Log in

Relevant bibliographies by topics / Black lake / Journal articles

To see the other types of publications on this topic, follow the link: Black lake.

Journal articles on the topic 'Black lake'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Black lake.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Moreira, Amanda L., and Eric B. Taylor. "The origin and genetic divergence of “black” kokanee, a novel reproductive ecotype of Oncorhynchus nerka." Canadian Journal of Fisheries and Aquatic Sciences 72, no. 10 (2015): 1584–95. http://dx.doi.org/10.1139/cjfas-2015-0145.

Full text

Abstract:

Kokanee and sockeye salmon are the freshwater-resident and anadromous forms, respectively, of Oncorhynchus nerka. Unique populations of “black” kokanee are found in Lake Saiko, Japan, and in Anderson and Seton lakes in the southwestern interior of British Columbia. They are distinct from other populations of O. nerka in that black kokanee display black nuptial colouration and they spawn between 20 to 70 m below the surface of lakes in the winter or early spring. Analysis of mitochondrial DNA and nine microsatellite loci supported the hypothesis that black kokanee in Lake Saiko and in Anderson

APA, Harvard, Vancouver, ISO, and other styles

2

Becker, Arnfried, Brigitta Ammann, Flavio S. Anselmetti, et al. "Paleoenvironmental studies on Lake Bergsee, Black Forest, Germany." Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 240, no. 3 (2006): 405–45. http://dx.doi.org/10.1127/njgpa/240/2006/405.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Adams, W. P., and D. C. Lasenby. "The Roles of Snow, Lake Ice and Lake Water in the Distribution of Major Ions in the Ice Cover of a Lake." Annals of Glaciology 7 (1985): 202–7. http://dx.doi.org/10.1017/s0260305500006170.

Full text

Abstract:

The stratigraphic variability of ion concentration in lake ice was examined and related to the processes of lake-ice formation. Ice blocks obtained from Elizabeth Lake, Labrador and Knob Lake, Quebec showed marked vertical variation in the concentration of major ions, with peaks in conductivity occurring in the white ice and an overall increase in conductivity upwards from the black-ice/white-ice interface to the top of the block. Exsolution of ions from the black ice into the water body appears to be very efficient, producing low concentrations of ions in the black ice and high concentrations

APA, Harvard, Vancouver, ISO, and other styles

4

Adams, W. P., and D. C. Lasenby. "The Roles of Snow, Lake Ice and Lake Water in the Distribution of Major Ions in the Ice Cover of a Lake." Annals of Glaciology 7 (1985): 202–7. http://dx.doi.org/10.3189/s0260305500006170.

Full text

Abstract:

The stratigraphic variability of ion concentration in lake ice was examined and related to the processes of lake-ice formation. Ice blocks obtained from Elizabeth Lake, Labrador and Knob Lake, Quebec showed marked vertical variation in the concentration of major ions, with peaks in conductivity occurring in the white ice and an overall increase in conductivity upwards from the black-ice/white-ice interface to the top of the block. Exsolution of ions from the black ice into the water body appears to be very efficient, producing low concentrations of ions in the black ice and high concentrations

APA, Harvard, Vancouver, ISO, and other styles

5

Filipic, Brankica, Katarina Novovic, David J. Studholme, et al. "Shotgun metagenomics reveals differences in antibiotic resistance genes among bacterial communities in Western Balkans glacial lakes sediments." Journal of Water and Health 18, no. 3 (2020): 383–97. http://dx.doi.org/10.2166/wh.2020.227.

Full text

Abstract:

Abstract Long-term overuse of antibiotics has driven the propagation and spreading of antibiotic resistance genes (ARGs) such as efflux pumps in the environment, which can be transferred to clinically relevant pathogens. This study explored the abundance and diversity of ARGs and mobile genetic elements within bacterial communities from sediments of three Western Balkans glacial lakes: Plav Lake (high impact of human population), Black Lake (medium impact of human population) and Donje Bare Lake (remote lake, minimal impact of human population) via shotgun metagenomics. Assembled metagenomic s

APA, Harvard, Vancouver, ISO, and other styles

6

Cintra, Renato. "Ecological Gradients Influencing Waterbird Communities in Black Water Lakes in the Anavilhanas Archipelago, Central Amazonia." International Journal of Ecology 2012 (2012): 1–21. http://dx.doi.org/10.1155/2012/801683.

Full text

Abstract:

For the first time, and in a large spatial scale, the influence of ecological properties on the aquatic bird community of black water lakes in Brazilian Amazonia is evaluated. Bird surveys were conducted in 45 lakes. A total of 3626 individuals in 48 bird species were recorded; of these, 31 are aquatic, and 18 of these are primarily piscivorous. Bird richness and abundance were not significantly related to lake shape and productivity but were influenced by hydrological period (low versus high), water depth, transparency, lake isolation, and habitat richness. Matrices of bird species by lake we

APA, Harvard, Vancouver, ISO, and other styles

7

Jacobson, Lawrence D., Wayne R. MacCallum, and George R. Spangler. "Biomass Dynamics of Lake Superior Lake Herring (Coregonus artedii): Application of Schnute's Difference Model." Canadian Journal of Fisheries and Aquatic Sciences 44, S2 (1987): s275—s288. http://dx.doi.org/10.1139/f87-329.

