The annual pattern of the diatoms in the epiphyton of eelgrass (Zostera marina L.) at Roscoff, France

Jacobs, R.P.W.M.; Noten, Th. M. P. A.

doi:10.1016/0304-3770(80)90065-0

Cited by 54 publications

(26 citation statements)

References 24 publications

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“…Early descriptions of the marine diatom floras were concentrated in temperate Northwest Atlantic estuaries (Peragallo & Peragallo, 1897-1908Van Heurck, 1899;Hendey, 1964;Admiraal & Peletier, 1980), especially on the unvegetated intertidal mudflats common to these regions. From these beginnings, investigations have expanded geographically and into vegetated marine ecosystems (Main & Mcintire, 1974;Montgomery, 1978;Jacobs & Noten, 1980;John, 1988;Snoeijs, 1994).…”

Section: Introductionmentioning

confidence: 99%

Spatial and temporal distributions of epiphytic diatoms growing on Thalassia testudinum Banks ex König: relationships to water quality

et al. 2006

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The spatial and temporal distributions of the epiphytic diatom flora on Thalassia testudinum was described within the Florida Bay estuary and at one Atlantic site east of the Florida Keys over a 1-year period. Species of the genus Mastogloia dominated the epiphytic diatom flora (82 out of 332 total species). Nonmetric Multidimensional Scaling (NMDS) and Analysis of Similarity (ANOSIM) revealed four distinct spatial assemblages and two temporal assemblages. Eastern and western Florida Bay assemblages were identified within the estuary. The eastern diatom assemblage was characterized by high relative abundances of Brachysira aponina and Nitzschia liebetruthii, while the western assemblage was characterized by the abundance of Reimerothrix floridensis, particularly during summer. Two diverse and distinct marine assemblages, one located in the Gulf of Mexico along the western edge of Florida Bay and the other behind the Florida reef tract in the Atlantic Ocean, were also identified. Analysis of the spatial distribution of diatoms and water quality characteristics within Florida Bay suggest that these assemblages may be structured by salinity and nutrient availability, particularly P. The Gulf of Mexico and the western Florida Bay assemblages were associated with higher water column salinities and TP concentrations and lower DIN concentrations and TN:TP ratios relative to the eastern Florida Bay assemblage. The temporal variation in diatom assemblages was associated with water temperature, though temporal indicator species were few relative to the number of spatial indicators.

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Section: Introductionmentioning

confidence: 99%

Spatial and temporal distributions of epiphytic diatoms growing on Thalassia testudinum Banks ex König: relationships to water quality

et al. 2006

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“…Another disadvantage of epiphytes is that; they decrease the host growth rates and result in loss of biomass through direct competition with the host algae for space, nutrients and inorganic carbon from the water column (Buschmann and Gómez, 1993). The rapid growth of epiphytes, such as diatoms, which are considered the most important structural elements of the epiphyton on seaweeds or seagrass (Jacobs and Noten, 1980), is usually the result of high nutrients. These high nutrient salts levels are usually caused by human activities in the area (Lobban and Harrison, 1994).…”

Section: Introductionmentioning

confidence: 99%

Ecological Studies of Epiphytic Microalgae and Epiphytic Zooplankton on Seaweeds of the Eastern Harbor, Alexandria, Egypt

El-Din¹,

Shaltout²,

Nassar³

et al. 2015

American Journal of Environmental Sciences

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Abstract:A qualitative and quantitative study on the epiphytic microalgae and epiphytic zooplankton were conducted in order to follow up their community structures on seaweeds in relation to some physicochemical variables in the coastal waters of the Eastern Harbor of Alexandria. Water and macroalgal samples were collected seasonally during two years successively: Winter, summer, autumn (2012) and spring (2013). The collected seaweeds were Ulva fasciata (green alga), Corallina mediterranea, Corallina officinalis, Gelidium sp., Pterocladiella capillacea, Hypnea musciformis and Grateloupia doryphora (red algae). The studied water quality parameters were pH, salinity, dissolved oxygen, oxidizable organic matter and nutrient salts. The abundance of epiphytes were significantly different between morphotypes (two-way ANOVA), p≤0.05; ranking the branched thalli as the first preference for microalgal epihytes, sheet-like thalli with a smooth surface as the second one, while the lowest rank was for the mucilaginous species. The same result was found for epiphytic zooplankton. The results of the statistics revealed insignificant seasonal variations in the epiphytic microalgae and very weak correlations between the abundance of microalgae and the physico-chemical parameters. In contrast, there were significant differences for epiphytic zooplanktonic seasonal variations. Whereas, the zooplankton count was correlated preferably with environmental water salinity, followed by nutrients.

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“…In estuaries, Cocconeis spp. are the dominant taxa on seagrasses (Jakobs & Noten 1980, Potapova 2011, Tiffany 2011 and are common at salinities of 8.8-21.4 (Jakobs & Noten 1980). Facca et al (2002) showed that MPB biomass on seagrasses was related to seagrass biomass.…”

Section: Spatial Distribution Of Dominant Species In the Water Columnmentioning

confidence: 99%

Spatial variability in an estuarine phytoplankton and suspended microphytobenthos community

Tsuji

Montani

2017

Plankton Benthos Res

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Estuarine material circulation depends on the presence of both phytoplankton and suspended microphytobenthos in the water column. However, the spatial distribution of suspended microphytobenthos and phytoplankton in estuaries is poorly understood. In this study, the abundance of suspended microphytobenthos and phytoplankton in the water column was determined along the salinity gradient in Lake Furen, Japan, from April to October 2015. Throughout the study period, surface and bottom salinity changed horizontally from <10 to >30. Phytoplankton was the main contributor to spatial increases in total cell abundance in mesohaline water as a result of the lake s hydrographic characteristics and water quality. The suspended microphytobenthos cell abundance in the surface and bottom water decreased with increasing salinity and was affected by the depth gradient. Suspended microphytobenthos cell abundances increased with depth (∼10 and 20% of total cell abundance in the surface and bottom water, respectively), which indicated that they were derived from microphytobenthos on the seafloor. The dominant suspended microphytobenthos taxa (Cocconeis spp. and Melosira varians) were mainly distributed in oligo-and mesohaline water, with peaks in mesohaline bottom water. In contrast, the dominant phytoplankton taxa (Skeletonema spp., Heterocapsa triquetra, and Prorocentrum spp.) were abundant at different salinity levels. The spatial distribution of dominant benthic and planktonic species in the water column was influenced by their tolerance to salinity. Our results suggest that suspended microphytobenthos contribute to microalgal communities in estuaries, especially those in bottom waters. Quantification of phytoplankton and suspended microphytobenthos will allow a better understanding of the effects of their spatial distribution on estuarine material circulation.

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The annual pattern of the diatoms in the epiphyton of eelgrass (Zostera marina L.) at Roscoff, France

Cited by 54 publications

References 24 publications

Spatial and temporal distributions of epiphytic diatoms growing on Thalassia testudinum Banks ex König: relationships to water quality

Spatial and temporal distributions of epiphytic diatoms growing on Thalassia testudinum Banks ex König: relationships to water quality

Ecological Studies of Epiphytic Microalgae and Epiphytic Zooplankton on Seaweeds of the Eastern Harbor, Alexandria, Egypt

Spatial variability in an estuarine phytoplankton and suspended microphytobenthos community

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