Photoperiodic control of diatom spore growth; a theory to explain the onset of phytoplankton blooms

Eilertsen, HC; Sandberg, Shawn; Tøllefsen, H.

doi:10.3354/meps116303

Cited by 88 publications

(64 citation statements)

References 9 publications

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“…Thus, at least during the study period, benthic propagules were very important for planktonic growth of these diatoms. Also, D. confervacea and T. (Eilertsen et al 1995;McQuoid and Hobson 1995).…”

Section: Discussionmentioning

confidence: 99%

“…A similar process may also be operating in some coastal areas. In northern fjords, there are few planktonic cells left in the surface waters after the typically long, dark winters, and benthic resting stages are the most likely supply of cells for the spring diatom bloom (Eilertsen et al 1995). Resting stages are also an important inoculation source for bloom formation in upwelling areas, because the propagules are brought to the surface with nutrient-rich deep water (Pitcher et al 1993).…”

Section: Acknowledgmentsmentioning

confidence: 99%

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Recruitment of coastal planktonic diatoms from benthic versus pelagic cells: Variations in bloom development and species composition

McQuoid

Godhe

2004

Limnology & Oceanography

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Although phytoplankton blooms are major events in aquatic systems, the importance of benthic resting stages in seeding planktonic blooms is still unclear. Using microcosms, we tested the influence of benthic versus planktonic inocula on the development and taxonomic composition of diatom communities in a temperate fjord. Experiments in early spring 2002, fall 2002, and late spring 2003 showed that the type and quantity of inoculum influenced bloom development and composition. Species composition was vastly different when seeded by cells from the benthos. Species such as Detonula confervacea and Thalassiosira minima showed strong dependence on benthic propagules. Populations of Chaetoceros debilis and Thalassiosira nordenskioeldii were initiated by both benthic and planktonic cells, and benthic seeding was most successful when experiments were preceded by a planktonic bloom. Skeletonema costatum was abundant in all treatments but showed variations in size, depending on the type of inoculum. Species that do not have a resting stage, such as Pseudo-nitzschia spp., were present only in planktontreated microcosms. Seasonal factors were especially important in determining the successful growth of newly seeded populations. Our results indicate that benthic resting stages provide an important source for some species. Because the introduction of benthic resting stages to surface waters can greatly influence species composition of the plankton, it is important that studies of plankton blooms include life-history stages from both the sediments and the water column.

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Section: Discussionmentioning

confidence: 99%

Section: Acknowledgmentsmentioning

confidence: 99%

Recruitment of coastal planktonic diatoms from benthic versus pelagic cells: Variations in bloom development and species composition

McQuoid

Godhe

2004

Limnology & Oceanography

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“…When considering only abiotic effects on blooms, it may be assumed that the onset of primary production is less dependent on temperature than on light (Sommer et al 1986;Eilertsen et al 1995;Eilertsen and Wyatt 2000). Consequently, a rise in temperature should not directly affect the beginning of the seasonal production.…”

Section: Discussionmentioning

confidence: 99%

Resilience of North Sea phytoplankton spring bloom dynamics: An analysis of long‐term data at Helgoland Roads

Wiltshire

Malzahn

Wirtz³

et al. 2008

Limnology & Oceanography

263

235

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Analyzing one of the most extensive long-term data series in the North Sea, the Helgoland Roads time series, we investigated the changes in the factors that potentially drive phytoplankton bloom dynamics in the German Bight. We compared the changes in these factors with the changes in the spring bloom phenology. We combined zooplankton, nutrient, weather, and phytoplankton data to analyze whether there has been a shift in trophic interactions in the North Sea affecting the spring bloom timing. The potential influence of temperature, with a mean increase of 1.5uC, was investigated. We showed that the German Bight around Helgoland is a highly dynamic system and has undergone considerable change in the last 30 yr. Nutrient levels, temperature, underwater light climate and wind speed have all changed. However, the spring bloom dynamics have hardly changed at all. We showed that the spring bloom tends to come later in warmer years but that this is not directly correlated with the overall warming trend. The known regime shift of the late 1980s is clearly visible in our data in terms of average phytoplankton winter densities and average cell size, but even so the start of the spring bloom has not changed.

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“…Photoperiod plays a role in regulating seasonal patterns in such distantly related organisms as mustards (Ausín et al 2005), mollusks (Wayne 2001) and mammals (Goldman 2001). Changing daylength influences the timing of sexual reproduction in some freshwater zooplankton (Stross & Hill 1968;Gilbert 1974), the timing of spore germination in marine diatoms (Eilertsen et al 1995) and the induction and termination of diapause in freshwater copepods (Williams-Howze 1997). Seasonal variation in insolation may even influence the timing of leaf flush in 'aseasonal' tropical forests (van Schaik et al 1993).…”

Section: (B) Photoperiodmentioning

confidence: 99%

Toward a synthetic understanding of the role of phenology in ecology and evolution

Forrest

Miller‐Rushing

2010

Phil. Trans. R. Soc. B

583

525

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Phenology affects nearly all aspects of ecology and evolution. Virtually all biological phenomenafrom individual physiology to interspecific relationships to global nutrient fluxes-have annual cycles and are influenced by the timing of abiotic events. Recent years have seen a surge of interest in this topic, as an increasing number of studies document phenological responses to climate change. Much recent research has addressed the genetic controls on phenology, modelling techniques and ecosystem-level and evolutionary consequences of phenological change. To date, however, these efforts have tended to proceed independently. Here, we bring together some of these disparate lines of inquiry to clarify vocabulary, facilitate comparisons among habitat types and promote the integration of ideas and methodologies across different disciplines and scales. We discuss the relationship between phenology and life history, the distinction between organismal-and population-level perspectives on phenology and the influence of phenology on evolutionary processes, communities and ecosystems. Future work should focus on linking ecological and physiological aspects of phenology, understanding the demographic effects of phenological change and explicitly accounting for seasonality and phenology in forecasts of ecological and evolutionary responses to climate change.

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Photoperiodic control of diatom spore growth; a theory to explain the onset of phytoplankton blooms

Cited by 88 publications

References 9 publications

Recruitment of coastal planktonic diatoms from benthic versus pelagic cells: Variations in bloom development and species composition

Recruitment of coastal planktonic diatoms from benthic versus pelagic cells: Variations in bloom development and species composition

Resilience of North Sea phytoplankton spring bloom dynamics: An analysis of long‐term data at Helgoland Roads

Toward a synthetic understanding of the role of phenology in ecology and evolution

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