Full text

Abstract:

Schnute's (1985. Can. J. Fish. Aquat. Sci. 42: 414–429) difference model was used to study the biomass dynamics of lake herring (Coregonus artedii) in Thunder Bay and Black Bay, Lake Superior, during 1948–79. Recruitment to both fisheries appeared to be independent of escapement during previous years. Abundance of lake herring in Black Bay varied without trend during the study period despite a strong peak in effective fishing effort during 1968–70 and a general trend of increasing effort throughout the study period. Abundance of Thunder Bay lake herring declined during 1948–50 and 1959–67 and

APA, Harvard, Vancouver, ISO, and other styles

8

Michalczyk, Zdzisław, Stanisław Chmiel, and Marek Turczyński. "Lake water stage dynamics in the Łęczna-Włodawa Lake District in 1991-2010." Limnological Review 11, no. 3 (2011): 113–22. http://dx.doi.org/10.2478/v10194-011-0033-1.

Full text

Abstract:

Lake water stage dynamics in the Łęczna-Włodawa Lake District in 1991-2010In the years 1991-2010 the water stages of 38 lakes in the Łęczna-Włodawa Lake District were observed. Water stage dynamics of the Łęczna-Włodawa lakes was varied. A multi-annual trend with seasonal water stage variability was clearly observable. Low water stages were observed in the years 1994-1996 and 2004-2005, whereas the highest water stages were reported for 2002 and 2010. The water stages of Lake Piaseczno, the deepest lake, were consistent with solar activity changes. Land improvement works in the Łęczna-Włodawa

APA, Harvard, Vancouver, ISO, and other styles

9

Elliott, R. T. "Lake Nakuru Black Rhinoceros Sanctuary." Oryx 26, no. 3 (1992): 174–75. http://dx.doi.org/10.1017/s0030605300023656.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Ansell, W. F. H. "Lake Nakuru Black Rhinoceros Sanctuary." Oryx 26, no. 4 (1992): 236. http://dx.doi.org/10.1017/s0030605300023784.

Full text

APA, Harvard, Vancouver, ISO, and other styles

11

Lever, Christopher. "Lake Nakuru Black Rhinoceros Sanctuary." Oryx 24, no. 2 (1990): 90–94. http://dx.doi.org/10.1017/s0030605300034736.

Full text

Abstract:

In an attempt to stem the decline of the black rhinoceros Diceros bicornis in Kenya, the Rhino Rescue Charitable Appeal Trust was formed in England in 1985. Within a year work on the first sanctuary, in the Lake Nakuru National Park, had begun. The sanctuary was opened in 1987, when 17 rhinos from Mr Courtland Parfet's private ranch at Solio joined the wo animals already in Nakuru. A further 11 females are due to be added to the park shortly. Rhino Rescue, of which the author is a patron and trustee, is also developing its own education programme, and is contributing to other rhino sanctuaries

APA, Harvard, Vancouver, ISO, and other styles

12

Eskola, T., and V. Peuraniemi. "Natural and anthropogenic impacts on the composition of lake sediments." Mineralogical Magazine 72, no. 1 (2008): 411–13. http://dx.doi.org/10.1180/minmag.2008.072.1.411.

Full text

Abstract:

AbstractLake sediments were studied from four lakes in environmentally different areas in northern Finland. Lakes Pyykösjärvi and Kuivasjärvi are situated near roads with heavy traffic and the city of Oulu. Lakes Martinlampi and Umpilampi are small lakes in a forest area with no immediate human impact nearby. The concentration of Pb increases in the upper parts of the sedimentary columns of Lake Kuivasjärvi and Lake Pyykösjärvi. This is interpreted as being an anthropogenic effect related to heavy traffic in the area and use of Lake Pyykösjärvi as an airport during World War II. High Ni and Zn

APA, Harvard, Vancouver, ISO, and other styles

13

Burkhard;, M. "The Black Sea: A Freshwater Lake?" Science 280, no. 5363 (1998): 499g—499. http://dx.doi.org/10.1126/science.280.5363.499g.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Baumann, Paul C., Michael J. Mac, Stephen B. Smith, and John C. Harshbarger. "Tumor Frequencies in Walleye (Stizostedion vitreum) and Brown Bullhead (Ictalurus nebulosus) and Sediment Contaminants in Tributaries of the Laurentian Great Lakes." Canadian Journal of Fisheries and Aquatic Sciences 48, no. 9 (1991): 1804–10. http://dx.doi.org/10.1139/f91-213.

