Water quality affects the structure of copepod assemblages along the Sfax southern coast (Tunisia, southern Mediterranean Sea)
International audience The Sfax southern coast (Gulf of Gabes, Mediterranean Sea) has been under increased anthropogenic pressure for many years. In the present study we investigated the effects of this anthropisation on the spatial distribution of copepod assemblages in relation to the physicochemi...
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ftunivtoulon:oai:HAL:hal-01799482v1 2024-09-15T18:41:38+00:00 Water quality affects the structure of copepod assemblages along the Sfax southern coast (Tunisia, southern Mediterranean Sea) Drira, Zaher Kmiha-Megdiche, Salma Sahnoun, Houda Pagano, Marc Tedetti, Marc Ayadi, Habib Université de Sfax - University of Sfax Institut Préparatoire aux Etudes d'Ingénieur de Sfax (IPEIS) Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) 2018 https://hal.science/hal-01799482 https://hal.science/hal-01799482/document https://hal.science/hal-01799482/file/Drira%20et%20al_2018_HAL_2.pdf https://doi.org/10.1071/MF17133 en eng HAL CCSD CSIRO Publishing info:eu-repo/semantics/altIdentifier/doi/10.1071/MF17133 hal-01799482 https://hal.science/hal-01799482 https://hal.science/hal-01799482/document https://hal.science/hal-01799482/file/Drira%20et%20al_2018_HAL_2.pdf doi:10.1071/MF17133 IRD: fdi:010072063 info:eu-repo/semantics/OpenAccess ISSN: 1323-1650 Marine and Freshwater Research https://hal.science/hal-01799482 Marine and Freshwater Research, 2018, 69 (2), pp.220-231. ⟨10.1071/MF17133⟩ anthropogenic inputs chemical oxygen demand 5-day biochemical oxygen demand zooplankton COD-BOD5 diversity [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2018 ftunivtoulon https://doi.org/10.1071/MF17133 2024-07-15T23:39:38Z International audience The Sfax southern coast (Gulf of Gabes, Mediterranean Sea) has been under increased anthropogenic pressure for many years. In the present study we investigated the effects of this anthropisation on the spatial distribution of copepod assemblages in relation to the physicochemical features of seawater at 20 stations sampled on 19 March 2013. Copepods represented 73% of total zooplankton abundance. Small planktonic copepods (<1.45 mm), including pollution-tolerant species (e.g. Oithona nana, Paracalanus parvus, Harpacticus littoralis and Tisbe battagliai), proliferated exclusively in stations of ~0.5-m depth characterised by high coastal anthropogenic inputs. The largest copepod species were dominated by Calanus helgolandicus (1.45–2.5 mm) in the offshore zone in depths of ~3 m. Substantial numbers of Oithona plumifera (7.5%) were found at depths between 0.5 and 3 m. Copepod diversity was significantly higher in the southern zone, which is less affected by sewage, than in the northern zone, which was subjected to higher pressure (Shannon–Wiener index H′ = 1.5–2.5 and ≤1.5 bits individual–1). A shift in the planktonic copepod community between the two zones was linked to deterioration of water quality, with higher phosphorus levels, turbidity and chemical oxygen demand (COD) in the northern zone. Article in Journal/Newspaper Copepods Harpacticus Université de Toulon: HAL Marine and Freshwater Research 69 2 220 |
institution |
Open Polar |
collection |
Université de Toulon: HAL |
op_collection_id |
ftunivtoulon |
language |
English |
topic |
anthropogenic inputs chemical oxygen demand 5-day biochemical oxygen demand zooplankton COD-BOD5 diversity [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
anthropogenic inputs chemical oxygen demand 5-day biochemical oxygen demand zooplankton COD-BOD5 diversity [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDE.BE]Environmental Sciences/Biodiversity and Ecology Drira, Zaher Kmiha-Megdiche, Salma Sahnoun, Houda Pagano, Marc Tedetti, Marc Ayadi, Habib Water quality affects the structure of copepod assemblages along the Sfax southern coast (Tunisia, southern Mediterranean Sea) |
