caa a22 4500 44589461X CHVBK 20180317145627.0 cr unu---uuuuu 170323e20110401xx s 000 0 eng 10.1007/s10750-010-0591-2 doi (NATIONALLICENCE)springer-10.1007/s10750-010-0591-2 Spatio-temporal variation of the zooplankton community in a tropical caldera lake with intensive aquaculture (Lake Taal, Philippines) [Elektronische Daten] [Rey Papa, Macrina Zafaralla, Reiner Eckmann] Zooplankton were collected from Lake Taal between January and December 2008 in order to test for differences in species composition and abundance between a lake basin with intensive fish cage (FC) aquaculture and an open water area without FCs. Most species showed similar patterns of occurrence in both basins while having differences in abundance. Several rotifer species were more abundant in FC sites most of the year, while for microcrustaceans higher abundances in FC sites only happened during the first 2months. Their distribution is attributed to the presence of higher nutrient levels in FC sites as well as wind-induced basin-wide water movements during the different monsoon seasons which disperse plankton and nutrients from FC sites to other parts of the lake. Zooplanktonic indicators, such as the Brachionus-Trichocerca quotient (Q B/T) and the ratio of calanoids to cladocerans and cyclopoids, clearly demonstrate the eutrophic state of the lake. A comparison with previous studies suggests that the lake was already eutrophic prior to the introduction of aquaculture in the 1970s. The trophic conditions in Lake Taal may be attributed to the lakes' tropical and volcanic nature, with productivity further enhanced by increased nutrient input from aquaculture. Springer Science+Business Media B.V., 2011 Atelomixis nationallicence Sardinella tawilis nationallicence Monsoon seasons nationallicence Brachionus - Trichocerca quotient nationallicence Papa Rey Department of Biological Sciences, Graduate School and Research Center for the Natural Sciences, University of Santo Tomas, Manila, Philippines aut Zafaralla Macrina Institute of Biological Sciences, University of the Philippines Los Baños College, Laguna, Philippines aut Eckmann Reiner Limnological Institute, University of Konstanz, Constance, Germany aut Hydrobiologia Springer Netherlands 664/1(2011-04-01), 119-133 0018-8158 664:1<119 2011 664 10750 https://doi.org/10.1007/s10750-010-0591-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-010-0591-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Papa Rey Department of Biological Sciences, Graduate School and Research Center for the Natural Sciences, University of Santo Tomas, Manila, Philippines aut NATIONALLICENCE 700 1- Zafaralla Macrina Institute of Biological Sciences, University of the Philippines Los Baños College, Laguna, Philippines aut NATIONALLICENCE 700 1- Eckmann Reiner Limnological Institute, University of Konstanz, Constance, Germany aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 664/1(2011-04-01), 119-133 0018-8158 664:1<119 2011 664 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer