Relevant bibliographies by topics / Planktonic food web

Academic literature on the topic 'Planktonic food web'

Author: Grafiati
Published: 1 April 2023

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Contents

Consult the lists of relevant articles, books, theses, conference reports, and other scholarly sources on the topic 'Planktonic food web.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Journal articles on the topic "Planktonic food web"

1

Danielsdottir, Marta G., Michael T. Brett, and George B. Arhonditsis. "Phytoplankton food quality control of planktonic food web processes." Hydrobiologia 589, no. 1 (May 24, 2007): 29–41. http://dx.doi.org/10.1007/s10750-007-0714-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Rojo, Carmen, María A. Rodrigo, Guillem Salazar, and Miguel Álvarez-Cobelas. "Nitrate uptake rates in freshwater plankton: the effect of food web structure." Marine and Freshwater Research 59, no. 8 (2008): 717. http://dx.doi.org/10.1071/mf08023.

Full text
Abstract:
Nitrate incorporation rates by primary producers and the transfer of nitrogen to upper planktonic food web levels in different seasons (spring and summer of different years) were studied using a microcosm experimental approach. The study communities were natural plankton communities from Colgada Lake (central Spain), which is heavily polluted by nitrate. Natural δ15N in phytoplankton and zooplankton was measured and experiments were performed on the 15N supply. Naturally derived δ15N varied from 7.4 to 8.6‰ and from 10.0 to 16.8‰ in phytoplankton and zooplankton respectively. Nitrogen incorporation rates ranged from 0.006 to 0.036 μM h–1 and from 0.0004 to 0.0014 μM h–1 in phytoplankton and zooplankton respectively. The differences in natural δ15N levels and nitrogen incorporation rates between plankton fractions from seasonally different communities reported in the present study suggested that the nitrogen uptake by planktonic communities in Colgada Lake depend on different combinations of dominant zooplankters and phytoplankton size structure. A higher level of nitrogen uptake by phytoplankton occurred when small algae were dominant without competitors (larger algae) or main predators (herbivorous zooplankters). This was because copepods, with the lowest zooplankton nitrogen uptake, were dominant. Phytoplankton nitrogen uptake was lower when big algae were dominant.
APA, Harvard, Vancouver, ISO, and other styles
3

Perhar, Gurbir, and George B. Arhonditsis. "The effects of seston food quality on planktonic food web patterns." Ecological Modelling 220, no. 6 (March 2009): 805–20. http://dx.doi.org/10.1016/j.ecolmodel.2008.12.019.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Putland, JN, and RL Iverson. "Microzooplankton: major herbivores in an estuarine planktonic food web." Marine Ecology Progress Series 345 (September 13, 2007): 63–73. http://dx.doi.org/10.3354/meps06841.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Jackson, George A. "Effect of coagulation on a model planktonic food web." Deep Sea Research Part I: Oceanographic Research Papers 48, no. 1 (January 2001): 95–123. http://dx.doi.org/10.1016/s0967-0637(00)00040-6.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Paterson, M. J., D. Findlay, K. Beaty, W. Findlay, E. U. Schindler, M. Stainton, and G. McCullough. "Changes in the planktonic food web of a new experimental reservoir." Canadian Journal of Fisheries and Aquatic Sciences 54, no. 5 (May 1, 1997): 1088–102. http://dx.doi.org/10.1139/f97-018.

Full text
Abstract:
Changes in plankton community structure were examined in an experimental reservoir (Lake 979) before and after impoundment. The role of allochthonous organic matter in planktonic food webs is unclear, and reservoir creation can be viewed as an extreme manipulation of terrestrial organic matter inputs. After impoundment of Lake 979, concentrations of phosphorus, nitrogen, and dissolved organic carbon increased as a result of decomposition of flooded terrestrial organic matter. In the first year of impoundment, mean bacterial biomass increased 10 times , and individual bacterial cell volumes increased 2 times over pre-flooding averages. Phytoplankton production and biomass decreased to approximately 25% of pre-flooding levels. Zooplankton biomass and production by Cladocera increased 10 times , and zooplankton community composition changed from dominance by small-sized Bosmina longirostris to dominance by large Daphnia rosea. In the first year of impoundment, production by Cladocera usually exceeded phytoplankton14C productivity, suggesting that the main pathway of carbon flow to secondary producers shifted from an autochthonous to an allochthonous base derived from flooded terrestrial vegetation. In the second year of flooding, bacterial biomass decreased and phytoplankton biomass was higher than in the two previous years of study.
APA, Harvard, Vancouver, ISO, and other styles
7

Makareviciute-Fichtner, Kriste, Birte Matthiessen, Heike K. Lotze, and Ulrich Sommer. "Decrease in diatom dominance at lower Si:N ratios alters plankton food webs." Journal of Plankton Research 42, no. 4 (June 27, 2020): 411–24. http://dx.doi.org/10.1093/plankt/fbaa032.

Full text
Abstract:
Abstract Many coastal oceans experience not only increased loads of nutrients but also changes in the stoichiometry of nutrient supply. Excess supply of nitrogen and stable or decreased supply of silicon lower silicon to nitrogen (Si:N) ratios, which may decrease diatom proportion in phytoplankton. To examine how Si:N ratios affect plankton community composition and food web structure, we performed a mesocosm experiment where we manipulated Si:N ratios and copepod abundance in a Baltic Sea plankton community. In high Si:N treatments, diatoms dominated. Some of them were likely spared from grazing unexpectedly resulting in higher diatom biomass under high copepod grazing. With declining Si:N ratios, dinoflagellates became more abundant under low and picoplankton under high copepod grazing. This altered plankton food web structure: under high Si:N ratios, edible diatoms were directly accessible food for copepods, while under low Si:N ratios, microzooplankton and phago-mixotrophs (mixoplankton) were a more important food source for mesograzers. The response of copepods to changes in the phytoplankton community was complex and copepod density-dependent. We suggest that declining Si:N ratios favor microzoo- and mixoplankton leading to increased complexity of planktonic food webs. Consequences on higher trophic levels will, however, likely be moderated by edibility, nutritional value or toxicity of dominant phytoplankton species.
APA, Harvard, Vancouver, ISO, and other styles
8

Sierszen, Michael E., Gregory S. Peterson, and Jill V. Scharold. "Depth-specific patterns in benthic–planktonic food web relationships in Lake Superior." Canadian Journal of Fisheries and Aquatic Sciences 63, no. 7 (July 1, 2006): 1496–503. http://dx.doi.org/10.1139/f06-057.

Full text
Abstract:
In an investigation of the spatial characteristics of Laurentian Great Lakes food webs, we examined the trophic relationship between benthic amphipods (Diporeia) and plankton in Lake Superior. We analyzed the carbon and nitrogen stable isotope ratios of Diporeia and plankton at stations in water column depths of 4–300 m. Neither δ15N nor δ13C of plankton from the upper 50 m of the water column varied significantly with station depth. Diporeia isotope ratios exhibited depth-specific patterns reflecting changes in food sources and food web relationships with plankton. Diporeia was 13C enriched at station depths of <40 m, reflecting increased dietary importance of benthic algae. There was a systematic increase in Diporeia δ15N with depth, which appeared to result from a combination of dietary shifts in the nearshore and decompositional changes in Diporeia's principal food, sedimented plankton, in deep habitats. Diporeia δ13C and δ15N together described changes in food web isotope baseline with depth. They also discriminated three depth strata representing photic, mid-depth, and profundal zones. These findings have implications for our understanding of Great Lakes food webs and analyses of trophic position within them, the ecology of zoobenthos and plankton communities, and sampling designs for large lakes.
APA, Harvard, Vancouver, ISO, and other styles
9

Segura, A. M., D. Calliari, B. L. Lan, H. Fort, C. E. Widdicombe, R. Harmer, and M. Arim. "Community fluctuations and local extinction in a planktonic food web." Ecology Letters 20, no. 4 (February 27, 2017): 471–76. http://dx.doi.org/10.1111/ele.12749.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Setälä, Outi, Vivi Fleming-Lehtinen, and Maiju Lehtiniemi. "Ingestion and transfer of microplastics in the planktonic food web." Environmental Pollution 185 (February 2014): 77–83. http://dx.doi.org/10.1016/j.envpol.2013.10.013.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Dissertations / Theses on the topic "Planktonic food web"

1

Jenkins, David G. "Effects of an herbicide on a planktonic food web." Thesis, Virginia Polytechnic Institute and State University, 1986. http://hdl.handle.net/10919/90948.

