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You searched for: Journal Aquatic botany Remove constraint Journal: Aquatic botany Publication Year 2019 Remove constraint Publication Year: 2019 Subject chlorophyll Remove constraint Subject: chlorophyll
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1. Does species richness affect the growth and water quality of submerged macrophyte assemblages?

Author:
Zhang, Qian; Liu, Yun-Peng; Luo, Fang-Li; Dong, Bi-Cheng; Yu, Fei-Hai
Source:
Aquatic botany 2019 v.153 pp. 51-57
ISSN:
0304-3770
Subject:
Ceratophyllum demersum; Elodea nuttallii; Hydrilla verticillata; Myriophyllum; aquatic ecosystems; asexual reproduction; biochemical oxygen demand; biomass; botany; carbon; chlorophyll; dissolved oxygen; ecological invasion; macrophytes; nitrogen cycle; oxygen; phosphorus; physicochemical properties; species richness; total nitrogen; transmittance; vegetation; water quality
Abstract:
... Biodiversity commonly plays important roles in ecosystem functioning. While many studies have tested effects of species diversity on productivity, carbon and nitrogen cycling and resistance to biological invasion, few have examined how diversity of submerged macrophytes affects the water quality of aquatic ecosystems. We assembled aquatic microcosms with 1, 2, 3 and 4 submerged macrophyte species ...
DOI:
10.1016/j.aquabot.2018.11.006

2. Physiological responses of Carex schmidtii Meinsh to alternating flooding-drought conditions in the Momoge wetland, northeast China

Author:
Zhang, Dongjie; Qi, Qing; Wang, Xuehong; Tong, Shouzheng; Lv, Xianguo; An, Yu; Zhu, Xiaoyan
Source:
Aquatic botany 2019 v.153 pp. 33-39
ISSN:
0304-3770
Subject:
Carex; aquatic plants; biomass production; chlorophyll; conservation areas; developmental stages; environmental factors; enzyme activity; leaf morphology; leaves; nitrogen; phosphorus content; physiological response; plant growth; proline; semiarid zones; stoichiometry; superoxide dismutase; water conservation; water supply; wetland plants; wetlands; China
Abstract:
... Alternating flooding-drought conditions have been shown to be an effective water-saving method to restore wetland plants in arid and semi-arid regions. Carex schmidtii is a critical plant species for the restoration of degraded wetlands in the Momoge National Nature Reserve (MNNR) in northeast China. Comparative studies of plant leaves, under permanent inundation condition (AF condition) and 30 d ...
DOI:
10.1016/j.aquabot.2018.11.010

3. Simulated global increases in atmospheric CO2 alter the tissue composition, but not the growth of some submerged aquatic plant bicarbonate users growing in DIC rich waters

Author:
Hussner, Andreas; Smith, Rosali; Mettler-Altmann, Tabea; Hill, Martin P.; Coetzee, Julie
Source:
Aquatic botany 2019 v.153 pp. 44-50
ISSN:
0304-3770
Subject:
absorption; air; bicarbonates; carbon dioxide; carbon dioxide enrichment; chlorophyll; dry matter partitioning; ecosystems; inorganic carbon; leaves; nitrogen; nitrogen content; photosynthesis; plant nitrogen content; roots; starch; submerged aquatic plants; South Africa
Abstract:
... Current global change scenarios predict an increase in atmospheric CO2 from the current 380 ppm to a value ranging from 540 ppm to 960 ppm by the year 2100. The effects of three air CO2 levels (400, 600 and 800 ppm) on five submerged aquatic plants that utilize HCO3− were studied, using the elevated CO2 Open Top Chamber facility at Rhodes University (Grahamstown, South Africa). Plants grew in wate ...
DOI:
10.1016/j.aquabot.2018.11.009

4. Changes in survival, growth and photosynthetic pigment in response to iron increase in the leaf and root-rhizome tissues of eelgrass Zostera marina

Author:
Xu, Jun-Ge; Zhang, Qian; Li, Hong-Chen; Wu, Xiao-Xiao; Li, Wen-Tao; Zhang, Pei-Dong
Source:
Aquatic botany 2019 v.154 pp. 60-65
ISSN:
0304-3770
Subject:
Zostera marina; chlorophyll; ecophysiology; internode diameter; iron; laboratory experimentation; leaves; photosynthesis; plant response; root growth; seagrasses; seawater; stems; survival rate; tissues
Abstract:
... This study tested the responses of leaves and root-rhizomes of eelgrass Zostera marina plants to iron additions in a two-compartment system which allowed the separation of the root-rhizome portion from the stems and leaves. We subjected whole Z. marina plants to seawater containing 500 μg l−1 Fe (reference seawater) and 700 μg l−1 Fe in the leaf and/or root-rhizome compartments for over 30 days un ...
DOI:
10.1016/j.aquabot.2018.12.007

5. Responses of periphyton on non-plant substrates to different macrophytes under various nitrogen concentrations: A mesocosm study

