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Journal articles on the topic 'Salt lake ecology Victoria'

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Author: Grafiati

Published: 10 December 2022

Last updated: 29 January 2023

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1

Webster-Brown, J., M. Gall, J. Gibson, S. Wood, and I. Hawes. "The biogeochemistry of meltwater habitats in the Darwin Glacier region (80°S), Victoria Land, Antarctica." Antarctic Science 22, no. 6 (December 2010): 646–61. http://dx.doi.org/10.1017/s0954102010000787.

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AbstractMeltwater habitats in the Darwin Glacier region, Victoria Land (80°S), were sampled in December 2007 and January 2009 to characterize their microbial and metazoan ecology, nutrient status and geochemistry. Targeted areas included terrestrial ponds of the Grant Valley, Lake Wellman, Tentacle Ridge and Diamond Hill, and supraglacial ponds and cryoconite holes of the lower Darwin Glacier. Geochemistry ranged from Na-Cl dominated terrestrial ponds to Na-HCO3dominated, dilute supraglacial ponds and cryoconites. All showed the nitrate enrichment typical of inland ponds of Victoria Land (up to 13 g.l-1NO3-N), with some precipitating nitratine (NaNO3) salt. Elevated pH indicated ongoing photosynthetic processes. Benthic microbial mats were thin and poorly developed, dominated by oscillatoriacean cyanobacteria. Nitrogen-fixing genera were generally absent and diatoms were rare. A large (20 μm long)Cyanothecespecies was the most abundant cyanobacterium in the water and in sediments of the cryoconites. DNA finger-printing identified distinct differences in cyanobacterial and bacterial community structure between the cryoconites, terrestrial ponds and ponds on glacial margins. Eleven metazoan species were identified, with rotifers being the most abundant. Pond substrate (terrestrial rock, ice-cored moraine or supraglacial ice) proved to be a more significant influence on biogeochemistry than other aspects of geography or climatic conditions.

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2

Tully, Benjamin J., Joanne B. Emerson, Karen Andrade, Jochen J. Brocks, Eric E. Allen, Jillian F. Banfield, and Karla B. Heidelberg. "De NovoSequences ofHaloquadratum walsbyifrom Lake Tyrrell, Australia, Reveal a Variable Genomic Landscape." Archaea 2015 (2015): 1–12. http://dx.doi.org/10.1155/2015/875784.

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Hypersaline systems near salt saturation levels represent an extreme environment, in which organisms grow and survive near the limits of life. One of the abundant members of the microbial communities in hypersaline systems is the square archaeon,Haloquadratum walsbyi. Utilizing a short-read metagenome from Lake Tyrrell, a hypersaline ecosystem in Victoria, Australia, we performed a comparative genomic analysis ofH. walsbyito better understand the extent of variation between strains/subspecies. Results revealed that previously isolated strains/subspecies do not fully describe the complete repertoire of the genomic landscape present inH. walsbyi. Rearrangements, insertions, and deletions were observed for the Lake Tyrrell derivedHaloquadratumgenomes and were supported by environmentalde novosequences, including shifts in the dominant genomic landscape of the two most abundant strains. Analysis pertaining to halomucins indicated that homologs for this large protein are not a feature common for all species ofHaloquadratum. Further, we analyzed ATP-binding cassette transporters (ABC-type transporters) for evidence of niche partitioning between different strains/subspecies. We were able to identify unique and variable transporter subunits from all five genomes analyzed and thede novoenvironmental sequences, suggesting that differences in nutrient and carbon source acquisition may play a role in maintaining distinct strains/subspecies.

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3

Wisenden, Brian D. "Paradise Lost in Lake Victoria." Ecology 78, no. 5 (July 1997): 1608. http://dx.doi.org/10.1890/0012-9658(1997)078[1608:plilv]2.0.co;2.

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4

Wisenden, Brian D., and Tijs Goldschmidt. "Darwin's Dreampond: Drama in Lake Victoria." Ecology 78, no. 5 (July 1997): 1608. http://dx.doi.org/10.2307/2266155.

