Hatching ofBoeckella hamata(Copepoda: Calanoida) resting eggs from sediments of a tidally influenced lake
نویسندگان
چکیده
منابع مشابه
Oxygenation of anoxic sediments triggers hatching of zooplankton eggs.
Many coastal marine systems have extensive areas with anoxic sediments and it is not well known how these conditions affect the benthic-pelagic coupling. Zooplankton lay their eggs in the pelagic zone, and some sink and lie dormant in the sediment, before hatched zooplankton return to the water column. In this study, we investigated how oxygenation of long-term anoxic sediments affects the hatc...
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JOCHEN VANDEKERKHOVE,* STEVEN DECLERCK,* LUC BRENDONCK,* JOSÉ MARIA CONDE-PORCUNA, † ERIK JEPPESEN ‡, § AND LUC DE MEESTER* *Laboratory of Aquatic Ecology, Katholieke Universiteit Leuven, Ch. de Bériotstraat, Leuven, Belgium Instituto del Agua, Universidad de Granada, Ramón y Cajal 4 (edif. Fray Luis de Granada), Granada, Spain Department of Freshwater Ecology, The National Environmental Resear...
متن کاملHatching rates of resting eggs of 'Cladocera' (Crustacea; Branchiopoda) at a tropical bay, Brazil.
The aim of this study was to determine the development time of embryos and to estimate the hatching rates of resting eggs of cladocerans found in the sediment of Guanabara Bay, Rio de Janeiro, Brazil, under experimental conditions. Eggs were sorted by species (Penilia avirostris--Sididae; Pleopis polyphemoides and Pseudevadne tergestina--Podonidae) and incubated at a temperature of 25 degrees C...
متن کاملBactericidal Treatment of Hatching Eggs Iv. Hydrogen Peroxide Applied with Vacuum and a Surfactant to Eliminate Salmonella from Hatching Eggs
Bacteria (including salmonellae) can be pulled into and through the shell and membrane of broiler hatching eggs as they cool. When this occurs, salmonellae are out of reach of a surfaceapplied chemical treatment, because direct contact is usually required to achieve a kill. Over many years of research, a large number of disinfectant chemicals have been tested on hatching eggs. We have found H2O...
متن کاملHatching Eggs & Other 64
s of papers 17 a significant improvement in growth, feed efficiency, or mortality under conditions of this trial.
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ژورنال
عنوان ژورنال: New Zealand Journal of Marine and Freshwater Research
سال: 2001
ISSN: 0028-8330,1175-8805
DOI: 10.1080/00288330.2001.9516994