Author:
Cao, Yu; Zhang, Na; Sun, Junyao; Li, Wei
Source:
Aquatic botany 2019 v.154 pp. 53-59
ISSN:
0304-3770
Subject:
Potamogeton; Vallisneria; algae; ammonia; aquatic ecosystems; botany; carbon; chlorophyll; detritus; lakes; macrophytes; microorganisms; nitrates; nitrogen; nitrogen content; periphyton; phosphorus; sand; species richness
Abstract:
... Periphyton in aquatic ecosystems is comprised of algae, heterotrophic microbes, and detritus. In shallow lakes, periphyton is affected by substrate type, nutrient supply, and other factors. Periphyton on macrophytes can interact strongly with the host, but whether different periphyton on non-plant substrates are affected by nearby submerged macrophytes is unclear. We conducted a six-month mesocosm ...
DOI:
10.1016/j.aquabot.2019.01.003

6. Submerged vegetation in a shallow brackish lagoon does not enhance water clarity but offers substantial refuge for zooplankton

Author:
Meyer, Jutta; Dahlke, Sven; Kafka, Milena; Kerkow, Antje; Lindner, Caroline; Kube, Sandra; Nawka, Božena L.; Schubert, Hendrik; Schumann, Rhena; Blindow, Irmgard
Source:
Aquatic botany 2019 v.154 pp. 1-10
ISSN:
0304-3770
Subject:
Copepoda; Fucus vesiculosus; Ruppia; Stuckenia pectinata; biomass; botany; chlorophyll; coastal water; coasts; environmental impact; freshwater lakes; migratory behavior; nutrient content; nutrients; phytoplankton; sediments; submerged aquatic plants; vegetation; water quality; zooplankton; Baltic Sea
Abstract:
... The small-scale impact of submerged vegetation (locally enhanced water transparency) on abiotic / biotic parameters was studied in a shallow (< 1 m mean water depth) brackish lagoon at the German Baltic Sea coast. Suspended matter, nutrients, chlorophyll, light, and zooplankton composition and biomass were compared between dense and sparse submerged vegetation at two sites five times during the ve ...
DOI:
10.1016/j.aquabot.2018.12.002

7. Biomonitoring of Posidonia oceanica beds by a multiscale approach

Author:
Cozza, R.; Rende, F.; Ferrari, M.; Bruno, L.; Pacenza, M.; Dattola, L.; Bitonti, M.B.
Source:
Aquatic botany 2019 v.156 pp. 14-24
ISSN:
0304-3770
Subject:
Posidonia oceanica; biomarkers; botany; chlorophyll; conservation status; economic feasibility; environmental monitoring; fluorescence; genes; meadows; phenology; photosynthesis; quantitative analysis; remote sensing; risk; seagrasses; stress response
Abstract:
... In this study a multiscale biomonitoring approach, which encompasses multiple levels of observations (from ultra- to meso- and macroscale, photo mosaicing and SRS), was applied to evaluate the conservation status of a P. oceanica meadow. In particular, the approach included a combination of molecular and biochemical parameters associated to the assessment of plant phenology and large-spatial bed s ...
DOI:
10.1016/j.aquabot.2019.04.002

8. Invasive Myriophyllum spicatum and nutrients interact to influence algal assemblages

Author:
Ortiz, Jade E.; Marcarelli, Amy M.; Juneau, Kevyn J.; Huckins, Casey J
Source:
Aquatic botany 2019 v.156 pp. 1-9
ISSN:
0304-3770
Subject:
Bacillariophyceae; Bulbochaete; Cladophora; Cryptophyceae; Myriophyllum spicatum; algae; aquatic ecosystems; biodiversity; biomass; botany; chlorophyll; dissolved oxygen; eutrophication; gross primary productivity; invasive species; macrophytes; nutrients; plankton; pollution load
Abstract:
... Eutrophication and invasive species are widespread stressors that have the potential to interact and alter the biodiversity and productivity of aquatic ecosystems. We conducted a two-way factorial mesocosm experiment testing interacting effects of nutrient loading and presence of the invasive macrophyte Myriophyllum spicatum on the composition, biomass, and productivity of attached and suspended a ...
DOI:
10.1016/j.aquabot.2019.03.003

9. Flooding and submersion-induced morphological and physiological adaptive strategies in Lonchocarpus cultratus

Author:
Marcílio, Thais; Barbeiro, Caroline; Firmino, Taysi Pereira; Romagnolo, Mariza Barion; de Souza, Luiz Antonio; Pastorini, Lindamir Hernandez
Source:
Aquatic botany 2019 v.159 pp. 103146
ISSN:
0304-3770
Subject:
Lonchocarpus; adventitious roots; aquatic plants; chlorophyll; death; field capacity; leaves; root crown; shoots; sucrose
Abstract:
... Young plants of Lonchocarpus cultratus (Vell.) AMG Azevedo & HC Lima were kept in conditions of field capacity (FC), flooding (FL), total submersion (TS), post-flooding (PF), and post-submersion (PS) so survival strategies could be evaluated. Analyzes were performed after 30 and 60 days of hydric treatment (DTH). Soil flooding resulted in the production of hypertrophied lenticels and adventitious ...
DOI:
10.1016/j.aquabot.2019.103146