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Literatura académica sobre el tema "Benthic algae"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 20 de febrero de 2023

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Artículos de revistas sobre el tema "Benthic algae"

1

Reiter, Michael A. "Development of Benthic Algal Assemblages Subjected to Differing Near-Substrate Hydrodynamic Regimes". Canadian Journal of Fisheries and Aquatic Sciences 46, n.º 8 (1 de agosto de 1989): 1375–82. http://dx.doi.org/10.1139/f89-176.

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Recent research concerning benthic algae in streams suggests that the near-substrate hydrodynamic regime may affect the composition of benthic algal assemblages. Algae from local streams were allowed to colonize laboratory flumes containing substrates of different sizes under two velocity regimes to determine whether benthic algal assemblages were affected by substrate size or hydrodynamics. While all hydrodynamic parameters except for local velocity diverged among flumes with different substrate sizes, cell counts per unit area of substrate and the relative proportions of different forms of algae remained similar overall. Much of the similarity appears to be attributable to the dominant filamentous algae. "Blooms" of one or two species were detected on occasion, but did not affect overall similarity (though they may affect local recolonization). The results, if extrapolated, suggest that hydrodynamic conditions alone may not be responsible for the variation in algal assemblages seen in the field, and that the morphological form of the alga may be more important than the species of alga when determining its response to hydrodynamic conditions.

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2

Williamson, Bo, Paul W. Gabrielson y Margarita Brandt. "First report of any species of the red algal order Nemaliales from mainland Ecuador: Neoizziella asiatica (Liagoraceae, Rhodophyta)". Botanica Marina 65, n.º 2 (28 de febrero de 2022): 135–39. http://dx.doi.org/10.1515/bot-2021-0092.

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Abstract The benthic marine algae of the mainland coast of Ecuador are poorly known mainly due to a lack of collections. Currently, DNA barcoding is the preferred method to identify species of benthic marine algae worldwide, as morpho-anatomical characters are inadequate to distinguish many species of macroalgae. We used the red algal barcode rbcL-3P to identify specimens collected in January 2020 from Manabí, Ecuador as Neoizziella asiatica. This is the first member of the red algal order Nemaliales to be reported from the mainland coast of Ecuador and extends the distribution of this alga by 1,100 km to the south from Panama.

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3

Smirnova, S. V., O. Y. Chaplygina y A. F. Luknitskaya. "Algal communities of the waterbodies of Schirmacher Oasis, East Antarctica". Arctic and Antarctic Research 66, n.º 2 (10 de julio de 2020): 198–216. http://dx.doi.org/10.30758/0555-2648-2020-66-2-198-216.

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In continental waterbodies of Antarctic oases specific algal communities are forming. The structure and dominating complex of species of this communities due to different distance from the seashore and latitude, the composition of the constituent rocks, altitude and the presence in the past of periods of contact with sea water is unique for different oases. It may vary in different waterbodies within one oasis besides.Aim of the research is to describe different types of algal communities from the continental waterbodies of Schirmacher Oasis and it’s confinement to the different types of waterbodies.Samples were collected from 173 waterbodies: 151 with stagnant water and 22 streams.During the study 64 species of Cyanoprokaryotes were found, and this group usually dominated in communities. Also 14 most frequent species of Chlorophyta, 12 most frequent species of Bacillariophyta, 6 species of desmid algae, 2 species of Xanthophyceae, 1 species of Eustigmatophyceae were noted in benthos. Usually resting stages and in one case — life cells of Golden algae (Chrysophyceae, Synurophyceae) were found in mats on the bottom of big lakes. Plankton algae in most of the waterbodies had very low abundance and diversity and were strongly influensed by trophic level. Benthic algal communities were much more diverse and abundant. Eight sustainable types of benthic algal communities were revealed in continental waterbodyes of Schirmacher Oasis. Form, colour, and species composition of bentic films and mats strongly depended on temperature, conductivity and pH of the waterbody and its depth.

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4

Rull Lluch, Jordi. "Marine benthic algae of Namibia". Scientia Marina 66, S3 (30 de diciembre de 2002): 5–256. http://dx.doi.org/10.3989/scimar.2002.66s35.

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5

Mayr, Magdalena, Jacqueline Jerney y Michael Schagerl. "Combating planktonic algae with benthic algae". Ecological Engineering 74 (enero de 2015): 310–18. http://dx.doi.org/10.1016/j.ecoleng.2014.10.034.

