Littérature scientifique sur le sujet « Mesopelagic ecosystems »
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Articles de revues sur le sujet "Mesopelagic ecosystems"
Dornan, Tracey, Sophie Fielding, Ryan A. Saunders et Martin J. Genner. « Swimbladder morphology masks Southern Ocean mesopelagic fish biomass ». Proceedings of the Royal Society B : Biological Sciences 286, no 1903 (29 mai 2019) : 20190353. http://dx.doi.org/10.1098/rspb.2019.0353.
Texte intégralBenoit-Bird, Kelly J., et Whitlow W. L. Au. « Spatial dynamics of a nearshore, micronekton sound-scattering layer ». ICES Journal of Marine Science 60, no 4 (1 janvier 2003) : 899–913. http://dx.doi.org/10.1016/s1054-3139(03)00092-4.
Texte intégralDavison, Peter C., J. Anthony Koslow et Rudy J. Kloser. « Acoustic biomass estimation of mesopelagic fish : backscattering from individuals, populations, and communities ». ICES Journal of Marine Science 72, no 5 (19 février 2015) : 1413–24. http://dx.doi.org/10.1093/icesjms/fsv023.
Texte intégralBelcher, Anna, Kathryn Cook, Daniel Bondyale-Juez, Gabriele Stowasser, Sophie Fielding, Ryan A. Saunders, Daniel J. Mayor et Geraint A. Tarling. « Respiration of mesopelagic fish : a comparison of respiratory electron transport system (ETS) measurements and allometrically calculated rates in the Southern Ocean and Benguela Current ». ICES Journal of Marine Science 77, no 5 (14 mars 2020) : 1672–84. http://dx.doi.org/10.1093/icesjms/fsaa031.
Texte intégralBenoit-Bird, Kelly J., et Margaret A. McManus. « Bottom-up regulation of a pelagic community through spatial aggregations ». Biology Letters 8, no 5 (2 mai 2012) : 813–16. http://dx.doi.org/10.1098/rsbl.2012.0232.
Texte intégralTIERNEY, MEGAN, MARK A. HINDELL et SIMON GOLDSWORTHY. « Energy content of mesopelagic fish from Macquarie Island ». Antarctic Science 14, no 3 (septembre 2002) : 225–30. http://dx.doi.org/10.1017/s0954102002000020.
Texte intégralHalanych, Kenneth, Cameron Ainsworth, Erik Cordes, Richard Dodge, Markus Huettel, Irving Mendelssohn, Steven Murawski et al. « Effects of Petroleum By-Products and Dispersants on Ecosystems ». Oceanography 34, no 1 (1 mars 2021) : 152–63. http://dx.doi.org/10.5670/oceanog.2021.123.
Texte intégralGolikov, Alexey V., Filipe R. Ceia, Hendrik J. T. Hoving, José P. Queirós, Rushan M. Sabirov, Martin E. Blicher, Anna M. Larionova, Wojciech Walkusz, Denis V. Zakharov et José C. Xavier. « Life History of the Arctic Squid Gonatus fabricii (Cephalopoda : Oegopsida) Reconstructed by Analysis of Individual Ontogenetic Stable Isotopic Trajectories ». Animals 12, no 24 (15 décembre 2022) : 3548. http://dx.doi.org/10.3390/ani12243548.
Texte intégralReid, S. B., J. Hirota, R. E. Young et L. E. Hallacher. « Mesopelagic-boundary community in Hawaii : Micronekton at the interface between neritic and oceanic ecosystems ». Marine Biology 109, no 3 (octobre 1991) : 427–40. http://dx.doi.org/10.1007/bf01313508.
Texte intégralAlt, Katharina G., Thomas Kuhn, Julian Münster, Regina Klapper, Judith Kochmann et Sven Klimpel. « Mesopredatory fishes from the subtropical upwelling region off NW-Africa characterised by their parasite fauna ». PeerJ 6 (8 août 2018) : e5339. http://dx.doi.org/10.7717/peerj.5339.
Texte intégralThèses sur le sujet "Mesopelagic ecosystems"
Valls, Mir Maria. « Trophic Ecology in Marine Ecosystems from the Balearic Sea (Western Mediterraniean) ». Doctoral thesis, Universitat de les Illes Balears, 2017. http://hdl.handle.net/10803/461496.
Texte intégralWoodstock, Matthew. « Trophic Ecology and Parasitism of a Mesopelagic Fish Assemblage ». Thesis, NSUWorks, 2018. https://nsuworks.nova.edu/occ_stuetd/469.
Texte intégralIzard, Lloyd. « Structuration spatiale et variabilité des écosystèmes mésopélagiques dans l'Océan Indien Sud ». Electronic Thesis or Diss., Sorbonne université, 2023. http://www.theses.fr/2023SORUS621.
