Effects of environmental parameters on the nycthemeral migratory behaviour of copepod species in the Al Massira reservoir, Morocco

Khadija Mokhliss; Mohammed Moncef

doi:10.30574/gscbps.2020.13.3.381

Authors

Khadija Mokhliss Laboratory of Physiology and Ecotoxicology, Department of Biology, Faculty of Sciences Chouaïb Doukkali University, 2400, BP 20, Route Ben Maachou, El Jadida, Morocco.
Mohammed Moncef Laboratories of Environmental Study and Analysis, Department of Biology, Faculty of Sciences Chouaïb Doukkali University, 2400, BP 20, Route Ben Maachou, El Jadida, Morocco.

DOI:

https://doi.org/10.30574/gscbps.2020.13.3.381

Keywords:

Nycthemeral migration, Copepods, Dam, Abiotic parameters

Abstract

To improve our knowledge of nocturnal and diurnal migratory activity in copepods and in order to assess the effect of abiotic parameters on this activity, we have undertaken at the level of the Al Massira dam reservoir (dam located on the wadi Oum Erbia, in Morocco) the monitoring of the migration of the main species, during a 24-hour nycthemeral cycle. To be done; the measurement and sampling step is carried out every 4 hours; at different depths of the prospected station. The temperature, pH, dissolved oxygen and chlorophyll a measurements are taken. The systematic position of the main species of copepods and their density are determined.

Most of the results obtained show that the main species of copepods inventoried within the reservoir are Neolovenula alluaudi and Acanthocyclops robustus. The nauplii of these two species present the maximum of densities at a depth of -5 m at 12 h; i.e. 70400 individual / m3 (ind / m³). The development stages of N. alluaudi are preferentially concentrated at -2 m at midnight, with 1900 ind / m³, while at 12 h and 16 h this density is less than 500 ind / m³. The maximum density for the stages of A. robustus is noted at midnight on the surface (at -5 m), i.e. 3400 ind / m³ for C1-2 and 3200 ind / m³ for stages C3-4-5 at -2 m at the same time. Therefore, the migratory behavior of these species seems to depend on the temperature, the concentration of dissolved oxygen and the variation of the food during the different phases of the cycle.

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References

Mayans M. Etude expérimentale in situ du broutage exercé par le zooplancton (Daphnia longispina) sur le peuplement algal printanier d’une retenue oligotrophe [D.E.A]. Provence, France; 1987.

Pourriot R, Capblanq J, Champ P, Meyer JA. Ecologie du plancton des eaux continentales. Éd. Masson, Paris, France; 1982. P.198.

Ramos-Jiliberto R, Carvajal JL, Carter M, Zúñiga LR. Diel vertical migration patterns of three zooplankton populations in a Chilean lake. Rev Chil de Hist Nat . 2004; 77: 29 - 41.

Taleb H, Lair N, Reyes-Marchant P, Jamet JL. Observation on vertical migrations of zooplankton at four different stations of a small eutrophic, temperate zone lake, in relation to their predators. Arch Hydrobiol Beid Ergebn Limnol. 1993; 39: 199-216.

Berge J, Renaud PE, Darnis G, Cottier F. Arctic complexity: a case study on diel vertical migration of zooplankton. J Plankton Res. 2015; 36 (5): 1279-1297.

El khalki A. Etude du peuplement de Copépodes pélagiques de l’estuaire de l’Oum Er-Rbia: succession saisonnière, dynamiques des populations. Migrations Nycthémérales et impact de la pollution. [Doctorat en Sciences de l’Environnement]. Univ, Chouaïb Doukkali, Faculté des Sciences, El Jadida, Maroc; 2000.

Ouldessaïb T. Etude de peuplement de copépode de la lagune d’Oualidia. [Doctorat de 3ème cycle]. Univ, ChouaïbDoukkali, Faculté des Sciences d’El Jadida; 1997.

Rodier J. L’analyse de l’eau. Éd. Dunod, Paris, France; 1984. P.1365.

Lorenzen NCJ. Determination of chlorophyll and phaeopigments: spectrophotometric esuation. Limnol Oceanogr.1967; 12 (2): 343-346.

Taude KS. An evaluation of factors affecting vertical distribution among recruits of Calanus finmarchicus in three adjacent high latitude localities. Hydrobiologia. 1988; 167: 115-126.

Wissel B, Ramacharan CW. Plasticity of vertical distribution of crustacean zooplankton in lakes with varying levels of water color. J Plankton Res. 2003; 25 (9): 1047-1057.

Zakaria HY, Hussien-Ahmed M, Flower R. Environmental assessment of spatial distribution of zooplankton community in Lake Manzalah. Egypt Acta Adriatica. 2007; 48 (2): 161-172.

Pagano M, Gaudy R, Thibault D, Lochet F. Vertical migration and feeding rythms of mesozooplanktonic organisms in the Rhone river plume areal (North-West Mediterranean sea). Estuarien Coast Shelf Sci. 1993; 37: 251-269.

Balvay G. Ségrégation spatial diurne du zooplancton dans le Leman. Hydroécol App. 1996; 8 (1-2): 143-153.

Cuilin HU, Shengrui W, Longgen G, Ping X. Effects of the proximal factors on the diel vertical migration of zooplankton in a plateau meso-eutrophic Lake Erhai, China. J Limno. 2014; 73 (2): 375-386.

Mokhliss K, Moncef M. Migrations nycthémérales des principales espèces de Cladocères de la retenue Al Massira, Maroc. SMETox Journal. 2018; 1 (2): 137- 147.

Chowdhury ST, Chattopadhyay J. Mathematical modeling of cascading migration in a tri-trophic food-chain system. J Biol Phys. 2013; 39 (3): 469-487.

Haupt F, Stockenreiter M, Baumgartner M, Boersma M, Stibor H. Daphnia diel vertical migration: implications beyondzooplankton. J Plankton Res. 2009; 31 (5): 515-524.

Lampert W, Taylor BE. Zooplankton grazing in a eutrophic lake: Implication of diel vertical migration. Ecology. 1985; 66: 68-82.

Leising AW, Franks PJS. Copepod vertical distribution within a spatially variable food source: a simple foraging-strategy model. J Plankton Res. 2000; 22 (6): 999-1024.

Williamson CE, Sanders RW, Moeller RE, Stutzman PL. Utilization of substance food resources for zooplankton: Implications for diel vertical migration theory. Limnol Oceanogr. 1996; 41: 224-233.

Bianchi D, Babbin AR, Galbraith ED. Enhancement of anammox by the excretion of diel vertical migrators.PNA. 2014; 111 (44): 15653-15658.

Małgorzata A. Spatial distribution of brood-bearing Females of limnetic species of Cladocera. Comptes Rendus Biologies. 2013; 336 (9): 457-465.

Cooke S, Williamson CE, Leech D, Boeing W, Torres L. Effects of temperature and ultraviolet radiation on diel vertical migration of freshwater crustacean zooplankton. Can J Fish Aquat Sc. 2008; 65: 1144-1152.

Helland IP, Freyho FJ, Kasprzak P, Mehner T. Temperature sensitivity of vertical distributions of zooplankton and planktivorous fish in a stratified lake. Oecologia. 2007; 151 (2): 322-330.

Khalifa N, El-Damhogy KE, Fishar MR, Amr M, Nasef M, Hegab H. Vertical distribution of zooplankton in Lake Nasser. Egypt J Aquat Res. 2015; 41 (2): 177-185.

Mokhliss K, Moncef M, Alaoui L. Étude des variations saisonnières du broutage zooplanctonique sur le peuplement phytoplanctonique de la retenue de barrage Al Massira (Maroc). Hydroécol App. 2001; 2: 175-191.