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6

Stevenson, R. J., R. Singer, D. A. Roberts y C. W. Boylen. "Patterns of Epipelic Algal Abundance with Depth, Trophic Status, and Acidity in Poorly Buffered New Hampshire Lakes". Canadian Journal of Fisheries and Aquatic Sciences 42, n.º 9 (1 de septiembre de 1985): 1501–12. http://dx.doi.org/10.1139/f85-188.

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The biovolume and species composition of algae on sediments in 20 poorly buffered New Hampshire lakes were surveyed in autumn to delineate patterns of community structure and composition with acidity and trophic status of lakes, and along depth gradients within lakes. Patterns of total algal biovolume on sediments were not strongly related to these habitat conditions because of masking by algae that probably settled from the plankton onto sediments. Biovolumes of "benthic" algae generally decreased with depth; however, weak and positive correlations between biovolumes of some benthic algal taxa and depth indicated that benthic algae had adapted to low light conditions and were perhaps facultatively heterotrophic. Decreases in diatom and increases in blue-green algal biovolumes with total phosphorus and chlorophyll a concentrations in lake water indicated that blue-green algae were better adapted for sequestering nutrients in low light environments. The variability in patterns of algal biovolume with acid neutralizing capacity (ANC) and pH indicated that algae had adapted well to different levels of ANC and pH. Biovolumes of blue-greens were negatively correlated with ANC, primarily because of the high biovolumes of various blue-green algae that occurred sporadically in lakes with ANC between 0 and 20 μeg/L and pH between 5.8 and 6.0. Diatom biovolumes generally increased with ANC and pH; however, biovolumes of several species of diatoms, including a Pinnularia, were greatest in low ANC and pH lakes. In general, Eunotia biovolumes decreased and Navicula and Pinnularia biovolumes increased with ANC and pH.

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7

Liao, Zhiheng, Kefu Yu, Yinghui Wang, Xueyong Huang y Lijia Xu. "Coral-algal interactions at Weizhou Island in the northern South China Sea: variations by taxa and the exacerbating impact of sediments trapped in turf algae". PeerJ 7 (13 de marzo de 2019): e6590. http://dx.doi.org/10.7717/peerj.6590.

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Competitive interactions between corals and benthic algae are increasingly frequent on degrading coral reefs, but the processes and mechanisms surrounding the interactions, as well as the exacerbating effects of sediments trapped in turf algae, are poorly described. We surveyed the frequency, proportion, and outcomes of interactions between benthic algae (turf algae and macroalgae) and 631 corals (genera: Porites, Favites, Favia, Platygyra, and Pavona) on a degenerating reef in the northern South China Sea, with a specific focus on the negative effects of algal contact on corals. Our data indicated that turf algae were the main algal competitors for each surveyed coral genus and the proportion of algal contact along the coral edges varied significantly among the coral genera and the algal types. The proportions of algal wins between corals and turf algae or macroalgae differed significantly among coral genera. Compared to macroalgae, turf algae consistently yielded more algal wins and fewer coral wins on all coral genera. Amongst the coral genera, Porites was the most easily damaged by algal competition. The proportions of turf algal wins on the coral genera increased 1.1–1.9 times in the presence of sediments. Furthermore, the proportions of algal wins on massive and encrusting corals significantly increased with the combination of sediments and turf algae as the algal type. However, the variation in proportions of algal wins between massive and encrusting corals disappeared as sediments became trapped in turf algae. Sediments bound within turf algae further induced damage to corals and reduced the competitive advantage of the different coral growth forms in their competitive interactions with adjacent turf algae.

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8

Davie, Alec W. y Simon M. Mitrovic. "Benthic algal biomass and assemblage changes following environmental flow releases and unregulated tributary flows downstream of a major storage". Marine and Freshwater Research 65, n.º 12 (2014): 1059. http://dx.doi.org/10.1071/mf13225.

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A large dam reducing the magnitude of flows regulates the Severn River, Australia. Environmental flows (EFs) are designed to increase the magnitude of flow and improve ecological outcomes such as reducing filamentous algal biomass and re-setting algal succession. The effectiveness of EF releases to alter benthic algal assemblages is poorly understood. We examined benthic algal biomass and assemblage structure at two cobble-dominated riffle sites downstream of Pindari Dam, before and after two EFs. Both EFs had discharges of ~11.6 m3 s–1 (velocity of ~0.9 m s–1). Neither EF reduced benthic algal biomass, and sometimes led to increases, with density of some filamentous algae increasing (Stigeoclonium and Leptolyngbya). An unregulated flow from a tributary between the two sites increased discharge to 25.2 m3 s–1 (velocity of ~1.2 m s–1), decreasing biomass and density of filamentous algae. The similarity in flow velocities between scouring and non-scouring events suggests that thresholds may exist and/or suspended sediments carried from unregulated tributaries may contribute to reduce algal biomass. Identifying velocities needed to reduce algal biomass are useful. Accordingly, EFs with flow velocities ~1.2 m s–1 may achieve this in river cobble-dominated riffle sections dominated by filamentous algae. Lower flow velocities of <0.9 m s–1 may result in no change or an increase in filamentous algae.