Full text
Abstract:
In situ microcosms of a planktonic community were exposed to the triazine herbicide simazine. Randomly selected sets of microcosms were collected and sampled each week for three weeks (plus Week 0). Samples of ambient water were collected each week for evaluation of enclosure effects. Physical and chemical parameters were measured per microcosm. Simazine was measured at Weeks 0 and 3 only. The following organisms were preserved and quantified: phytoplankton, bacteria, and zooplankton, including ciliates, copepod nauplii, cladocerans and rotifers. Simazine decreased dissolved oxygen and pH, but increased nitrate and ammonia concentrations compared to control microcosms. A temporary decrease in temperature occurred at Week 1. Phytoplankton were differentially affected by simazine. Sensitive taxa included Trachelomonas, Glenodinium, diatoms and several species of relatively minor significance. Dinobryon and miscellaneous coccoids were not significantly affected. Phytoplankton ≥9 um were more affected by simazine than phytoplankton <9 um. Many cells <9 um may be facultative or obligate heterotrophs and not susceptible to simazine. Although data were variable, bacteria were also not affected by phytoplankton changes or simazine. Rotifers were the major zooplankters and the two dominant species, Kellicottia bostoniensis and Keratella cochlearis, were reported to graze exclusively on cells <9 um. Polyarthra vulgaris and Synchaeta pectinata also graze in this size range but are not limited to it. Copepod nauplii/copepodids were present, but adult copepods and cladocerans were rare. The tintinnid ciliate Codonella exhibited a temporary population increase during the study. Zooplankton were not affected by simazine-induced changes in the phytoplankton. Kellicottia bostoniensis was the only zooplankter affected by simazine: it had lesser mortality in higher concentrations of simazine. Possible reasons for this enhanced survival were discussed. The zooplankton (primarily rotifers) appeared to feed more on heterotrophic cells than on autotrophic cells, largely as a function of food size, and may have been more closely associated with the detrital food chain than the autotrophic food chain.
M.S.
APA, Harvard, Vancouver, ISO, and other styles
2

James, Neil Anthony. "Evaluating the effect of temperature on the planktonic food-web." Thesis, University of Liverpool, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.511064.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Ptacnik, Robert. "Omnivory in planktonic food webs a study on the impact of mixotrophic flagellates and microzooplankton on food web dynamics and productivity." Kiel Inst. für Meereskunde, 2003. http://e-diss.uni-kiel.de/diss_825/d825.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Drexel, Jan Peter. "Contribution of Nitrogen Fixation to Planktonic Food Webs North of Australia." Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/19733.

Full text
Abstract:
Nitrogen fixation is no longer considered to be a minor factor of the nitrogen cycle in oceanic ecosystems. Recent geochemical and biological efforts have led to a significant increase in the estimated input of nitrogen to marine ecosystems by biological fixation, while molecular studies have increased our knowledge of the number and diversity of nitrogen fixers known to be active in the ocean. Although Trichodesmium spp. have long been viewed as the primary marine nitrogen fixers, recent efforts have shown that various members of the picoplankton community are also actively involved in nitrogen fixation. The relative abundance of different nitrogen fixers is an important ecosystem parameter since nitrogen fixers may differ significantly in their physiology, life history and ecology. Here we combine rate measurements and stable isotope natural abundance measurements to constrain the impact of N2 fixation in the waters north of Australia. Samples were collected in the Coral, Arafura, and East Timor Seas, thus spanning three distinct hydrographic regions. Our data show that Trichodesmium has a significant influence on the stable nitrogen isotope ratios of particulate and zooplankton biomass and suggest that Trichodesmium is a significant source of nitrogen for the pelagic ecosystem. Based on stable carbon isotope ratios, it is also likely that the pathways are indirect and nitrogen fixed by Trichodesmium enters the higher trophic levels via decomposition as dissolved organic and inorganic nitrogen. Picocyanobacteria showed high diazotrophic activity at some stations, but unlike Trichodesmium, their N2 fixation rate was not reflected in the stable N isotope ratios of particulate and zooplankton biomass. Our results suggest an important N contribution to biomass by diazotrophs in the Coral Sea, Arafura Sea and East Timor Sea.
APA, Harvard, Vancouver, ISO, and other styles
5

Ptacnik, Robert [Verfasser]. "Omnivory in planktonic food webs : a study on the impact of mixotrophic flagellates and microzooplankton on food web dynamics and productivity / Institut für Meereskunde Kiel. By Robert Ptacnik." Kiel : Inst. für Meereskunde, 2003. http://d-nb.info/972118225/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Wasserman, Ryan J., Gwynneth F. Matcher, Tim J. F. Vink, and Pierre William Froneman. "Preliminary evidence for the organisation of a bacterial community by zooplanktivores at the top of an estuarine planktonic food web." Springer US, 2015. http://hdl.handle.net/10962/68237.

