Buscar
Mostrando ítems 21-30 de 60
First spatio-temporal study of macroinvertebrates in the Santa Cruz River: a large glacial river about to be dammed without a comprehensive pre-impoundment study
(Springer, 2017-01)
The Santa Cruz River is the last free flowing river in Patagonia Argentina. Two dams are projected and no pre-impoundment study has been undertaken. The present research studies macroinvertebrate communities along three ...
The effects of land use on environmental features and functional organization of macroinvertebrate communities in Patagonian low order streams
(Elsevier Science, 2010-03)
Benthic invertebrates, water quality variables, chlorophyll a and particulate organic matter (POM) were studied in 18 sites of mountain streams in Patagonia (Argentina) subjected to six different land uses: native forest, ...
Choosing best practices for managing impacts of trawl fishing on seabed habitats and biota
(Wiley Blackwell Publishing, Inc, 2020-03)
Bottom trawling accounts for almost one quarter of global fish landings but may also have significant and unwanted impacts on seabed habitats and biota. Management measures and voluntary industry actions can reduce these ...
Assessment of seawater quality and bacteriological pollution of rocky shores in the central coast of San Jorge Gulf (Patagonia, Argentina)
(Pergamon-Elsevier Science Ltd, 2020-01)
We assessed seasonal and spatial variability of seawater quality and bacterial pollution in two sewage-impacted and two reference rocky shores in the area of Comodoro Rivadavia, the largest city in central Patagonia. Samples ...
Feeding behavior of Adelomelon ancilla (Ligfoot, 1786): A predatory neogastropod (Gastropoda: Volutidae) in Patagonian benthic communities
(Bailey-Matthews Shell Museum, 2009-06)
Adelomelon ancilla, a volutid commonly found in shallow water in northern Patagonia, is a top predator in the benthic communities of this region. This species presents an anemone (Antholoba achates) epibiosis that may ...
Rapid sewage pollution assessment by means of the coverage of epilithic taxa in a coastal area in the SW Atlantic
(Elsevier Science, 2018-07)
The sewage pollution impact over coastal environment represents one of the main reasons explaining the deterioration of marine coastal ecosystems around the globe. This paper aims to detect promptly a putative sewage ...
The Importance of Surface Orientation in Biodiversity Monitoring Protocols: The Case of Patagonian Rocky Reefs
(Frontiers Media S.A., 2020-12)
Temperate rocky reefs in Atlantic Patagonia are productive areas that support a high diversity of invertebrates, algae, and fishes. Complex surface structures on rocky reefs offer a range of microhabitats, which in turn, ...
''Dalyellioida'' (Platyhelminthes, Rhabdocoela) from the Río de la Plata estuary in Argentina, with the description of two new species of Gieysztoria
(Magnolia Press, 2008-09)
Two new species of Gieysztoria are described, along with the first record of two species of this genus in Argentina. Gieysztoria atalaya n. sp. has a sclerotic stylet with a window on one of its sides and a belt bearing ...
Umbellula pomona sp. Nov., a new sea pen from mar del plata submarine canyon (cnidaria: Octocorallia: Pennatulacea)
(Museum National d'Histoire Naturelle, 2020-10)
Sea pens (Cnidaria: Anthozoa: Pennatulacea) constitute a distinctive group of colonial marine invertebrates. They inhabit the world`s oceans, from shallow to deep waters. Studies about this group in Argentina are scarce, ...
Trawl fishing impacts on the status of seabed fauna in diverse regions of the globe
(John Wiley & Sons Inc, 2020-08)
Bottom trawl fishing is a controversial activity. It yields about a quarter of the world´s wild seafood, but also has impacts on the marine environment. Recent advances have quantified and improved understanding of large-scale ...