Full text

Abstract:

To better characterize neoplasm epizootics in the Great Lakes basin and their association with families of contaminants, we sampled five locations: the Fox and Menominee rivers, Lake Michigan; Munuscong Lake, St. Mary's River; and the Black and Cuyahoga rivers, Lake Erie. Frequencies of external and liver tumors were determined for brown bullhead (Ictalurus nebulosus) from all locations except the Black River and for walleye (Stizostedion vitreum) from the Lake Michigan and St. Mary's River sites. Sediment samples were analyzed for metals, polychlorinated aromatics, and polynuclear aromatic hy

APA, Harvard, Vancouver, ISO, and other styles

15

Babur, Hacer, Burak Surmen, and Hamdi Guray Kutbay. "Grime's CSR Strategies of Aquatic Macrophytes in Different Lagoon Lakes in Northern Turkey." Turkish Journal of Fisheries and Aquatic Sciences 21, no. 05 (2021): 211–24. http://dx.doi.org/10.4194/1303-2712-v21_05_01.

Full text

Abstract:

In this study, CSR strategies, biological diversity and water traits were evaluated in three lagoon lakes (Liman, Cernek and Balık) which had different nutrient status in the Central Black Sea Region of Turkey. The most productive lake was Balık lake, while the lowest productive lake is Liman lake in the study area. Secondary strategies were found to be dominant in studied lakes. No species exhibit pure S-strategy in the present study. pH, electrical conductivity, P and NH4 concentrations were found to be significant. However, total of nitrite-N and nitrate-N concentrations were not significan

APA, Harvard, Vancouver, ISO, and other styles

16

Briggs, SV, JA Seddon, and SA Thornton. "Wildlife in dry lake and associated habitats in western New South Wales." Rangeland Journal 22, no. 2 (2000): 256. http://dx.doi.org/10.1071/rj0000256.

Full text

Abstract:

Intermittently and occasionally flooded lakes are common in arid and semi-arid Australia. The wetldry nature of these lakes means that they provide habitat for terrestrial fauna when dry and aquatic fauna when flooded. The fauna of dry lakes in western New South Wales is largely unknown. This study reports on species of small mammals and reptiles trapped in a dry lake in south-western New South Wales, and contrasts them with species trapped in surrounding woodland and shrubland habitats. Information on bird species in these habitats was also drawn on. Small mammals, reptiles and birds showed c

APA, Harvard, Vancouver, ISO, and other styles

17

Baker, Edward A., and David J. Borgeson. "Lake Sturgeon Abundance and Harvest in Black Lake, Michigan, 1975–1999." North American Journal of Fisheries Management 19, no. 4 (1999): 1080–88. http://dx.doi.org/10.1577/1548-8675(1999)019<1080:lsaahi>2.0.co;2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Thienpont, Joshua R., Brian K. Ginn, Brian F. Cumming, and John P. Smol. "An Assessment of Environmental Changes in Three Lakes from King's County (Nova Scotia, Canada) Using Diatom-Based Paleolimnological Techniques." Water Quality Research Journal 43, no. 2-3 (2008): 85–98. http://dx.doi.org/10.2166/wqrj.2008.012.

Full text

Abstract:

Abstract Paleolimnological approaches using sedimentary diatom assemblages were used to assess water quality changes over the last approximately 200 years in three lakes from King's County, Nova Scotia. In particular, the role of recent shoreline development in accelerating eutrophication in these systems was assessed. Sediment cores collected from each lake were analyzed for their diatom assemblages at approximately 5-year intervals, as determined by 210Pb dating. Analyses showed that each system has changed, but tracked different ecosystem changes. Tupper and George lakes recorded shifts, wh

APA, Harvard, Vancouver, ISO, and other styles

19

Smyk, Mark C., and James M. Franklin. "A synopsis of mineral deposits in the Archean and Proterozoic rocks of the Lake Nipigon Region, Thunder Bay District, Ontario." Canadian Journal of Earth Sciences 44, no. 8 (2007): 1041–53. http://dx.doi.org/10.1139/e07-013.

Full text

Abstract:

A variety of metallic and non-metallic mineral deposit types occur within Archean and Proterozoic rocks in the area encompassing the Lake Nipigon Region Geoscience Initiative. Archean deposit types include Algoma-type banded iron formation-hosted iron (e.g., Lake Nipigon iron range); volcanogenic massive sulphide copper–zinc (e.g., Onaman–Tashota belt); ultramafic intrusion-hosted chromium (e.g., Puddy–Chrome lakes); mafic to ultramafic intrusion-hosted copper–nickel – platinum group element (PGE) (e.g., Lac des Iles); and pegmatite-hosted deposits of rare metals (Li, Ta, Be), uranium, and mol

APA, Harvard, Vancouver, ISO, and other styles

20

Shtereva, G. P., B. S. Dzhurova, and T. S. Nikolova. "Contamination of sediments in Varna Lake and Varna Bay." Water Science and Technology 50, no. 5 (2004): 317–20. http://dx.doi.org/10.2166/wst.2004.0343.

