نتایج جستجو برای: rotifera
تعداد نتایج: 609 فیلتر نتایج به سال:
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Gut Content Analysis and Gastrosomatic Index of Cirrhinus mrigala from Local Fish Market Quetta City
Cirrhinus mrigala is a member of the cyprindae renowned for its delectable flavor. It has unique market status in Quetta due to high consumer demand and delicacy. Current study was conducted determine Gut Content Analysis Gastrosomatic index C. from local fish city Balochistan. About 280 samples were collected City during month June December 2022. The gut contents analyzed by using volumetric o...
Kızılca Pond has the most intensive population of Giant Spring Minnow fish (Pseudophoxinus anatolicus). In order to draw attention distribution area Anatolian endemic species, this pond was chosen as study and preliminary carried out on one-time zooplankton species diversity in July 2018. Zooplankton samples were taken from pelagic part lake at 8 m depth (sampling just once depth). Also, collec...
The invertebrate rotifer, introduced into toxicological research more than 40 years ago (Marriott et al. 1948; Allee and Rosenthal 1949), has since been used both as a model organism to investigate the biochemical and physiological actions of toxins (Lindner and Goldman 1964; Kleinow 1986) and as a test organism in bioassays to monitor pollution in marine and fresh water environments (Snell and...
Rotifers of Class Bdelloidea are abundant freshwater invertebrates known for their remarkable ability to survive desiccation and their lack of males and meiosis. Sequencing and annotation of approximately 50-kb regions containing the four hsp82 heat shock genes of the bdelloid Philodina roseola, each located on a separate chromosome, have suggested that its genome is that of a degenerate tetrap...
Although over 40 years of theory have addressed how evolutionary processes can affect the ecology of predator–prey interactions, few empirical data have addressed the same issue. Shertzer et al. and Yoshida et al. have recently combined manipulative experiments with mathematical models to demonstrate that evolutionary change in an algal prey strongly affects community dynamics with their rotife...
The occurrence of Microcystis blooms is a worldwide concern due to the numerous adverse effects on zooplankton. We therefore hypothesized that the cyanobacterium Microcystis aeruginosa is harmful to rotifer growth. Population and individual experiments were conducted with the same proportional volumes of Chlorella and Microcystis for given food densities. Life-table parameters, life-history tra...
BACKGROUND Biogeographical and macroecological principles are derived from patterns of distribution in large organisms, whereas microscopic ones have often been considered uninteresting, because of their supposed wide distribution. Here, after reporting the results of an intensive faunistic survey of marine microscopic animals (meiofauna) in Northern Sardinia, we test for the effect of body siz...
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