A checklist of the known species of North American freshwater
ostracoda. Am.
On the
Ostracoda from the cenotes of Yucatan and vicinity.
IVI CIPO LPAT LVEN Nematoda + + + + Oligochaeta + + + + Narapa bonettoi + + + - Hirudinea - + - + Thiaridae - + - + Corbiculidae + + - + Mytilidae - + - - Hydracarina + + + + Cladocera + + + +
Ostracoda + + + + Calanoida + + + + Cyclopoida + + + + Entomobryidae + + + + Sminthuridae - - - + Polymitarcyidae + + + + Leptohyphidae + + - + Baetidae - + - + Gomphidae + + - + Coenagronidae - + - - Hydropsychidae + + - - Polycentropodidae + + - - Hydroptilidae - + - - Dytiscidae + - - + Hydrophilidae + - - - Elmidae + + - + Ceratopogonidae + + + + Chaoboridae - - + - Chironomidae + + + + Culicidae + - - - Tabela 1.
Notes on the ecology of Metacypris cordata (
Ostracoda, Timiriaseviinae).
Taxa Febrero No insectos S1 S2 S3 Turbellaria - 3 2 Nemathelmintes - - - Oligochaeta 56 13 14 Hirudinea - - - Gastropoda - - - Hydracarina - 2 - Amphipoda - - -
Ostracoda 105 - - Copepoda 205 - - Insectos Collembola Hypogasturidae - - 5 Poduridae - - 1 Plecoptera Gripopterygidae Claudioperla tigrina 4 4 23 Ephemeroptera Baetidae Andesiops peruvianus 929 27 134 Leptophlebiidae Meridialaris tintinnabula 10 30 72 Hemiptera Notonectidae - - 1 Coleoptera Elmidae 6 - - Dytiscidae - - - Trichoptera Limnephilidae Antartoecia nordenskioeldi 10 5 - Hydrobiosidae Cailloma rubemarini - 62 - Hydroptilidae Hydroptila sp.?
californicus), bryozoan remains, Chironomidae, and
Ostracoda was observed as total length of the fishes increased (Figures 2a, b).
Miscellaneous aquatic invertebrates (
Ostracoda, Trichoptera and Odonata), aquatic and terrestrial Coleoptera, and Corixidae occurred in the diet primarily during January through June and collectively represented 0 to 54% (mean = 9%) of the diet across all samples.
Genotypic diversity of asexual
Ostracoda from a low Arctic site.
Ecological requirements of
Ostracoda (Crustacea) in a heavily polluted shallow lake, Lake Yenicaga (Bolu, Turkey).
* - - Pleuroxus aduncus (Jurine, 1820) * 0.333 - Pleuroxus caca Baird, 1843 * 0.333 0.333 Pleuroxus laevis Sars, 1861 * - - Pleuroxus trigonellus (Muller, 1785) * - - Pleuroxus truncatus (Muller, 1785) * - - Acroperus harpae (Baird, 1834) * - - Camptocercus similis Sars, 1901 * - - Chydorus globosus (Baird, 1843) * - - Daphnia peruviana Harding, 1955 * - - Ceriodaphnia dubia Richard, 1894 * 0.666 0.333 Simocephalus vetulus (Muller, 1776) * 0.333 -
Ostracoda sp.
Pero considerando valores absolutos, no los promedios, la conductividad y el contenido de carbono organico si mostraron marcadas diferencias, pudiendo ser factores determinantes de las variaciones encontradas en la densidad de
Ostracoda. En el sitio 2 la conductividad llego a 710[my]S*[cm.sup.-1] y el contenido de carbono organico en sedimentos a 2,6%.
Amphipoda 13.8 0.1 Amphipoda
Ostracoda 6.1 0.0
Ostracoda Specific Prey taxa Lowest taxon volume Percent Osteichthyes "fish" unid.