Year-to-year variation in the occurrence of some dominant phytoplankton species in Dutch coastal waters, 1973–1984

1992 ◽  
Vol 25 (3) ◽  
pp. 225-231 ◽  
Author(s):  
Marie Kat
Keyword(s):  
Coastal Waters ◽  
Phytoplankton Species

Phytoplankton species successions and their hydrological environment at a coastal station off Sydney

1986 ◽  
Vol 37 (3) ◽  
pp. 361 ◽  
Author(s):  
GM Hallegraeff ◽  
DD Reid
Keyword(s):  
Coastal Waters ◽  
Early Summer ◽  
Phytoplankton Species ◽  
Species Occurrence ◽  
Short Term ◽  
Coastal Station ◽  
Tropical Water ◽  
Diatom Blooms ◽  
Autumn And Winter ◽  
Water Species

Phytoplankton species occurrence was studied during 1978-1981 at a coastal station off Sydney and succession patterns were sought using polythetic agglomerative classification analysis. Three major phytoplankton categories were distinguished: (1) a large group of species (including most nanoplankton), which were present throughout the year; (2) a group of diatom species, which bloomed following episodic nutrient enrichments in spring, early summer, autumn and winter; (3) a group of warm-water species (e.g. Trichodesmium), which were associated with admixture of tropical water masses. Gross features of the phytoplankton cycle in these waters are related to the erratic flow pattern of the East Australian Current. However, clear short-term (4-14 weeks) species successions were evident within the spring and summer diatom blooms. These began with small diatoms (Asterionella, Leptocylindrus, Skeletonema, Thalassiosira) followed first by large diatoms (Detonula, Rhizosolenia, Stephanopyxis) and then by large dinoflagellates (Ceratium, Protoperidinium). This sequence is identical to that observed in coastal waters of other parts of the world. A phytoplankton checklist (280 species) for Sydney coastal waters is included as an appendix.

Challenges to identify phytoplankton species in coastal waters by remote sensing

2005 ◽  
Author(s):  
B. Lubac ◽  
H. Loisel ◽  
A. Poteau ◽  
X. Meriaux
Keyword(s):  
Remote Sensing ◽  
Coastal Waters ◽  
Phytoplankton Species

scholarly journals Abundance of Phytoplankton In The Coastal Waters of South Sumatera

2017 ◽  
Vol 22 (1) ◽  
pp. 31
Author(s):  
Riris Aryawati ◽  
Dietriech G. Bengen ◽  
Tri Prartono ◽  
Hilda Zulkifli
Keyword(s):  
Water Quality ◽  
Primary Production ◽  
Food Chain ◽  
Coastal Waters ◽  
Diversity Index ◽  
Mesh Size ◽  
Phytoplankton Species ◽  
Phytoplankton Abundance ◽  
Dominance Index

Phytoplankton in the ocean has an important role in forming the base of food chain,  responsible in primary production. Its abundance and number of phytoplankton species will indirectly affect the level of water’s fertility. This study aimed to determine the presence of phytoplankton as bio-indicators of water quality in terms of abundance, diversity index, uniformity index, and saprobic coefficient in coastal waters of South Sumatera. The study was conducted on May 2013 - February 2014, at ten stations during high and low tides. Phytoplankton samples were taken vertically using plankton nets,  cone-shaped with a diameter of 30 cm, length 100 cm and mesh size 30 μm. The study found 41 genera of phytoplankton, consisted of family Bacillariophyceae (26 genera), Dinophyceae (7 genera) Cyanophyceae (7 genera) and Chlorophyceae (1 genus). The highest number of genera was recorded while low tides in November (24 genera), and the lowest was on May while high tides (16 genera). The highest abundance of phytoplankton was recorded in August during high tides (2,68 x 107 cell.m-3), and the lowest was in May during high tides (6,59 x 105cell.m-3). The diversity index (H'),  the uniformity index (E), and the dominance index (D) ranged between 0,64–3; 0,15–0,71 and 0,15–0,83 respectively.  Keywords: phytoplankton, abundance, diversity index, South Sumatera coast.

scholarly journals Structure Of Phytoplankton Communities In Seagraas Ecosystem Of Kelurahan Tongkeina Bunaken Darat District

2019 ◽  
Vol 10 (2) ◽  
pp. 60
Author(s):  
Nikita Kekenusa ◽  
Rose O.S.E Mantiri ◽  
Gaspar D Manu
Keyword(s):  
Relative Density ◽  
Coastal Waters ◽  
Phytoplankton Community ◽  
Diversity Index ◽  
Mesh Size ◽  
Phytoplankton Species ◽  
Phytoplankton Community Structure ◽  
Dominance Index ◽  
Seagrass Ecosystem ◽  
Phytoplankton Communities

This research was conducted at 3 stations in the seagrass ecosystem of the Tongkeina coastal waters district of Bunaken Darat Manado on March 16, 2019, at 10:35 - 13:45 WITA. This study aims to know the types and community structures of phytoplankton in the Tongkeina seagrass ecosystem and its environmental conditions. The method used to collect the sample is sampling. Samples were taken using a plankton net measuring 20 cm in mouth diameter with a mesh size of 60 microns. Based on the results of observations obtained by the composition of phytoplankton species, namely 17 genera of 22 species in 3 classes namely Bacillariophyceae, Cyanophyceae, and Pyramimonadophyceae. The highest density of phytoplankton in Tongkeina waters is at Station 2 (0.360 cells / l) with the highest relative density of Chaetoceros sp. (19.10%). While the highest density of phytoplankton is found at Station 3 (0.516 cells / l) with the highest relative density of Melosira sp. (21.69%). The lowest Diversity Index at Station 2 (H '= 2,217) and the highest at station 3 (H' = 2,284). This shows that overall these waters have moderate diversity values. The lowest Uniformity Index at Station 1 (e = 0.858) and the highest at Station 2 (e = 0.924). This shows that overall these waters have a medium uniformity value. The lowest dominance index at Station 3 (C = 0.119) and the highest at Station 1 (C = 0.127). This shows that no species dominate the waters. The water conditions such as temperature, salinity, pH, and brightness still support the growth of phytoplankton.Keywords: phytoplankton, community structure, seagrass, Tongkeina ABSTRAKPenelitian ini dilakukan pada 3 stasiun di  perairan ekosistem lamun kelurahan  Tongkeina kecamatan Bunaken Darat pada tanggal 16 Maret 2019 pukul 10:35 – 13:45 WITA, dengan tujuan mengetahui jenis dan struktur komunitas fitoplankton yang ada di perairan ekosistem lamun  Tongkeina serta kondisi lingkungannya. Metode yang digunakan adalah Metode sampling. Sampel diambil dengan menggunakan plankton net berdiameter mulut berukuran 20 cm dengan mesh size 60 mikron. Berdasarkan hasil pengamatan diperoleh komposisi jenis fitoplankton  yakni 17 genus 22 spesies dalam 3 kelas yaitu Bacillariophyceae, Cyanophyceae, dan Pyramimonadophyceae.Kepadatan tertinggi fitoplankton di perairan Tongkeina terdapat pada Stasiun 2 (0.360 sel/l) dengan kepadatan relatif tertinggi Chaetoceros sp. (19.10%). Sedangkan  kepadatan fitoplankton tertinggi terdapat pada Stasiun 3 (0.516 sel/l) dengan kepadatan relatif tertinggi Melosira sp. (21.69%). Indeks Keanekaragaman terrendah pada Stasiun 2 (H’= 2.217) dan tertinggi pada stasiun 3 (H’= 2.284). Hal ini menunjukkan bahwa secara keseluruhan perairan ini memiliki nilai keanekaragaman sedang. Indeks Keseragaman terrendah pada Stasiun 1  (e= 0.858) dan tertinggi pada Stasiun 2  (e= 0.924). Hal ini menunjukkan bahwa secara keseluruhan perairan ini memiliki nilai keseragaman  sedang. Indeks Dominansi terrendah pada Stasiun 3 (C= 0.119) dan yang tertinggi pada Stasiun 1 (C= 0.127). Hal ini menunjukkan bahwa tidak ada jenis yang mendominasi perairan. Adapun kondisi perairannya seperti suhu, salinitas, pH dan kecerahan masih menunjang pertumbuhan fitoplankton.Kata Kunci :Fitoplankton, Struktur Komunitas, Lamun, Tongkeina,

Phytoplankton Species' Responses to Nutrient Changes in Experimental Enclosures and Coastal Waters

1982 ◽  
pp. 333-340 ◽  
Author(s):  
Masayuki Takahashi ◽  
Isao Koike ◽  
Akihiko Hattori ◽  
Kazuo Iseki ◽  
Paul K. Bienfang
Keyword(s):  
Coastal Waters ◽  
Phytoplankton Species ◽  
Species Responses ◽  
Nutrient Changes

Effects of UV-B radiation on growth and motility of four phytoplankton species

1990 ◽  
Vol 78 (4) ◽  
pp. 590-594 ◽  
Author(s):  
Nils G. A. Ekelund
Keyword(s):  
Phytoplankton Species

Regional Circulation Modeling of the Texas Coast and Inland Coastal Waters

2004 ◽  
Author(s):  
Mitchell E. Brown ◽  
Nicholas C. Kraus ◽  
James M. Kieslich
Keyword(s):  
Coastal Waters ◽  
Texas Coast ◽  
Regional Circulation ◽  
Circulation Modeling
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