Results 91 to 100 of about 3,148 (190)

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

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

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

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

Estudo da estrutura populacional e caracterização do habitat de Procambarus clarkii (lagostim vermelho) na Lagoa das Sete Cidades e na Lagoa do Peixe (São Miguel, Açores) [PDF]

open access: yes, 2005
Relatório final de Estágio da Licenciatura em Biologia, ramo Ambiental e Evolução, 2005, Universidade dos Açores.A Procambarus clarkii (Girard, 1982) é uma espécie de crustáceo do sul dos Estados Unidos da América e do noroeste do México e foi ...
Costa, Ana Cristina de Matos Ricardo, orientadora   +1 more
core  

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

Ecology of the non-native snail Sinotaia cf quadrata (Caenogastropoda: Viviparidae). A study in a lowland stream of South America with different water qualities [PDF]

open access: yes, 2017
Sinotaia quadrata is a snail native from Asia recorded for the first time in South America in 2009 in central Argentina. In 2015, this species was also found in a lowland stream with different water qualities. Our aims were to contribute to the knowledge
Altieri, Paula Daniela   +5 more
core   +3 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

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  

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