Bottlenose dolphins (Tursiops truncatus) captured in the estuarine waters off the coasts of South Carolina and Florida were examined for the presence of Microsporidia, Cryptosporidium sp., and Giardia sp. DNA extracted from feces or rectal swabs was amplified by polymerase chain reaction using parasite-specific small subunit ribosomal RNA gene primers. All positive specimens were subjected to g...

Bu çalışmada bir curustacea parazit türü olan Argulus foliaceus olgusu Türkiye'de Kunduzlar Baraj Gölü'nden (Kırka-Eskişehir) yedi balık üzerinde incelenmiştir; Alburnus escherichii, Barbus plebejus, Capoeta tinca, Carassius gibelio, Chondrostoma nasus, Cyprinus carpio, Squalius cephalus. Parazit, nasus hariç tüm konakçı türlerinin solungaçlarında, yüzgeçlerinde ve derisinde bulunmuştur. Enfekt...

Injured fish skin leaks alarm substances that induce the fright reaction upon olfactory detection. The skin also contains a multitude of other odorants traditionally related to other behaviors, but to what extent they are detected upon injury is unknown. We have performed single unit recordings in the olfactory bulb (OB) of crucian carp while exposing the olfactory epithelium to skin extracts f...

From an interest in language as it is really spoken, and using corpus linguistics as methodology, a longitudinal research project has been launched compiling speech data from primary school to university (UAM corpus2). The present article reports on part of this research in progress, focusing on a cross-linguistic intonation study using computer language learner and English native corpora. The ...

The electrophysiological studies on the olfactory nervous system have been very few compared with those on the other sensory organs. It is well known that the fish can well smell out odorous substances in water. By observing the behaviour of fishes, Parker (1910, 1911) made it clear that the catfish and the killifish are able to smell odorous materials in water, and provided evidence that gusta...

We have analyzed the immunolabeling with the antibody RT97, a good marker for ganglion cell axons in several species, in the normal and regenerating visual pathways of teleosts. We have demonstrated that RT97 antibody recognizes several proteins in the tench visual system tissues (105, 115, 160, 200, 325 and 335 kDa approximately). By using immunoprecipitation and Western blot we have found tha...

Recruitment success of roach varied dramatically between 1979 and 1982 in Alderfen Broad, a small lake in eastern England. When fry were abundant (in 1979 and 198 1, but not in 1980 or 1982) the summer zooplankton became sparse and was dominated by copepods and rotifers. In years of good recruitment, as each of the preferred cladoceran prey species entered the diet of underyearling roach, its d...