SDRP Journal of Earth Sciences & Environmental Studies

Coupling of phytoplankton community structure to nutrients, ciliate and zooplankton around the Kneiss Islands (golfe de gabes, Central Mediterranean Sea)

Co-Authors

Amira REKIK1, Habib AYADI1, Jannet ELLOUMI1*
1University of Sfax, Faculty of Sciences of Sfax, Department of Sciences of life. Research Unity UR/11ES72 Biodiversity and Aquatic Ecosystem. Street Soukra Km 3.5 - BP 1171- CP 3000 Sfax, Tunisia.
Corresponding author: Jannet ELLOUMI
E-mail: jannetelloumi@yahoo.fr
Phone: 00216 22 74 11 55
Fax: 00216 74 27 44 37

Citation

Jannet ELLOUMI, Coupling of phytoplankton community structure to nutrients, ciliate and zooplankton around the Kneiss Islands (golfe de gabes, Central Mediterranean Sea)(2017)SDRP Journal of Earth Sciences & Environmental Studies 2(2)

Abstract

Background: To investigate the structural diversity of the planktonic phytoplankton through summer 2009 and summer 2010, to identify the role of the main abiotic factors that determine the phytoplankton community structure and functioning and to study the summer spatial distribution of phytoplankton in relation to its potential predators such as ciliate and zooplankton.

Methods: Phytoplankton and ciliate samples were analysed under an inverted microscope after 24 to 48 h settling using the Utermöhl method. Zooplankton enumeration was performed under a vertically mounted deep-focus dissecting microscope.

Results: Our results demonstrated a striking difference among years is seen in suspended matter concentrations with lower values in summer 2010 (47.37 ± 23.12 mg l-1), contrasting with the higher suspended matter values in summer 2009 (92.88 ± 7.15 mg l-1). A total of 50 phytoplankton taxa identified during this study of three different algal classes (cyanobacteriae, diatoms and dinoflagellate). We found: first, in summer 2010, the phytoplankton abundance was about 3 times that in summer 2009, second, a high abundance of cyanobacteriae (43 % of total phytoplankton) and diatoms (54 % of total phytoplankton) in summer 2009 and 2010 respectively. In summer 2009, we observed a cyanobacteriae growth with dominant opportunistic and nitrogen-fixing Oscilatoria sp. Dominance of the benthic and large diatoms genus such as Navicula and Nitzschia has been reported in summer 2010. Concerning dinoflagellates, they were strongly dominated by mixotrophic and heterotrophic dinoflagellates species, like Polykrikos kofoidii, Ceratium lineatum, Protoperidinium steinii.

Conclusions: This study indicates that the hydrographic properties abiotic factors of the coast area around Kneiss Islands are associated with the spatial and inter-annual variations of the phytoplankton.

References

  1. Jeong HJ, Yoo YD, Kim JS, Seong KA, Kang NS, Kim TH (2010). "Growth, feeding and ecological roles of the mixotrophic and heterotrophic dinoflagellates in marine planktonic food webs." Ocean Science Journal 45: 65-91.

    View Article           

  2. Hamza F, Hammouda A, Selmi S (2015). "Species richness patterns of waterbirds wintering in the gulf of Gab?s in relation to habitat and anthropogenic features." Estuarine, Coastal and Shelf Science 165: 254-260.

    View Article           

  3. Hamza A (2003). "Le statut du phytoplancton dans le Golfe de Gab?s". Th?se de Doctorat en sciences biologiques. Facult? des sciences de Sfax. INSTM.

  4. Gueddari M, Oueslati A (2002). "Le site de Kneiss, Tunisie: g?omorphologie et aptitudes ? l'am?nagement. In: Recherche de Base pour une Gestion Durable des Ecosyst?mes Sensibles C?tiers de la M?diterran?e." (F. Scapini, ed), Istituto Agronomico per l'Oltremare : Italie, p. 63-71.

  5. Gribblel KE, Nolan G, Anderson DM (2007). "Biodiversity, biogeography and potential trophic impact of Protoperidinium spp. (Dinophyceae) off the southwestern coast of Ireland." Journal of Plankton Research 29: 931-47.

