1970, Nr 31
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Pozycja Open Access Method of cardiography in fishes under aquarium conditions(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Węgrzynowicz, Remigiusz; Zbanyszek, Regina; Wyższa Szkoła Rolnicza w Szczecinie, Katedra Fizjologii Ryb; Wyższa Szkoła Rolnicza w Szczecinie, Katedra Fizjologii RybThere was worked out the method oi siuuying heart functional changes in fish in aquarium experiments. In consequence of the operation a rubber balloon was placed in immediate heart neighbourhood and in connection with Marey ’ stambour the strength and frequency of heart systoles from sinus venosus to bulbus arteriosus was recorded.Pozycja Open Access Heart conditioned response in Salmo trutta (L.) in the field of inductive current(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Węgrzynowicz, Remigiusz; Zbanyszek, Regina; Muzykiewicz, Jarosław; Wyższa Szkoła Rolnicza w Szczecinie, Katedra Fizjologii Ryb; Wyższa Szkoła Rolnicza w Szczecinie, Katedra Fizjologii RybHeart conditioned responses in Salmo trutta (L.) in the field of inductive current were investigated by means of the cardiographic method. High excitability grade was proved . Heart responses appeared after the use of subthreshold stimuli for smooth muscles.Pozycja Open Access Water temperature effects on cardiographic changes in Salmo trutta (L.)(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Węgrzynowicz, Remigiusz; Zbanyszek, Regina; Wyższa Szkoła Rolnicza w Szczecinie, Katedra Fizjologii Ryb; Wyższa Szkoła Rolnicza w Szczecinie, Katedra Fizjologii RybInvestigations upon the lability of fre quency andstrenght of heart systoles in Salmo trutta (L. ) influenced by water temperature changes were carried out. There was showed the considerable lability of heart work when artificially decreasing and then increasing water temperature.Pozycja Open Access Elasticity of egg shells of salmonid fishes(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Winnicki, Aleksander; Wyższa Szkoła Rolnicza w Szczecinie, Katedra IchtiologiiThe egg shell is equally elastic throughout the embryonic development and all its properties remain unchanged until the hatching of larvae. In exceptional conditions as a result of mechanical pressure on an egg, the egg covering increases its measurements up to four times.Pozycja Open Access Structural and mechanical changes in the egg membranes of Salmo gairdneri Rich. During the period of hatching of the larvas(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Winnicki, Aleksander; Stańkowska-Radziun, Marta; Radziun, Krzysztof; Wyższa Szkoła Rolnicza, Katedra Ichtiologii; Wyższa Szkoła Rolnicza w Szczecinie, Katedra Oceanografii i Biologii Morza; Wyższa Szkoła Rolnicza w Szczecinie, Katedra Fizjologii rybStructural and mechanical properties of the egg membranes of Salmo gairdneri Rich. in the period of hatching were investigated. Only local action of hatching enzyme upon the egg membrane and local decrease of its strength was observed. In the places, which were not under the action of the enzyme, egg shell keeps its structure unchanged as well as its great strength. The differences in the thickness of egg shells of the same female and even of the same egg were ob served. No correlation between the thickness of the egg shell and its strength was found.Pozycja Open Access Growth of production in fisheries in relation to investments on land, investments in vessels and to labour(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Niegolewski, Andrzej; Daniszewski, Andrzej; Piaszczyński, Wacław; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Ekonomiki Gospodarki Rybnej; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Ekonomiki Gospodarki RybnejEffective investments, or their influence on growth of production, can not be considered in qualitative or quantitative aspects only. The intersubstitution of the particularfactors, as constituents of a production function de termines the basis for the proper allocationof funds.Pozycja Open Access Studies on chemical composition of cuttlefish (Sepia sp.) meat as related to its nutritive value(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Dąbrowski, Teofil; Kołakowski, Edward; Kołakowska, Anna; Karnicka, Barbara; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Technologii; Wyższa Szkoła Rolnicza w Szczecinie. Katedra TechnologiiThe chemical composition of edible cuttlefish flesh, distinguishing it into the mantle and arms together with part of the head, was examined. Comparison between the chemical composition of cuttlefish flesh and that of squid, originating from the same fishing ground and catching period, was made.Pozycja Open Access Thermal resistance of Bacillus subtilis spores studied in the meat extracts of the various sea and fresh-water fishes(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Zaleski, Stanisław; Ceronik, Edward; Sobolewska-Ceronik, Krystyna; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Mikrobiologii Rybackiej; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Mikrobiologii Rybackiej; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Mikrobiologii RybackiejSubject of the studies was the thermal resistance of the spores Bacillus subtilis suspended in the meat extracts of sea and freshwater fish. Depending on the spore suspending environment, the thermal resistance proved to be different.Pozycja Open Access Quantitative and qualitative changes of microflora in a skin slime of cod fish stored in a sterile ice(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Zaleski, Stanisław; Jara, Stanisław; Sobolewska-Ceronik, Krystyna; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Mikrobiologii Rybackiej; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Mikrobiologii RybackiejSubject of the investigations was a quantitative and qualitative composition of microflora in slime of a Baltic cod-fish directly after catching and during its storing in sterile ice. During the 12-day storing, the quantitative and qualitative changes in the bacterial composition were noted. The total quantity of bacteria and the percentage participation of the rods of Pseudomonas-Achromobacter group increased during the investigations.Pozycja Open Access Studies on the interdependence of the selected psychrophylic bacteria strains and their activity on Salmonella and Escherichia