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5

Johnson, Thomas C., Kerry Kelts, and Eric Odada. "The Holocene History of Lake Victoria." AMBIO: A Journal of the Human Environment 29, no. 1 (February 2000): 2–11. http://dx.doi.org/10.1579/0044-7447-29.1.2.

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6

Greenwood, P. H. "The Nile perch in Lake Victoria." Oryx 20, no. 4 (October 1986): 249. http://dx.doi.org/10.1017/s0030605300020305.

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7

Mugidde, Rose, Robert E. Hecky, Len L. Hendzel, and William D. Taylor. "Pelagic Nitrogen Fixation in Lake Victoria (East Africa)." Journal of Great Lakes Research 29 (January 2003): 76–88. http://dx.doi.org/10.1016/s0380-1330(03)70540-1.

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8

Cowx, I. G., M. van der Knaap, L. I. Muhoozi, and A. Othina. "Improving Fishery Catch Statistics for Lake Victoria." Aquatic Ecosystem Health & Management 6, no. 3 (September 2003): 299–310. http://dx.doi.org/10.1080/14634980301490.

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9

MITEMA, E. S., and F. K. GITAU. "Organochlorine residues in fish from Lake Victoria, Kenya." African Journal of Ecology 28, no. 3 (September 1990): 234–39. http://dx.doi.org/10.1111/j.1365-2028.1990.tb01156.x.

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10

OGARI, J., and M. VAN DER KNAAP. "Solarization of water hyacinth, Eichhornia crassipes , on Lake Victoria." Fisheries Management and Ecology 9, no. 6 (December 2002): 365–67. http://dx.doi.org/10.1046/j.1365-2400.2002.00303.x.

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11

Haynes, D., P. Rayment, K. Raynes, and PRL Mosse. "Laboratory-based investigation into the potential for algal proliferation in Lake Coleman, Victoria." Marine and Freshwater Research 45, no. 4 (1994): 625. http://dx.doi.org/10.1071/mf9940625.

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Lake Coleman received a discharge of highly coloured, treated pulp and paper mill effluent and domestic and industrial effluent from 1958 until the latter part of 1992. The colour of the lake waters is likely to become less intense following cessation of the discharge and this may affect the potential for algal growth. The estuarine diatom Phaeodactylum tricornutum was cultured in a range of concentrations of Lake Coleman water with and without pre-exposure to nutrient-rich Lake Coleman sediments. Under laboratory conditions, growth of P. tricornutum was significantly enhanced in Lake Coleman water compared with cultures grown in water collected from an adjacent unpolluted lake. Growth was further enhanced in solutions with additional pre-exposure to Lake Coleman sediments. Growth enhancement exhibited a linear relationship to solution orthophosphate concentrations. When the diatom was cultured under a range of light intensities produced by a range of dilutions of Lake Coleman water, growth was significantly reduced by high colour intensity. The possibility exists, therefore, for enhanced algal proliferation in Lake Coleman following cessation of effluent discharge.

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12

van der Knaap, M., M. J. Ntiba, and I. G. Cowx. "Key elements of fisheries management on Lake Victoria." Aquatic Ecosystem Health & Management 5, no. 3 (September 2002): 245–54. http://dx.doi.org/10.1080/14634980290031947.

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13

Kitchell, James F., Daniel E. Schindler, Richard Ogutu-Ohwayo, and Peter N. Reinthal. "THE NILE PERCH IN LAKE VICTORIA: INTERACTIONS BETWEEN PREDATION AND FISHERIES." Ecological Applications 7, no. 2 (May 1997): 653–64. http://dx.doi.org/10.1890/1051-0761(1997)007[0653:tnpilv]2.0.co;2.

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14

Gell, Peter A. "The Development of a Diatom Database for Inferring Lake Salinity, Western Victoria, Australia: Towards a Quantitative Approach for Reconstructing Past Climates." Australian Journal of Botany 45, no. 3 (1997): 389. http://dx.doi.org/10.1071/bt96036.