Full text

Abstract:

Varna Bay is one of the hot spots along the Black Sea coastal zone. Its ecological state is strongly influenced by the connection with the Varna Lake. Along the lake coast are located many sources of pollution such as rivers, ports, chemical industry, WWTPs. The shipping is another pressure on the environment. The study was carried out in the western part of the Varna Lake and Varna Bay. The following parameters: heavy metals, polichlorinated biphenyls, chlororganic pesticides, phenols, petroleum hydrocarbons were analysed in sediments. The high content of the last one is indicative for an ext

APA, Harvard, Vancouver, ISO, and other styles

21

Carter, D. R., S. Carter, and J. L. Allen. "Submerged Macrophyte Control Using Plastic Blankets." Water Science and Technology 29, no. 4 (1994): 119–26. http://dx.doi.org/10.2166/wst.1994.0172.

Full text

Abstract:

Penrith Lakes Scheme is concerned with the rehabilitation of gravel pits to create a system of large recreational lakes. A potential submerged macrophyte problem has been identified in an existing man-made lake. The need to control the macrophytes is dependent on the proposed end use of the lakes and the potential area of invasion. A variety of control options were assessed. Plastic blankets were tested to determine their effectiveness in controlling macrophyte growth specifically in swimming and boat access areas. Comparisons of clear, black and black woven blankets were conducted. Experiment

APA, Harvard, Vancouver, ISO, and other styles

22

Spidle, Adrian P., J. Ellen Marsden, and Bernie May. "Identification of the Great Lakes Quagga Mussel as Dreissena bugensis from the Dnieper River, Ukraine, on the Basis of Allozyme Variation." Canadian Journal of Fisheries and Aquatic Sciences 51, no. 7 (1994): 1485–89. http://dx.doi.org/10.1139/f94-148.

Full text

Abstract:

The discovery of a second dreissenid species, the quagga mussel, in the Great Lakes in 1991 prompted a search for its identity. We have identified the North American quagga mussel as Dreissena bugensis Andrusov on the basis of allozyme data and morphological characters. Further, a phenotypically distinct form of the quagga mussel found in Lakes Erie and Ontario also matches the electrophoretic profiles of the typical Lake Ontario quagga and European D. bugensis. We confirm that the white "profunda" mussel found in the deep waters of Lake Erie is a phenotype of the quagga mussel, and we conclud

APA, Harvard, Vancouver, ISO, and other styles

23

Nealis, V. G., and J. Régnière. "Fecundity and recruitment of eggs during outbreaks of the spruce budworm." Canadian Entomologist 136, no. 4 (2004): 591–604. http://dx.doi.org/10.4039/n03-089.

Full text

Abstract:

AbstractField data from outbreaks of the spruce budworm, Choristoneura fumiferana (Clem.) (Lepidoptera: Tortricidae), in Ontario and Quebec show that current-year defoliation is the single greatest determinant of variation in fecundity. The species of tree that served as the foodplant and infections by the microsporidian Nosema fumiferanae (Thomson) (Microsporida) had little effect on mean lifetime fecundity in field populations. During a prolonged outbreak at one location (Black Sturgeon Lake, Ontario), annual lifetime fecundity was inversely related to observed defoliation in the same year,

APA, Harvard, Vancouver, ISO, and other styles

24

Young, D. D., and J. J. Beecham. "Black Bear Habitat Use at Priest Lake, Idaho." Bears: Their Biology and Management 6 (1986): 73. http://dx.doi.org/10.2307/3872808.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

Benson, Larry V., Joseph P. Smoot, Michaele Kashgarian, Andrei Sarna-Wojcicki, and James W. Burdett. "Radiocarbon Ages and Environments of Deposition of the Wono and Trego Hot Springs Tephra Layers in the Pyramid Lake Subbasin, Nevada." Quaternary Research 47, no. 3 (1997): 251–60. http://dx.doi.org/10.1006/qres.1997.1897.

Full text

Abstract:

Uncalibrated radiocarbon data from core PLC92B taken from Wizards Cove in the Pyramid Lake subbasin indicate that the Trego Hot Springs and Wono tephra layers were deposited 23,200 ± 300 and 27,300 ± 30014C yr B.P. (uncorrected for reservoir effect). Sedimentological data from sites in the Pyramid Lake and Smoke Creek–Black Rock Desert subbasins indicate that the Trego Hot Springs tephra layer was deposited during a relatively dry period when Pyramid Lake was at or below its spill point (1177 m) to the Winnemucca Lake subbasin. The Wono tephra layer was deposited when lake depth was controlled

APA, Harvard, Vancouver, ISO, and other styles

26

Ramdhani, Muhammad Tri, Susi Novaryatiin, Gunawan Gunawan, Nanang Hanafi, S. Ayu, and Junaidi Junaidi. "Optimalisasi Palangka Raya menuju Kota Wisata yang Diminati Wisatawan Nusantara/Mancanegara pada Kecamatan Sebangau." Restorica: Jurnal Ilmiah Ilmu Administrasi Negara dan Ilmu Komunikasi 4, no. 2 (2018): 14–19. http://dx.doi.org/10.33084/restorica.v4i2.443.

