eco.mont Journal on Protected Mountain Areas Research and Management
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Verlag der Österreichischen Akademie der Wissenschaften Austrian Academy of Sciences Press
A-1011 Wien, Dr. Ignaz Seipel-Platz 2
Tel. +43-1-515 81/DW 3420, Fax +43-1-515 81/DW 3400 https://verlag.oeaw.ac.at, e-mail: verlag@oeaw.ac.at |
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DATUM, UNTERSCHRIFT / DATE, SIGNATURE
BANK AUSTRIA CREDITANSTALT, WIEN (IBAN AT04 1100 0006 2280 0100, BIC BKAUATWW), DEUTSCHE BANK MÜNCHEN (IBAN DE16 7007 0024 0238 8270 00, BIC DEUTDEDBMUC)
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eco.mont Journal on Protected Mountain Areas Research and Management
ISSN 2073-106X
Print Edition ISSN 2073-1558 Online Edition ISBN 978-3-7001-6672-6 Online Edition Journal on Protected Mountain Areas Research and Management 1/1
2009, online edition A print edition is available from innsbruck university press Indexed by: Science Citation Index
Axel Borsdorf
is professor of geography at the University of Innsbruck and director of the Institute of Mountain Research: Man and Environment of the Austrian Academy of Sciences ÖAW Günter Köck is director of the national research programmes of the Austrian Academy of Sciences ÖAW
Robert Schabetsberger,
Eugen Rott,
Gertrude Friedl,
Gabriele Drozdowski,
Estelle Razafindranaivo,
Christopher Holmes
S. 35 - 43 doi:10.1553/eco.mont1s35 Verlag der Österreichischen Akademie der Wissenschaften
Abstract: The newly established Makira Protected Area and its environs in Northeast Madagascar host roughly 50% of the entire Malagasy floral biodiversity, but very little was known about the two freshwater lakes found within the park. Lake Amparihibe was explored for the first time in November 2007. According to preliminary 40Ar/39Ar dating, the volcanic crater formed as far back as 25.3 million years ago, but no information is available about when the crater started to fill with water. The protected crater lake has a maximum depth of 28 m and was anoxic beyond a depth of 15 m. During the single sampling occasion, steep gradients in temperature, oxygen, conductivity and pH revealed a stable stratification. Several phyto- and zooplankton taxa showed distinct depth-specific abundance maxima along the steep physico-chemical gradients. The majority of plankton organisms have a cosmopolitan (tropical and temperate) distribution, however more taxonomic research is necessary before definitive conclusions can be drawn. Exposure of a multi-mesh gill net together with visual inspection by snorkeling yielded no presence of fish. Despite the full protection status of the park, illegal introduction of alien fish species seems a realistic threat to this pristine Malagasy lake. Published Online: 2009/05/18 13:28:37 Object Identifier: 0xc1aa5576 0x00220566 Rights:https://creativecommons.org/licenses/by-nc-nd/4.0/ The new journal "eco.mont" - Journal of protected mountain areas research and management - was published for the first time in June 2009. The journal was founded as a joint initiative of the Alpine Network of Protected Areas (ALPARC), the International Scientific Committee on Research in the Alps (ISCAR), the Austrian Academy of Sciences (ÖAW) and the University of Innsbruck. The journal aims to highlight research on and management issues in protected areas in the Alps without excluding other protected mountain areas in Europe or overseas. Its target audiences are scientists from all related disciplines, managers of protected areas and interested individuals including practitioners, visitors, teachers, etc. The journal presents peer-reviewed articles in English by authors who research protected mountain areas and management issues within these areas. It is published twice a year as a collaboration of the Austrian Academy of Sciences Press - responsible for the e-version - and Innsbruck University Press - responsible for the print version.
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Verlag der Österreichischen Akademie der Wissenschaften Austrian Academy of Sciences Press
A-1011 Wien, Dr. Ignaz Seipel-Platz 2
Tel. +43-1-515 81/DW 3420, Fax +43-1-515 81/DW 3400 https://verlag.oeaw.ac.at, e-mail: verlag@oeaw.ac.at |