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9

Winter, Jennifer G., Peter J. Dillon, Carolyn Paterson, Ron A. Reid y Keith M. Somers. "Impacts of golf course construction and operation on headwater streams: bioassessment using benthic algae". Canadian Journal of Botany 81, n.º 8 (1 de agosto de 2003): 848–58. http://dx.doi.org/10.1139/b03-081.

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The influence of golf course operation and construction on benthic algal communities in headwater streams on the Precambrian Shield was investigated using a reference condition approach. Streams were sampled for water chemistry and epilithic benthic algae on operational golf courses, on courses under construction, and from nearby minimally impacted reference locations. Epilithic diatom community structure was different in reference streams than in operational golf course streams, the latter indicating nutrient enrichment, higher pH, and disturbance. Full counts of diatoms and soft algae revealed that there was a lower proportion of diatoms relative to other algal groups, cyanobacteria in particular, in operational golf course streams compared with samples from reference locations. Dominance by a single taxon was also significantly higher in operational golf course streams. Although differences relative to the reference streams were less marked for the streams on courses under construction, full counts of diatoms and soft algae provided evidence of disturbance and nutrient enrichment. In particular, high proportions of filamentous green algae were recorded. Overall, our results indicate that golf course land management on the Shield is associated with significant differences in the abundance of certain benthic algal taxa in headwater streams.Key words: diatoms, periphyton, biomonitoring, golf courses, canonical correspondence analysis (CCA), Precambrian Shield.

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10

Barott, Katie L., Beltran Rodriguez-Mueller, Merry Youle, Kristen L. Marhaver, Mark J. A. Vermeij, Jennifer E. Smith y Forest L. Rohwer. "Microbial to reef scale interactions between the reef-building coral Montastraea annularis and benthic algae". Proceedings of the Royal Society B: Biological Sciences 279, n.º 1733 (16 de noviembre de 2011): 1655–64. http://dx.doi.org/10.1098/rspb.2011.2155.

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Competition between reef-building corals and benthic algae is of key importance for reef dynamics. These interactions occur on many spatial scales, ranging from chemical to regional. Using microprobes, 16S rDNA pyrosequencing and underwater surveys, we examined the interactions between the reef-building coral Montastraea annularis and four types of benthic algae. The macroalgae Dictyota bartayresiana and Halimeda opuntia , as well as a mixed consortium of turf algae, caused hypoxia on the adjacent coral tissue. Turf algae were also associated with major shifts in the bacterial communities at the interaction zones, including more pathogens and virulence genes. In contrast to turf algae, interactions with crustose coralline algae (CCA) and M. annularis did not appear to be antagonistic at any scale. These zones were not hypoxic, the microbes were not pathogen-like and the abundance of coral–CCA interactions was positively correlated with per cent coral cover. We propose a model in which fleshy algae (i.e. some species of turf and fleshy macroalgae) alter benthic competition dynamics by stimulating bacterial respiration and promoting invasion of virulent bacteria on corals. This gives fleshy algae a competitive advantage over corals when human activities, such as overfishing and eutrophication, remove controls on algal abundance. Together, these results demonstrate the intricate connections and mechanisms that structure coral reefs.

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Tesis sobre el tema "Benthic algae"

1

Kahlert, Maria. "Biomass and Nutrient Status of Benthic Algae in Lakes". Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Univ.-bibl. [distributör], 2001. http://publications.uu.se/theses/91-554-5097-0/.

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2

Shamsudin, L. B. "The benthic algae of the River Itchen with particular reference to epilithic algae and epilithic algae on selected macrophytes". Thesis, University of Southampton, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.375372.

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3

Novitski, Linda Nicole. "BENTHIC ALGAL COMMUNITY STRUCTURE ALONG AN ELEVATIONAL AND CHEMICAL GRADIENT IN THE HAZEL CREEK WATERSHED, GREAT SMOKY MOUNTAINS NATIONAL PARK". Bowling Green State University / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1155742200.