Full text

Abstract:

The efforts to develop tourism require involvement and readiness by all stakeholders to integrate the tourism management framework. Stakeholders in tourism development consist of three groups, namely the community, the private sector, and the government. Local people have tourism resources, so they need to be encouraged to use them optimally. However, the community does not yet have sufficient capacity to develop and manage these resources to be absorbed by the market, besides the market demand for quality and diversification of tourism products is very high. It is this demand that must be res

APA, Harvard, Vancouver, ISO, and other styles

27

Lakeman, Thomas R., John J. Clague, Brian Menounos, Gerald D. Osborn, Britta J. L. Jensen, and Duane G. Froese. "Holocene tephras in lake cores from northern British Columbia, Canada." Canadian Journal of Earth Sciences 45, no. 8 (2008): 935–47. http://dx.doi.org/10.1139/e08-035.

Full text

Abstract:

Sediment cores recovered from alpine and subalpine lakes up to 250 km apart in northern British Columbia contain five previously unrecognized tephras. Two black phonolitic tephras, each 5–10 mm thick, occur within 2–4 cm of each other in basal sediments from seven lakes in the Finlay River – Dease Lake area. The upper and lower Finlay tephras are slightly older than 10 220 – 10 560 cal year B.P. and likely originate from two closely spaced eruptions of one or two large volcanoes in the northern Cordilleran volcanic province. The Finlay tephras occur at the transition between deglacial sediment

APA, Harvard, Vancouver, ISO, and other styles

28

Benson, L. V., and R. S. Thompson. "Lake-Level Variation in the Lahontan Basin for the Past 50,000 Years." Quaternary Research 28, no. 1 (1987): 69–85. http://dx.doi.org/10.1016/0033-5894(87)90034-2.

Full text

Abstract:

AbstractSelected radiocarbon data on surficial materials from the Lahontan basin, Nevada and California, provide a chronology of lake-level variation for the past 50,000 yr. A moderate-sized lake connected three western Lahontan subbasins (the Smoke Creek-Black Rock Desert subbasin, the Pyramid Lake subbasin, and the Winnemucca Dry Lake subbasin) from about 45,000 to 16,500 yr B.P. Between 50,000 and 45,000 yr B.P., Walker Lake rose to its sill level in Adrian Valley and spilled to the Carson Desert subbasin. By 20,000 yr B.P., lake level in the western Lahontan subbasins had risen to about 12

APA, Harvard, Vancouver, ISO, and other styles

29

Smith, Kregg M., and Donna K. King. "Movement and Habitat Use of Yearling and Juvenile Lake Sturgeon in Black Lake, Michigan." Transactions of the American Fisheries Society 134, no. 5 (2005): 1159–72. http://dx.doi.org/10.1577/t04-149.1.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

DUMONT, HENRI J., ANDY VIERSTRAETE, and NURAY AKBULUT. "Cornigerius lacustris of Lake Hazar, Turkey, a synonym of Cornigerius maeoticus (Pengo) of the Ponto-Caspian (Cladocera: Onychopoda)." Zootaxa 4619, no. 1 (2019): 177–83. http://dx.doi.org/10.11646/zootaxa.4619.1.9.

Full text

Abstract:

Cornigerius species are endemic to the Ponto-Caspian, with the exception of Cornigerius lacustris, which is endemic to freshwater Lake Hazar in the Euphrates basin. However, the barcoding fragment of the cytochrome c subunit I (COI) of animals from the type locality shows less than 1 % divergence with Black Sea and less than 2% with Caspian Lake C. maeoticus, the oldest and most widespread species of the genus. Black Sea and Caspian Lake animals show 1.5 % divergence. We therefore place the origin of the Hazar population in the Black Sea. Combined with a variable morphology, we also conclude t

APA, Harvard, Vancouver, ISO, and other styles

31

Schütze, Martin, Gegeensuvd Tserendorj, Marta Pérez-Rodríguez, Manfred Rösch, and Harald Biester. "Prediction of Holocene Mercury Accumulation Trends by Combining Palynological and Geochemical Records of Lake Sediments (Black Forest, Germany)." Geosciences 8, no. 10 (2018): 358. http://dx.doi.org/10.3390/geosciences8100358.

Full text

Abstract:

Forest vegetation plays a key role in the cycling of mercury (Hg) and organic matter (OM) in terrestrial ecosystems. Litterfall has been indicated as the major transport vector of atmospheric Hg to forest soils, which is eventually transported and stored in the sediments of forest lakes. Hence, it is important to understand how changes in forest vegetation affect Hg in soil and its biogeochemical cycling in lake systems. We investigated the pollen records and the geochemical compositions of sediments from two lakes (Schurmsee and Glaswaldsee) in the Black Forest (Germany) to evaluate whether l

APA, Harvard, Vancouver, ISO, and other styles

32

Bendell, Barry E., and Donald K. McNicol. "The diet of insectivorous ducklings and the acidification of small Ontario lakes." Canadian Journal of Zoology 73, no. 11 (1995): 2044–51. http://dx.doi.org/10.1139/z95-240.

