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利用室内水泥池培养蒙古裸腹(moina mongolica Daday)的研究

现代渔业信息 2004年第9期19卷 28-30页

作者：陆建学夏连军谢立峰中国水产科学研究院东海水产研究所浙江省舟山市水产研究所中国浙江省舟山市316000

本文介绍了利用室内水泥池培养蒙古裸腹溞的实用技术.结果表明(1)在水温25±2℃,盐度25‰,投喂小球藻和酵母,连续充气培养的条件下,蒙古裸腹溞生长繁殖稳定,生产效率较高;(2)经过1 4天的培育,1号,2号,3号水泥池蒙古裸腹溞分别从接种密度... 详细信息

本文介绍了利用室内水泥池培养蒙古裸腹溞的实用技术.结果表明(1)在水温25±2℃,盐度25‰,投喂小球藻和酵母,连续充气培养的条件下,蒙古裸腹溞生长繁殖稳定,生产效率较高;(2)经过1 4天的培育,1号,2号,3号水泥池蒙古裸腹溞分别从接种密度285个/L,237个/L,185个/L,达到5177个/L,4147个/L,3096个/L;(3)利用3只36m3的水泥池培养蒙古裸腹溞59d,收获蒙古裸腹溞总产量527.9kg;(4)采用交替式连续培养蒙古裸腹溞,培养期间每天采收蒙古裸腹溞总量的20-3 0%,而蒙古裸腹溞增殖和收获能保持平衡.

关键词：室内水泥池培养技术蒙古裸腹溞 moina mongolica Daday

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Grazing rate and feeding selectivity of small and large bodied cladocerans in waters from lakes with different salinity and phytoplankton structure

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Journal of Oceanology and Limnology 2023年第4期41卷 1341-1351页

作者： Egor ZADEREEV Tatiana LOPATINA Svyatoslav OVCHINNIKOV Alexander TOLOMEEV Institute of Biophysics Krasnoyarsk Research CenterSiberian Branch of Russian Academy of SciencesAkademgorodokKrasnoyarsk 660036Russia Siberian Federal University Krasnoyarsk 660041Russia

Cladocera are filter feeders abundant in freshwaters,which consume phytoplankton particles in wide size and taxonomic *** ability of cladocerans to control phytoplankton abundance by grazing is determined by various factors including the characteristics of *** salinization may reduce the strength of top-down grazing control of phytoplankton because of the detrimental effects of salinity on the grazing intensity of *** performed grazing experiments with two species of Cladocera of different body lengths to test their ability to graze on phytoplankton in natural waters differing in salinity and size and taxonomic composition of food *** experiments demonstrated that the grazing rate was mostly controlled by the abundance of phytoplankton in the *** grazing rate was reduced at salinity *** 3 g/L of NaCl in the *** lower grazing rate was observed in the medium with larger phytoplankton *** species predominantly consumed phytoplankton particles with a diameter of 6-12μm,which may shift the size distribution of phytoplankton towards a larger average diameter of *** taxon-specific feeding was also observed,as both species predominantly consumed diatom ***,we found that because of grazing,the size and taxonomic characteristics of phytoplankton are shifted towards a less edible *** detrimental effect of elevated salinity on grazing rate supports growing concern about freshwater salinization negatively affecting water quality,particularly reducing top-down grazing control of phytoplankton.

关键词： selective feeding Daphnia moina top-down control phytoplankton salinity

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The Effect of Live Food on the Coloration and Growth in Guppy Fish, <i>Poecilia reticulata</i>

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Agricultural Sciences 2018年第2期9卷 171-179页

作者： Elsah Arce Uribe Marco Polo Franco Archundia Jorge Luna-Figueroa Laboratorio de Acuicultura Departamento de Hidrobiología Centro de Investigaciones Biológicas Universidad Autónoma del Estado de Morelos Cuernavaca Morelos México Maestría en Manejo de Recursos Naturales Centro de Investigaciones Biológicas Universidad Autónoma del Estado de Morelos Cuernavaca Morelos México

Colour production in fish is due mostly to food. In conditions of captivity, the type of food is restricted, while various types of food are used in aquaculture, from processed dry food to small aquatic animals. In this study, we used nauplii of Artemia franciscana, “water fleas” moina wierzejski, micro-worm Panagrellus redivivus, and commercial flakes. We used Poecilia reticulata, which is one of the most traded fish in ornamental aquaculture and hypothesise that if the live food influences the coloration and growth of P. reticulata, there must be differences in the intensity of colour pattern and growth rate in fish fed with different living animals. Consistent with our prediction, females and males of P. reticulata were more colourful when they were fed on A. franciscana, P. redivivus and M. wierzejski than when they were fed commercial flakes. Females and males of P. reticulata fed with A. franciscana grew in less time than fish fed with P. redivivus, M. wierzejski, or commercial flakes. We conclude that live food is an excellent way to affect growth and coloration in fish.

关键词： Coloration growth rate Artemia franciscana moina wierzejski Panagrellus redivivus

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