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The development of a modern data set of 156 diatom samples from salt lakes has provided evidence of the tolerance of a large number of taxa to the salinity of lake waters. Thirty taxa have been recorded from 30 or more samples and so have been well characterised. A further 42 taxa have been recorded from 10 or more samples. The lakes sampled range in salinity from the freshwater–oligosaline boundary to well into the hypersaline range, so the upper and lower salinity tolerance limits of many species were investigated. Canonical correspondence analysis of the data set showed that salinity was the most important of the tested parameters influencing the diatom assemblages in the samples. Randomisation tests have provided correlation values between measured and predicted salinity comparable with those gained from other major salt lake diatom data sets, suggesting that this set is a good predictor of lake salinity.

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15

Hamilton, Stuart E., Silviya M. Gallo, Noah Krach, Chrisphine S. Nyamweya, John K. Okechi, Christopher M. Aura, Zachary Ogari, Paige M. Roberts, and Les Kaufman. "The use of unmanned aircraft systems and high-resolution satellite imagery to monitor tilapia fish-cage aquaculture expansion in Lake Victoria, Kenya." Bulletin of Marine Science 96, no. 1 (January 1, 2020): 71–94. http://dx.doi.org/10.5343/bms.2019.0063.

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Lake Victoria, the largest lake in the tropics, has a storied history that includes recent shifts in ecology due to a variety of point and nonpoint source anthropogenic impacts. Among the expanding industries contributing to environmental impacts (if not properly managed) is the recent and rapid expansion of cage aquaculture of Nile tilapia (Oreochromis niloticus). As part of an effort to assess the ecological consequences of this new industry, unmanned aerial systems (UAS), very high-resolution satellite imagery, and geographic information systems (GIS) were used to map the tilapia fish cages in the Kenya portion of Lake Victoria, Africa. Understanding the impacts of the growth of commercial finfish cage culture within Lake Victoria requires a systems view which, through the use of UAS and satellite technologies, can provide spatial context and change detection. This synthesis of UAS, very high-resolution satellite imagery, and GIS has allowed for accurate and rapid mapping of inshore tilapia fish cages with high positional accuracy. The significance of these observations lies in the speed and detection accuracy in the methodology, allowing for rapid visualization and assessment of cage culture in the Kenyan portion of Lake Victoria. As of 2012, there were very few floating aquaculture finfish cages in the Kenyan portion of Lake Victoria. Using UAS, satellite, and GIS technologies, in 2018 the same portion of the lake was found to contain 4357 fish cages covering 62,132 m>2.

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16

Verschuren, Dirk, David N. Edgington, Hedy J. Kling, and Thomas C. Johnson. "Silica Depletion in Lake Victoria: Sedimentary Signals at Offshore Stations." Journal of Great Lakes Research 24, no. 1 (January 1998): 118–30. http://dx.doi.org/10.1016/s0380-1330(98)70804-4.

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17

Kateregga, Eseza, and Thomas Sterner. "Indicators for an invasive species: Water hyacinths in Lake Victoria." Ecological Indicators 7, no. 2 (April 2007): 362–70. http://dx.doi.org/10.1016/j.ecolind.2006.02.008.

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18

Witte, F., J. H. Wanink, and M. Kishe-Machumu. "Species Distinction and the Biodiversity Crisis in Lake Victoria." Transactions of the American Fisheries Society 136, no. 4 (July 2007): 1146–59. http://dx.doi.org/10.1577/t05-179.1.

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19

Basiita, R. K., C. Aruho, D. Kahwa, E. Nyatia, F. W. Bugenyi, and J. Rutaisire. "Differentiated gonochorism in Nile perchLates niloticusfrom Lake Victoria, Uganda." African Journal of Aquatic Science 36, no. 1 (April 2011): 89–96. http://dx.doi.org/10.2989/16085914.2011.559694.

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20

Riedmiller, Sibylle. "Lake Victoria fisheries: the Kenyan reality and environmental implications." Environmental Biology of Fishes 39, no. 4 (April 1994): 329–38. http://dx.doi.org/10.1007/bf00004802.