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4

McGee, Dorien Kymberly. "Morphologic comparisons of shallow and deepwater benthic marine diatoms of Onslow Bay, North Carolina /". Electronic version (PDF), 2005. http://dl.uncw.edu/etd/2005/mcgeed/dorienmcgee.pdf.

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5

Adams, John Anthony. "Benthic calcareous algae as Jurassic marine temperature indicators in Western Europe". Thesis, Cardiff University, 2004. http://orca.cf.ac.uk/55372/.

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The determination of calcareous chlorophyte distributional limits is via temperatures---namely isocrymal limits, because the green algae are very susceptible to cold temperatures. The calcereous green algae are today and were in the past, one of the most sensitive and useful environmental indicators. As well as being useful in distribution analysis, they are a useful part of biotic analysis in general. Calcareous green algae are mostly, but not wholly tropical in nature---they are found in shallow marine environments up to their range extent of just into temperate water masses (12°C isocrymal). The Dasycladales were dominated form of calcareous alga in the Jurassic (today their role has been largely taken over by the Halimidaceae). It can be seen that in the Upper Jurassic (where there are enough datapoints to form a reasonable limit, as opposed to the Lower or Mid Jurassic) that the Halimedaceae appeared to terminate at a line slightly southwards of the Dasycladales (this compares with the modern situation of a shared termination limit). Modern calcareous Chlorophyta distributions can delimit in the 12°C isocrymal water temperature boundary, and this limit can be imposed on the Jurassic Chlorophyta distribution dataset for palaeothermometry purposes. Together with selected isotope values, it is possible to estimate Jurassic isocrymes across Western Europe. This suggests the possibility of creatures such as belemnites (which are used for isotopically derived palaeotemperatures) having recorded summer temperatures in their isotopes rather than annual average. Modern algal temperature value differences (isocrymal versus summer maximum) is by ∼10°C and this change in values for the Jurassic Chlorophyta produces temperature figures equivalent to a majority of the isotopically derived temperature values.

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6

Roberts, Emyr Martyn Tomas. "Tidal modulation of seabed light and its implications for benthic algae". Thesis, Bangor University, 2015. https://research.bangor.ac.uk/portal/en/theses/tidal-modulation-of-seabed-light-and-its-implications-for-benthic-algae(9842ea2e-2c3f-47c7-8a2e-2f0af199b393).html.

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The light climate at the seabed of shallow, tidal seas is extremely variable, and light is, therefore, often the most important abiotic factor pertaining to primary production in coastal benthic ecosystems. The influence of the tide on seabed light, and thus photosynthesis, has received limited attention in the scientific literature, despite being potentially very substantial. In this thesis, three physical aspects of tidal modulation of seabed light are investigated: (1) temporal (i.e., springs-neaps) patterns induced by the tide in daily total seabed light; (2) the net effect of the tide (e.g., amplification or reduction) on seabed light integrated over a range of timescales; and (3) the potential of the tide to modify the spectrum of seabed light. The implications of these three aspects for benthic algae are explored theoretically. Observations of seabed light were made over springs-neaps cycles in winter and summer at the Menai Strait (North Wales, U.K.). At this turbid, macro-tidal site, low waters occur at about midday and midnight during neap tides, and at about 6am and 6pm during spring tides. Neap tides hosted the largest daily totals of seabed light in both seasons. A `switch' to spring tides hosting the largest daily totals in the summer months (by virtue of both morning and evening low waters occurring within the longer daylengths), as predicted by Bowers et al. (1997), did not occur. The general increase in turbidity in the strait at spring tides, and the marked increases at low waters of spring tides, were shown to be responsible. Observations at the Bay of Brest (Brittany, France), a macro-tidal site diametrically opposite to the Menai Strait in terms of the times of low waters at neaps and springs, indicated a peak at springs throughout the year. Analytical and graphical tools were developed that permit the nature of springs-neaps patterns in daily total seabed light and the occurrence (or non-occurrence) of seasonal 'switches in sense' to be predicted for sites of interest. Comparison of measured light levels with literature values for the saturation of photosynthesis in example algal species indicated that corresponding springs-neaps cycles may be induced in daily total benthic primary production. The net effect of the tide on seabed light integrated over daily intervals was described theoretically by Bowers and Brubaker (2010). Observations of the effect from the Bay of Brest (Brittany, France), made using a novel mooring configuration, showed good agreement with predictions based on the existing theoretical framework, confirming that the important parameters are the time of low water, tlw, the tidal amplitude, b, the diffuse attenuation coefficient, kPAR, and the daylength, L. The results of a simple numerical modelling study indicated that depthintegrated annual totals of irradiance and photosynthesis are amplified by the tide in the Bay of Brest, despite annual total photosynthesis being reduced by the tide at the shallowest sub-tidal positions, owing to light-saturation and photoinhibition effects. The results also suggested that differences in the areal extent, primary productivity, and vertical zonation of benthic algal communities from site to site may be partially attributable to differences in the values and temporal behaviour of tlw, b, kPAR, and L between the sites, through their influence on seabed light. Time-series observations of the spectral distribution of light at the seabed, made during winter at the Menai Strait, revealed that the most strongly attenuated wavelengths (i.e., blue and red in coastal waters) were preferentially amplified by the tide over a springs-neaps cycle. Further analysis indicated that the observed 'tidal flattening' of the spectrum of time-integrated irradiance would not significantly benefit one example species more than another (i.e., one red alga, one brown) on the basis of their different pigment compositions and photosynthetic action spectra. This was considered to be true at the mean depth of the observations, but it was predicted that at shallower depths the effect would confer a photosynthetic advantage on brown algae such as species of kelp, perhaps contributing to their dominance amongst benthic vegetation in the shallow sub-tidal zone. This study has shown that the tide has significant and predictable effects on the temporal behaviour, quantity and spectral quality of seabed light, which should be accounted for when modelling benthic marine primary productivity, interpreting the results of ecological field studies, and predicting the response of coastal benthic ecosystems to environmental change.

