Intense bloom of the diatom Hemidiscus hardmanianus (Greville) in relation to water quality and plankton communities in Tuticorin coast, Gulf of Mannar, India

Sathishkumar, R; Arumugam, S.; Sahu, Gouri; Mohanty, A. K.; Ramesh, T.; Khan, S. Ajmal

doi:10.1016/j.marpolbul.2020.111757

Cited by 12 publications

(2 citation statements)

References 29 publications

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“…Some species of this genera may survive for a longer period of time, for example, Protoperidinium depressum may survive up to 71 days in states of starvation or low food availability [40]. Smaller to larger diatoms and dinoflagellates are the primary food source for Protoperidinium, and their proliferation can cause a red tide of Protoperidinium [41].…”

Section: Biological Variablesmentioning

confidence: 99%

Spatio-Temporal Variation of Dinoflagellates of the Genera Ceratium (Schrank 1793) and Protoperidinium (Bergh 1881) in Relationship with Some Abiotic Variables in the Atlantic Coast of Kribi (South Region—Cameroon)

Edoa¹,

Takem²,

Medjo³

et al. 2022

OJMS

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A study to list Dinoflagellates species belonging to the genera Ceratium and Protoperidinium and some abiotic factors associated with them was carried out in the Kribi coast from February 2020 to February 2021 following a monthly sampling frequency. For the inventory, 60 L of water including 20 L on the surface, 20 L in the trophogen layer and 20 L in the tropholytic layer were filtered through a sieve of 20 μm and the retentate obtained was fixed whith lugol for identification and counting operations using an Olympus microscope. The morphotypes of the taxa were filmed using an Omax Toupvix eye camera. Physico-chemical results showed very good water oxygenation (89.35%), low Suspended Solid concentration (6.36 ± 4.71 mg/L), basic pH (8.53 ± 0.4 U.C), average salinity of 15.87 ± 3.1 g/L and conductivity around 26.73 ± 4.96 mS/cm. The average water temperature hovered around 29.51˚C ± 1.28˚C. The average values of nitrates and orthophosphates showed a progressive enrichment of the waters of the studied section with nitrate (1.52 ± 0.87 mg/L) and orthophosphate (1.84 ± 3.98 mg/L). This work allowed to identify 17 species of the genera Ceratium and 22 of Protoperidinium. The genera Protoperidinium was the most diverse while it was the taxa belonging to the genera Ceratium that had the highest densities. Ceratium furca was the only spatially and seasonally regular species with occurrence frequencies of How to cite this paper: Owona Edoa, F.D.,

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Section: Biological Variablesmentioning

confidence: 99%

Spatio-Temporal Variation of Dinoflagellates of the Genera Ceratium (Schrank 1793) and Protoperidinium (Bergh 1881) in Relationship with Some Abiotic Variables in the Atlantic Coast of Kribi (South Region—Cameroon)

Edoa¹,

Takem²,

Medjo³

et al. 2022

OJMS

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“…The species Oithona nana [ 39 ] is part of the most dominant planktonic copepods in the world’s oceans [ 40 , 41 ]. It is found in neritic and oceanic zones [ 29 , 30 , 31 , 32 , 33 , 42 , 43 ], with a preference for warm waters [ 44 ]. According to Berraho et al [ 29 ], Berraho et al [ 30 ], La-vaniegos et al [ 45 ], and Magouz et al [ 46 ], O. nana has a very varied diet and a low metabolic rate, all of which are advantageous qualities for rearing purposes.…”

Section: Introductionmentioning

confidence: 99%

Influence of Microalgae Diets on the Biological and Growth Parameters of Oithona nana (Copepoda: Cyclopoida)

Huanacuni

Pepe-Victoriano

Lora‐Vilchis

et al. 2021

Animals

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Several species of the planktonic free-living genus Oithona have been successfully used in the larviculture of marine fish and shrimp. However, few studies have been published that allow us to estimate the potential of Oithona nana culture under controlled conditions. This work evaluated the effect of the microalgae Isochrysis galbana and Chaetoceros calcitrans as single (200,000 cells/mL) and mixed diets (100,000 + 100,000 cells/mL) on population and individual growth, ingestion rate, number of spawnings, fertility, development time by stage, and sex ratio of O. nana. We cultured this copepod at 28 ± 0.5 °C, 35 PSU salinity, 125 lux, and 12:12 photoperiod. Results showed that diet had no effect on the final population level (6273–7966 ind/L) or on individual growth, nor on sex ratio, with less males than females. With C. calcitrans, O. nana had a higher filtration rate (57 ng C/ind/day). On the other hand, a mixed diet induced a higher number of spawns (0.4 events/day) and nauplii per spawn (23 ind). Similarly, a single or mixed diet, containing I. galbana, accelerated the development rate by 6.33–7.00 days. We concluded that O. nana can be cultured with both microalgae, indicating its potential use in an intensive system for production. However, more research is required to improve the productivity of O. nana rearing.

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Seasonal and Inter-annual Variations in Primary Productivity Proxies (POC and Chlorophyll-a): A Study from Kalpakkam Coast, Bay of Bengal

Mohanty,

Sahu,

Sathishkumar

et al. 2023

Dynamics of Planktonic Primary Productivity in the Indian Ocean

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Intense bloom of the diatom Hemidiscus hardmanianus (Greville) in relation to water quality and plankton communities in Tuticorin coast, Gulf of Mannar, India

Cited by 12 publications

References 29 publications

Spatio-Temporal Variation of Dinoflagellates of the Genera <i>Ceratium</i> (Schrank 1793) and <i>Protoperidinium</i> (Bergh 1881) in Relationship with Some Abiotic Variables in the Atlantic Coast of Kribi (South Region—Cameroon)

Spatio-Temporal Variation of Dinoflagellates of the Genera <i>Ceratium</i> (Schrank 1793) and <i>Protoperidinium</i> (Bergh 1881) in Relationship with Some Abiotic Variables in the Atlantic Coast of Kribi (South Region—Cameroon)

Influence of Microalgae Diets on the Biological and Growth Parameters of Oithona nana (Copepoda: Cyclopoida)

Seasonal and Inter-annual Variations in Primary Productivity Proxies (POC and Chlorophyll-a): A Study from Kalpakkam Coast, Bay of Bengal

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Intense bloom of the diatom Hemidiscus hardmanianus (Greville) in relation to water quality and plankton communities in Tuticorin coast, Gulf of Mannar, India

Cited by 12 publications

References 29 publications

Spatio-Temporal Variation of Dinoflagellates of the Genera &lt;i&gt;Ceratium&lt;/i&gt; (Schrank 1793) and &lt;i&gt;Protoperidinium&lt;/i&gt; (Bergh 1881) in Relationship with Some Abiotic Variables in the Atlantic Coast of Kribi (South Region—Cameroon)

Spatio-Temporal Variation of Dinoflagellates of the Genera &lt;i&gt;Ceratium&lt;/i&gt; (Schrank 1793) and &lt;i&gt;Protoperidinium&lt;/i&gt; (Bergh 1881) in Relationship with Some Abiotic Variables in the Atlantic Coast of Kribi (South Region—Cameroon)

Influence of Microalgae Diets on the Biological and Growth Parameters of Oithona nana (Copepoda: Cyclopoida)

Seasonal and Inter-annual Variations in Primary Productivity Proxies (POC and Chlorophyll-a): A Study from Kalpakkam Coast, Bay of Bengal

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Product

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Spatio-Temporal Variation of Dinoflagellates of the Genera <i>Ceratium</i> (Schrank 1793) and <i>Protoperidinium</i> (Bergh 1881) in Relationship with Some Abiotic Variables in the Atlantic Coast of Kribi (South Region—Cameroon)

Spatio-Temporal Variation of Dinoflagellates of the Genera <i>Ceratium</i> (Schrank 1793) and <i>Protoperidinium</i> (Bergh 1881) in Relationship with Some Abiotic Variables in the Atlantic Coast of Kribi (South Region—Cameroon)