Texte intégralThe Southern Indian Ocean hosts diverse oceanic environments, pelagic communities, and predator populations that have recently led to the establishment of conservation areas and UNESCO World Heritage recognition. However, predator populations in this region have displayed signs of decline, likely attributed to the impacts of climate change and prey dynamics. These prey populations consist predominantly of zooplankton and micronekton, playing a crucial role in marine ecosystems by influencing biogeochemical cycles and the transfer of energy and biomass along the trophic web. Nevertheless, the study of their structuring is intricate due to their deep distribution in the mesopelagic zone (200-1000 m) and their daily vertical migrations, making it one of the least explored areas on a global scale. In this thesis, we employ active acoustics, which provides high spatial and vertical resolution for tracking these organisms, to investigate the structuring of mesopelagic ecosystems in two contrasting oceanic systems. We initially examined their responses in a transition zone between these oceans, within the Saint-Paul and Amsterdam Islands region. Our findings indicate that nycthemeral migrations are the primary factor vertically structuring pelagic organisms, even within a pronounced transition zone. Three spatially coherent regions were identified, sharing common environmental and acoustic features. Observations at 38 kHz (commonly used in hydroacoustics) confirmed increased biological activity in the subtropical zone and a minimum in the subantarctic zone. However, our analyses also reveal a distinct acoustic response based on the acoustic frequency considered, in terms of vertical structuring and integrated biomass. Additionally, the low levels measured in the Southern Ocean appear inconsistent with the high biomasses consumed by the large marine predator populations in this region. These observations highlight an acoustic resonance issue in the study of these organisms. To investigate this phenomenon, our second study focused on the structuring of communities at a regional scale, proposing a two-frequency acoustic landscape classification, both probing depths of up to 1000 m. Four spatially coherent regions were identified based on the combination of vertical structuring at the two considered frequencies. The results of this study reveal a shift in the dominance of acoustic responses between 38 and 18 kHz at the subantarctic front, supporting the hypothesis of a community change at these latitudes and raising questions regarding the use of 38 kHz as a descriptor for mesopelagic communities. Given the complexity of acoustic data (potentially multivariate, with distinct vertical ranges, and four-dimensional), the work presented in this thesis also contributed to the development of functional analysis methods to reconcile the horizontal, vertical, and temporal variability of these ecosystems. As marine ecosystem management requires an understanding of the dynamics of these systems and the structuring of the communities within them, our work has also had implications in marine conservation. At the national level, it contributed to the extension of the Saint-Paul and Amsterdam Islands Nature Reserve, and at the international level, it contributed to the ecoregionalization of the pelagic zone in the subtropical and subantarctic region of the South Indian Ocean
Receveur, Aurore. « Ecologie spatiale du micronecton : distribution, diversité et importance dans la structuration de l'écosystème pélagique du Pacifique sud-ouest ». Thesis, Aix-Marseille, 2019. http://www.theses.fr/2019AIXM0401.
Texte intégralThe New Caledonian pelagic ecosystem in the southwest Pacific contains a high diversity of predators, such as seabirds and cetaceans. The recent creation of the Natural Park of the Coral Sea created a need for solid information on the functioning of this remarkable ecosystem, particularly on the dynamics of the micronecton (organisms between 1 and 20 cm constituting food of top predators) and its central role in food webs, especially since is the most poorly understood. In this context, this PhD showed a strong influence of environment on its spatial and seasonal distribution with on average more micronekton in the south than in the north, and more in winter than in summer. The species composing the micronecton are riche in crustaceans in the north and in cephalopods and fish in the south. The micronecton abundance would tend to decrease under the influence of climate change. Finally, we showed that the spatial distribution of this group influenced the presence of six groups of predators: yellowfin tuna, albacore tuna, dolphin, dolphin, shearwater and red-footed body
Woods, BL. « Understanding the energy pathways through Southern Ocean mesopelagic communities ». Thesis, 2022. https://eprints.utas.edu.au/47527/.
Texte intégralChapitres de livres sur le sujet "Mesopelagic ecosystems"
Granata, A., G. Brancato, O. Sidoti et L. Guglielmo. « Energy Flux in the South Tyrrhenian Deep-sea Ecosystem : Role of Mesopelagic Fishes and Squids ». Dans Mediterranean Ecosystems, 197–207. Milano : Springer Milan, 2001. http://dx.doi.org/10.1007/978-88-470-2105-1_25.
Texte intégralArístegui, Javier, Susana Agustí, Jack J. Middelburg et Carlos M. Duarte. « Respiration in the mesopelagic and bathypelagic zones of the oceans ». Dans Respiration in Aquatic Ecosystems, 181–205. Oxford University Press, 2005. http://dx.doi.org/10.1093/acprof:oso/9780198527084.003.0010.
Texte intégralEl-Sayed Ali, Tamer. « The Challenge of Microplastics in Aquatic Ecosystem : A Review of Current Consensus and Future Trends of the Effect on the Fish ». Dans Environmental Pollutants in the Mediterranean Sea : Recent Trends and Remediation Approaches, 54–67. BENTHAM SCIENCE PUBLISHERS, 2023. http://dx.doi.org/10.2174/9789815179064123010005.
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