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7

Mills, David Kevin. "Productivity and distribution of benthic microalgae in the Forth estuary". Thesis, Heriot-Watt University, 1985. http://hdl.handle.net/10399/1649.

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Manzoni, Ginevra. "Possible effects of the invasive algae Caulerpa cylindracea on the benthic assemblages". Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020.

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In the Mediterranean Sea, the spread of the invasive algae Caulerpa cylindracea appears to be one of the most severe threat to the biodiversity of the coralligenous benthic communities. The magnitude of its effects may be modulated by the features of recipient communities, considering the high variability in species composition and relative abundance that characterize these biogenic reefs. The structure of benthic assemblages, taxa abundances and species diversity were investigated using a manipulative approach at three study sites in Elba Island and applying a multifactorial experimental design. Benthic assemblages’ structure, abundance and diversity were investigated in relation to the possible effects of both presence and absence of C. cylindracea and of the gorgonian Paramuricea clavata. Being C. cylindracea widely spread in the study sites, its absence in the specifically intended plots was maintained by periodical manual removals, while appropriate plots with and without P. clavata were selected for proper experimental setup. The coverage of P. clavata was comparatively low and, except a slightly but significant increase of benthic species richness in presence of the gorgonian, no other effects of its presence on the benthic assemblages among sites nor in relation to the presence of C. cylindracea were detected. Overall, Corallinaceae encrusting algae, turfs and sediment dominated in term of percent cover both in presence and absence of C. cylindracea. The effects of the presence of C. cylindracea on the structure of benthic assemblages appeared moderate and site specific. That is probably due to high heterogeneity of environmental conditions and different invasiveness of C. cylindracea at the investigated spatial scales.

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9

Liess, Antonia. "Nutrient Stoichiometry in Benthic Food Webs – Interactions Between Algae, Herbivores and Fish". Doctoral thesis, Uppsala : Acta Universitatis Upsaliensis : Universitetsbiblioteket [distributör], 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-6933.

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10

Johnson, Vivienne R. "A study of marine benthic algae along a natural carbon dioxide gradient". Thesis, University of Plymouth, 2012. http://hdl.handle.net/10026.1/1230.

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Increasing atmospheric CO2 is causing unprecedented changes in seawater chemistry, yet the uncertainty of the ecological response to these projected changes, termed ‘ocean acidification’, remains considerable at present. To predict the effects of these changes, we need to improve our understanding of the responses of marine primary producers since these drive biogeochemical cycles and determine the structure and function of benthic habitats. The majority of experiments on the effects of ocean acidification on photoautrophs to date have mainly focused on oceanic microalgae, leaving benthic assemblages largely overlooked. Carbon dioxide vents are providing a means for examining and predicting the impacts of ocean acidification on marine ecosystems. In this thesis a temperate CO2 volcanic vent gradient was used to investigate the responses of benthic microalgal assemblages (periphyton, epilithic, epipelic, epipsammic and endolithic) and macroalgae (a calcified phaeophyte, crustose coralline algae and turf algae) to increasing pCO2. The photosynthetic standing crop of microphytobenthic assemblages increased significantly with elevations in CO2 indicating that the productivity of shallow water habitats may be promoted over the course of this century. Some benthic diatoms appear to benefit in naturally CO2 enriched environments whilst benthic cyanobacteria in this study appear to be relatively insensitive to the levels of increase predicted for this century. Dramatic shifts in epilithic macroalgae assemblages were observed along the CO2 gradient and a calcified phaeophyte was revealed as an unexpected ecological winner under ocean acidification scenarios. These observations suggest that benthic algal assemblages have the potential to dramatically alter as CO2 levels continue to rise; this would have profound consequences for the structure and function of benthic ecosystems.