Full text
Abstract:
Publisher version
As part of a larger investigation, the effect of apex predation on estuarine bacterial community structure, through trophic cascading, was investigated using experimental in situ mesocosms. Through either the removal (filtration) or addition of specific size classes of planktonic groups, four different trophic scenarios were established using estuarine water and its associated plankton. One such treatment represented a “natural” scenario in which stable apex predatory pressure was qualified. Water samples were collected over time from each of the treatments for bacterial community evaluation. These samples were assessed through pyrosequencing of the variable regions 4 and 5 of the bacterial 16S rRNA gene and analysed at the species operational taxonomic unit (OTU) level using a community procedure. The blue-green group dominated the samples, followed by Proteobacteria and Bacteroidetes. Samples were the most similar among treatments at the commencement of the experiment. While the bacterial communities sampled within each treatment changed over time, the deviation from initial appeared to be linked to the treatment trophic scenarios. The least temporal deviation-from-initial in bacterial community was found within the stable apex predatory pressure treatment. These findings are consistent with trophic cascade theory, whereby predators mediate interactions at multiple lower trophic levels with consequent repercussions for diversity.
APA, Harvard, Vancouver, ISO, and other styles
7

Radabaugh, Kara. "Light-Environment Controls and Basal Resource Use of Planktonic and Benthic Primary Production." Scholar Commons, 2013. http://scholarcommons.usf.edu/etd/4564.

Full text
Abstract:
Consumers in marine and estuarine environments have a strong reliance on planktonic and benthic primary production. These two basal resources form the foundation of aquatic food webs, yet the abundance of phytoplankton and benthic algae are frequently inversely related due to competition for light and nutrients. As a result, optimal habitats for benthic and planktonic consumers vary spatially and temporally. To investigate these trends, three studies were conducted focusing on light attenuation and basal resources in a bay, river, and on a continental shelf. δ13C and δ15N stable isotopes can be used as endogenous tracers to determine both the trophic level and basal resource use of consumers. δ13C values of primary producers are determined by the isotopic values of available CO2 and by the degree of photosynthetic fractionation (εp) that occurs during photosynthesis. εp by aquatic algae is greater in high CO2concentrations, high light, during slow growth rates, and for cells with a small surface area to volume ratio. Interaction among these parameters complicates prediction of algal εp in a natural setting, prompting the investigation as to which factors would impact εp and δ13C in a dynamic estuary. Community-level fractionation of an assemblage of filamentous algae, pennate diatoms, and centric diatoms grown on glass plates was found to be positively correlated with photosynthetically active radiation (PAR), resulting in higher δ13C values for organic matter in low-light conditions. These results support the concept that the low-light benthic environment may contribute to the widely observed phenomenon of ~5 / higher δ13C values in benthic algae compared to phytoplankton. Spatial and temporal variability in the isotopic baseline provides evidence of shifting biogeochemical controls on primary production. The West Florida Shelf in the eastern Gulf of Mexico transitions from a eutrophic ecosystem near the Mississippi River to an oligotrophic ecosystem in offshore continental shelf waters. Spatiotemporal variability in the δ13C and δ15N signatures of primary producers and fish populations were examined along this gradient. Muscle δ15N from three widely distributed fish species exhibited strong longitudinal isotopic gradients that coincided with the principal trophic gradient, whereas δ13C values of fish muscle and benthic algae were correlated with depth. The three fish species had relatively high site fidelity, as isotopic gradients were consistent between seasons and years. Isotopic mixing models showed all three fish species had a significant reliance on benthic algae as a basal resource. Dynamic models of the West Florida Shelf isotopic baseline were created using spatial data and satellite-derived water quality characteristics as predictors. Models were constructed using data from three fish species and tested on four other species to determine if the models could be extrapolated to new taxa. Both dynamic and static δ15N models had similar predictive capabilities, indicating a fairly stable δ15N baseline. The satellite-derived dynamic variables explained more variation in baseline δ13C than static spatial descriptors. Planktonic primary production can directly impact benthic food chains through phytoplankton deposition. A novel phytoplankton deposition detection method that combined water-column and benthic fluorometry with surficial sediment sampling was developed and assessed in a two-year study of the Caloosahatchee River estuary. Classifications based upon this detection method showed phytoplankton deposition dominated the upstream region and deposition was associated with reduced dissolved oxygen concentrations. Benthic algae dominated in downstream regions, particularly during low freshwater flow conditions when light absorption by colored dissolved organic matter was low. This same Caloosahatchee River estuary study was used to determine if zooplankton aggregate in regions with optimal basal resource availability. The isopod Edotia triloba was found to associate with chlorophyll peaks when freshwater velocity was constant. Chlorophyll peaks were offset downstream or upstream from isopod aggregations when freshwater flow was accelerating or decelerating, implying that phytoplankton and isopods have different response times to changes in flow. Temporal and spatial fluctuations in water quality and primary production introduce instability to aquatic consumers that primarily rely on one basal resource. The current global trends in eutrophication and increasing planktonic production are likely to be a liability for benthic consumers due to increased benthic hypoxia and light attenuation. The results of these studies indicate that both the location of consumers and their isotopic signatures can be impacted by factors, such as light attenuation, that control benthic and planktonic primary production.
APA, Harvard, Vancouver, ISO, and other styles
8

Ersoy, Zeynep. "Biotic and environmental factors shaping body size distributions in freshwater planktonic food webs." Doctoral thesis, Universitat de Vic - Universitat Central de Catalunya, 2018. http://hdl.handle.net/10803/665387.

