Results 91 to 100 of about 4,187 (202)

Monograph of the Genus Elodea (Hydrocharitaceae): Part 2. The species found in the Andes and Western South America Monograph of the Genus Elodea (Hydrocharitaceae): Part 2. The species found in the Andes and Western South America

open access: yesCaldasia, 1964
The genus Elodea Richard in Michaux was first published in 1803 (Fl. Bor.-Am. 1: 20, 1803), based upon the single species. E. Canadensis from Montreal, Quebec, Canada.
St. John Harold
doaj  

The vulnerable seagrass Halophila beccarii Aschers. (Hydrocharitaceae) from Malaysia

open access: yesFrontiers in Conservation Science
Halophila beccarii Aschers. is a small, vulnerable seagrass species found throughout the Indo-West Pacific. In Malaysia, its distribution is highly fragmented and faces increasing threats from human activities and natural disturbances.
Muta Harah Zakaria   +3 more
doaj   +1 more source

Ekosistem Lamun Sebagai Bioindikator Lingkungan Di P. Lembeh, Bitung, Sulawesi Utara [PDF]

open access: yes, 2015
Seagrass ecosystem has a function of spawning, nursery, and feeding ground. Besides, it could be used as a bio-indicator of environmental health. This study of seagrass ecosystem was done in 17- 22 May 2014 in Lembeh Island and Tanjung Merah, Bitung. The
Ati, R. N. (Restu)   +10 more
core  

Hubungan Kelimpahan Fitoperifiton Dengan Konsentrasi Nitrat Dan Ortofosfat Pada Daun Enhalus Acoroides Di Perairan Pantai Jepara [PDF]

open access: yes, 2014
Padang lamun merupakan tempat naungan, mencari makan dan berkembangbiak berbagai biota air termasuk fitoperifiton. Fitoperifiton mempunyai peranan penting sebagai salah satu penentu produktivitas primer di lingkungan lamun. Penelitian ini bertujuan untuk
Apriliana, A. (Ade)   +2 more
core  

Comparative gynoecium morphology in Stratiotes aloides L. and Hydrocharis morsus-ranae L. (Hydrocharitaceae)

open access: yesБіологічні студії, 2010
Comparative morphology and vascularisation of the gynoecium in Stratiotes aloides and Hydrocharis morsus-ranae hare been studied. The gynoecium is syncarpous, with synascidiate, symplicate, hemisymplicate and asymplicate zones, first three zones are ...
S. V. Izmestieva, A. V. Odintsova
doaj   +1 more source

Population genetic structure and phylogeography of invasive aquatic weed, Elodea canadensis (Hydrocharitaceae) and comparative analyses with E. nuttallii [PDF]

open access: yes, 2012
The introductions of invasive species are one of the most important threats to global biodiversity and ecosystem function. In addition, invasive species often cause large economical and social consequences.
Huotari, Tea
core  

Niche-breadth of freshwater macrophytes occurring in tropical southern African rivers predicts species global latitudinal range [PDF]

open access: yes, 2016
The study tested the hypothesis that measurement, using multivariate Principal Components Analy-sis (PCA), of the niche-breadth of river macrophyte species in southern tropical Africa, may predicttheir larger-scale biogeographical range.
Bottino, F.   +18 more
core   +2 more sources

The complete chloroplast genome of Ottelia acuminata var. songmingensis, an Endangered aquatic macrophyte in China

open access: yesMitochondrial DNA. Part B. Resources, 2019
Ottelia acuminata var. songmingensis is an Endangered freshwater submerged macrophyte occupying only a portion of a stream ca. 300 meters long in Songming County of the Yunnan Province, China.
Jian-Ling Guo   +4 more
doaj   +1 more source

The Effects of Grass Carp on Aquatic Plants, Plankton and Benthos in Ponds [PDF]

open access: yes, 2004
The effects of the grass carp (Ctenopharyngodon idella Val.)on aquatic plant biomass, water quality, phytoplankton, chlorophyll a, zooplankton and benthic fauna were investigated between May and September 2000 in earthen ponds at Cifteler- Sakaryabasi
Demir, N., Kirkagac, Mine
core  

Current distribution and conservation of Najas tenuissima (Hydrocharitaceae)

open access: yesNature Conservation Research: Заповедная наука, 2016
Najas tenuissima (Hydrocharitaceae) is an endangered relict species with a disjunctive range in Eastern Europe, in the Urals, in Siberia and Kazakhstan, and in the Far East, in Japan.
Elena V. Vargot   +3 more
doaj  

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