Research Article Open Access

Species Assemblages and Distribution of Dinoflagellate Cysts from three Estuaries Sediment’s of Makassar Strait, Eastern Indonesia

Nita Rukminasari1 and Akbar Tahir2
  • 1 Department of Fisheries, Faculty of Marine Science and Fisheries, Universitas Hasanuddin, Makassar, Indonesia
  • 2 Department of Marine Science, Faculty of Marine Science and Fisheries, Universitas Hasanuddin, Makassar, Indonesia

Abstract

Makassar Strait encompasses high fisheries resources and high biodiversity and primary productivity. Algae blooms often occur in these areas, but there is a lack of studies that have been carried out on HABs in these locations specifically determining the collection and abundance of dinocyst. The study aimed to determine species assemblages of dinoflagellate cysts from three estuaries of Makassar Strait. Sampling was conducted at three locations, i.e., Jeneberang, Maros and Pangkep Estuaries during July 2020. Each location of sampling consisted of 4 stations and 3 substations as a sampling replication. Variables that were measured in this study were dinoflagellate cysts abundance species assemblages and distribution. Results showed that there was no clear group of dinoflagellate cysts assemblages between locations, however dinoflagellate cyst assemblages from Jeneberang Estuary was significantly grouped. We recorded 48 dinoflagellate cysts species that belonged to 5 families, namely Goniodomaceae, Gonyaulacaceae, Gymnodiniacea, Peridiniaceae and Protoperidiniaceae. The dominant species of dinoflagellate cysts from Jeneberang Estuary was Scrippsiella crystallina, meanwhile the dominant dinoflagellate cyst from Maros and Pangkep Estuary was Gonyaulax verior and Pentapharsodinium tyrrhenicum, respectively. Scrippsiella trifida was a dinoflagellate cysts species was contributed to the dissimilarity of cyst assemblages between locations. We also found potential five toxic dinoflagellate cyst species. In conclusion, the dinoflagellate cysts species composition, diversity, species richness and cyst abundance was not significant difference between stations of all locations. The abundance of dinoflagellate cysts was significantly correlated by sediment grain size. All sampling sites has a potentially occurred of HABs due to the five potential cysts toxic and harmful species discovered.

OnLine Journal of Biological Sciences
Volume 21 No. 2, 2021, 232-244

DOI: https://doi.org/10.3844/ojbsci.2021.232.244

Submitted On: 21 September 2020 Published On: 8 May 2021

How to Cite: Rukminasari, N. & Tahir, A. (2021). Species Assemblages and Distribution of Dinoflagellate Cysts from three Estuaries Sediment’s of Makassar Strait, Eastern Indonesia. OnLine Journal of Biological Sciences, 21(2), 232-244. https://doi.org/10.3844/ojbsci.2021.232.244

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Keywords

  • Dinoflagellate Cysts
  • Species Assemblages and Dsistribution
  • Jeneberang
  • Maros and Pangkep Estuary and Makassar Strait