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21

Downing, Andrea S., Egbert H. van Nes, Jan H. Janse, Frans Witte, Ilse J. M. Cornelissen, Marten Scheffer, and Wolf M. Mooij. "Collapse and reorganization of a food web of Mwanza Gulf, Lake Victoria." Ecological Applications 22, no. 1 (January 2012): 229–39. http://dx.doi.org/10.1890/11-0941.1.

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22

Dítě, Daniel, Pavol Eliáš Jr., Zuzana Dítě, Vladimír Píš, and Róbert Šuvada. "Vegetation classification and ecology of Pannonian salt lake bed." Phytocoenologia 47, no. 4 (December 1, 2017): 329–44. http://dx.doi.org/10.1127/phyto/2017/0137.

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23

Meier, Joana Isabel, David Alexander Marques, Catherine Elise Wagner, Laurent Excoffier, and Ole Seehausen. "Genomics of Parallel Ecological Speciation in Lake Victoria Cichlids." Molecular Biology and Evolution 35, no. 6 (April 2, 2018): 1489–506. http://dx.doi.org/10.1093/molbev/msy051.

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24

Esteban, G. F., B. J. Finlay, J. L. Olmo, and P. A. Tyler. "Ciliated protozoa from a volcanic crater-lake in Victoria, Australia." Journal of Natural History 34, no. 2 (February 2000): 159–89. http://dx.doi.org/10.1080/002229300299598.

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25

Katunzi, E. F. B., J. Zoutendijk, T. Goldschmidt, J. H. Wanink, and F. Witte. "Lost zooplanktivorous cichlid from Lake Victoria reappears with a new trade." Ecology of Freshwater Fish 12, no. 4 (December 2003): 237–40. http://dx.doi.org/10.1046/j.1600-0633.2003.00023.x.

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26

Eggeling, W. J. "RINGING PALAEARCTIC WADERS AND OTHER BIRDS ON LAKE VICTORIA." Ibis 93, no. 2 (April 3, 2008): 312–13. http://dx.doi.org/10.1111/j.1474-919x.1951.tb05433.x.

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27

Van der Knaap, M. "Comparative analysis of fisheries restoration and public participation in Lake Victoria and Lake Tanganyika." Aquatic Ecosystem Health & Management 16, no. 3 (July 2013): 279–87. http://dx.doi.org/10.1080/14634988.2013.816618.

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28

Nakamura, Haruna, Mitsuto Aibara, Rei Kajitani, Hillary D. J. Mrosso, Semvua I. Mzighani, Atsushi Toyoda, Takehiko Itoh, Norihiro Okada, and Masato Nikaido. "Genomic Signatures for Species-Specific Adaptation in Lake Victoria Cichlids Derived from Large-Scale Standing Genetic Variation." Molecular Biology and Evolution 38, no. 8 (March 21, 2021): 3111–25. http://dx.doi.org/10.1093/molbev/msab084.

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Abstract The cichlids of Lake Victoria are a textbook example of adaptive radiation, as >500 endemic species arose in just 14,600 years. The degree of genetic differentiation among species is very low due to the short period of time after the radiation, which allows us to ascertain highly differentiated genes that are strong candidates for driving speciation and adaptation. Previous studies have revealed the critical contribution of vision to speciation by showing the existence of highly differentiated alleles in the visual opsin gene among species with different habitat depths. In contrast, the processes of species-specific adaptation to different ecological backgrounds remain to be investigated. Here, we used genome-wide comparative analyses of three species of Lake Victoria cichlids that inhabit different environments—Haplochromis chilotes, H. sauvagei, and Lithochromis rufus—to elucidate the processes of adaptation by estimating population history and by searching for candidate genes that contribute to adaptation. The patterns of changes in population size were quite distinct among the species according to their habitats. We identified many novel adaptive candidate genes, some of which had surprisingly long divergent haplotypes between species, thus showing the footprint of selective sweep events. Molecular phylogenetic analyses revealed that a large fraction of the allelic diversity among Lake Victoria cichlids was derived from standing genetic variation that originated before the adaptive radiation. Our analyses uncovered the processes of species-specific adaptation of Lake Victoria cichlids and the complexity of the genomic substrate that facilitated this adaptation.