Full text
Abstract:
Les interaccions basades en la mida individual dels organismes tenen un paper important en la dinàmica de la comunitat i en els processos dels ecosistemes aquàtics, ja que la mida d’un individu és un tret clau dels organismes molt vinculat a la seva taxa metabòlica. El canvi climàtic i les pertorbacions afecten a les xarxes tròfiques planctòniques d'aigua dolça, debilitant les interaccions basades en la mida dels individus. En aquesta tesi es van desenvolupar quatre estudis relacionats però independents per obtenir una comprensió més profunda de les interaccions tròfiques basades en la mida individual dels organismes. L’objectiu era demostrar com els factors biòtics i ambientals afecten les interaccions basades en la mida dels individus de xarxes tròfiques planctòniques utilitzant aproximacions observacionals i experimentals en diferents localitats a Europa. Generalitzant, les nostres troballes clau d'aquesta tesi ressalten la importància d’integrar les relacions basades en la mida dels organismes i la resiliència de les comunitats amb la variació intraespecífica dels organismes a l’hora d’estudiar les interaccions tròfiques entre els organismes d’un ecosistema aquàtic. La comprensió d'aquestes interaccions ens permetrà gestionar i restaurar millor els ecosistemes aquàtics davant el canvi climàtic i altres pertorbacions induïdes per l'home.
Individual size-based interactions play a significant role in the community dynamics and ecosystem processes of aquatic ecosystems, because body size is a key trait of organisms that is highly linked to metabolic rates. Climate change and disturbances influence freshwater planktonic food webs, weakening the strength of size-based interactions. In this thesis, we conducted four related but independent studies to obtain a deeper understanding of the size-based trophic interactions. We aimed to demonstrate biotic and environmental factors influencing size-based interactions in planktonic food webs using observational and experimental approaches at different locations in Europe. Overall, our key findings from this thesis suggest that integrating size-based relationships and resilience of communities together with intraspecific variation is important while studying trophic interactions. Understanding these interactions will allow us to better manage and restore aquatic ecosystems in the face of climate change and other human-induced disturbances.
APA, Harvard, Vancouver, ISO, and other styles
9

Wenzel, Anja. "The role of terrestrial and phytoplankton-derived organic matter in planktonic food webs." Doctoral thesis, Umeå universitet, Institutionen för ekologi, miljö och geovetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-62287.

Full text
Abstract:
Lakes are important global ecosystems and many of them are nutrient-poor (unproductive). Especially in northern boreal latitudes, lakes may be heavily subsidized by terrestrial organic material (t-OM) from peat layers in the catchment. Thus, in addition to heterotrophic bacteria and phytoplankton, zooplankton may also use the particulate fraction of peat layer t-OM (t-POM) as a potential food source in those systems. Inputs of t-OM in northern latitudes are anticipated to increase in the future due to increasing precipitation and temperature. As t-OM is a good substrate for bacterial growth and as bacteria can often outcompete phytoplankton for inorganic nutrients, the proportions of heterotrophic bacteria and phytoplankton are expected to change in unproductive lakes. This may have pronounced impacts on zooplankton population dynamics. The aim of my thesis was to investigate how changes in food quality and quantity will affect metazoan zooplankton performance in unproductive lakes. Three laboratory studies assessed the quality of specific food components (phytoplankton, bacteria and peat layer t-POM) and their effects on Daphnia survival, growth and reproduction. Further, a mesocosm study with a full natural plankton community tested the predictions of the Light:Nutrient-Hypothesis in an unproductive clear water lake in situ by adding carbon and inorganic nutrients and changing light availability. I found that pure bacterial (Pseudomonas sp.) or t-POM diets could not sustain Daphnia populations, even though both were readily ingested. Daphnids needed at least 10-20% phytoplankton (Rhodomonas) in the diet to survive and even higher proportions (≥ 50%) were necessary for the production of viable offspring. Further, I showed that the dilution of non-limiting concentrations of Rhodomonas with increasing proportions of Pseudomonas or t-POM led to decreased Daphnia performance. Both Pseudomonas and t-POM lack essential biochemicals (fatty acids and sterols). In contrast, mineral nutrient limitation only occurred on t-POM-dominated diets as evidenced by a labeling experiment that showed Daphnia can incorporate carbon and phosphorus from Rhodomonas and Pseudomonas with similar efficiencies. Thus, peat layer t-POM was a lower quality food than Pseudomonas. This was corroborated by the finding that intermediate additions of Pseudomonas to limiting amounts of Rhodomonas supported increased Daphnia survival, growth and reproduction while t-POM additions had no beneficial effect. My results suggest that high terrestrial stable isotope signals in metazoan zooplankton are most likely derived from t-OM that is channeled tohigher trophic levels via the microbial loop (i.e. heterotrophic bacteria and/or bacterivorous protozoa) but not from direct metazoan feeding on t-POM. Furthermore, bacteria may serve as an important supplement to zooplankton diets when phytoplankton abundance is low. However, a sufficient proportion of high quality phytoplankton is always necessary to fulfil mineral and especially biochemical requirements of zooplankton in unproductive aquatic systems. The results of the mesocosm study showed that the Light:Nutrient-Hypothesis is not applicable to unproductive clear water systems in which the phytoplankton community is dominated by mixotrophs. In the face of the theoretical predictions, low light levels led to decreased zooplankton biomass. This was most likely caused by a shift in the algal community composition towards less edible taxa. Another reason may have been a weakening of the microbial loop. This is in line with the results of the laboratory studies that point out the importance of the microbial food web for zooplankton nutrition in unproductive lakes.
APA, Harvard, Vancouver, ISO, and other styles
10