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Libros sobre el tema "Benthic algae"

1

Biology of polar benthic algae. New York: De Gruyter, 2010.

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2

Lluch, Jordi Rull. Marine benthic algae of Namibia. Barcelona, Spain: Institut de Ciències del Mar, 2002.

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3

Wiencke, Christian, ed. Biology of Polar Benthic Algae. Berlin, New York: DE GRUYTER, 2010. http://dx.doi.org/10.1515/9783110229714.

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Lin, Showe-Mei. Marine benthic macroalgal flora of Taiwan. Keelung, Taiwan: National Taiwan Ocean University, 2009.

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5

Marinus, Huisman John, McCarthy P. M. 1955-, Australian Biological Resources Study, CSIRO Publishing y Australia. Dept. of the Environment and Heritage., eds. Algae of Australia. Canberra: Australian Biological Resources Study, 2006.

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6

Te-hsiang, Chin, ed. The marine benthic diatoms in China. Beijing: China Ocean Press, 1985.

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Gallardo, Tomás. A preliminary checklist of Iberian benthic marine algae. Madrid: Real Jardín Botánico, 1985.

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8

Boudouresque, Charles-François. A checklist of the benthic marine algae of Corsica. [Marseille: Gis Posidonie, Faculté des Sciences de Luminy, 1987.

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9

Correia, Maria Marlúcia Ferreira. Rodofíceas marinhas bentônicas do litoral oriental do Estado do Maranhão. São Luís, Ma: Universidade Federal do Maranhão, 1987.

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Basson, Philip W. A Survey of the benthic marine algae of Bahrain. al-Manāmah: Bahrain Centre for Studies & Research, Support for Scientific Research Efforts in Bahrain, 1990.

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Capítulos de libros sobre el tema "Benthic algae"

1

McGlathery, Karen J., Kristina Sundbäck y Peggy Fong. "Estuarine Benthic Algae". En Estuarine Ecology, 203–34. Hoboken, NJ, USA: John Wiley & Sons, Inc., 2012. http://dx.doi.org/10.1002/9781118412787.ch8.

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Bernecker, Andrea. "Marine Benthic Algae". En Marine Biodiversity of Costa Rica, Central America, 109–17. Dordrecht: Springer Netherlands, 2009. http://dx.doi.org/10.1007/978-1-4020-8278-8_5.

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3

Jewson, D. H. y M. Briggs. "Benthic algae in Lough Neagh". En Monographiae Biologicae, 239–43. Dordrecht: Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-017-2117-2_13.

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4

Campana, Gabriela L., Katharina Zacher, Fernando R. Momo, Dolores Deregibus, Juan Ignacio Debandi, Gustavo A. Ferreyra, Martha E. Ferrario, Christian Wiencke y María L. Quartino. "Successional Processes in Antarctic Benthic Algae". En Antarctic Seaweeds, 241–64. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-39448-6_12.

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Croce, M. Emilia, M. Cecilia Gauna, Carolina Fernández, Ailen M. Poza y Elisa R. Parodi. "Biology and Ecology of the Benthic Algae". En The Bahía Blanca Estuary, 113–51. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-66486-2_6.

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Barattolo, F. "Mesozoic and Cenozoic Marine Benthic Calcareous Algae with Particular Regard to Mesozoic Dasycladaleans". En Calcareous Algae and Stromatolites, 504–40. Berlin, Heidelberg: Springer Berlin Heidelberg, 1991. http://dx.doi.org/10.1007/978-3-642-52335-9_22.

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Wilkinson, Martin y David A. Rendall. "The Role of Benthic Algae in Estuarine Pollution Assessment". En Estuarine Management and Quality Assessment, 71–81. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4615-9418-5_9.

