The Abundance of Gonyaulax polygramma and Chaetoceros sp. Causing Blooming in Ambon Bay, Maluku

This study examines the first occurrence of non-toxic dinoflagellate blooming of Gonyaulax polygramma and Chaetoceros sp in Ambon Bay that occurred for almost three weeks in January 2019 and it caused the watercolor became red brown. The objective of this study was to identified phytoplankton specie...

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Main Authors: Irma Kesaulya, Delta R. Rumohoira, A. Saravanakumar
Format: Article
Language:English
Published: Diponegoro University; Association of Indonesian Coastal Management Experts 2022-02-01
Series:Ilmu Kelautan
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Online Access:https://ejournal.undip.ac.id/index.php/ijms/article/view/35689
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author Irma Kesaulya
Delta R. Rumohoira
A. Saravanakumar
author_facet Irma Kesaulya
Delta R. Rumohoira
A. Saravanakumar
author_sort Irma Kesaulya
collection DOAJ
description This study examines the first occurrence of non-toxic dinoflagellate blooming of Gonyaulax polygramma and Chaetoceros sp in Ambon Bay that occurred for almost three weeks in January 2019 and it caused the watercolor became red brown. The objective of this study was to identified phytoplankton species and their abundance that cause red tide in the Inner Ambon bay.  Phytoplankton samples were collected, temperature, salinity and Secchi depth were measured simultaneously on the 11th and 21st January 2019 (nortwest monsoon) at fifteen sampling stations in Inner Ambon Bay. The results show that the maximum abundance of Gonyaulax polygramma, Chaetoceros affinis, C. danicus and C. decipiens were found in the greatest concentration up to 20×109, 9.0x106, 5.8x106 and 3.8x105 cells.L-1, respectively. They were found either in the form of a single cell or in chains. The very high abundance of cells of those species made the waters become red brown but there was no reports of fish killed during this red tide phenomena. This is the first time report of blooming phytoplankton Gonyaulax polygramma, Chaetoceros affinis, C. danicus and C. decipiens occurred in Ambon bay during the dry season where the recorded waters temperature and salinity ranged from 30-32ºC and 29-33 psu, respectively and the secchi depths ranged from 2 to 6m.
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spelling doaj-art-15736aea02bf41f09ca52a85f0c5a5d72025-08-20T03:29:02ZengDiponegoro University; Association of Indonesian Coastal Management ExpertsIlmu Kelautan0853-72912406-75982022-02-01271131910.14710/ik.ijms.27.1.13-1919909The Abundance of Gonyaulax polygramma and Chaetoceros sp. Causing Blooming in Ambon Bay, MalukuIrma Kesaulya0https://orcid.org/0000-0002-0937-2068Delta R. Rumohoira1A. Saravanakumar2Marine Science Department, Faculty of Fisheries and Marine Science, Pattimura University, IndonesiaMarine Science Department, Faculty of Fisheries and Marine Science, Pattimura University, IndonesiaCentre of Advanced Study in Marine Biology, Faculty of Marine Science, Annamalai University, IndiaThis study examines the first occurrence of non-toxic dinoflagellate blooming of Gonyaulax polygramma and Chaetoceros sp in Ambon Bay that occurred for almost three weeks in January 2019 and it caused the watercolor became red brown. The objective of this study was to identified phytoplankton species and their abundance that cause red tide in the Inner Ambon bay.  Phytoplankton samples were collected, temperature, salinity and Secchi depth were measured simultaneously on the 11th and 21st January 2019 (nortwest monsoon) at fifteen sampling stations in Inner Ambon Bay. The results show that the maximum abundance of Gonyaulax polygramma, Chaetoceros affinis, C. danicus and C. decipiens were found in the greatest concentration up to 20×109, 9.0x106, 5.8x106 and 3.8x105 cells.L-1, respectively. They were found either in the form of a single cell or in chains. The very high abundance of cells of those species made the waters become red brown but there was no reports of fish killed during this red tide phenomena. This is the first time report of blooming phytoplankton Gonyaulax polygramma, Chaetoceros affinis, C. danicus and C. decipiens occurred in Ambon bay during the dry season where the recorded waters temperature and salinity ranged from 30-32ºC and 29-33 psu, respectively and the secchi depths ranged from 2 to 6m.https://ejournal.undip.ac.id/index.php/ijms/article/view/35689gonyaulax polygrammachaetoceros spambon bayred tideblooming
spellingShingle Irma Kesaulya
Delta R. Rumohoira
A. Saravanakumar
The Abundance of Gonyaulax polygramma and Chaetoceros sp. Causing Blooming in Ambon Bay, Maluku
Ilmu Kelautan
gonyaulax polygramma
chaetoceros sp
ambon bay
red tide
blooming
title The Abundance of Gonyaulax polygramma and Chaetoceros sp. Causing Blooming in Ambon Bay, Maluku
title_full The Abundance of Gonyaulax polygramma and Chaetoceros sp. Causing Blooming in Ambon Bay, Maluku
title_fullStr The Abundance of Gonyaulax polygramma and Chaetoceros sp. Causing Blooming in Ambon Bay, Maluku
title_full_unstemmed The Abundance of Gonyaulax polygramma and Chaetoceros sp. Causing Blooming in Ambon Bay, Maluku
title_short The Abundance of Gonyaulax polygramma and Chaetoceros sp. Causing Blooming in Ambon Bay, Maluku
title_sort abundance of gonyaulax polygramma and chaetoceros sp causing blooming in ambon bay maluku
topic gonyaulax polygramma
chaetoceros sp
ambon bay
red tide
blooming
url https://ejournal.undip.ac.id/index.php/ijms/article/view/35689
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