Full text

Abstract:

We examined the diet of insectivorous ducklings of four species of waterfowl, Common Goldeneye (Bucephala clangula), Ring-necked Duck (Aythya collaris), Hooded Merganser (Lophodytes cucullatus), and American Black Duck (Anas rubripes), collected from small lakes covering a range of acidity in northeastern Ontario. The numbers of Odonata larvae, aquatic Hemiptera, aquatic Coleoptera, and Trichoptera larvae eaten by the ducklings were estimated from combined esophageal and gizzard contents and analysed with respect to differences in lake acidity and fish presence. Ducklings of all species, espec

APA, Harvard, Vancouver, ISO, and other styles

33

Collins, Anthony G., and Thomas C. Young. "Assessment of Phosphorus Sources to Black Lake, New York." Journal of Environmental Engineering 114, no. 2 (1988): 337–51. http://dx.doi.org/10.1061/(asce)0733-9372(1988)114:2(337).

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Kalchev, R. K., and I. S. Botev. "Long-term eutrophication development in five coastal lakes of the Bulgarian black sea region." Water Science and Technology 39, no. 8 (1999): 1–7. http://dx.doi.org/10.2166/wst.1999.0370.

Full text

Abstract:

Referring to data for orthophosphate phosphorus and soluble inorganic nitrogen consisting of NO31− and NH41+ ions, an attempt was made to estimate the trophic status and to follow up trophic changes over 15 to 30 year periods. The PO43−-P concentrations alone put most lakes permanently in the highest trophic state (hypereutrophic level) according to the Likens (1975) scale, set for total phosphorus and nitrogen concentrations. Only the Ezerets and Shabla lakes presented an exception in the 1963-1967 period. The nitrogen concentration covered the range from higher than oligomesotrophic to hyper

APA, Harvard, Vancouver, ISO, and other styles

35

Hanson, Alan R., and C. Davison Ankney. "Morphometric similarity of Mallards and American Black Ducks." Canadian Journal of Zoology 72, no. 12 (1994): 2248–51. http://dx.doi.org/10.1139/z94-300.

Full text

Abstract:

Morphometric data were collected from 347 American Black Ducks (Anas rubripes), and 1466 Mallards (Anas platyrhynchos) taken by hunters in the Lake St. Clair and Lake Erie regions of southwestern Ontario during autumn 1986 and from 511 American Black Ducks shot throughout the province of New Brunswick during the 1988 and 1989 hunting seasons. Discriminant function analyses based on eight external morphometric variables (wing chord, tarsus length, middle toe length, hind toe length, culmen, head length, naris width, and bill width) did not accurately distinguish Black Ducks from Mallards. Discr

APA, Harvard, Vancouver, ISO, and other styles

36

Steinman, Alan D., Mary E. Ogdahl, and Carl R. Ruetz. "An environmental assessment of a small shallow lake (Little Black Lake, MI) threatened by urbanization." Environmental Monitoring and Assessment 173, no. 1-4 (2010): 193–209. http://dx.doi.org/10.1007/s10661-010-1381-z.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Marcisz, Walter J., Jeffrey M. Levengood, Allison M. Klement, and Margaret A. Kurcz. "Black-crowned Night-Heronsof the Lake Calumet Region,Chicago, Illinois." Illinois Natural History Survey Bulletin 37, no. 1-6 (2005): 109–17. http://dx.doi.org/10.21900/j.inhs.v37.114.

Full text

Abstract:

The number of active black-crowned night-heron (Nycticorax nycticorax) nesting colonies in Illinois has declined significantly over the past century. Habitat loss/degradation and other factors such as exposure to environmental contaminants and competition for nest sites at established colonies may have contributed to this decline. In this study, we examined recent trends in population levels of Black-crowned Night-Herons nesting at wetlands associated with Lake Calumet in southeastern Chicago, Illinois. The number of black-crowned night herons nesting annually at these wetlands has fluctuated

APA, Harvard, Vancouver, ISO, and other styles

38

Matveev, A. N., V. P. Samusenok, A. L. Yuriev, A. I. Vokin, I. V. Samusenok, and S. S. Alekseyev. "Biology of Fishes of Lake Frolikha (Northern Baikal Region, East Siberia)." Bulletin of Irkutsk State University. Series Biology. Ecology 32 (2020): 50–82. http://dx.doi.org/10.26516/2073-3372.2020.32.50.

Full text

Abstract:

The fish fauna of Lake Frolikha comprises 12 species confirmed by our recent studies: roach Rutilus rutilus (L.), minnow Phoxinus phonixus (L.), stone loach Barbatula toni (Dyb.), spine loach Cobitis melanoleuca Nichols, pike Esox lucius L. lenok Brachymystax lenok (Pallas), Arctic charr Salvelinus alpinus (L.), Baikal black grayling Thymallus baicalensis (Dyb.), burbot Lota lota (L.), sand sculpin Leocottus kesslerii (Dyb.), stone sculpin Paracottus knerii (Dyb.) and perch Perca fluviatilis L. Biological peculiarities of these fishes are determined by unique geographical position and limnic c

APA, Harvard, Vancouver, ISO, and other styles

39

Kingsford, RT, J. Flanjack, and S. Black. "Lead Shot and Ducks on Lake Cowal." Wildlife Research 16, no. 2 (1989): 167. http://dx.doi.org/10.1071/wr9890167.

Full text

Abstract:

We determined the amount of lead shot left after shooting, in the sediment and also the occurrence of lead shot in the gizzards of waterfowl shot at Lake Cowal. We also investigated levels of lead in livers. Livers and gizzards of 342 ducks, Pacific black duck (96), grey teal (122), maned duck (102), pink-eared duck (15) and Australasian shoveler (7), were collected during the 1987 duck shooting season. Few birds had ingested shot (1.5%). Black ducks had more grit, the size of shot, in their gizzards than did grey teal or maned duck. Total grit contents in the gizzards were of a similar weight

APA, Harvard, Vancouver, ISO, and other styles

40

Herbst, Seth J., Bryan S. Stevens, Daniel B. Hayes, and Patrick A. Hanchin. "Estimating walleye (Sander vitreus) movement and fishing mortality using state-space models: implications for management of spatially structured populations." Canadian Journal of Fisheries and Aquatic Sciences 73, no. 3 (2016): 330–48. http://dx.doi.org/10.1139/cjfas-2015-0021.

Full text

Abstract:

Fish often exhibit complex movement patterns, and quantification of these patterns is critical for understanding many facets of fisheries ecology and management. In this study, we estimated movement and fishing mortality rates for exploited walleye (Sander vitreus) populations in a lake-chain system in northern Michigan. We developed a state-space model to estimate lake-specific movement and fishery parameters and fit models to observed angler tag return data using Bayesian estimation and inference procedures. Informative prior distributions for lake-specific spawning-site fidelity, fishing mo

APA, Harvard, Vancouver, ISO, and other styles

41

Welch, Harold E., and John A. Legault. "Precipitation Chemistry and Chemical Limnology of Fertilized and Natural Lakes at Saqvaqjuac, N.W.T." Canadian Journal of Fisheries and Aquatic Sciences 43, no. 6 (1986): 1104–34. http://dx.doi.org/10.1139/f86-140.

Full text

Abstract:

Precipitation at Saqvaqjuac (northwest coast of Hudson Bay, 60°39′N) had high concentrations of sea salts, was moderately acidic, and had less SO4 and total N than lower latitude precipitation, although SO4 sources were distant. Watershed retention was high for H+, but negative for other elements as a consequence of isostatic rebound. Annual element runoff was a function of the timing of melt runoff and summer rain events because of permafrost. Lake retention of Si was higher than P because of the different times of loading, late summer versus spring. Conservative element mass did not change o

APA, Harvard, Vancouver, ISO, and other styles

42

Murkalov, O. B., and O. O. Stoyan. "LONG-TERM CHANGES IN THE AREA OF LAKES ON THE BAR OF THE TYLIGULSKYI LIMAN (BLACK SEA)." Odesa National University Herald. Geography and Geology 26, no. 1(38) (2021): 55–66. http://dx.doi.org/10.18524/2303-9914.2021.1(38).234648.

Full text

Abstract:

Problems Statement and Purpose. The estuarine area of Tyligulskyi Liman is located within the limits of north-western limans coastal area between the Odesa bay and Berezans’kyi Liman. Tyligulskyi Liman is separated from the sea by a wide sandy-shell bay-bar, in which an artificial liman-sea connecting channel is laid. The bay-bar of the Tyligulskyi liman is one of the most powerful sea-land contact zones in the region. The Tyligulskyi Liman and its bay-bar are officially recognized as Ramsar wetlands. The need to study and protect the bay-bar is associated with both its international status of

APA, Harvard, Vancouver, ISO, and other styles

43

Kristofferson, A. H., and J. W. Clayton. "Subpopulation Status of Lake Whitefish (Coregonus clupeaformis) in Lake Winnipeg." Canadian Journal of Fisheries and Aquatic Sciences 47, no. 8 (1990): 1484–94. http://dx.doi.org/10.1139/f90-166.

Full text

Abstract:

Spawning lake whitefish in Lake Winnipeg from Dauphin River–Lake St. Martin, Traverse Bay, Berens River–Poplar River–Big Black River and Grand Rapids and in Little Playgreen Lake are accorded subpopulation status based on morphometric measurements, meristic counts, and differences in frequencies of alleles at the muscle glycerol-3-phosphate dehydrogenase (g-3-pdh-b) locus. The frequency of the g-3-pdh-b-3 allele in samples from Dauphin River–Lake St. Martin was 0.77 compared with 0.46 for whitefish from the remainder of Lake Winnipeg and Little Playgreen Lake. Two loci for isocitrate dehydroge

APA, Harvard, Vancouver, ISO, and other styles

44

Reid, Scott M. "Relationship between Habitat Quality and Occurrence of the Threatened Black Redhorse (Moxostoma duquesnei) in Lake Erie Tributaries." Water Quality Research Journal 41, no. 4 (2006): 341–50. http://dx.doi.org/10.2166/wqrj.2006.038.

