In situ nutrient assays of periphyton growth in a lowland Costa Rican stream
dc.contributor.author | Pringle, Catherine M. | en_US |
dc.contributor.author | Paaby-Hansen, Pia | en_US |
dc.contributor.author | Vaux, Peter D. | en_US |
dc.contributor.author | Goldman, Charles R. | en_US |
dc.date.accessioned | 2006-09-08T20:49:00Z | |
dc.date.available | 2006-09-08T20:49:00Z | |
dc.date.issued | 1986-03 | en_US |
dc.identifier.citation | Pringle, Catherine M.; Paaby-Hansen, Pia; Vaux, Peter D.; Goldman, Charles R.; (1986). " In situ nutrient assays of periphyton growth in a lowland Costa Rican stream." Hydrobiologia 134(3): 207-213. <http://hdl.handle.net/2027.42/42872> | en_US |
dc.identifier.issn | 0018-8158 | en_US |
dc.identifier.issn | 1573-5117 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/42872 | |
dc.description.abstract | Nutrient limitation of primary production was experimentally assessed using an in situ bioassay technique in the Quebrada Salto, a third-order tropical stream draining the northern foothills of the Cordillera Central in Costa Rica. Bioassays employed artificial substrata enriched with nutrients that slowly diffuse through an agar-sand matrix (Pringle & Bowers, 1984). Multiple comparisons of regression coefficients, describing chlorophyll- a accrual through time for different nutrient treatments, revealed positive micronutrient effect(s). Micronutrient treatment combinations (Fe, B, Mn, Zn, Co, Mo, EDTA), supplemented with and without nitrate and phosphate, exhibited significantly greater chlorophyll- a accrual over all other treatments (P < 0.05), supporting over three times that of the control after 14-d of substratum colonization. Neither of the major nutrients (N or P) produced a significant stimulation, although the N treatment displayed ≃50% more chlorophyll- a than the control after 14-d. Similarly, Si, EDTA, and Si + N + P treatments did not exhibit chlorophyll- a response curves that were significantly different from the control. During the experiment, mean NH 4 -N and (NO 2 + NO 3 )-N concentrations in the Salto were 2.0 µM (28.6 µg · l −1 ) and 7.2 µM (100.2 µg · l −1 ), respectively. High concentrations of PO 4 -P ( = 2.0 µM; 60.9 µg · l −1 ) and TP ( = 3.0 µM; 94.0 µg · l −1 ) were also found, and consequently low molar N:P ratios = 4.7). Despite the potential for N limitation in the system, both N and P appear to be at growth saturating levels. This may be due to micronutrient limitation and/or light limitation of periphyton growth in densely shaded upstream portions of the stream. | en_US |
dc.format.extent | 539598 bytes | |
dc.format.extent | 3115 bytes | |
dc.format.mimetype | application/pdf | |
dc.format.mimetype | text/plain | |
dc.language.iso | en_US | |
dc.publisher | Kluwer Academic Publishers; Dr W. Junk Publishers ; Springer Science+Business Media | en_US |
dc.subject.other | Life Sciences | en_US |
dc.subject.other | Ecology | en_US |
dc.subject.other | Hydrobiology | en_US |
dc.subject.other | In Situ Bioassays | en_US |
dc.subject.other | Periphyton | en_US |
dc.subject.other | Tropical Stream | en_US |
dc.title | In situ nutrient assays of periphyton growth in a lowland Costa Rican stream | en_US |
dc.type | Article | en_US |
dc.subject.hlbsecondlevel | Natural Resources and Environment | en_US |
dc.subject.hlbsecondlevel | Ecology and Evolutionary Biology | en_US |
dc.subject.hlbtoplevel | Science | en_US |
dc.description.peerreviewed | Peer Reviewed | en_US |
dc.contributor.affiliationum | School of Natural Resources, The University of Michigan, 48109, Ann Arbor, MI, USA; Department of Botany, The University of California, 94720, Berkeley, CA, USA | en_US |
dc.contributor.affiliationother | Division of Environmental Studies, The University of California, 95616, Davis, CA, USA | en_US |
dc.contributor.affiliationother | Division of Environmental Studies, The University of California, 95616, Davis, CA, USA | en_US |
dc.contributor.affiliationother | Division of Environmental Studies, The University of California, 95616, Davis, CA, USA | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/42872/1/10750_2004_Article_BF00008489.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1007/BF00008489 | en_US |
dc.identifier.source | Hydrobiologia | en_US |
dc.owningcollname | Interdisciplinary and Peer-Reviewed |
Files in this item
Remediation of Harmful Language
The University of Michigan Library aims to describe library materials in a way that respects the people and communities who create, use, and are represented in our collections. Report harmful or offensive language in catalog records, finding aids, or elsewhere in our collections anonymously through our metadata feedback form. More information at Remediation of Harmful Language.
Accessibility
If you are unable to use this file in its current format, please select the Contact Us link and we can modify it to make it more accessible to you.