Idioma:

Acoustic observation of living organisms reveals the upper limit of the oxygen minimum zone

Bertrand, Arnaud ; Ballón, Michael ; Chaigneau, Alexis Bograd, Steven J.

PloS one, 2010-04, Vol.5 (4), p.e10330 [Periódico revisado por pares]

United States: Public Library of Science

Texto completo disponível

Citações Citado por

Enviar para

Título:
Acoustic observation of living organisms reveals the upper limit of the oxygen minimum zone
Autor: Bertrand, Arnaud ; Ballón, Michael ; Chaigneau, Alexis
Bograd, Steven J.
Assuntos: Acoustics ; Algorithms ; Animals ; Anthropogenic factors ; Aquatic habitats ; Climate Change ; Climate change influences ; Climatic change influences ; Earth Sciences ; Echo sounding ; Echosounders ; Ecological monitoring ; Ecology/Ecosystem Ecology ; Ecology/Marine and Freshwater Ecology ; Ecology/Spatial and Landscape Ecology ; Ecosystem ; Ecosystem management ; Eddies ; Engraulis ringens ; Environmental changes ; Environmental Monitoring - methods ; Filaments ; Fish ; Fisheries ; Fisheries management ; Fishery management ; Fishes ; Global temperature changes ; High resolution ; Human influences ; Marine and Aquatic Sciences/Biogeochemistry ; Marine and Aquatic Sciences/Biological Oceanography ; Marine and Aquatic Sciences/Chemical Oceanography ; Marine and Aquatic Sciences/Climate Change ; Marine and Aquatic Sciences/Ecology ; Marine and Aquatic Sciences/Fisheries ; Marine and Aquatic Sciences/Physical Oceanography ; Marine Biology ; Marine ecology ; Marine ecosystems ; Marine organisms ; Oceanography ; Oceans ; Oceans and Seas ; Organisms ; Oxygen ; Oxygen - analysis ; Sampling ; Sampling techniques ; Sciences of the Universe ; Spatial resolution ; Time series ; Underwater ; Underwater acoustics ; Upper ocean ; Vertical distribution ; Vortices ; Wavelet transforms
É parte de: PloS one, 2010-04, Vol.5 (4), p.e10330
Notas: Conceived and designed the experiments: AB. Performed the experiments: AB MB AC. Analyzed the data: AB MB AC. Contributed reagents/materials/analysis tools: MB. Wrote the paper: AB MB AC.
Descrição: Oxygen minimum zones (OMZs) are expanding in the World Ocean as a result of climate change and direct anthropogenic influence. OMZ expansion greatly affects biogeochemical processes and marine life, especially by constraining the vertical habitat of most marine organisms. Currently, monitoring the variability of the upper limit of the OMZs relies on time intensive sampling protocols, causing poor spatial resolution. Using routine underwater acoustic observations of the vertical distribution of marine organisms, we propose a new method that allows determination of the upper limit of the OMZ with a high precision. Applied in the eastern South-Pacific, this original sampling technique provides high-resolution information on the depth of the upper OMZ allowing documentation of mesoscale and submesoscale features (e.g., eddies and filaments) that structure the upper ocean and the marine ecosystems. We also use this information to estimate the habitable volume for the world's most exploited fish, the Peruvian anchovy (Engraulis ringens). This opportunistic method could be implemented on any vessel geared with multi-frequency echosounders to perform comprehensive high-resolution monitoring of the upper limit of the OMZ. Our approach is a novel way of studying the impact of physical processes on marine life and extracting valid information about the pelagic habitat and its spatial structure, a crucial aspect of Ecosystem-based Fisheries Management in the current context of climate change.
Editor: United States: Public Library of Science
Idioma: Inglês

Links

Voltar para lista de resultados

Anterior Resultado 6 Avançar Ir para próxima página

Realização: Logos de Redes Sociais:

Acoustic observation of living organisms reveals the upper limit of the oxygen minimum zone

Bertrand, Arnaud ; Ballón, Michael ; Chaigneau, Alexis Bograd, Steven J.

United States: Public Library of Science

Buscando em bases de dados remotas. Favor aguardar.