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29

FerdinardNyanaro, Isaboke, Albert Getabu, and Evans Okemwa. "EVALUATION OF THE EFFECTS OF SALT CONCENTRATIONS ON THE THERMODYNAMIC PROPERTIES OF WATERS IN LAKE VICTORIA." International Journal of Advanced Research 7, no. 4 (April 30, 2019): 29–34. http://dx.doi.org/10.21474/ijar01/8786.

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30

Chessman, BC. "Phytoplankton of the La Trobe River, Victoria." Marine and Freshwater Research 36, no. 1 (1985): 115. http://dx.doi.org/10.1071/mf9850115.

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Phytoplankton was sampled on a monthly basis for 1 year at five stations on the La Trobe River in Gippsland, Victoria. In the upper, mostly forested, reaches of the river, chlorophyll a concentrations and cell densities were uniformly very low, and the dominant algae were detached benthic diatoms and flagellated species. In the plains section of the river, downstream of an impoundment (Lake Narracan), spring and autumn blooms occurred, with a marked reduction in abundance in midsummer and midwinter. The lowland planktonic flora was dominated by centric diatoms, particularly Melosira distans in autumn and Skeletonema potamos in spring.

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31

Pendleton, Maya C., Samuel Sedgwick, Karin M. Kettenring, and Trisha B. Atwood. "Ecosystem Functioning of Great Salt Lake Wetlands." Wetlands 40, no. 6 (July 17, 2020): 2163–77. http://dx.doi.org/10.1007/s13157-020-01333-1.

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32

Cowx, I. G., D. Rollins, and R. Tumwebaze. "Effect ofLigula intestinalison the reproductive capacity ofRastrineobola argenteain Lake Victoria." Journal of Fish Biology 73, no. 9 (December 2008): 2249–60. http://dx.doi.org/10.1111/j.1095-8649.2008.02058.x.

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33

Andama, M., J. B. Lejju, and C. U. Tolo. "Late holocene trends of phytoplankton productivity and anoxia as inferred from diatom and geochemical proxies in Lake Victoria, Eastern Africa." Biogeosciences Discussions 10, no. 11 (November 12, 2013): 17663–82. http://dx.doi.org/10.5194/bgd-10-17663-2013.

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Abstract. Lake Victoria ecosystem has undergone major ecological changes in the recent decades. Sedimentary diatom analysis and Fe / Mn determined by Energy Dispersive X-ray Fluorescence (EDXRF) have provided phytoplankton (diatom) productivity and the resultant anoxia (Fe / Mn) in Lake Victoria at Napoleon Gulf during the late Holocene (1778 cal yr BP (calibrated years before present) to 2008 AD) with radiocarbon dates determined using Accelerator Mass Spectrometry standard method. The results showed that increased total diatom counts in Napoleon Gulf during the late Holocene correspond with increased Fe / Mn ratio (anoxia) in some of the profiles and not in others and in most cases those that correspond correlate very well with increased eutrophication from nitrate input (Total Nitrogen, TN). Therefore slightly increased anoxia not related to increased diatom productivity was recorded in Lake Victoria at Napoleon Gulf from the period 1778 to 1135 cal yr BP. There was slightly increased diatom productivity at Napoleon Gulf from the period 857 to 758 cal yr BP but it did not increase anoxia in the lake. The period 415 cal yr BP to 2008 AD recorded increased anoxia at Napoleon Gulf related to high diatom productivity especially from 415 to 390 cal yr BP and 191 cal yr BP to 2008 AD.

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34

Timms, BV. "Limnology of Lake Buchanan, a tropical saline lake, and associated pools, of North Queensland." Marine and Freshwater Research 38, no. 6 (1987): 877. http://dx.doi.org/10.1071/mf9870877.