Sakai, Yoichiro. "Spatio-temporal dynamics of planktonic food webs in the coastal ecosystem of Lake Biwa." 京都大学 (Kyoto University), 2013. http://hdl.handle.net/2433/180371.

Full text
APA, Harvard, Vancouver, ISO, and other styles
More sources

Books on the topic "Planktonic food web"

1

Tamminen, Timo, and H. Kuosa, eds. Eutrophication in Planktonic Ecosystems: Food Web Dynamics and Elemental Cycling. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-1493-8.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Heiskanen, Anna-Stiina. Sedimentation and recycling in aquatic ecosystems: The impact of pelagic processes and planktonic food web structure. Helsinki: Finnish Environment Institute, 1999.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
3

International PELAG Symposium (4th 1996 Helsinki, Finland). Eutrophication in planktonic ecosystems: Food web dynamics and elemental cycling : proceedings of the Fourth International PELAG Symposium, held in Helsinki, Finland, 26-30 August 1996. Dordrecht: Kluwer Academic Publishers, 1998.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
4

Webs and scales: Physical and ecological processes in marine fish recruitment. Seattle: Washington Sea Grant Program, 1993.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
5

Tamminen, T., and H. Kuosa. Eutrophication in Planktonic Ecosystems: Food Web Dynamics and Elemental Cycling. Springer Netherlands, 2011.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
6

Tamminen, T., and H. Kuosa. Eutrophication in Planktonic Ecosystems: Food Web Dynamics and Elemental Cycling. Springer London, Limited, 2013.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
7

Tamminen, T., and H. Kuosa. Eutrophication in Planktonic Ecosystems: Food Web Dynamics and Elemental Cycling. Springer, 2014.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
8

Eutrophication in Planktonic Ecosystems: Food Web Dynamics and (Developments in Hydrobiology). Springer, 2007.

Find full text
APA, Harvard, Vancouver, ISO, and other styles
9

Suthers, Iain, David Rissik, and Anthony Richardson, eds. Plankton. CSIRO Publishing, 2019. http://dx.doi.org/10.1071/9781486308804.

Full text
Abstract:
Healthy waterways and oceans are essential for our increasingly urbanised world. Yet monitoring water quality in aquatic environments is a challenge, as it varies from hour to hour due to stormwater and currents. Being at the base of the aquatic food web and present in huge numbers, plankton are strongly influenced by changes in environment and provide an indication of water quality integrated over days and weeks. Plankton are the aquatic version of a canary in a coal mine. They are also vital for our existence, providing not only food for fish, seabirds, seals and sharks, but producing oxygen, cycling nutrients, processing pollutants, and removing carbon dioxide from our atmosphere. This Second Edition of Plankton is a fully updated introduction to the biology, ecology and identification of plankton and their use in monitoring water quality. It includes expanded, illustrated descriptions of all major groups of freshwater, coastal and marine phytoplankton and zooplankton and a new chapter on teaching science using plankton. Best practice methods for plankton sampling and monitoring programs are presented using case studies, along with explanations of how to analyse and interpret sampling data. Plankton is an invaluable reference for teachers and students, environmental managers, ecologists, estuary and catchment management committees, and coastal engineers.
APA, Harvard, Vancouver, ISO, and other styles
10

Anger, Klaus, Steffen Harzsch, and Martin Thiel, eds. Developmental Biology and Larval Ecology. Oxford University Press, 2020. http://dx.doi.org/10.1093/oso/9780190648954.001.0001.