Full text

Abstract:

Abstract Recovery planning for the nationally threatened black redhorse (Moxostoma duquesnei) is limited by a lack of knowledge regarding species ecology, population size and factors that affect distribution and abundance. Generalized additive models (GAM) were used to evaluate the influence of habitat quality on the distribution of the black redhorse in the Grand River (Ontario) and 11 western Lake Erie tributaries (Ohio). Black redhorse were captured at 26% of Grand River sites and 6% of western Lake Erie tributary sites. In western Lake Erie tributaries, black redhorse were more likely to b

APA, Harvard, Vancouver, ISO, and other styles

45

Harisha, M. N., and B. B. Hosetti. "Status and conservation issues of wetland birds in Komaranahalli Lake, Davanagere District, Karnataka, India." Journal of Threatened Taxa 10, no. 2 (2018): 11290. http://dx.doi.org/10.11609/jott.2809.10.2.11290-11294.

Full text

Abstract:

This study was carried out to assess the status and conservation issues of migratory water birds in Komaranahalli Kere, a lake in Malebennur, Harihar Taluk, Davanagere District from November 2012 to October 2013. The dominant family was Ardeidae represented by 10 species, followed by the Scolopacidae with seven species. The families with lowest representations of one species were Podicipididae, Anhingidae, Rostratulidae and Recurvirostridae. The study revealed that the lake harbors many resident and a few migratory bird species. Among the species recorded five species namely the Black-headed I

APA, Harvard, Vancouver, ISO, and other styles

46

Harisha, M. N., and B. B. Hosetti. "Status and conservation issues of wetland birds in Komaranahalli Lake, Davanagere District, Karnataka, India." Journal of Threatened Taxa 10, no. 2 (2018): 11295. http://dx.doi.org/10.11609/jott.2809.10.2.11295-11302.

Full text

Abstract:

This study was carried out to assess the status and conservation issues of migratory water birds in Komaranahalli Kere, a lake in Malebennur, Harihar Taluk, Davanagere District from November 2012 to October 2013. The dominant family was Ardeidae represented by 10 species, followed by the Scolopacidae with seven species. The families with lowest representations of one species were Podicipididae, Anhingidae, Rostratulidae and Recurvirostridae. The study revealed that the lake harbors many resident and a few migratory bird species. Among the species recorded five species namely the Black-headed I

APA, Harvard, Vancouver, ISO, and other styles

47

Hall, Kenneth J., Thomas P. D. Murphy, Michael Mawhinney, and Kenneth I. Ashley. "Iron Treatment For Eutrophication Control In Black Lake, British Columbia." Lake and Reservoir Management 9, no. 1 (1994): 114–17. http://dx.doi.org/10.1080/07438149409354739.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Mangun, Kimberley. "Black Cyclist Framed Differently at 1910 Salt Lake City Competition." Newspaper Research Journal 34, no. 3 (2013): 36–59. http://dx.doi.org/10.1177/073953291303400304.

Full text

APA, Harvard, Vancouver, ISO, and other styles

49

Keenan, T. J., and L. C. Cwynar. "Late Quaternary history of black spruce and grasslands in southwest Yukon Territory." Canadian Journal of Botany 70, no. 7 (1992): 1336–45. http://dx.doi.org/10.1139/b92-168.

Full text

Abstract:

Pollen records from Long Last Lake and Two Horsemen Pond, near the centre of the arid region of southwest Yukon Territory, do not support the hypotheses that (i) black spruce was a dominant species in the region and (ii) the southwest Yukon supported widespread grasslands during most of the past 10 000 years. Black spruce became established between 8500 and 8000 BP, shortly after the arrival of white spruce, but its low pollen percentages (< 5%) indicate that it was a minor component of forests. Between 6000 and 5000 BP, white spruce populations decreased as black spruce and green alder inc

APA, Harvard, Vancouver, ISO, and other styles

50

Schultze, Nadine, Hubert Laufer, Carolin Kindler, and Uwe Fritz. "Distribution and hybridisation of barred and common grass snakes (Natrix helvetica, N. natrix) in Baden-Württemberg, South-western Germany." Herpetozoa 32 (October 4, 2019): 229–36. http://dx.doi.org/10.3897/herpetozoa.32.e38897.

Full text

Abstract:

The distribution and hybridisation zone of the two grass snake species occurring in the German state of Baden-Württemberg are described, based on genetic data from maternally inherited mitochondrial DNA (mtDNA, up to 1983 bp) and biparentally inherited microsatellite DNA (13 loci). In agreement with previously published morphological evidence, the barred grass snake (Natrix helvetica) occurs in the Upper Rhine Valley and the Black Forest, while the common grass snake (N. natrix, ‘yellow lineage’) is distributed across the remaining, more eastern parts of Baden-Württemberg. Cline analyses acros

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!