groundwater exchange fluxes difficult to estimate. Their river channel morphology changes frequently after floods, which has effects on recharge rates that have rarely been studied in the past.
Moritz Kraft, Antoine Di Ciacca, Thomas Wöhling   +2 more
wiley   +1 more source

Counter‐factual simulation highlights requirements for additional management to avert extinction of a relict Tītī/Sooty Shearwater population

Ibis, EarlyView.
Seabirds play key ecological roles but face increasing threats worldwide. Among them, Tītī (Sooty Shearwater) Ardenna grisea are among the most abundant and culturally significant species in the Southern Hemisphere but are also threatened. Kapiti Island, Aotearoa (New Zealand), holds a Tītī colony which, despite eradication of non‐native mammalian ...
Etienne Ossona De Mendez, Brendon J. Dunphy, Kristal E. Cain, Johannes Chambon, Reg Cotter, Elisabeth Daigle, Graeme A. Taylor, Johannes H. Fischer   +7 more
wiley   +1 more source

Wood Thrush (Hylocichla mustelina) occupancy patterns reveal sensitivity to low precipitation on nonbreeding grounds in northern Costa Rica

Ibis, EarlyView.
Climatic change and anthropogenic disturbances are reshaping animal populations. Habitat loss and extreme climatic events are particularly strong drivers of declines in species that depend on forested areas. For migratory songbirds, climate and the persistence of suitable habitat over time are fundamental to sustaining populations annually.
Isabel Vargas‐Valverde, Natalie V. Sánchez, Manuel Spínola, Gerardo Avalos   +3 more
wiley   +1 more source

The former distribution of White‐tailed Eagles in Iberia, the Mediterranean and the Middle East: a case study of the importance of understanding historical distribution in informing current conservation and restoration interventions

Ibis, EarlyView.
The importance of considering historical data in developing conservation and restoration measures for individual species and for wider ecological restoration has been pointed out by recent reviews but often remains neglected in practice. This paper provides a case study illustrating the issue through a review of the former breeding distribution of the ...
Duncan J. Halley
wiley   +1 more source

Polar cod Boreogadus saida occurrence is driven by temperature at the margin of its distribution

Journal of Fish Biology, EarlyView.
Abstract With a warming Arctic, suitable habitat for polar cod Boreogadus saida (Lepechin 1774) is predicted to decrease. We investigated the changes in distribution of polar cod on the southern limit of its distribution in the Atlantic Ocean (around Iceland) during both autumn and spring after a recent period of warming in the area.
James Kennedy, Christophe Pampoulie
wiley   +1 more source

Historical case study of a transfer experiment that demonstrated the importance of the estuarine ecosystem for the survival of Chinook salmon (Oncorhynchus tshawytscha) at the Campbell River estuary, British Columbia, Canada

Journal of Fish Biology, EarlyView.
Abstract Estuary dependence to the survival of Chinook salmon was investigated at the Campbell River estuary, British Columbia, Canada. Replicate batches of marked smolts were transferred from a hatchery and released in 1983, 1984 and 1985 at four ecosystems, two that ensured estuarine experience (river, estuary) and two seawards of the estuary ...
Colin D. Levings, J. Steve Macdonald
wiley   +1 more source