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Cinelli, Francesco. "On the Biogeography of the Benthic Algae of the Mediterranean". En Mediterranean Marine Ecosystems, 49–56. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4899-2248-9_3.

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Heath, C. W. y W. J. Singleton. "A device for remote sampling of benthic algae under ice". En Biology of the Vestfold Hills, Antarctica, 169–71. Dordrecht: Springer Netherlands, 1988. http://dx.doi.org/10.1007/978-94-009-3089-6_16.

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Portielje, R. y L. Lijklema. "Kinetics of luxury uptake of phosphate by algae-dominated benthic communities". En Nutrient Dynamics and Biological Structure in Shallow Freshwater and Brackish Lakes, 349–58. Dordrecht: Springer Netherlands, 1994. http://dx.doi.org/10.1007/978-94-017-2460-9_31.

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Actas de conferencias sobre el tema "Benthic algae"

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Al-AShwal, Aisha Ahmed, Noora Al-Naimi, Jassim Al-Khayat, Bruno Giraldes, Najat Al-Omari, Noora Al-Fardi, Caesar Sorino y Ekhlas Abdelbari. "Distribution and Diversity of Benthic Marine Macroalgae in Islands around Qatar". En Qatar University Annual Research Forum & Exhibition. Qatar University Press, 2020. http://dx.doi.org/10.29117/quarfe.2020.0052.

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Extending into the Arabian Gulf, Qatar is surrounded by a number of islands mostly scattered by the eastern coastline. With the unique physical characteristics of the Gulf, which is a highly saline sea with high seawater temperatures, there is an urge need to investigate the macroalgae living in such harsh environment. Macroalgae plays an important role in the food web as they are primary producers and providers of food for other organisms. They also provide shelter and habitat in the marine ecosystem for herbivorous fish and other invertebrate animals. Additionally, macroalgae plays an outstanding role in reducing CO2 from the atmosphere and increasing the level of dissolved oxygen in their immediate environment. However, there are few studies on marine macroalgae in Qatar and no previous studies found related to macroalgae from the islands around Qatar. The present work contributes to the macroalgae research by providing the first survey of distribution and diversity of benthic marine macroalgae in islands around Qatar. The marine benthic green, red and brown macroalgae of intertidal and subtidal in marine zone areas around Qatar were collected during Qatar’s Islands project, which started 2018. The collected macroalgae are documented and a total of 67 species of macroalgae are recorded for all islands around Qatar, 24 Chlorophyta (Green algae), 25 Rhodophyta (Red algae) and 18 species Phaeophyta (Brown algae). The Red algae are dominant taxon in term of species richness, accounting for an average of 37% of the species at all study sites. The islands which had more species are Al-Beshaireya 58 Species, Al-Aaliya 53 Species, Sheraouh 48 Species, Janan 43 Species and Bu Felaita 37 Species. Our results show that islands located at eastern and southeastern coast of Qatar have more diversity of algae species than those located at the western and northwestern coast.

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Hanelore, Muntean. "BEGA�RIVER�BIOMONITORING�BY�USING�BENTHIC�ALGAE�AS�BIOINDICATORS". En SGEM2012 12th International Multidisciplinary Scientific GeoConference and EXPO. Stef92 Technology, 2012. http://dx.doi.org/10.5593/sgem2012/s13.v3007.

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"A re-circulating flow-lane photo-incubator for benthic algae experiments". En 2015 ASABE International Meeting. American Society of Agricultural and Biological Engineers, 2015. http://dx.doi.org/10.13031/aim.20152188866.

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Nebelsick, James, Andrea Mancosu y Davide Bassi. "BIOTIC INTERACTIONS BETWEEN ANIMALS AND PLANTS IN BENTHIC MARINE ENVIRONMENTS DOMINATED BY ECHINOIDS AND CORALLINE RED ALGAE FROM THE MIOCENE OF SARDINIA". En GSA 2020 Connects Online. Geological Society of America, 2020. http://dx.doi.org/10.1130/abs/2020am-357656.

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Leung, Tania y Elizabeth Swanner. "THE ROLE OF BENTHIC IRON DURING CYANOBACTERIAL HARMFUL ALGAL BLOOMS (CYANOHABS) OCCURRENCES". En 52nd Annual North-Central GSA Section Meeting - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018nc-313027.

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Smith, D. W., J. J. Warwick y C. H. Fritsen. "Modeling Nutrient Dynamics and Benthic Algal Relationships on the South Fork Humboldt River, NV". En World Environmental and Water Resources Congress 2011. Reston, VA: American Society of Civil Engineers, 2011. http://dx.doi.org/10.1061/41173(414)118.

