geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Chemical and algal relationships in a salinity series of Ethiopian inland waters


, : Chemical and algal relationships in a salinity series of Ethiopian inland waters. Hydrobiologia, 158: 29-67

Most Ethiopian lakes are parts of closed drainage systems and collectively form an extensive salinity series, here treated comparatively for geographical, chemical and algal characteristics. Chemical data are presented for 28 lakes and numerous inflows, including original analyses for 15 lakes, in which total ionic concentration and electrical conductivity vary over 4 orders of magnitude. The principal determinant of a lake's position in the series is the open or closed nature of its individual drainage. At present there are three major closed systems (Awash R. — Afar drainage, northern rift lakes, southern rift lakes), numerous crater lakes with seepage -in and -out, and two cryptodepressions with marine inputs. Salinity is primarily determined by evaporative concentration, enhanced in lakes associated with past marine influence or recent volcanic activity by readily soluble materials in the catchment, and by some thermal-reflux pathways. However, anomalously dilute closed lakes exist, indicative of other processes of solute loss (e.g. past basin overflow, ‘reverse weathering’, seepage-out).

US$19.90

DOI: 10.1007/bf00026266


Other references

Florez, J.C.; Hirschhorn, J.; Altshuler, D., 2003: The inherited basis of diabetes mellitus: implications for the genetic analysis of complex traits. Diabetes encompasses a heterogeneous group of diseases, each with a substantial genetic component. We review the division of diabetes into different subtypes based on clinical phenotype, the fruitful pursuit of genes underlying monogenic forms of...

Middelburg, C., 1982: Vegetative reproduction in sugar beet. Meristem culture of sugar beet and the application of this technique are described.

Voskuhl, R.R.; Martin, R.; McFarland, H.F., 1993: A functional basis for the association of HLA class II genes and susceptibility to multiple sclerosis: cellular immune responses to myelin basic protein in a multiplex family. This study has examined the cellular response to myelin basic protein (MBP) in a multiplex family with multiple sclerosis (MS). A total of 81 MBP-specific T cell lines (TCLs) were derived from three affected siblings and four healthy siblings. No...

Vatan Andre, 1939: Observations sur une note de MM. R. D. Crommelin et A. Cailleux. Notes the similarity in polish of fine-grained sediments showing wind abrasion and coarser ones water-worn; comment by Andre Cailleux.

Hodges, A.; Mahoney, S.C., 1970: Expectations for the comprehensive mental health center: the community. Community Mental Health Journal 6(1): 75-77

Larin, Z.; Monaco, A.P.; Lehrach, H., 1991: Yeast artificial chromosome libraries containing large inserts from mouse and human DNA. Yeast artificial chromosome (YAC) libraries have been difficult to construct with average insert sizes greater than 400 kilobase pairs when DNA is size-fractionated in low-melting-point agarose. By using yeast chromosome in mock cloning experiment...

Phan, B.D.; Entezari, M.; Lockshin, R.A.; Bartelt, D.C.; Mantell, L.L., 2011: Hydrogen peroxide enhances phagocytosis of Pseudomonas aeruginosa in hyperoxia. Mechanical ventilation with hyperoxia is a necessary treatment for patients with respiratory distress. However, patients on mechanical ventilation have increased susceptibility to infection. Studies including ours have shown that reactive oxygen s...

Kulund, D.N.; Töttössy, M., 1983: Warm-up, strength, and power. Orthopedic Clinics of North America 14(2): 427-448

Tanida, T.; Tanemura, M.; Kobayashi, S.; Wada, H.; Marubashi, S.; Eguchi, H.; Takeda, Y.; Umeshita, H.; Mori, M.; Doki, Y.; Nagano, H., 2011: A case report--intrahepatic arterial infusion with CDDP and S-1 administration can elicit long-term survival for the patient with recurrenced intrahepatic cholangiocarcinoma after resection. To cure intrahepatic cholangiocarcinoma (ICC), only a surgical resection is the potential treatment at present. However, recurrence tumors in residual liver and/or distant organs even after curative surgery are commonly experienced in clinical cou...

Malafronte, R.dos.Santos.; Calvo, E.; James, A.A.; Marinotti, O., 2002: The major salivary gland antigens of Culex quinquefasciatus are D7-related proteins. The sera of persons with strong allergic responses to the bites of the mosquito, Culex quinquefasciatus, contained IgE antibodies reactive with two major salivary gland proteins with molecular weights of 35 and 28 kDa. These antigens were purified...