Results 91 to 100 of about 3,111 (189)

Management of Lagarosiphon major (ridley) moss in lough corrib-a review [PDF]

open access: yes
Lagarosiphon major is a priority invasive species first recorded in a natural Irish watercourse, Lough Corrib, in April 2005. The weed has subsequently expanded its range significantly within the upper and middle lake but, as of 2010, has not been ...
Caffrey, J   +3 more
core   +1 more source

Egeria densa Planchon (Hydrocharitaceae) en la provincia de Pontevedra (España).

open access: yesActa Botanica Malacitana, 2005
New spanish records for Egeria densa Planchon (Hydrocharitaceae) in Pontevedra (Spain)Palabras clave. Flora adventicia, Groenlandia, neofitos, plantas invasoras.Key words. Alien flora, Groenlandia, invasive plants, neophytes.
Íñigo Pulgar, Jesús Izco
openaire   +2 more sources

Aquatic macrophytes of Itaipu Reservoir, Brazil: survey of species and ecological considerations

open access: yesBrazilian Archives of Biology and Technology, 1999
In a survey of the aquatic macrophytes of the Itaipu Reservoir, we identified 62 taxa in 25 families and 42 genera. The highest number taxa was observed for the emergent macrophytes (40 taxa).
Sidinei Magela Thomaz   +4 more
doaj   +1 more source

Deskstudie biologische bestrijding van invasieve exotische oever- en wateronkruiden in Nederland [PDF]

open access: yes
In dit rapport wordt een overzicht gegeven van biologische onkruidbestrijding in het algemeen, en ontwikkelingen op het gebied van biologische bestrijding van elf belangrijke exotische oever- en wateronkruiden in Nederland in het bijzonder.
Franke, A.C.   +2 more
core   +3 more sources

Respostas fisiológicas da tilápia-do-nilo e variáveis limnológicas após decomposição de macrófitas utilizando herbicida

open access: yesBoletim do Instituto de Pesca, 2017
As macrófitas são importantes na biocenose aquática, porém, em certas condições, sua população aumenta, tornando-se um problema, como é o caso de Egeria densa.
Daniela Takahashi NOMURA   +5 more
doaj   +1 more source

Estudios evolutivos en el Orden Alismatales: datación de la filogenia y evolución morfológica [PDF]

open access: yes, 2015
[Resumo] A Orde Alismatales estivo suxeita a numerosos estudos que pretendían esclarecer a súa filoxenia. Aínda así, as relacións evolutivas entre as familias que a compoñen non deixan de ser incertas.
Penas Tizón, Natalia
core  

The Aquatic Trophic Ecology of Suisun Marsh, San Francisco Estuary, California, During Autumn in a Wet Year [PDF]

open access: yes, 2015
Using stable isotopes of carbon (δ13C) and nitrogen (δ15N) and mixing models, we investigated the trophic levels and carbon sources of invertebrates and fishes of a large tidal marsh in the San Francisco Estuary.
Moyle, Peter B.   +3 more
core   +1 more source

Wild record of an apple snail in the Waikato River, Hamilton, New Zealand and their incidence in freshwater aquaria [PDF]

open access: yes, 2011
We report the discovery of a single specimen of a live apple snail Pomacea diffusa Blume 1957 (Ampullariidae: Prosobranchia), from the Waikato River, Hamilton city, central North Island, New Zealand. This species, along with the congeneric P.
Collier, Kevin J.   +3 more
core   +2 more sources

Assessing Fe and Zn content in Egeria densa: Sample treatment influences significantly the quantification of metals in Egeria densa

open access: yes
Abstract Wetlands are fragile ecosystems that support diverse habitats and are under constant environmental pressure. The "Carlos Anwandter" Ramsar Site located in Valdivia, Chile, is home to many waterfowl species, and it is the main reproductive site for black-necked swan in the world. The main food source for these
Claudio Bravo-Linares   +6 more
openaire   +1 more source

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