Short-term variation of zooplankton community in Cintra Bay (Northwest Africa)

• Autorzy: Berraho Amina , Abdelouahab Hinde , Baibai Tarik , Charib Said , Larissi Jamila , Agouzouk Aziz , Makaoui Ahmed

Identyfikatory

DOI

10.1016/j.oceano.2019.02.001

• Języki publikacji: EN

Abstrakty

EN

This is the first study that describes the spatial-temporal distributions of the zooplank- ton community and potential control factors in Cintra Bay. Zooplankton were sampled using a bongo net, 150 μm mesh size, during two surveys, in autumn 2015 and spring 2016, extending from the coast to the open sea. Fourteen zooplankton groups were identified, where copepods represented 49.1% and 92.5% of the total abundance in autumn 2015 and spring 2016, respectively. Tintinnids accounted for 39.7% and 4.7%, respectively. The total zooplankton abundance was higher in autumn (55 992 ind m^-3) than in spring (2123 ind m^-3). Nineteen species of copepods, belonging to 14 families, were identified. Euterpina acutifrons and Oithona nana were the most common and abundant species. The Acartiids were represented by three species (Acartia clausi, A. tonsa and A. bifilosa) in autumn and one species in spring (A. clausi). The copepods diversity was significantly different between the two seasons showing high values at the entrance and the center of the bay in autumn 2015 and in the southern half of the bay in spring 2016. The copepod structure was characterized by 13 species at different degrees of contribution in autumn 2015. In spring 2016, only four species qualified as indicator species although their contribution was not significant. Given its large opening on the ocean, Cintra Bay benefits largely from the conditions of the oceanic environment, particularly the upwelling. This situation is likely to have an impact on the spatiotemporal variability of the composition and distribution of zooplankton, especially the copepods.

Słowa kluczowe

EN

Cintra Bay; zooplankton; copepods; diversity indices; environmental parameters

• Wydawca: Polish Academy of Sciences, Institute of Oceanology ; Elsevier
• Czasopismo: Oceanologia
• Rocznik: 2019
• Tom: No. 61 (3)
• Strony: 368--383
• Opis fizyczny: Bibliogr. 97 poz., mapa, tab., wykr.

Twórcy

autor

Berraho Amina

• National Institute of Fisheries Research, Casablanca, Morocco

autor

Abdelouahab Hinde

• National Institute of Fisheries Research, Casablanca, Morocco

autor

Baibai Tarik

• National Institute of Fisheries Research, Casablanca, Morocco

autor

Charib Said

• National Institute of Fisheries Research, Casablanca, Morocco

autor

Larissi Jamila

• National Institute of Fisheries Research, Casablanca, Morocco

autor

Agouzouk Aziz

• National Institute of Fisheries Research, Casablanca, Morocco

autor

Makaoui Ahmed

• National Institute of Fisheries Research, Casablanca, Morocco

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).