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During 1974-1984, Lake Buchanan and seven peripheral pools usually contained water for only a few months each year, commencing in late summer. They ranged in salinity from 1 to 202 g l-1, their waters were dominated by sodium chloride, but with Ca2+/Mg2+ ratios of c. 1, and were generally alkaline. The fauna of 53 species included three halobionts (e.g. Parartemia minuta, Diacypris compacts), 18 halophilics (e.g. Mytilocypris splendida, Trigonocypris globulosa, Microcyclops dengizicus) and many salt- tolerant freshwater forms, mainly insects. Overall, the fauna was distinctly Australian, but some prominent taxa found in southern salt lakes were absent and others were replaced by local endemics and tropical species. Past climatic cycles have probably influenced the composition of the fauna.

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35

van der Knaap, Martin, and Willem Ligtvoet. "Is Western consumption of Nile perch from Lake Victoria sustainable?" Aquatic Ecosystem Health & Management 13, no. 4 (November 15, 2010): 429–36. http://dx.doi.org/10.1080/14634988.2010.526088.

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36

VAN DER MEER, HENNY J., JACCO C. VAN RIJSSEL, LEON C. WAGENAAR, and FRANS WITTE. "Photopic adaptations to a changing environment in two Lake Victoria cichlids." Biological Journal of the Linnean Society 106, no. 2 (March 14, 2012): 328–41. http://dx.doi.org/10.1111/j.1095-8312.2012.01859.x.

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37

Goldschmidt, T., F. Witte, and J. de Visser. "Ecological Segregation in Zooplanktivorous Haplochromine Species (Pisces: Cichlidae) from Lake Victoria." Oikos 58, no. 3 (August 1990): 343. http://dx.doi.org/10.2307/3545226.

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38

OKEDI, J. Y. "Observations on the benthos of Murchison Bay, Lake Victoria, East Africa." African Journal of Ecology 28, no. 2 (June 1990): 111–22. http://dx.doi.org/10.1111/j.1365-2028.1990.tb01143.x.

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39

Odhiambo, Elizabeth A., Michaela Kerschbaumer, Lisbeth Postl, and Christian Sturmbauer. "Morphometric differentiation among haplochromine cichlid fish species of a satellite lake of Lake Victoria." Journal of Zoological Systematics and Evolutionary Research 49, no. 3 (June 7, 2011): 216–23. http://dx.doi.org/10.1111/j.1439-0469.2011.00624.x.

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40

Ramlal, Patricia S., Fred W. B. Bugenyi, George W. Kling, Jerome O. Nriagu, John W. M. Rudd, and Linda M. Campbell. "Mercury Concentrations in Water, Sediment, and Biota from Lake Victoria, East Africa." Journal of Great Lakes Research 29 (January 2003): 283–91. http://dx.doi.org/10.1016/s0380-1330(03)70555-3.

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41

Badamasi, Inuwa, Robinson Odong, and Charles Masembe. "Implications of increasing pollution levels on commercially important fishes in Lake Victoria." Journal of Great Lakes Research 45, no. 6 (December 2019): 1274–89. http://dx.doi.org/10.1016/j.jglr.2019.09.024.

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42

Webster, Jenny, Ian Hawes, Malcolm Downes, Michael Timperley, and Clive Howard-Williams. "Evidence for regional climate change in the recent evolution of a high latitude pro-glacial lake." Antarctic Science 8, no. 1 (March 1996): 49–59. http://dx.doi.org/10.1017/s0954102096000090.

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Lake Wilson, a perennially ice-capped, deep (>100 m) lake at 80°S in southern Victoria Land was investigated in January 1993. Water chemistry and physical structure showed three distinct layers; an upper c. 35 m mixed layer of low salinity, moderately turbid water; a less turbid mid layer, 20 m thick of slightly higher salinity and supersaturated with oxygen; and a deep 20 m brackish layer (conductivity c. 4000 μS cm−1) with anoxic conditions in the lower 5 m. Extreme supersaturation of N2O (up to 400 times air saturation) together with high nitrate concentration (4000 mg m−3) was recorded in the deep layer. Phytoplankton biomass and photosynthetic activity was confined to the upper mixed layer and the band of supersaturated dissolved oxygen located at 40–55 m appears to represent a relict layer from when the lake level was lower. The evidence from a comparison of profiles between 1975 and 1993 suggests that Lake Wilson has risen 25 m since 1975, synchronous with a period of lake level rise in the McMurdo Dry Valleys lakes to the north at 77°S. Geochemical diffusion models indicate that Lake Wilson had evaporated to a smaller brine lake about 1000 yrs BP, which also fits the pattern shown by the McMurdo Dry Valleys lakes. Climate changes influencing lake levels have thus covered a wide area of southern Victoria Land.