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Kotta, Jonne, Helen Orav-Kotta y Tiina Paalme. "In situ Evidence on the Role of Benthic Invertebrates on the Decomposition of Drifting Algal Mats in a Brackish Water Ecosystem". En 2010 International Conference on Biosciences. IEEE, 2010. http://dx.doi.org/10.1109/biosciencesworld.2010.25.

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Informes sobre el tema "Benthic algae"

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Calomeni, Alyssa, Andrew McQueen, Ciera Kinley-Baird y Gerard Clyde. Identification and preventative treatment of overwintering cyanobacteria in sediments : a literature review. Engineer Research and Development Center (U.S.), agosto de 2022. http://dx.doi.org/10.21079/11681/45063.

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Freshwaters can experience growths of toxin-producing cyanobacteria or harmful algal blooms (HABs). HAB-producing cyanobacteria can develop akinetes, which are thick-enveloped quiescent cells akin to seeds in vascular plants or quiescent colonies that overwinter in sediment. Overwintering cells produce viable “seed beds” for HAB resurgences and preventative treatments may diminish HAB intensity. The purpose of this literature review was to identify (1) environmental factors triggering germination and growth of overwintering cells, (2) sampling, identification, and enumeration methods, and (3) feasibility of preventative algaecide treatments. Conditions triggering akinete germination (light ≥0.5 μmol m-2s-1, temperature 22-27℃) differ from conditions triggering overwintering Microcystis growth (temperature 15-30℃, nutrients, mixing). Corers or dredges are used to collect surficial (0-2 cm) sediment layers containing overwintering cells. Identification and enumeration via microscopy are aided by dilution, sieving, or density separation of sediment. Grow-out studies simulate environmental conditions triggering cell growth and provide evidence of overwintering cell viability. Lines of evidence supporting algaecide efficacy for preventative treatments include (1) field studies demonstrating scalability and efficacy of algaecides against benthic algae, (2) data suggesting similar sensitivities of overwintering and planktonic Microcystis cells to a peroxide algaecide, and (3) a mesocosm study demonstrating a decrease in HAB severity following preventative treatments. This review informs data needs, monitoring techniques, and potential efficacy of algaecides for preventative treatments of overwintering cells.

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Pokrzywinski, Kaytee, Kaitlin Volk, Taylor Rycroft, Susie Wood, Tim Davis y Jim Lazorchak. Aligning research and monitoring priorities for benthic cyanobacteria and cyanotoxins : a workshop summary. Engineer Research and Development Center (U.S.), agosto de 2021. http://dx.doi.org/10.21079/11681/41680.

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In 2018, the US Army Engineer Research and Development Center partnered with the US Army Corps of Engineers–Buffalo District, the US Environmental Protection Agency, Bowling Green State University, and the Cawthron Institute to host a workshop focused on benthic and sediment-associated cyanobacteria and cyanotoxins, particularly in the context of harmful algal blooms (HAB). Technical sessions on the ecology of benthic cyanobacteria in lakes and rivers; monitoring of cyanobacteria and cyanotoxins; detection of benthic and sediment-bound cyanotoxins; and the fate, transport, and health risks of cyanobacteria and their associated toxins were presented. Research summaries included the buoyancy and dispersal of benthic freshwater cyanobacteria mats, the fate and quantification of cyanotoxins in lake sediments, and spatial and temporal variation of toxins in streams. In addition, summaries of remote sensing methods, omic techniques, and field sampling techniques were presented. Critical research gaps identified from this workshop include (1) ecology of benthic cyanobacteria, (2) identity, fate, transport, and risk of cyanotoxins produced by benthic cyanobacteria, (3) standardized sampling and analysis protocols, and (4) increased technical cooperation between government, academia, industry, nonprofit organizations, and other stakeholders. Conclusions from this workshop can inform monitoring and management efforts for benthic cyanobacteria and their associated toxins.

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Benthic algae of benchmark streams in agricultural areas of eastern Wisconsin. US Geological Survey, 2001. http://dx.doi.org/10.3133/wri964038e.

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Nutrients, benthic algae, and stream quality during low streamflow in the Palouse River basin, Washington and Idaho. US Geological Survey, 1997. http://dx.doi.org/10.3133/wri964078.

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Distribution of fish, benthic invertebrate, and algal communities in relation to physical and chemical conditions, Yakima River basin, Washington, 1990. US Geological Survey, 1997. http://dx.doi.org/10.3133/wri964280.

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