    View Article           

  6. Frontier S (1973). "Etude statistique de la dispersion du zooplancton." Journal of Experimental Marine Biology and Ecology 12: 229-262. 90056-7

    View Article           

  7. Galil BS (2000). "A sea under siege: alien species in the Mediterranean." Biological Invasions 2: 177-186.

    View Article           

  8. Feki M, Brahim MB, Feki-Sahnoun W, Mahfoudi M, Sammari C, Hamza A (2016). "Seasonal and daily fluctuation of dinoflagellates during spring tide periods in Kerkennah Islands (Southern coast of Tunisia)." Life and Environment 66: 1-12.

  9. Feki-Sahnoun W, Hamza A, Mahfoudi M, Rebai A, Bel Hassen M (2014). "Long-term microphytoplankton variability patterns using multivariate analyses: ecological and management implications." Environmental Science and Pollution Research : DOI: 10.1007/s11356-014-3009-2.

    View Article           

  10. Feki-Sahnoun W, Hamza A, Frossard V, Abdennadher M, Hannachi I, Jacquot M (2013). "What are the potential drivers of blooms of the toxic dinoflagellate Karenia selliformis? A 10-year study in the Gulf of Gabes, Tunisia, southwestern Mediterranean Sea." Harmful Algae 23: 8-18.

    View Article           

  11. Elloumi J, Drira Z, Guermazi W, Hamza A, Ayadi H (2015). "Space-time variation of ciliates related to environmental factors in 15 nearshore stations of the Gulf of Gabes (Tunisia, Eastern Mediterranean Sea)." Mediterranean Marine Science: DOI: . https://doi.org/10.12681/mms.792

    View Article           

  12. Dol?dec S, Chessel D (1989). "Rythmes saisonniers et composantes stationnelles en milieu aquatiqueII. Prise en compte et ?limination d'effets dans un tableau faunistique." Acta oecologica Oecologia generalis 10: 207?332.

  13. Bourrelly P (1985). "Introduction to systematic. Volume II. The blue and red algae." Paris: Edit? par Soci?t? Nouvelle des Editions Boub?e; p. 450.

  14. Davies OA, Ugwumba OA (2013). "Tidal influence on nutrients status and phytoplankton population of Okpoka Creek, upper Bonny Estuary, Nigeria." Journal of Marine Biology : DOI: 10.1155/2013/684739.

    View Article           

  15. Bonsdorff E, Blomqvist E, Mattila J, Norkko A (1997). "Long term changes and coastal eutrophication. Examples from the Aland Island and the Archipelago Sea, northern Baltic Sea." Oceanologica Acta 20: 319?329.

  16. Ben Salem Z, Drira Z, Ayadi H. What factors drive the variations of phytoplankton, ciliate and mesozooplankton communities in the polluted southern coast of Sfax, Tunisia? Environ Sci Pollut Res 2015; doi: 10.1007/s11356-015-4416-8.

    View Article           

  17. Ben Ltaief T, Drira Z, Hannachi I, Bel Hassen M, Hamza A, Pagano M (2015). "What are the factors leading to the success of small planktonic copepods in the Gulf of Gabes, Tunisia?" Journal of the Marine Biological Association UK 95: 747?761.

    View Article           

  18. Ben Brahim M, Feki M, Feki-Sahnoun W, Mahfoudi M, Hamza A (2015b). "Factor driving heterotrophic dinoflagellate in relation to environment conditions in Kerkennah Islands (eastern coast of Tunisa)." Journal of Coastal Life Medecine 3: 930-4.

  19. Ben Brahim M, Feki-Sahnoun W, Feki M, Mahfoudi M, Hamza A (2015a) "Seasonal and daily fluctuation of diatoms during spring tide periods in Kerkennah Islands." Journal of Coastal Life Medecine 3: 446-452.

  20. Bel Hassen M, Drira Z, Hamza A, Ayadi H, Akrout F, Issaoui H (2008). "Summer phytoplankton pigments and community composition related to water mass properties in the Gulf of Gabes." Estuarine, Coastal and Shelf Science 77: 645?656.

