Predation and respiration by the small cyclopoid copepod Oithona similisr: How important is feeding on ciliates and heterotrophic flagellates?
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منابع مشابه
Feeding rates and prey : predator size ratios of the nauplii and adult females of the marine cyclopoid copepod Oithona davisae
We studied the feeding behavior of the nauplii and adult females of the marine cyclopoid copepod Oithona davisae in the laboratory. Functional response experiments showed that O. davisae can feed on a broad size range of prey but that high clearance rates only occur in a narrow prey size range. Neither the nauplii nor the females were able to feed on Nannochloropsis oculata (2.5 mm), but . 4 mm...
متن کاملFeeding by the cyclopoid copepod Oithona similis on the microplankton assemblage in the Oyashio region during spring
Onboard incubation experiments were conducted to examine the feeding rates and selectivity of the cyclopoid copepod Oithona similis on natural assemblages of microplankton during the spring bloom in the Oyashio region. O. similis cleared ciliates at higher rates (2.8–11.9 mL copepod 1 d ) than dinoflagellates (1.4 mL copepod 1 d ), with no detectable ingestion of diatoms. Clearance increased wi...
متن کاملPredation by the heterotrophic dinoflagellate Protoperidiniurn cf. divergens on copepod eggs and early naupliar stages
The heterotrophic dinoflagellate Protopemdinium cf. divergens, known as prey for adult copepods, itself feeds on copepod eggs and early naupliar stages. One to several P. cf. divergens can attack an egg or nauplius larger than themselves. The time for an egg to be digested was proportional to the number of P. cf. divergens attacking it. Ingestion rates of P, cf. djvergens on Acartia tonsa eggs ...
متن کاملthe present study is a survey os postmodern historical novel with respect to the voice of women. it argues how the recorded history is regulated by the rules of power and how women have been excluded from this discourse.ther study analysez angela carters nights at the circus as an example of postmodern historical novel to illustrate how this novel has questioned the historical narrative and how it has inserted women into history by breaking the rules of patriarchy.
the present thesis is a study of postmodern historical novel with respect to the voice of women. according to postmodern historiography,the established institution of history is one of the other manifestations of patriarchys power which has silenced women. the study analyzes angela carters nights at the circus as a postmodern historical novel which makes its female characters transgress the pat...
15 صفحه اولFeeding and grazing impact by small marine heterotrophic dinoflagellates on heterotrophic bacteria.
We investigated the feeding of the small heterotrophic dinoflagellates (HTDs) Oxyrrhis marina, Gyrodinium cf. guttula, Gyrodinium sp., Pfiesteria piscicida, and Protoperidinium bipes on marine heterotrophic bacteria. To investigate whether they are able to feed on bacteria, we observed the protoplasm of target heterotrophic dinoflagellate cells under an epifluorescence microscope and transmissi...
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ژورنال
عنوان ژورنال: Journal of Plankton Research
سال: 1997
ISSN: 0142-7873,1464-3774
DOI: 10.1093/plankt/19.9.1275