Caridina nilotica in Lake Victoria: abundance, biomass, and diel vertical migration
dc.contributor.author | Lehman, John T. | en_US |
dc.contributor.author | Mbahinzireki, Godfrey B. | en_US |
dc.contributor.author | Mwebaza-Ndawula, Lucas | en_US |
dc.date.accessioned | 2006-09-08T20:50:11Z | |
dc.date.available | 2006-09-08T20:50:11Z | |
dc.date.issued | 1996-01 | en_US |
dc.identifier.citation | Lehman, John T.; Mbahinzireki, Godfrey B.; Mwebaza-Ndawula, Lucas; (1996). " Caridina nilotica in Lake Victoria: abundance, biomass, and diel vertical migration." Hydrobiologia 317(3): 177-182. <http://hdl.handle.net/2027.42/42890> | en_US |
dc.identifier.issn | 0018-8158 | en_US |
dc.identifier.issn | 1573-5117 | en_US |
dc.identifier.uri | https://hdl.handle.net/2027.42/42890 | |
dc.description.abstract | Caridina nilotica (Decapoda: Atyidae) in offshore waters of Lake Victoria were investigated with both day and night sampling over a period of two years. Offshore populations are mainly planktonic rather than benthic, and the animals exhibit diel vertical migrations into near-surface waters at night. These changes in diel abundance as well as the size-frequency distribution of the migrating shrimp suggest that the migratory behavior is in response to visual planktivory, because only the very smallest individuals (2–4 mm) remain in surface waters during the day. During October 1992, abundances were estimated both by vertical net sampling and by underwater video transect methods. Concordance was established between abundances estimated by the two methods. Only about 9% (night) to 14% (day) of the Caridina population appeared to be epibenthic. We suggest that the behavior of the animal is consistent with the hypothesis that it is not a strict detritivore as previously reported; rather it may engage in facultative planktivory, especially at night. | en_US |
dc.format.extent | 418893 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; 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 | Zooplankton Biomass | en_US |
dc.subject.other | Lake Victoria | en_US |
dc.subject.other | Diel Vertical Migration | en_US |
dc.subject.other | Caridina | en_US |
dc.subject.other | Chaoborus | en_US |
dc.title | Caridina nilotica in Lake Victoria: abundance, biomass, and diel vertical migration | 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 | Department of Biology and Center for Great Lakes and Aquatic Science, Natural Science Building, University of Michigan, 48109, Ann Arbor, MI, USA | en_US |
dc.contributor.affiliationother | Uganda Fisheries Research Institute, P.O. Box 343, Jinja, Uganda | en_US |
dc.contributor.affiliationother | Uganda Fisheries Research Institute, P.O. Box 343, Jinja, Uganda | en_US |
dc.contributor.affiliationumcampus | Ann Arbor | en_US |
dc.description.bitstreamurl | http://deepblue.lib.umich.edu/bitstream/2027.42/42890/1/10750_2004_Article_BF00036467.pdf | en_US |
dc.identifier.doi | http://dx.doi.org/10.1007/BF00036467 | 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.