    View Article           

  21. Bali M, Gueddari M (2011). "Les chenaux de mar?e autour des ?les de Kneiss, Tunisie: s?dimentologie et ?volution." Hydrological Sciences Journal 56: 498-506.

    View Article           

  22. Anderson DM, Alpermann TJ, Cembella AD, Collos Y, Masseret E, Montresor M (2012). "The globally distributed genus Alexandrium: Multifaceted roles in marine ecosystems and impacts on human health." Harmful Algae 14: 10-35. PMid:22308102 PMCid:PMC3269821

    View Article      PubMed/NCBI     

  23. Aleya L (1992). "The seasonal succession of phytoplankton in a eutrophic lake through the coupling of biochemical composition of particulates, metabolic parameters and environmental conditions." Archiv fur Hydrobiologie 124: 69-88.

  24. Abdennadher A, Ramirez F, Romdhane MS, Ruiz LJ, Sanpera C (2010). "Biomonitoring of Coastal Areas in Tunisia: Stable Isotope and Trace Element Analysis in the Yellow-Legged Gull." Marine Pollution Bulletin 60: 440- 447. PMid:19896145

    View Article      PubMed/NCBI     

  25. Liu X, Huang B, Huang Q, Wang L, Ni X, Tang Q (2015). "Seasonal phytoplankton response to physical processes in the southern Yellow Sea." Journal of Sea Research 95: 45-55.

    View Article           

  26. Mosbahi N, Boudaya L, Dauvin JC, Neifar N (2015). "Spatial Distribution and Abundance of Intertidal Benthic Macrofauna in the Kneiss Islands (Gulf of Gab?s, Tunisia)." Cahiers de Biologie Marine 56: 319-328.

  27. Mosbahi N, Pezy JP, Dauvin JC, Neifar L (2016a). "Short-Term Impact of Bait Digging on Intertidal Macrofauna of Tidal Mudflats around the Kneiss Islands (Gulf of Gab?s, Tunisia)." Aquatic Living Resources 28: 111-118.

    View Article           

  28. Mosbahi N, Pezy JP, Dauvin JC, Neifar L (2016b). "Spatial and Temporal Structures of the Macrozoobenthos from the Intertidal Zone of the Kneiss Islands (Central Mediterranean Sea)." Open Journal of Marine Science 6: 223-237.

    View Article           

  29. M'Rabet R (1995). "Les engins de p?che et les ressources halieutiques." Notes de l'Institut National Scientifique et Technique d'Oc?anographie et de P?che de Salammb? 6: 1-29.

  30. Nausch M, Nausch G, Wasmund N, Nagel K (2008). "Phosphorus pool variations and their relation to cyanobacteria development in the Baltic Sea: a three-year study." Journal of Marine Systems 71: 99?111

    View Article           

  31. Rekik A, Drira Z, Guermazi W, Elloumi J, Maalej S, Aleya L, Ayadi H (2012). "Impacts of an uncontrolled phosphogypsum dumpsite on summer distribution of phytoplankton, copepods and ciliates in relation to abiotic variables along the near-shore of the southwestern Mediterranean coast." Marine Pollution Bulletin 64: 336-346. PMid:22154276

    View Article      PubMed/NCBI     

  32. Rekik A, Maalej S, Ayadi H, Aleya L (2013a). "Restoration impact of an uncontrolled phosphogypsum dump site on the seasonal distribution of abiotic variables, phytoplankton and zooplankton along the near shore of the south-western Mediterranean coast." Environmental Science and Pollution Research: DOI: org/ 10.1007/s11356-012-1297-y.

  33. Rekik A, Denis M, Aleya L, Maalej S, Ayadi H (2013b). "Spring plankton community structure and distribution in the north and south coasts of Sfax (Tunisia) after north coast restoration." Marine Pollution Bulletin 67: 82-93. PMid:23260651

    View Article      PubMed/NCBI     

  34. Rekik A, Denis M, Maalej S, Ayadi H (2015a). "Spatial and seasonal variability of pico-, nano- and microphytoplankton at the water-sediment interface in the north coast of Sfax, Eastern Mediterranean Sea." Environmental Science and Pollution Research: DOI: 10.1007/s11356-015-4811-1.