Full text
Abstract:
This volume examines Developmental Biology and Larval Ecology, Chapters in this volume synthesize our current understanding of early crustacean development from the egg through the embryonic and larval phase. The first part of this volume focuses on the fundamental aspects of crustacean embryonic development. The second part of the book provides an account of the larval phase of crustaceans and describes processes that influence the development from hatching to an adult-like juvenile. The third and final part of the book explores ecological interactions during the planktonic phase and how crustacean larvae manage to find food, navigate the dynamic water column, and avoid predators in a medium that offers few refuges. Collectively, these fifteen chapters provide a thorough overview of our present knowledge across the major themes in crustacean developmental biology and larval ecology. We expect this volume will be valuable to scholars and students who are interested in gaining deeper insights into the processes that lead from a single cell to subsequent stages of life and how - growing organisms face the challenges posed by their environment.
APA, Harvard, Vancouver, ISO, and other styles

Book chapters on the topic "Planktonic food web"

1

Carpenter, Stephen R. "Destabilization of Planktonic Ecosystems and Blooms of Blue-Green Algae." In Food Web Management, 461–81. New York, NY: Springer New York, 1992. http://dx.doi.org/10.1007/978-1-4612-4410-3_23.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Porter, Karen G. "Integrating the Microbial Loop and the Classic Food Chain Into a Realistic Planktonic Food Web." In Food Webs, 51–59. Boston, MA: Springer US, 1996. http://dx.doi.org/10.1007/978-1-4615-7007-3_5.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Thingstad, T. Frede. "A theoretical approach to structuring mechanisms in the pelagic food web." In Eutrophication in Planktonic Ecosystems: Food Web Dynamics and Elemental Cycling, 59–72. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-1493-8_4.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Kiørboe, Thomas. "Population regulation and role of mesozooplankton in shaping marine pelagic food webs." In Eutrophication in Planktonic Ecosystems: Food Web Dynamics and Elemental Cycling, 13–27. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-1493-8_2.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Wassmann, Paul. "Retention versus export food chains: processes controlling sinking loss from marine pelagic systems." In Eutrophication in Planktonic Ecosystems: Food Web Dynamics and Elemental Cycling, 29–57. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-1493-8_3.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Glibert, Patricia M. "Interactions of top-down and bottom-up control in planktonic nitrogen cycling." In Eutrophication in Planktonic Ecosystems: Food Web Dynamics and Elemental Cycling, 1–12. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-1493-8_1.

Full text
APA, Harvard, Vancouver, ISO, and other styles
7

Rantajärvi, Eija, Vesa Gran, Seija Hällfors, and Riitta Olsonen. "Effects of environmental factors on the phytoplankton community in the Gulf of Finland — unattended high frequency measurements and multivariate analyses." In Eutrophication in Planktonic Ecosystems: Food Web Dynamics and Elemental Cycling, 127–39. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-1493-8_10.

Full text
APA, Harvard, Vancouver, ISO, and other styles
8

Yilmaz, Ayşen, Süleyman Tuğrul, Çolpan Polat, Dilek Ediger, Yeşim Çoban, and Enis Morkoç. "On the production, elemental composition (C, N, P) and distribution of photosynthetic organic matter in the Southern Black Sea." In Eutrophication in Planktonic Ecosystems: Food Web Dynamics and Elemental Cycling, 141–56. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-1493-8_11.

Full text
APA, Harvard, Vancouver, ISO, and other styles
9

Polat, S. C., S. Tuğrul, Y. Çoban, O. Basturk, and I. Salihoglu. "Elemental composition of seston and nutrient dynamics in the Sea of Marmara." In Eutrophication in Planktonic Ecosystems: Food Web Dynamics and Elemental Cycling, 157–67. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-1493-8_12.

Full text
APA, Harvard, Vancouver, ISO, and other styles
10

Kristiansen, Svein. "Impact of increased river discharge on the phytoplankton community in the outer Oslofjord, Norway." In Eutrophication in Planktonic Ecosystems: Food Web Dynamics and Elemental Cycling, 169–77. Dordrecht: Springer Netherlands, 1998. http://dx.doi.org/10.1007/978-94-017-1493-8_13.

Full text
APA, Harvard, Vancouver, ISO, and other styles

Reports on the topic "Planktonic food web"

1

Benoit-Bird, Kelly J., and Margaret A. McManus. Importance of Thin Plankton Layers in Hawaiian Food Web Interactions: Research Spanning from Physical Circulation to Spinner Dolphins. Fort Belvoir, VA: Defense Technical Information Center, September 2009. http://dx.doi.org/10.21236/ada531179.

