Carbon and nitrogen content of Noctiluca scintillans in the Seto Inland Sea, Japan

Tada, Kuninao; Pithakpol, Santiwat; Yano, Rumiko; Montani, Shigeru

doi:10.1093/plankt/22.6.1203

Cited by 47 publications

(42 citation statements)

References 13 publications

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“…Aggregation of Noctiluca in the surface water has been found in many other coastal waters (e.g. Kuroda & Saga 1978, Schaumann et al 1988, Elbrächter & Qi 1998, Tada et al 2004. In littoral waters, after ascent to the upper layer caused by seasonal stratification, the passive accumulation of Noctiluca cells due to wind and/or tidal currents has been reported as an important mechanism for the formation of Noctiluca blooms or aggregations (Le Fèvre & Grall 1970, Huang & Qi 1997, Dela-Cruz et al 2003, Miyaguchi et al 2006.…”

Section: Seasonal Variations In Abundancementioning

confidence: 86%

“…Uhlig & Sahling 1990, Huang & Qi 1997, Schoemann et al 1998, Tada et al 2004, Miyaguchi et al 2006. Laboratory-culture experiments have shown that growth and production rates of Noctiluca are temperature-and food-dependent: Noctiluca has enhanced growth rates at temperatures ranging from 5 to 21-23 o C and under higher prey (phytoplankton) concentrations, whereas it could not grow at temperatures higher than 26- 27 o C (Lee & Hirayama 1992, Buskey 1995, Kiørboe & Titelman 1998, Nakamura 1998a, b, Pithakpol et al 2000a, Tada et al 2004). At our study site, the abundance and biomass of planktonic organisms (i.e.…”

Section: Seasonal Variations In Abundancementioning

confidence: 99%

“…planktonic protists and metazoans) with the same body weights (188 ng C or 428 ng DW) at the same water temperature (24.5 o C). These values were calculated using the regression equations of cell volume-cell carbon weight relationship and assuming carbon weight to be 43.9% of dry weight for Noctiluca (Omori 1969, Tada et al 2000, and the regression equations of body weight-excretion rate relationships for mesozooplankton and planktonic protists (Ikeda 1985, Dolan 1997.…”

Section: Nhmentioning

confidence: 99%

“…Seasonal, year-on-year and/or spatial variations in abundance of Noctiluca have been extensively studied in temperate and subtropical estuarine and coastal waters (e.g. Kuroda & Saga 1978, Uhlig & Sahling 1990, Huang & Qi 1997, Tada et al 2004, Miyaguchi et al 2006. These studies found distinct seasonal variations with considerable peaks (i.e.…”

Section: Introductionmentioning

confidence: 99%

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Seasonal variability of the red tide-forming heterotrophic dinoflagellate Noctiluca scintillans in the neritic area of Sagami Bay, Japan: its role in the nutrient-environment and aquatic ecosystem

Ara

Nakamura

Takahashi

et al. 2013

Plankton Benthos Res

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Abstract:The role of the heterotrophic dinoflagellate Noctiluca scintillans in affecting the nutrient-environment and aquatic ecosystem was investigated in the neritic area of Sagami Bay, Kanagawa, Japan, from January 2002 to December 2006, based on abundance, intracellular nutrient content, excretion rate and response of phytoplankton (diatoms) to enrichment of nutrients extracted from N. scintillans cells. Seasonal variations in abundance and vertical distribution of N. scintillans were significantly related to the physical structure of the water column, water temperature, chlorophyll a and primary productivity. Intracellular nutrient contents, except for Si(OH) 4 -Si, revealed clear seasonal fluctuations, which were significantly correlated to cell size variations. Thalassiosira rotula increased to higher cell abundances at higher concentrations of nutrients, which were extracted from N. scintillans cells. NH 4 + -N and PO 4 3--P excretion rates were much higher during the first 1-3 h, and decreased rapidly with time. Daily NH 4 + -N and PO 4 3--P supply by N. scintillans excretion was estimated to be on average 34.8% and 55.3%, especially 50.6-85.4% and 80.5-135.8% in April-July (monthly mean), of the daily N and P requirement for primary production, respectively. The large amounts of nutrients regenerated and released by N. scintillans excretion can increase the N and P concentrations in ambient seawater, especially in the upper layer in spring-summer, and consequently affect phytoplankton (diatom) abundance. These may exacerbate eutrophication in these waters by a mutually supportive relationship between phytoplankton and N. scintillans: bottom-up control (phytoplankton-N. scintillans) and nutrient supply by N. scintillans to phytoplankton through excretion.

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Section: Seasonal Variations In Abundancementioning

confidence: 86%

Section: Seasonal Variations In Abundancementioning

confidence: 99%

Section: Nhmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Seasonal variability of the red tide-forming heterotrophic dinoflagellate Noctiluca scintillans in the neritic area of Sagami Bay, Japan: its role in the nutrient-environment and aquatic ecosystem

Ara

Nakamura

Takahashi

et al. 2013

Plankton Benthos Res

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“…The biovolume was converted into carbon using the conversion factor given by Putt and Stoecker (1989) for ciliates and Menden-Deuer and Lessard (2000) for dinoflagellates. The carbon content of the large ''gelatinous'' dinoflagellate Noctiluca scintillans was estimated according to the biovolume-carbon relationship given by Tada et al (2000) after correction for shrinkage due to fixation (Beran et al 2003). Carbon concentrations [lgC L…”

Section: Methodsmentioning

confidence: 99%

Dinoflagellates and ciliates at Helgoland Roads, North Sea

et al. 2011

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A monitoring programme for microzooplankton was started at the long-term sampling station ''Kabeltonne'' at Helgoland Roads (54°11.3 0 N; 7°54.0 0 E) in January 2007 in order to provide more detailed knowledge on microzooplankton occurrence, composition and seasonality patterns at this site and to complement the existing plankton data series. Ciliate and dinoflagellate cell concentration and carbon biomass were recorded on a weekly basis. Heterotrophic dinoflagellates were considerably more important in terms of biomass than ciliates, especially during the summer months. However, in early spring, ciliates were the major group of microzooplankton grazers as they responded more quickly to phytoplankton food availability. Mixotrophic dinoflagellates played a secondary role in terms of biomass when compared to heterotrophic species; nevertheless, they made up an intense late summer bloom in 2007. The photosynthetic ciliate Myrionecta rubra bloomed at the end of the sampling period. Due to its high biomass when compared to crustacean plankton especially during the spring bloom, microzooplankton should be regarded as the more important phytoplankton grazer group at Helgoland Roads. Based on these results, analyses of biotic and abiotic factors driving microzooplankton composition and abundance are necessary for a full understanding of this important component of the plankton.

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Molecular and biochemical basis for the loss of bioluminescence in the dinoflagellateNoctiluca scintillansalong the west coast of the U.S.A.

Valiadi

Rond

Amorim

et al. 2019

Limnology & Oceanography

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The globally distributed heterotrophic dinoflagellate Noctiluca scintillans (Macartney) Kofoid & Swezy is well known for its dense blooms and prominent displays of bioluminescence. Intriguingly, along the west coast of the U.S.A., its blooms are not bioluminescent. We investigated the basis for this regional loss of bioluminescence using molecular, cellular, and biochemical analyses of isolates from different geographic regions. Several prominent differences were identified in the nonbioluminescent strains: (1) the fused luciferase and luciferin binding protein gene (lcf/lbp) was present but its transcripts were undetectable; (2) lcf/lbp contained multiple potentially deleterious mutations; (3) the substrate luciferin was absent, based on the lack of luciferin blue autofluorescence and the absence of luciferin‐derived metabolites; (4) although the cells possessed scintillons, the organelles that contain the luminescent chemistry, electron microscopy revealed additional scintillon‐like organelles with an atypical internal structure; and (5) cells isolated from the California coast were 43% smaller than bioluminescent cells from the Gulf of Mexico. Phylogenetic analyses based on large subunit rDNA did not show divergence of the nonbioluminescent population in relation to bioluminescent N. scintillans from the Pacific Ocean and Arabian Sea. This study demonstrates that gene silencing and the lack of the luciferin substrate have resulted in the loss of an important dinoflagellate functional trait over large spatial scales in the ocean. As the bioluminescence system of dinoflagellates is well characterized, nonbioluminescent N. scintillans provide an ideal model to explore the evolutionary and ecological mechanisms that lead to intraspecific functional divergence in natural dinoflagellate populations.

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Carbon and nitrogen content of Noctiluca scintillans in the Seto Inland Sea, Japan

Cited by 47 publications

References 13 publications

Seasonal variability of the red tide-forming heterotrophic dinoflagellate Noctiluca scintillans in the neritic area of Sagami Bay, Japan: its role in the nutrient-environment and aquatic ecosystem

Seasonal variability of the red tide-forming heterotrophic dinoflagellate Noctiluca scintillans in the neritic area of Sagami Bay, Japan: its role in the nutrient-environment and aquatic ecosystem

Dinoflagellates and ciliates at Helgoland Roads, North Sea

Molecular and biochemical basis for the loss of bioluminescence in the dinoflagellateNoctiluca scintillansalong the west coast of the U.S.A.

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