    View Article           

  35. Rekik A, Denis M, Maalej S, Ayadi H (2015b). "Planktonic ciliates in relation to abiotic variables on the north coast of Sfax after environmental restoration: species composition, and abundance-biomass seasonal variation." Journal of oceanography, research and data 8: 1-16.

  36. Rekik A, Elloumi J, Charri D, Ayadi H (2015c). "Phytoplankton and ciliate communities' structure and distribution in a stressed area of the south coast of Sfax, Tunisia (Eastern Mediterranean Sea)." Marine and Freshwater Research: DOI: org/10.1071/MF15057.

  37. Rekik A, Ben Salem Z, Ayadi H, Elloumi J (2016). "Spring phytoplankton variability along a south coast of Sfax at the water-sediment interface (Tunisia, Eastern Mediterranean Sea)." Journal of Coastal Life Medicine 4: 121-127.

    View Article           

  38. Roe KL, Barbeau K, Mann EL, Haygood MG (2012). "Acquisition of iron by Trichodesmium and associated bacteria in culture." Environmental Microbiology 14: 1681-1695. PMid:22118517

    View Article      PubMed/NCBI     

  39. Rubin M, Berman-Frank I, Shaked Y (2011). "Dust and mineral iron utilization by the marine diazotroph Trichodesmium." Nature Geoscience 4: 529-534.

    View Article           

  40. Sammari C, Koutitonsky VG, Moussa M (2006). "Sea level variability and tidal resonance in the Gulf of Gab?s, Tunisia." Continental Shelf Research 26: 338-350.

    View Article           

  41. Sherr EB, Sherr BF (2007). "Heterotrophic dinoflagellates: a significant component of microzooplankton biomass and major grazers of diatoms in the sea." Marine Ecology Progress Series 352: 187-197.

    View Article           

  42. Song X, Huang L, Zhang J, Huang X, Zhang J, Yin J (2004). "Variation of phytoplankton biomass and primary production in Daya Bay during spring and summer." Marine Pollution Bulletin 49: 1036?1044. PMid:15556190

    View Article      PubMed/NCBI     

  43. Uterm?hl H (1958). "Toward the improvement of the quantitative phytoplankton method". Deutsch, Mitteilungen Int Vereiningung Limnology: 1-38.

  44. Wang XL, Lu YL, He GZ, Han JY, Wang TY (2007). "Exploration of relationships between phytoplankton biomass and related environmental variables using multivariate statistic analysis in a eutrophic shallow lake: a 5-year study." Journal of Environmental Sciences 19: 920-927. 60152-1

    View Article           

  45. Welker C, Sdrigotti E, Covelli S, Faganeli J (2002). Microphytobenthos in the Gulf of Trieste (Northern Adriatic Sea): relationship with labile sedimentary organic matter and nutrients. Estuarine, Coastal and Shelf Science 55: 259-273.

    View Article           

  46. Ye Y, Christophe V?lker C, Bracher A, Taylor B, Dieter A (2012). "Environmental controls on N2 fixation by Trichodesmium in the tropical eastern North Atlantic Ocean?a model-based study." Deep-Sea Research Part I: DOI:10.1016/ j.dsr.2012.01.004.

  47. Zervoudaki S, Christou ED, Nielsen TG, Siokou I, Frangou G, Assimakopoulou G, Giannakourou A (2007). "The importance of small-sized copepods in a frontal area of the Aegean Sea." Journal of Plankton Research 29: 317-338.

    View Article           

  48. Abdennadher A, Ramirez F, Romdhane MS, Ruiz LJ, Sanpera C (2010). "Biomonitoring of Coastal Areas in Tunisia: Stable Isotope and Trace Element Analysis in the Yellow-Legged Gull." Marine Pollution Bulletin 60: 440- 447. PMid:19896145

    View Article      PubMed/NCBI     

  49. Aleya L (1992). "The seasonal succession of phytoplankton in a eutrophic lake through the coupling of biochemical composition of particulates, metabolic parameters and environmental conditions." Archiv fur Hydrobiologie 124: 69-88.