topic_facet |
anthropogenic inputs chemical oxygen demand 5-day biochemical oxygen demand zooplankton COD-BOD5 diversity [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience The Sfax southern coast (Gulf of Gabes, Mediterranean Sea) has been under increased anthropogenic pressure for many years. In the present study we investigated the effects of this anthropisation on the spatial distribution of copepod assemblages in relation to the physicochemical features of seawater at 20 stations sampled on 19 March 2013. Copepods represented 73% of total zooplankton abundance. Small planktonic copepods (<1.45 mm), including pollution-tolerant species (e.g. Oithona nana, Paracalanus parvus, Harpacticus littoralis and Tisbe battagliai), proliferated exclusively in stations of ~0.5-m depth characterised by high coastal anthropogenic inputs. The largest copepod species were dominated by Calanus helgolandicus (1.45–2.5 mm) in the offshore zone in depths of ~3 m. Substantial numbers of Oithona plumifera (7.5%) were found at depths between 0.5 and 3 m. Copepod diversity was significantly higher in the southern zone, which is less affected by sewage, than in the northern zone, which was subjected to higher pressure (Shannon–Wiener index H′ = 1.5–2.5 and ≤1.5 bits individual–1). A shift in the planktonic copepod community between the two zones was linked to deterioration of water quality, with higher phosphorus levels, turbidity and chemical oxygen demand (COD) in the northern zone. |
author2 |
Université de Sfax - University of Sfax Institut Préparatoire aux Etudes d'Ingénieur de Sfax (IPEIS) Institut méditerranéen d'océanologie (MIO) Institut de Recherche pour le Développement (IRD)-Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Toulon (UTLN)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Drira, Zaher Kmiha-Megdiche, Salma Sahnoun, Houda Pagano, Marc Tedetti, Marc Ayadi, Habib |
author_facet |
Drira, Zaher Kmiha-Megdiche, Salma Sahnoun, Houda Pagano, Marc Tedetti, Marc Ayadi, Habib |
author_sort |
Drira, Zaher |
title |
Water quality affects the structure of copepod assemblages along the Sfax southern coast (Tunisia, southern Mediterranean Sea) |
title_short |
Water quality affects the structure of copepod assemblages along the Sfax southern coast (Tunisia, southern Mediterranean Sea) |
title_full |
Water quality affects the structure of copepod assemblages along the Sfax southern coast (Tunisia, southern Mediterranean Sea) |
title_fullStr |
Water quality affects the structure of copepod assemblages along the Sfax southern coast (Tunisia, southern Mediterranean Sea) |
title_full_unstemmed |
Water quality affects the structure of copepod assemblages along the Sfax southern coast (Tunisia, southern Mediterranean Sea) |
title_sort |
water quality affects the structure of copepod assemblages along the sfax southern coast (tunisia, southern mediterranean sea) |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-01799482 https://hal.science/hal-01799482/document https://hal.science/hal-01799482/file/Drira%20et%20al_2018_HAL_2.pdf https://doi.org/10.1071/MF17133 |
genre |
Copepods Harpacticus |
genre_facet |
Copepods Harpacticus |
op_source |
ISSN: 1323-1650 Marine and Freshwater Research https://hal.science/hal-01799482 Marine and Freshwater Research, 2018, 69 (2), pp.220-231. ⟨10.1071/MF17133⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1071/MF17133 hal-01799482 https://hal.science/hal-01799482 https://hal.science/hal-01799482/document https://hal.science/hal-01799482/file/Drira%20et%20al_2018_HAL_2.pdf doi:10.1071/MF17133 IRD: fdi:010072063 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1071/MF17133 |
container_title |
Marine and Freshwater Research |
container_volume |
69 |
container_issue |
2 |
container_start_page |
220 |
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1810486028756058112 |