scholarly journals Feeding of Chaoborus flavicans larvae (Diptera: Chaoboridae) on Ceratium hirundinella and Daphnia rosea in a eutrophic pond.

1988 ◽  
Vol 49 (4) ◽  
pp. 227-236 ◽  
Author(s):  
Ping SHEI ◽  
Toshio IWAKUMA ◽  
Koichi FUJII
Keyword(s):  
Chaoborus Flavicans ◽  
Ceratium Hirundinella ◽  
Daphnia Rosea

Feeding efficiency of Chaoborus flavicans (Insecta, Diptera) under turbulent conditions

Hydrobiologia ◽  
2013 ◽  
Vol 722 (1) ◽  
pp. 9-17 ◽  
Author(s):  
Laura Härkönen ◽  
Zeynep Pekcan-Hekim ◽  
Noora Hellén ◽  
Jukka Horppila
Keyword(s):  
Chaoborus Flavicans ◽  
Feeding Efficiency

THE MORPHOLOGY AND FINE STRUCTURE OF CERATIUM HIRUNDINELLA (DINOPHYCEAE)1

1970 ◽  
Vol 6 (2) ◽  
pp. 137-149 ◽  
Author(s):  
John D. Dodge ◽  
Richard M. Crawford
Keyword(s):  
Fine Structure ◽  
Ceratium Hirundinella

CYST FORMATION IN THE FRESHWATER DINOFLAGELLAIE CERATIUM HIRUNDINELLA (DINOPHYCEAE)

1982 ◽  
Vol 18 (1) ◽  
pp. 121-129 ◽  
Author(s):  
D. V. Chapman ◽  
J. D. Dodge ◽  
S. I. Heaney
Keyword(s):  
Cyst Formation ◽  
Ceratium Hirundinella

scholarly journals Evaluación del fitoplancton en el embalse Escaba (Tucumán – Argentina) para caracterizar la calidad de sus aguas

2018 ◽  
Vol 53 (4) ◽  
pp. 521-542
Author(s):  
Silvia N. Martínez De Marco ◽  
Beatriz C. Tracanna ◽  
Sara C. Isasmendi ◽  
Mariela del C. Alderete ◽  
María de los Á. Taboada ◽  
...  
Keyword(s):  
Ceratium Hirundinella ◽  
Modelo Lineal

El objetivo de este trabajo es analizar las variaciones espacio-temporales del fitoplancton de la zona limnética del embalse Escaba y la desembocadura de sus tributarios: ríos Chavarría, Las Moras, El Chorro y Singuil, respecto a variables fisicoquímicas para caracterizar la calidad del agua durante 2010-2012. Se determinaron 135 taxones: Bacillariophyceae (77), Chlorophyta (40), Cyanophyta (12), Euglenophyta (5) y Dinophyta (1). La densidad algal varió de 84 a 6924 ind/ml y Ceratium hirundinella fue dominante excepto en primavera de 2011. La clorofila a tuvo un rango variable a nivel temporal y espacial fluctuando entre 6 y 2511 ?g/l, encontrándose mayores registros en los5afluentes. Los elevados valores de biomasa y la caracterización polisapróbica de sus aguas determinaron un estado ecológico deficiente o malo. La diversidad específica osciló entre 0-2,76. El modelo lineal generalizado detectó cambios en las abundancias de C. hirundinella entre las dos temporadas, sitios y meses acompañados por diferencias en algunas variables fisicoquímicas (amonio, OD y DBO5) Sólo se observó durante noviembre de 2011 una relación inversa entre la densidad del dinoflagelado con el amonio. Este trabajo aportó al conocimiento de la biodiversidad algal del embalse Escaba y amplió la distribución de C. hirundinella en la provincia de Tucumán.

The effects of interspecific competition on Diaptomus leptopus in a montane lake: an experimental field study

1983 ◽  
Vol 61 (10) ◽  
pp. 2273-2287 ◽  
Author(s):  
Roberta Jill Olenick
Keyword(s):  
Field Experiments ◽  
Calanoid Copepod ◽  
Interspecific Interactions ◽  
Low Density ◽  
Zooplankton Species ◽  
Respiration Rates ◽  
Survival And Reproduction ◽  
High Concentrations ◽  
Daphnia Rosea ◽  
Standard Density

Despite high densities in an upstream lake, the calanoid copepod Diaptomus leptopus is extremely scarce in oligotrophic montane Eunice Lake, British Columbia. Field experiments tested the hypothesis that competition from zooplankton resident in Eunice Lake prevents immigrant D. leptopus from colonizing.Experiments in 1979 exposed a standard density of D. leptopus to all Eunice Lake zooplankton species at lake densities (control) and at reduced densities (low density), and to all Eunice Lake species except one of Daphnia rosea (Daphnia removal), Diaptomus kenai (kenai removal), or Diaptomus tyrrelli (tyrrelli removal). Improved D. leptopus performance in noncontrol treatments was evidence for competition in controls. Performance measures included density, survival, and reproduction. Similar and poor performances of D. leptopus in control, Daphnia-removal, and kenai-removal treatments plus high concentrations of D. leptopus nauplii in the tyrrelli-removal treatment suggested that only D. tyrrelli competed with D. leptopus. However, similarity between tyrrelli-removal and low-density treatments in D. leptopus naupliar concentrations confounded competition from D. tyrrelli with diffuse competition from several Eunice Lake species combined. Experiments in 1980, designed to separate these effects, provided no evidence of interspecific interactions. Cool 1980 temperatures presumably reduced competition for algal foods by lowering zooplankton respiration rates.

Seasonal distribution and morphological changes of Ceratium hirundinella in two mediterranean shallow lakes

Hydrobiologia ◽  
2003 ◽  
Vol 506-509 (1-3) ◽  
pp. 213-220 ◽  
Author(s):  
Marija Gligora ◽  
Andelka Plenković-Moraj ◽  
Ivančica Ternjej
Keyword(s):  
Shallow Lakes ◽  
Morphological Changes ◽  
Seasonal Distribution ◽  
Ceratium Hirundinella
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