  50. Anderson DM, Alpermann TJ, Cembella AD, Collos Y, Masseret E, Montresor M (2012). "The globally distributed genus Alexandrium: Multifaceted roles in marine ecosystems and impacts on human health." Harmful Algae 14: 10-35. PMid:22308102 PMCid:PMC3269821

    View Article      PubMed/NCBI     

  51. Bali M, Gueddari M (2011). "Les chenaux de mar?e autour des ?les de Kneiss, Tunisie: s?dimentologie et ?volution." Hydrological Sciences Journal 56: 498-506.

    View Article           

  52. Bel Hassen M, Drira Z, Hamza A, Ayadi H, Akrout F, Issaoui H (2008). "Summer phytoplankton pigments and community composition related to water mass properties in the Gulf of Gabes." Estuarine, Coastal and Shelf Science 77: 645?656.

    View Article           

  53. Ben Brahim M, Feki-Sahnoun W, Feki M, Mahfoudi M, Hamza A (2015a) "Seasonal and daily fluctuation of diatoms during spring tide periods in Kerkennah Islands." Journal of Coastal Life Medecine 3: 446-452.

  54. Ben Brahim M, Feki M, Feki-Sahnoun W, Mahfoudi M, Hamza A (2015b). "Factor driving heterotrophic dinoflagellate in relation to environment conditions in Kerkennah Islands (eastern coast of Tunisa)." Journal of Coastal Life Medecine 3: 930-4.

  55. Ben Ltaief T, Drira Z, Hannachi I, Bel Hassen M, Hamza A, Pagano M (2015). "What are the factors leading to the success of small planktonic copepods in the Gulf of Gabes, Tunisia?" Journal of the Marine Biological Association UK 95: 747?761.

    View Article           

  56. Ben Salem Z, Drira Z, Ayadi H. What factors drive the variations of phytoplankton, ciliate and mesozooplankton communities in the polluted southern coast of Sfax, Tunisia? Environ Sci Pollut Res 2015; doi: 10.1007/s11356-015-4416-8.

    View Article           

  57. Bonsdorff E, Blomqvist E, Mattila J, Norkko A (1997). "Long term changes and coastal eutrophication. Examples from the Aland Island and the Archipelago Sea, northern Baltic Sea." Oceanologica Acta 20: 319?329.

  58. Bourrelly P (1985). "Introduction to systematic. Volume II. The blue and red algae." Paris: Edit? par Soci?t? Nouvelle des Editions Boub?e; p. 450.

  59. Davies OA, Ugwumba OA (2013). "Tidal influence on nutrients status and phytoplankton population of Okpoka Creek, upper Bonny Estuary, Nigeria." Journal of Marine Biology : DOI: 10.1155/2013/684739.

    View Article           

  60. Dol?dec S, Chessel D (1989). "Rythmes saisonniers et composantes stationnelles en milieu aquatiqueII. Prise en compte et ?limination d'effets dans un tableau faunistique." Acta oecologica Oecologia generalis 10: 207?332.

  61. Elloumi J, Drira Z, Guermazi W, Hamza A, Ayadi H (2015). "Space-time variation of ciliates related to environmental factors in 15 nearshore stations of the Gulf of Gabes (Tunisia, Eastern Mediterranean Sea)." Mediterranean Marine Science: DOI: . https://doi.org/10.12681/mms.792

    View Article           

  62. Feki-Sahnoun W, Hamza A, Frossard V, Abdennadher M, Hannachi I, Jacquot M (2013). "What are the potential drivers of blooms of the toxic dinoflagellate Karenia selliformis? A 10-year study in the Gulf of Gabes, Tunisia, southwestern Mediterranean Sea." Harmful Algae 23: 8-18.

    View Article           

  63. Feki-Sahnoun W, Hamza A, Mahfoudi M, Rebai A, Bel Hassen M (2014). "Long-term microphytoplankton variability patterns using multivariate analyses: ecological and management implications." Environmental Science and Pollution Research : DOI: 10.1007/s11356-014-3009-2.

    View Article           

  64. Feki M, Brahim MB, Feki-Sahnoun W, Mahfoudi M, Sammari C, Hamza A (2016). "Seasonal and daily fluctuation of dinoflagellates during spring tide periods in Kerkennah Islands (Southern coast of Tunisia)." Life and Environment 66: 1-12.

  65. Frontier S (1973). "Etude statistique de la dispersion du zooplancton." Journal of Experimental Marine Biology and Ecology 12: 229-262. 90056-7

    View Article           

  66. Galil BS (2000). "A sea under siege: alien species in the Mediterranean." Biological Invasions 2: 177-186.

    View Article           

  67. Gribblel KE, Nolan G, Anderson DM (2007). "Biodiversity, biogeography and potential trophic impact of Protoperidinium spp. (Dinophyceae) off the southwestern coast of Ireland." Journal of Plankton Research 29: 931-47.

    View Article           

  68. Gueddari M, Oueslati A (2002). "Le site de Kneiss, Tunisie: g?omorphologie et aptitudes ? l'am?nagement. In: Recherche de Base pour une Gestion Durable des Ecosyst?mes Sensibles C?tiers de la M?diterran?e." (F. Scapini, ed), Istituto Agronomico per l'Oltremare : Italie, p. 63-71.

  69. Hamza A (2003). "Le statut du phytoplancton dans le Golfe de Gab?s". Th?se de Doctorat en sciences biologiques. Facult? des sciences de Sfax. INSTM.

  70. Hamza F, Hammouda A, Selmi S (2015). "Species richness patterns of waterbirds wintering in the gulf of Gab?s in relation to habitat and anthropogenic features." Estuarine, Coastal and Shelf Science 165: 254-260.

    View Article           

  71. Jeong HJ, Yoo YD, Kim JS, Seong KA, Kang NS, Kim TH (2010). "Growth, feeding and ecological roles of the mixotrophic and heterotrophic dinoflagellates in marine planktonic food webs." Ocean Science Journal 45: 65-91.

    View Article           

  72. Liu X, Huang B, Huang Q, Wang L, Ni X, Tang Q (2015). "Seasonal phytoplankton response to physical processes in the southern Yellow Sea." Journal of Sea Research 95: 45-55.

    View Article           

  73. Mosbahi N, Boudaya L, Dauvin JC, Neifar N (2015). "Spatial Distribution and Abundance of Intertidal Benthic Macrofauna in the Kneiss Islands (Gulf of Gab?s, Tunisia)." Cahiers de Biologie Marine 56: 319-328.

  74. Mosbahi N, Pezy JP, Dauvin JC, Neifar L (2016a). "Short-Term Impact of Bait Digging on Intertidal Macrofauna of Tidal Mudflats around the Kneiss Islands (Gulf of Gab?s, Tunisia)." Aquatic Living Resources 28: 111-118.

    View Article           

  75. Mosbahi N, Pezy JP, Dauvin JC, Neifar L (2016b). "Spatial and Temporal Structures of the Macrozoobenthos from the Intertidal Zone of the Kneiss Islands (Central Mediterranean Sea)." Open Journal of Marine Science 6: 223-237.

    View Article           

  76. M'Rabet R (1995). "Les engins de p?che et les ressources halieutiques." Notes de l'Institut National Scientifique et Technique d'Oc?anographie et de P?che de Salammb? 6: 1-29.

  77. Nausch M, Nausch G, Wasmund N, Nagel K (2008). "Phosphorus pool variations and their relation to cyanobacteria development in the Baltic Sea: a three-year study." Journal of Marine Systems 71: 99?111

    View Article           

  78. Rekik A, Drira Z, Guermazi W, Elloumi J, Maalej S, Aleya L, Ayadi H (2012). "Impacts of an uncontrolled phosphogypsum dumpsite on summer distribution of phytoplankton, copepods and ciliates in relation to abiotic variables along the near-shore of the southwestern Mediterranean coast." Marine Pollution Bulletin 64: 336-346. PMid:22154276

    View Article      PubMed/NCBI     

  79. Rekik A, Maalej S, Ayadi H, Aleya L (2013a). "Restoration impact of an uncontrolled phosphogypsum dump site on the seasonal distribution of abiotic variables, phytoplankton and zooplankton along the near shore of the south-western Mediterranean coast." Environmental Science and Pollution Research: DOI: org/ 10.1007/s11356-012-1297-y.

