Catalogus

Zoeken

Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.

Boekenmand

Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).

RSS

Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.

log in

Publicaties | Kaarten

nieuwe zoekopdracht

[ meld een fout in dit record ]

mandje (0): toevoegen | toon

---

Short-term response and recovery of Zostera capricorni photosynthesis after herbicide exposure Macinnis-Ng, C.M.O.; Ralph, P.J. (2003). Short-term response and recovery of Zostera capricorni photosynthesis after herbicide exposure. Aquat. Bot. 76(1): 1-15. http://dx.doi.org/10.1016/s0304-3770(03)00014-7 In: Aquatic Botany. Elsevier Science: Tokyo; Oxford; New York; London; Amsterdam. ISSN 0304-3770; e-ISSN 1879-1522

---

Beschikbaar in	Auteurs
VLIZ: Open access 57410 [ download pdf ]

---

Trefwoorden

Atrazine Chemical compounds > Organic compounds > Carbohydrates > Glycosides > Pigments > Photosynthetic pigments Chemical reactions > Photochemical reactions > Photosynthesis Diuron Luminescence > Fluorescence Materials > Amendments > Soil amendments > Evaporation suppressants > Triazine herbicides > Antitranspirants > Atrazine Organic compounds > Carbohydrates > Glycosides > Pigments > Photosynthetic pigments > Chlorophylls Pesticides > Herbicides Pesticides > Herbicides > Urea herbicides > Phenylurea herbicides > Urea herbicides > Diuron Pollution effects PSE, Australia, New South Wales, Paradise Beach Recovery Zostera capricorni Ascherson, 1876 [WoRMS] Marien/Kust

Author keywords

Zostera capricorni; Atrazine; Diuron; Irgarol 1051; photochemistry;pollution effects; chlorophyll a; fluorescence

---

Auteurs		Top
Macinnis-Ng, C.M.O. Ralph, P.J.

---

Abstract

We used photosynthetic activity (measured as chlorophyll a fluorescence) and photosynthetic pigment concentrations to assess the effect of pulsed exposure to catastrophic levels of the herbicides Atrazine, Diuron and Irgarol 1051 on the seagrass Zostera capricorni Aschers. in laboratory and field experiments. Custom-made in situ chambers were developed so seagrasses could be dosed within the meadow. Zostera capricorni was exposed to 10 and 100 μg l-1 herbicide solutions for 10 h. During this time and for the subsequent 4-day recovery period, chlorophyll a fluorescence parameters (maximum quantum yield: Fv/Fm and effective quantum yield: ∆F/Fm') were measured. Laboratory samples exposed to these herbicides were severely impacted during the exposure period and most treatments did not recover fully. ∆ F/Fm' was a more sensitive indicator of herbicide impact than Fv/Fm. In situ samples were also severely impacted by Irgarol and Diuron exposure whereas samples recovered completely after exposure to Atrazine at the same concentrations as the laboratory experiments. Total chlorophyll concentrations showed only limited impact in both laboratory and field situations. This study suggests that laboratory experiments may overestimate the on-going impact of herbicides on seagrass.

---

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid

Top | Auteurs