groups(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Zaleski, Stanisław; Garcia-Tello, Patricio; Rozmysł, Eugeniusz; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Mikrobiologii RybackiejInvestigated was an interdependence of the water microbes and their activity on Salmonella group. In some cases, stimulating and bacteriostatic effects were noted. No interactivity had been noted in many cases.Pozycja Open Access Studies on the quantitative and qualitative composition of microflora in alimentary canals at the various fishes of Gdansk Bay(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Zaleski, Stanisław; Łojkiewicz, Łucja; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Mikrobiologii Rybackiej; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Mikrobiologii RybackiejVarious quantitative and qualitative conditions of microflora in content of alimentary canal lengths were noted at cod, herring and sprat. The changes depended on season of a year. No bacteria was noted in stomach and middle intestine of cod during spawning season.Pozycja Open Access The parasite fauna of gar fish – Belone belone (L.) from Puck Bay(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Rynkiewicz, Jerzy; Wyższa Szkoła Rolnicza w Szczecinie. Katedra IchtiologiiFrom 1960 to 1967 the author carried out an investigation on the helminth fauna of gar-fish Belone belone (L.) from Puck Bay of the Baltic. It was established that the following species parasitise in gar-fish: Diplostomum spathaceum (Rud.), Tylodelphys sp., Scolex pleuronectis Müll., Contracaecum aduncum (Rud.), Cucullanus truttae (Fabricius), Pomphorhynchus laevis (Zoega), and Neoechinorhynchus rutili (Müll.). With the exception of Pomphorhynchus laevis (Zoega), they were not found in gar-fish yet, but they occur commonly in other Polish fishes.Pozycja Open Access Parasites of the flounder – Platichthys flesus (L.) from the brackish water of Kamieński Bay(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Brucko-Stempkowski, Ryszard; Wyższa Szkoła Rolnicza w Szczecinie. Katedra IchtiologiiA number of 116 specimens of Platichthys flesus (L.), of the total body length 14.5–28.5 cm, was examined for parasites. The fishes were caught during the spring of 1968 in Szczecin Lagoon in the vicinity of Kamień Pomorski. Thirteen species of parasites were found, including 4 species of digenetic trematodes, 1 species of cestode, 3 species of nematodes and 5 species of acanthocephalans. A total number of 75 fishes, i.e. 65.64%, was infested. There were found 4 species of parasites of marine origin.Pozycja Open Access Age, growth and changes of weight proportions and of chemical composition of eel during its life in Polish waters(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Piątek, Mieczysław; Wyższa Szkoła Rolnicza w Szczecinie. Katedra IchtiologiiThe author had studied the age and rate of growth, the weight increase and the chemical compositions of eels living under the most typical conditions, such as: sea, littoral waters and inland lakes. The investigated material comprised 646 specimens of fish; out of this, 499 represented the yellow eel (282 migrating from sea and river estuaries, 151 from Firth of Vistula River and 66 from inland lakes) and 96 represented the silver eels migrating to sea for spawning. 258 pieces were examined technologically and 158 were subjected to chemical analysis for content of proteins, fats, water and mineral compounds. The highest content of fat was found in the silver eels; lower content was noted in eels living in bays and still lower content in eels living in lakes. The lowest rate of fat increase was observed in eels from inland lakes. Author concludes that the content of fat in meat tissue is one of the characteristic conditions for silver eel, which stimulates it for spawning migrations. The existing literature on eel comprises strictly limited parts of the problems such as biological or technochemical, but does not comprise the problems in any complex form. Up to now, in Poland no detailed investigations have been carried out on the subject of eel. Aim of the present work was to determine the growth, changes in weight proportions and in chemical compositions of the eels living in Polish waters, with due consideration to the most typical conditions in economical aspect, such as: Baltic Sea - migrating and feeding (yellow eel) and silver eel Mazurian Lakes - feeding eel (yellow) Firth of Vistula River - feeding eel (yellow). The results of technochemical analysis permitted to define the usable and consumptive values of the fish.Pozycja Open Access The relation between the water temperature and the rate of growth of flounder Platichthys flesus (Ł.) in Gdańsk Bay(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Cięglewicz, Walerian; Hoppe, Gerda; Wyższa Szkoła Rolnicza w Szczecinie. Katedra IchtiologiiThe comparison of the annual length increase of 1955 and 1960 year-classes of the flounder with the water temperature in Gdańsk Bay during consecutive years of their life indicates a very close relation between the rate of growth of the flounder and the water temperature.Pozycja Open Access Record of the ceratioid fish, Linophryne lucifer, in the NW Atlantic(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Ejsymont, Leonard; Wyższa Szkoła Rolnicza w Szczecinie. Katedra IchtiologiiThis paper describes a rare specimen of deep-sea angler-fish, Linophryne lucifer, collected from a depth of about 400 metres on the NW Flemish Cap fishing-ground of the NW Atlantic. December 10, 1965; 255 (209+46) mm in total length, 1.00 kg in weight.Pozycja Open Access Description of meristic features of salmon trout (Salmo trutta trutta L.) from the rivers of Pomerania District(Wyższa Szkoła Rolnicza w Szczecinie, 1970) Chełkowski, Zygmunt; Wyższa Szkoła Rolnicza w Szczecinie. Katedra Szczegółowej Hodowli ZwierzątThe work deals with 32 meristic features of salmon trout from the following rivers of Pomerania: Rega, Parsęta, Unieść, Wieprza with Grabowa and Słupia. Adult individuals of salmon trout, fished out from the rivers during their spawning migration, were used as the material. The oscillation limits for values of particular meristic features were similar for males and females as well amongst one population, as between different populations of fishes. Meristic features for salmon trout were, thus, given as the result of total study, without taking into consideration sex of fishes or population to which they belonged.