Current Search: Fertilization (x)
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Title
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Differential fertilization success between two populations of eastern oyster, Crassostrea virginica.
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Creator
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Zhang, H., Scarpa, John, Hare, M. P.
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Date Issued
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2010
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PURL
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http://purl.flvc.org/FCLA/DT/3340525
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Subject Headings
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Eastern oyster, Crassostrea virginica, Fertilization (Biology), Speciation
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Format
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Document (PDF)
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Title
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Does residential landscape type affect nitrogen runoff and leaching?.
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Creator
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Erickson, John Erickson., Florida Atlantic University, Volin, John C.
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Abstract/Description
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Intensely maintained turfgrass landscapes have some potential for loss of fertilizer nitrogen (N) in both runoff and leaching. Lower maintenance vegetation used in mixed-species landscapes may reduce N leaching and runoff, which is important for reducing environmental pollution of surface and ground waters. However, few studies have examined this paradigm. Therefore, we constructed a field-scale facility to compare fertilizer N runoff and leaching between St. Augustinegrass (Stenotaphrum...
Show moreIntensely maintained turfgrass landscapes have some potential for loss of fertilizer nitrogen (N) in both runoff and leaching. Lower maintenance vegetation used in mixed-species landscapes may reduce N leaching and runoff, which is important for reducing environmental pollution of surface and ground waters. However, few studies have examined this paradigm. Therefore, we constructed a field-scale facility to compare fertilizer N runoff and leaching between St. Augustinegrass (Stenotaphrum secundatum (Walt.) Kuntze cv. 'Floratam') and a mixed-species landscape designed by the Florida Yards and Neighborhoods (FYN) program. A blended granular fertilizer was applied at a rate of 300 and 150 kg N ha-1 yr -1 on the turfgrass and mixed-species, respectively. During the 12-month study only one minor runoff event occurred (<0.2 cm) and N losses were insignificant. Annual N leaching losses were significantly greater on the mixed-species landscape, resulting in 4.80 g N m-2 compared to 0.41 g N m-2 for the St. Augustinegrass.
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Date Issued
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2000
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PURL
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http://purl.flvc.org/fcla/dt/15761
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Subject Headings
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Nitrogen fertilizers, Grasses--Fertilizers--Florida, Soils--Nitrogen content, Soils--Leaching
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Format
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Document (PDF)
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Title
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Reproductive success in large populations: empirical measures and theoretical predictions of fertilization in the sea biscuit Clypeaster rosaceus.
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Creator
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Levitan, D. R., Young, Craig M., Harbor Branch Oceanographic Institute
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Date Issued
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1995
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PURL
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http://purl.flvc.org/FCLA/DT/3331900
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Subject Headings
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Clypeasteroida, Sand dollars--Reproduction, Fertilization, Allee effect, Sea biscuits
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Format
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Document (PDF)
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Title
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The biology of external fertilization indeep-sea echinoderms.
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Creator
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Young, Craig M., Harbor Branch Oceanographic Institute
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Date Issued
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1994
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PURL
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http://purl.flvc.org/fau/fd/FA00007333
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Subject Headings
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Echinoderms, Fertilization (Biology), Spawning, Deep-sea biology, Benthos
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Format
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Document (PDF)
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Title
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Estimating fertilization success in marine benthic invertebrates: a case study with the tropical sea star Oreaster reticulatus.
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Creator
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Metaxas, Anna, Scheibling, R. E., Young, Craig M., Harbor Branch Oceanographic Institute
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Date Issued
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2002
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PURL
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http://purl.flvc.org/FCLA/DT/3350889
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Subject Headings
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Starfishes, Fertilization (Biology), Marine invertebrates, Spawning, Case studies
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Format
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Document (PDF)
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Title
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Ultrastructural differences in the eggs and ovarian follicle cells of Capitella (Polychaeta) sibling species.
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Creator
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Eckelbarger, Kevin J., Grassle, J. P., Harbor Branch Oceanographic Institute
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Date Issued
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1983
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PURL
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http://purl.flvc.org/FCLA/DT/3171584
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Subject Headings
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Polychaeta, Marine animals --Eggs, Annelida --Eggs, Fertilization, Larvae
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Format
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Document (PDF)
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Title
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The Effect of Fluid Flow on Human Sperm Fertility.
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Creator
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Rappa, Kari, Asghar, Waseem, Florida Atlantic University, College of Engineering and Computer Science, Department of Computer and Electrical Engineering and Computer Science
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Abstract/Description
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Current sperm processing methods used in assisted reproductive technologies can cause damage to the sperm cell. New ways that mimic the natural guidance mechanisms present in the female genital tract may offer ways to sort sperm with better fertility parameters. Sperm that respond to these cues may have better over sperm health. Human sperm exhibit positive rheotaxis by orienting and swimming against the fluid released by the female genital tract. At certain flow rates sperm can actively...
Show moreCurrent sperm processing methods used in assisted reproductive technologies can cause damage to the sperm cell. New ways that mimic the natural guidance mechanisms present in the female genital tract may offer ways to sort sperm with better fertility parameters. Sperm that respond to these cues may have better over sperm health. Human sperm exhibit positive rheotaxis by orienting and swimming against the fluid released by the female genital tract. At certain flow rates sperm can actively orient and swim against the flow. Sperm retrieved that exhibit positive rheotaxis have higher motility and better morphology than the original semen sample.
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Date Issued
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2017
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PURL
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http://purl.flvc.org/fau/fd/FA00004938, http://purl.flvc.org/fau/fd/FA00004938
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Subject Headings
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Human reproduction--Immunological aspects., Fertility, Human., Cell separation., Reproductive health., Cilia and ciliary motion., Spermatozoa--Motility.
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Format
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Document (PDF)