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43

Goldschmidt, Tijs. "Egg Mimics in Haplochromine Cichlids (Pisces, Perciformes) from Lake Victoria." Ethology 88, no. 3 (April 26, 2010): 177–90. http://dx.doi.org/10.1111/j.1439-0310.1991.tb00273.x.

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44

Johnston, Sir Harry. "XX.-On the Occurrence of BalAEeniceps rex on Lake Victoria." Ibis 44, no. 2 (April 3, 2008): 334–36. http://dx.doi.org/10.1111/j.1474-919x.1902.tb03597.x.

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45

Dijkstra, Peter D., O. Seehausen, R. E. Fraterman, and Ton G. G. Groothuis. "Learned aggression biases in males of Lake Victoria cichlid fish." Animal Behaviour 76, no. 3 (September 2008): 649–55. http://dx.doi.org/10.1016/j.anbehav.2008.03.013.

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46

Hall, K. R. L., and J. S. Gartlan. "ECOLOGY AND BEAVIOUR OF THE VERVET MONKEY, CERCOPITHECUS AETHIOPS, LOLUI ISLAND, LAKE VICTORIA." Proceedings of the Zoological Society of London 145, no. 1 (August 20, 2009): 37–56. http://dx.doi.org/10.1111/j.1469-7998.1965.tb01999.x.

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47

Liu, Yongwei, Guiping Wu, Xingwang Fan, Guojing Gan, Wen Wang, and Yuanbo Liu. "Hydrological impacts of land use/cover changes in the Lake Victoria basin." Ecological Indicators 145 (December 2022): 109580. http://dx.doi.org/10.1016/j.ecolind.2022.109580.

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48

Sluiter, I. R. K., and R. F. Parsons. "On the Holocene Palaeoenvironmental Record from Lake Tyrrell, Northwestern Victoria, Australia-a Reply." Journal of Biogeography 22, no. 1 (January 1995): 149. http://dx.doi.org/10.2307/2846079.

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49

Pearson, Osbjorn M., Ethan C. Hill, Daniel J. Peppe, Alex Van Plantinga, Nick Blegen, J. Tyler Faith, and Christian A. Tryon. "A Late Pleistocene human humerus from Rusinga Island, Lake Victoria, Kenya." Journal of Human Evolution 146 (September 2020): 102855. http://dx.doi.org/10.1016/j.jhevol.2020.102855.

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50

Boon, PI, and S. Cain. "Nitrogen cycling in salt-marsh and mangrove sediments at Western Port, Victoria." Marine and Freshwater Research 39, no. 5 (1988): 607. http://dx.doi.org/10.1071/mf9880607.

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The metabolism of organic nitrogen compounds in sediments from salt-marsh (Sarcocornia quinqueflora) and mangrove (Avicennia marina) areas at Western Port, Victoria, was investigated. Organic nitrogen compounds were metabolized at potential rates of up to 3.9 �mol cmF3 day-1 for amino acids, 23 �mol cm-3 day-( for dipeptides, and 5 �mol cm-1 day-1 for an amide. These were higher than the rate of ammonium regeneration in the absence of added substrate (<0.08 �mol cm-3 day-1); this indicates that organic nitrogenous compounds play a major role in nutrient cycling in coastal sediments. Rates of some transformations were highly correlated with sediment organic-matter content, total nitrogen content or concentration of soluble reactive phosphorus in the sediments, but overall there were few significant correlations between metabolic rates and edaphic conditions. Degradation of organic nitrogenous compounds in these sediments is likely to be influenced strongly by the availability of phosphorus, the quantity and quality of detrital inputs, and the size and activity of microbial populations.

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