Results 31 to 40 of about 4,776 (172)
Luz difusa en cúmulos y grupos de galaxias [PDF]
, 2009 La luz difusa está compuesta por estrellas desligadas de las galaxias del cúmulo y que se mueven bajo la acción del potencial global del cúmulo. Esta componente cúmular corresponde a un 5-15% de la masa total del cúmulo.
Castro Rodríguez, Nieves D.
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Journal of Fish Biology, EarlyView.Abstract Rivers and streams exhibit inherent variability in environmental conditions, particularly in water temperature and stream discharge. These factors can impact fish growth through both direct (i.e., physiological) and indirect (i.e., ecosystem productivity) mechanisms.
Patricia Y. Koh +3 more
wiley +1 more source
Cúmulos de galaxias : propiedades de galaxias y subsistemas [PDF]
, 2008 Tesis (Doctor en Astronomía)--Unviersidad Nacional de Córdoba. Facultad de Matemática, Astronomía y Física, 2008.En la presente tesis se llevó a cabo un estudio estadístico sobre la dependencia de las propiedades de las galaxias brillantes y sus ...
Coenda, Valeria
core +1 more source
Restoring giant kokopu (Galaxias argenteus) populations in Hamilton's urban streams [PDF]
, 2008 In this study, options for restoring fish populations in Hamilton City (37.47'S, 175.19'E) were explored. Habitat and fish populations in Hamilton urban streams were manipulated using a two-fold experimental design. Firstly, habitat was enhanced in ten
Aldridge, Brenda Michelle Te Aroha
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Formación y evolución de galaxias lenticulares: diferencias respecto a los caminos evolutivos de galaxias con estructura espiral [PDF]
, 2023 Las galaxias llamadas lenticulares se encuentran en diversos ambientes en el Universo y son abundantes entre las galaxias de disco. A partir de su descubrimiento, llamaron el interés tanto de astrónomos observacionales como teóricos del campo de la ...
Crisci, Elio Oscar
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New Zealand Journal of Marine and Freshwater Research, Volume 60, Issue 3, September 2026.The role of river size on fish communities remains underexplored in freshwater ecology. Small streams, despite accounting for 75% of stream length, are more vulnerable to human impacts and often lack legislative protection. Nevertheless, they can serve as refuges and rearing areas for fish, including rare or threatened species.
Lovisa Genevieve Ekelund +4 more
wiley +1 more source
Além das galáxias brilhantes: a descoberta da matéria escura e o papel de Vera Rubin [PDF]
Revista Brasileira de Ensino de FísicaDesde a década de 1930 os cientistas enfrentavam dificuldades para calcular a massa de aglomerados de galáxias a partir da luminosidade, pois os efeitos gravitacionais observados não correspondiam à soma das massas visíveis.
Julia Medeiros, Gabriela Kaiana Ferreira
doaj +1 more source
Landscape and Hydro‐Climatic Drivers of Fish Communities in Floodplain Wetlands
Freshwater Biology, Volume 71, Issue 8, August 2026.ABSTRACT Floodplain wetlands are characterised by dynamic hydrological regimes and seasonal patterns of wetting and drying. They support distinct communities of fish, many of which are adapted to dynamic and variable conditions. Seasonal hydrological variation and the degree of water permanence influence physicochemical conditions and local habitat ...
Saúl González‐Murcia +5 more
wiley +1 more source
Effects of introduced trout predation on non-diadromous galaxiid fish populations across invaded riverscapes [PDF]
, 2013 We assessed the landscape-scale effect of predation pressure from trout on the population integrity and distributions of non-diadromous galaxiids in high-country streams of the South Island, New Zealand.
Darragh J. Woodford, Angus R. McIntosh
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Catch Me If You Can: Assessing Sampling Techniques for Threatened Floodplain Wetland Fish
Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 7, July 2026.ABSTRACT Floodplain wetlands are declining globally in extent and ecological condition. Changing climates, increasing agricultural activity and invasive species are among the key threats contributing to biodiversity loss, with native fish species increasingly in decline and listed as threatened or endangered. Floodplain wetlands present unique sampling
Samuel Lewis +10 more
wiley +1 more source