scholarly journals Growth and physiological acclimation to temperature and inorganic carbon availability by two submerged aquatic macrophyte species, Callitriche cophocarpa and Elodea canadensis

2000 ◽  
Vol 14 (2) ◽  
pp. 252-260 ◽  
Author(s):  
B. Olesen ◽  
T. V. Madsen
Keyword(s):  
Inorganic Carbon ◽  
Aquatic Macrophyte ◽  
Elodea Canadensis ◽  
Carbon Availability ◽  
Macrophyte Species ◽  
Physiological Acclimation

scholarly journals Functional macrophyte trait variation as a response to the source of inorganic carbon acquisition

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e12584
Author(s):  
Rafał Chmara ◽  
Eugeniusz Pronin ◽  
Józef Szmeja
Keyword(s):  
Leaf Area ◽  
Functional Traits ◽  
Environmental Variables ◽  
Inorganic Carbon ◽  
Aquatic Macrophyte ◽  
Secchi Depth ◽  
Leaf Traits ◽  
Wide Range ◽  
Macrophyte Species ◽  
Inorganic Carbon Acquisition

Background This study aims to compare variation in a range of aquatic macrophyte species leaf traits into three carbon acquisition groups: HCO3−, free CO2 and atmospheric CO2. Methods The leaf functional traits were measured for 30 species from 30 softwater lakes. Macrophyte species were classified into (1) free CO2, (2) atmospheric CO2 and (3) bicarbonate HCO3− groups. In each lake we collected water samples and measured eight environmental variables: depth, Secchi depth, photosynthetically active radiation (PAR), pH of water, conductivity, calcium concentration, total nitrogen and total phosphorus. In this study we applied the RLQ analysis to investigate the relationships between species functional traits (Q) and their relationship with environmental variables (R) constrained by species abundance (L). Results The results showed that: (1) Aquatic macrophytes exhibited high leaf trait variations as a response to different inorganic carbon acquisition; (2) Traits of leaves refer to the acquisition of carbon for photosynthesis and serve to maximise this process; (3) In the wide softwater habitat, macrophyte species exhibited an extreme range of leaf economic spectrum (leaf area, leaf dry weight and specific leaf area) and wide range of shape trait expressed as circularity; (4) Macrophyte leaf traits are the result of adaptation to carbon acquisition in ambient environment.

Plasticity responses of an invasive macrophyte species to inorganic carbon availability and to the interaction with a native species

Hydrobiologia ◽  
2018 ◽  
Vol 817 (1) ◽  
pp. 227-237 ◽  
Author(s):  
José Vitor Botter Fasoli ◽  
Roger Paulo Mormul ◽  
Eduardo Ribeiro Cunha ◽  
Sidinei Magela Thomaz
Keyword(s):  
Native Species ◽  
Inorganic Carbon ◽  
Carbon Availability ◽  
Macrophyte Species

scholarly journals Feeding selectivity and growth of Nile tilapia (Oreochromis niloticus L.) fed on temperate-zone aquatic macrophytes

2011 ◽  
Vol 49 (No. 6) ◽  
pp. 271-278 ◽  
Author(s):  
I. Šetlíková ◽  
Z. Adámek
Keyword(s):  
Oreochromis Niloticus ◽  
Nile Tilapia ◽  
Aquatic Macrophyte ◽  
Myriophyllum Spicatum ◽  
Dry Weight ◽  
Elodea Canadensis ◽  
Potamogeton Pectinatus ◽  
Feeding Selectivity ◽  
Nile Tilapia Oreochromis Niloticus ◽  
Macrophyte Species

Feeding selectivity of Nile tilapia (Oreochromis niloticus L.) juveniles (9.3&ndash;20.9 g) to four aquatic macrophyte species and tilapia growth were studied in 4 consecutive experiments. Plant diet was provided to 8 tanks containing 20 fishes for 5 days. The fish were fed a carp diet between 4 experiments for 14 days. The consumption of 4 aquatic macrophyte species differed significantly [F(3,252) = 39.6; P &lt; 10<sup>&ndash;6</sup>]. Elodea canadensis was the most preferred plant (Chesson selectivity index = 0.50 &plusmn; 0.05, n = 4). Potamogeton pectinatus and Spirodela polyrhiza were consumed with about equal preference. Myriophyllum spicatum was the least preferred species. Elodea canadensis contained relatively more phosphorus, potassium and ash than the other three species. The daily plant dry weight intake ranged between 0.79 and 2.26% of body weight. The fish grew during the first two experiments (SGR = 2.54 and 3.18%/d, respectively), but lost weight during the 3rd and 4th experiments (SGR = &ndash;1.75 and &ndash;1.71%/d, respectively). &nbsp;

Physiological Effects of Exposure to Copper and Chromium in Three Floating Aquatic Macrophyte Species

2021 ◽  
Vol 232 (1) ◽  
Author(s):  
Débora Cristina de Souza ◽  
Ana Carla Fontaneli ◽  
Ana Paula Peron ◽  
Sandro Froehner
Keyword(s):  
Aquatic Macrophyte ◽  
Physiological Effects ◽  
Macrophyte Species

Photosynthetic Capacity, Bicarbonate Affinity and Growth of Elodea canadensis Exposed to Different Concentrations of Inorganic Carbon

Oikos ◽  
1987 ◽  
Vol 50 (2) ◽  
pp. 176 ◽  
Author(s):  
Tom Vindbœk Madsen ◽  
Kaj Sand-Jensen ◽  
Tom Vindboek Madsen
Keyword(s):  
Inorganic Carbon ◽  
Photosynthetic Capacity ◽  
Elodea Canadensis

Effect of copper on growth of an aquatic macrophyte, Elodea canadensis

2002 ◽  
Vol 120 (2) ◽  
pp. 307-311 ◽  
Author(s):  
Tarun K. Mal ◽  
Peter Adorjan ◽  
Andrea L. Corbett
Keyword(s):  
Aquatic Macrophyte ◽  
Elodea Canadensis ◽  
Effect Of Copper

Photosynthesis in estuarine intertidal microphytobenthos is limited by inorganic carbon availability

2015 ◽  
Vol 128 (1) ◽  
pp. 85-92 ◽  
Author(s):  
Sónia Vieira ◽  
Paulo Cartaxana ◽  
Cristina Máguas ◽  
Jorge Marques da Silva
Keyword(s):  
Inorganic Carbon ◽  
Carbon Availability

Fractionation of carbonic anhydrase activity in Gracilaria sp. (Rhodophyta) and Enteromorpha intestinalis (Chlorophyta): changes in the extracellular activity in response to inorganic carbon levels

2000 ◽  
Vol 27 (12) ◽  
pp. 1161 ◽  
Author(s):  
Jesús R. Andría ◽  
Juan J. Vergara ◽  
J. Lucas Pérez-Lloréns
Keyword(s):  
Carbonic Anhydrase ◽  
Inorganic Carbon ◽  
Soluble Fraction ◽  
Total Activity ◽  
Carbonic Anhydrase Activity ◽  
Enteromorpha Intestinalis ◽  
Short Term ◽  
Carbon Availability ◽  
Species Specific ◽  
Extracellular Activity

The presence of different carbonic anhydrase (EC 4.2.1.1) activities has been investigated in the intertidal macroalgae Gracilaria sp. and Enteromorpha intestinalis (L.) Nees by using fractionation techniques. Activities, measured potentiometrically, were recorded for all fractions in both species, including those containing proteins associated with chloroplast membranes. In Gracilaria sp., most of the total activity was present in the soluble fraction, while similar activities were obtained for all fractions in E. intestinalis. By using inhibitors with a different capacity to enter the cell (acetazolamide and 6-ethoxyzolamide, inhibitors of external and total activity, respectively), a surface-accessible location was indicated for a high proportion of the soluble activity obtained in Gracilaria sp. In E. intestinalis, the inhibitor assays showed a substantial dependence of photosynthesis on intracellular activity. The short-term regulation of the extracellular activity in response to inorganic carbon availability was also examined in both macroalgae. Rapid repression (after 2 h) of the activity was recorded when Gracilaria sp. was transferred from limited to replete carbon conditions, while a fairly constant activity was recorded for E. intestinalis. In contrast, an increase of external activity was obtained for both macroalgae after being transferred to carbon-limited conditions, this response being more pronounced in E. intestinalis. Our results suggest the occurrence of a species-specific carbonic anhydrase system.

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