Skip to Main content Skip to Navigation
Journal articles

Do human activities affect the picoplankton structure of the Ahe atoll lagoon (Tuamotu Archipelago, French Polynesia)?

Abstract : The spatial variations of the picoplankton (photoautotrophic and heterotrophic microorganisms) in the Ahe atoll lagoon were studied in May and October 2008 to assess whether they were affected by human activities along the atoll. Spatial patterns were studied using 10 sampling stations chosen according to the location of the anthropogenic activities (pearl farming, harbor). Experiments were also carried out to determine whether bacterial growth, with or without predators, was limited by inorganic (N and P) substrates. The results showed that heterotrophic bacterioplankton abundance was superior to the photoautotrophic organisms, especially in May. Significant increases in bacterial abundance were observed in May after 24 hours incubation with +P and +N (but not in October). All samples complied with the quality levels for fecal indicator bacteria (FIB) defined by the European Union and there was no evidence that human sewage had any impact on picoplankton over the whole atoll.
Complete list of metadata

Cited literature [54 references]  Display  Hide  Download

https://hal.archives-ouvertes.fr/hal-01420422
Contributor : Christine Dupuy Connect in order to contact the contributor
Submitted on : Tuesday, December 20, 2016 - 3:36:18 PM
Last modification on : Friday, August 5, 2022 - 9:28:38 AM
Long-term archiving on: : Tuesday, March 28, 2017 - 2:45:56 AM

File

Bouvy et al 2012.pdf
Files produced by the author(s)

Identifiers

Citation

Marc Bouvy, Christine Dupuy, Marc Pagano, Aude Barani, Loic Charpy. Do human activities affect the picoplankton structure of the Ahe atoll lagoon (Tuamotu Archipelago, French Polynesia)?. Marine Pollution Bulletin, Elsevier, 2012, Ahe Atoll and Pearl Oyster Aquaculture in the Tuamotu Archipelago, 65 (10-12), pp.516-524. ⟨10.1016/j.marpolbul.2012.01.008⟩. ⟨hal-01420422⟩

Share

Metrics

Record views

305

Files downloads

301