  80. Rekik A, Denis M, Aleya L, Maalej S, Ayadi H (2013b). "Spring plankton community structure and distribution in the north and south coasts of Sfax (Tunisia) after north coast restoration." Marine Pollution Bulletin 67: 82-93. PMid:23260651

    View Article      PubMed/NCBI     

  81. Rekik A, Denis M, Maalej S, Ayadi H (2015a). "Spatial and seasonal variability of pico-, nano- and microphytoplankton at the water-sediment interface in the north coast of Sfax, Eastern Mediterranean Sea." Environmental Science and Pollution Research: DOI: 10.1007/s11356-015-4811-1.

    View Article           

  82. Rekik A, Denis M, Maalej S, Ayadi H (2015b). "Planktonic ciliates in relation to abiotic variables on the north coast of Sfax after environmental restoration: species composition, and abundance-biomass seasonal variation." Journal of oceanography, research and data 8: 1-16.

  83. Rekik A, Elloumi J, Charri D, Ayadi H (2015c). "Phytoplankton and ciliate communities' structure and distribution in a stressed area of the south coast of Sfax, Tunisia (Eastern Mediterranean Sea)." Marine and Freshwater Research: DOI: org/10.1071/MF15057.

  84. Rekik A, Ben Salem Z, Ayadi H, Elloumi J (2016). "Spring phytoplankton variability along a south coast of Sfax at the water-sediment interface (Tunisia, Eastern Mediterranean Sea)." Journal of Coastal Life Medicine 4: 121-127.

    View Article           

  85. Roe KL, Barbeau K, Mann EL, Haygood MG (2012). "Acquisition of iron by Trichodesmium and associated bacteria in culture." Environmental Microbiology 14: 1681-1695. PMid:22118517

    View Article      PubMed/NCBI     

  86. Rubin M, Berman-Frank I, Shaked Y (2011). "Dust and mineral iron utilization by the marine diazotroph Trichodesmium." Nature Geoscience 4: 529-534.

    View Article           

  87. Sammari C, Koutitonsky VG, Moussa M (2006). "Sea level variability and tidal resonance in the Gulf of Gab?s, Tunisia." Continental Shelf Research 26: 338-350.

    View Article           

  88. Sherr EB, Sherr BF (2007). "Heterotrophic dinoflagellates: a significant component of microzooplankton biomass and major grazers of diatoms in the sea." Marine Ecology Progress Series 352: 187-197.

    View Article           

  89. Song X, Huang L, Zhang J, Huang X, Zhang J, Yin J (2004). "Variation of phytoplankton biomass and primary production in Daya Bay during spring and summer." Marine Pollution Bulletin 49: 1036?1044. PMid:15556190

    View Article      PubMed/NCBI     

  90. Uterm?hl H (1958). "Toward the improvement of the quantitative phytoplankton method". Deutsch, Mitteilungen Int Vereiningung Limnology: 1-38.

  91. Wang XL, Lu YL, He GZ, Han JY, Wang TY (2007). "Exploration of relationships between phytoplankton biomass and related environmental variables using multivariate statistic analysis in a eutrophic shallow lake: a 5-year study." Journal of Environmental Sciences 19: 920-927. 60152-1

    View Article           

  92. Welker C, Sdrigotti E, Covelli S, Faganeli J (2002). Microphytobenthos in the Gulf of Trieste (Northern Adriatic Sea): relationship with labile sedimentary organic matter and nutrients. Estuarine, Coastal and Shelf Science 55: 259-273.

    View Article           

  93. Ye Y, Christophe V?lker C, Bracher A, Taylor B, Dieter A (2012). "Environmental controls on N2 fixation by Trichodesmium in the tropical eastern North Atlantic Ocean?a model-based study." Deep-Sea Research Part I: DOI:10.1016/ j.dsr.2012.01.004.

  94. Zervoudaki S, Christou ED, Nielsen TG, Siokou I, Frangou G, Assimakopoulou G, Giannakourou A (2007). "The importance of small-sized copepods in a frontal area of the Aegean Sea." Journal of Plankton Research 29: 317-338.

    View Article           

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