منابع مشابه
Horizontal mixing in lakes
. Abstract. Horizontal mixing in the upper hypolimnion of lues far from the boundaries was studied in lake basins with surface areas between 5 and 220 km2 by observing the growth of the concentration distribution of the fluorescent dye sodium fluorescein (uranin). In each of the eight experiments, between 0.2 and 2 kg of uranin was instantaneously released into the lake in the appropriate depth...
متن کاملMaximum Dive Depths of Eight New Zealand Procellariiform including Pterodroma Species
Lightweight capillary tube depth gauges were attached to breeding at New Zealand colonies during the period 1998-2008. This paper presents the first information on the diving ability of Pterodroma Grey-faced Petrels, Pterodroma macroptera gouldi, recorded maximum dives down to 23 m. Males (6.3 ± 6.3 m SD) dived deeper on average than females (3.6 2.5 m) during the incubation period but not sign...
متن کاملDUNEDIN NEW ZEALAND Predictive Modelling of Plankton Dynamics in Freshwater Lakes using Genetic Programming
Building predictive time series models for freshwater systems is important both for understanding the dynamics of these natural systems and in the development of decision support and management software. This work describes the application of a machine learning technique, namely genetic programming (GP), to the prediction of chlorophyll-a. The system endeavoured to evolve several mathematical t...
متن کاملRecent occurrence of Cylindrospermopsis raciborskii in Waikato lakes of New Zealand
Cylindrospermopsis raciborskii is a toxin-producing species of cyanobacteria that in autumn 2003 was recorded for the first time in three shallow (max. depth £5 m) Waikato lakes and a hydro-electric dam on the Waikato River, New Zealand. It formed water blooms at densities >100 000 cells/ml in Lakes Waahi and Whangape. Net rates of population growth >0.2 day–1 were recorded for C. raciborskii i...
متن کاملCoote New Zealand Futures Trust New Zealand
On Media A workshop report from US Institute for Peace examined Arab media, August, 05 (http://usip.org/virtual diplomacy/publications/reports/18.html), with special focus on attitudes to US and to the West. The relevant Arab governments play a double role since mostly, they control the media, where they appease the ideological positions of their own threatening insurgencies while focusing publ...
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ژورنال
عنوان ژورنال: New Zealand Journal of Marine and Freshwater Research
سال: 1988
ISSN: 0028-8330,1175-8805
DOI: 10.1080/00288330.1988.9516322