Full text
APA, Harvard, Vancouver, ISO, and other styles
2

Benoit-Bird, Kelly J., and Margaret A. McManus. Importance of Thin Plankton Layers in Hawaiian Food Web Interactions: Research Spanning from Physical Circulation to Spinner Dolphins. Fort Belvoir, VA: Defense Technical Information Center, September 2010. http://dx.doi.org/10.21236/ada541724.

Full text
APA, Harvard, Vancouver, ISO, and other styles
3

Benoit-Bird, Kelly J., and Margaret A. McManus. Importance of Thin Plankton Layers in Hawaiian Food Web Interactions: Research Spanning From Physical Circulation to Spinner Dolphins. Fort Belvoir, VA: Defense Technical Information Center, September 2012. http://dx.doi.org/10.21236/ada573314.

Full text
APA, Harvard, Vancouver, ISO, and other styles
4

Benoit-Bird, Kelly J., and Margaret A. McManus. Importance of Thin Plankton Layers in Hawaiian Food Web Interactions: Research Spanning From Physical Circulation to Spinner Dolphins. Fort Belvoir, VA: Defense Technical Information Center, September 2011. http://dx.doi.org/10.21236/ada597917.

Full text
APA, Harvard, Vancouver, ISO, and other styles
5

Benoit-Bird, Kelly J., and Margaret A. McManus. Importance of Thin Plankton Layers in Hawaiian Food Web Interactions: Research Spanning From Physical Circulation to Spinner Dolphins. Fort Belvoir, VA: Defense Technical Information Center, September 2011. http://dx.doi.org/10.21236/ada599222.

Full text
APA, Harvard, Vancouver, ISO, and other styles
6

Rahimipour, Shai, and David Donovan. Renewable, long-term, antimicrobial surface treatments through dopamine-mediated binding of peptidoglycan hydrolases. United States Department of Agriculture, January 2012. http://dx.doi.org/10.32747/2012.7597930.bard.

Full text
Abstract:
There is a need for renewable antimicrobial surface treatments that are semi- permanent, can eradicate both biofilms and planktonic pathogens over long periods of time and that do not select for resistant strains. This proposal describes a dopamine binding technology that is inexpensive, bio-friendly, non-toxic, and uses straight-forward commercially available products. The antimicrobial agents are peptidoglycanhydrolase enzymes that are non-toxic and highly refractory to resistance development. The goal of this project is to create a treatment that will be applicable to a wide variety of surfaces and will convey long-lasting antimicrobial activity. Although the immediate goal is to create staphylolytic surfaces, the technology should be applicable to any pathogen and will thus contribute to no less than 3 BARD priorities: 1) increased animal production by protecting animals from invasive and emerging diseases, 2) Antimicrobial food packaging will improve food safety and security and 3) sustainable bio- energy systems will be supported by coating fermentation vats with antimicrobials that could protect ethanolic fermentations from Lactobacillus contamination that reduces ethanol yields. The dopamine-based modification of surfaces is inspired by the strong adhesion of mussel adhesion proteins to virtually all types of surfaces, including metals, polymers, and inorganic materials. Peptidoglycanhydrolases (PGHs) meet the criteria of a surface bound antimicrobial with their site of action being extracellular peptidoglycan (the structural basis of the bacterial cell wall) that when breached causes osmotic lysis. As a proof of principle, we will develop technology using peptidoglycanhydrolase enzymes that target Staphylococcus aureus, a notoriously contagious and antimicrobial-resistant pathogen. We will test for susceptibility of the coating to a variety of environmental stresses including UV light, abrasive cleaning and dessication. In order to avoid resistance development, we intend to use three unique, synergistic, simultaneous staphylococcal enzyme activities. The hydrolases are modular such that we have created fusion proteins with three lytic activities that are highly refractory to resistance development. It is essential to use multiple simultaneous activities to avoid selecting for antimicrobial resistant strains. This strategy is applicable to both Gram positive and negative pathogens. We anticipate that upon completion of this award the technology will be available for commercialization within the time required to achieve a suitable high volume production scheme for the required enzymes (~1-2 years). We expect the modified surface will remain antimicrobial for several days, and when necessary, the protocol for renewal of the surface will be easily applied in a diverse array of environments, from food processing plants to barnyards.
APA, Harvard, Vancouver, ISO, and other styles
You might also be interested in the extended bibliographies on the topic 'Planktonic food web' for particular source types:
Journal articles Dissertations / Theses
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography