Straminipilous organisms growing on herbivorous pirapitinga (Piaractus brachypomus) and carnivorous piranha (Pygocentrus nattereri) from Poland.

We investigated the growth of straminipilous organisms on the skin, muscles and liver of herbivorous pirapitinga (Piaractus brachypomus) and carnivorous piranha (Pygocentrus nattereri) in water of three different eutrophication levels. Sixteen straminipilous organism species were found growing on the investigated body parts of both species of fish used as baits. The higher number of species was found on the baits of carnivorous species (15) when compared with the ones from the herbivorous pirapitinga (10 species).

Carotenoids and carotenoproteins in Asellus aquaticus L. (Crustacea: Isopoda).

Column (CC), thin-layer (TLC), high-performance liquid (HPLC) and ion-exchange chromatography (IEC), were used to investigate corotenoid and carotenoprotein complexes in Asellus aquaticus specimens from the Narew river. The following carotenoids were found: alpha-carotene, beta-carotene, beta-cryptoxanthin, lutein, zeaxanthin, diadinoxanthin, mutatoxanthin, crustaxanthin, echinenone, hydroxyechinenone, phoenicoxanthin, canthaxanthin and astaxanthin. Astaxanthin (37.

[Occurrence and morphology of some predatory fungi, amoebicidal, rotifericidal and nematodicidal, in the surface waters of Białystok region].

Studies concerned the occurrence of some predatory fungi in the surface waters: springs, rivers, lakes and ponds of Białystok region, collected in years 1999-2002. The following species of predatory fungi, amoebicidal, rotifericidal and nematodicidal were found: Arthrobotrys oligospora Fresenius, Zoophagus insidians Somlnestorff, Somnuerstorffia spinosa Arnaudov, Dactylaria brochopaga Drechsler, Euryancale sacciospora Dreschler and Zoopage phanera Drechsler. Physico-chemical parameters of waters in basins and water-courses did not prove important effect on existence of fungi.

[Aspects of ecological occurrences Trichosporon cutaneum (de Beurman Gougerot et Vaucher, 1909 ota, 1915) in waters north-east Polands].

The aim of work was settlement of occurrence of pathogenic fungus Trichosporon cutaneum in diverse ecological environments. Object to investigations former river Wegorapa, Supraśl, lakes of complex Mamry and Sejny group, of cultivation ponds in Popielewo and in Poryte Jabłoń a few springs of city Białystok. In investigations one used method of baits to isolated water fungus.

Carotenoprotein complexes in entomostracan crustaceans (Streptocephalus dichotomus and Moina micrura).

The carotenoprotein complexes of a freshwater fairy shrimp (Streptocephalus dichotomus) and a daphnid (Moina micrura) were characterised and compared. Based on thin layer chromatography and mass spectral analysis, a variety of cartenoprotein complexes such as astaxanthin, canthaxanthin, antheraxanthin, lutein, beta-cryptoxanthin and violaxanthin were found. Both crustaceans had astaxanthin and canthaxanthin as predominant prosthetic groups.

Accumulation and loss of Lindane in the muscles, liver and brain of some freshwater fish after intoxication with gamacarbatox suspension.

Experiments were conducted under laboratory conditions on young specimens of Carassius carassius L., Cyprinus carpio L. and on adult specimens of Leucaspius delineatus Haeckel.

Occurrence of keratinophilic fungus Lagenidium humanum Karling in the surface waters of Podlasie.

The occurrence of keratinophilic fungus Lagenidium humanum Karling was investigated, using the bait method, in relation to the environmental conditions in the surface waters of the River Bug, Supraśl and Zwierzyniec in Podlasie in the years 1995-2000. The fungus was found to be the most common at eutrophized sites of the River Supraśl and Biała, and snake exuviae was the most frequently colonized bait. It was revealed that the occurrence of Lagenidium humanum in the water reservoirs was mostly affected by the content of biogenes, suspended solids, oxidability and temperature.

Further studies on aquatic fungi in the River Narew within the Narew National Park.

Zoosporic and conidial fungi species and environmental factors in 10 various sites of River Narew in the Narew National Park were studied. Samples of water were collected in autumn 1999 and spring 2000 for hydrochemical analysis and the order to determine the number of fungal species. Buckwheat-seeds, hemp-seeds, cellophane and snake exuviae were used as bait during the exposure in laboratory.

Zoosporic and conidial fungi within the Podlasie stretch of the river bug.

Zoosporic and conidial fungi species and environmental factors in 5 various sites of the Podlasie stretch of the river Bug were studied. Samples of water were collected in October 1999 and April 2000 for hydrochemical analysis and the order to determine the number of fungal species. Buckwheat-seeds, hemp-seeds, cellophane and snake exuviae were used as bait during the exposure in laboratory.

Lichens of the Knyszyńska Forest (NE Poland).

During the period 1991-1999 the lichen species composition of 26 reserves of the Knyszyńska Forest were examined. 315 taxa, including 271 species were found. Epiphytic lichens were predominant, while epilithic species were the least common.

Effect of aquatic macrophytes on the quantity of bacterioplankton.

The authors investigated the effect of aquatic macrophytes on the quantity of bacterioplankton. Among the 7 species of aquatic macrophytes the most pronounced effect on bacterioplankton is exerted by Potamogeton crispus, causing a decrease in its quantity to 53.28%.

Effect of the cyanobacterium Anabaena spiroides Klebahn on the quantity of bacterioplankton in water of varied trophicity.

The authors investigated the effect of the cyanobacterium Anabaena spiroides on the quantity of bacterioplankton in water of varied trophicity. The cyanobacterium Anabaena spiroides, introduced to the polluted water of the river Biała has the strongest effect on bacterioplankton--the number of bacteria decreases to 31.78%.

Adaptative role of carotenoids and carotenoproteins in Cyclops kolensis Lilljeborg (Crustacea: Copepoda) specimens to extremely eutrophical conditions.

The authors, using column, thin-layer, and ion-exchange chromatography, investigated carotenoid and carotenoprotein complex content in Cyclops kolensis specimens from an extremely eutrophic pond. The following carotenoids were found to be present: beta-carotene, beta-cryptoxanthin, lutein epoxide, crustaxanthin, 4'-hydroxyechinenone, canthaxanthin, and astaxanthin. Carotenoprotein complex containing astaxanthin as the prosthetic group name gamma-crustacyanine was purified from Cyclops kolensis individuals examined.

Carotenoid content in Lota lota (L.) individuals in various biological activity periods.

The authors investigated the carotenoid content in the particular parts of Lota lota in summer, autumn, and winter, i.e. when burbots exhibit the lowest and highest activity.

Carotenoid content in Anguilla anguilla (L.) individuals undertaking spawning migration.

The authors investigated the carotenoid content in different parts of Anguilla anguilla (L.) undertaking spawning migration, in spring, summer and autumn. By means of column and thin-layer chromatography, the following carotenoids were found to be present: beta-carotene, epsilon-carotene, beta-cryptoxanthin, neothxanthin, lutein, tunaxanthin, zeaxanthin, lutein epoxide, 3'-hydroxyechincnone, canthaxanthin, idoxanthin, phoenicoxanthin, alpha-doradexanthin, beta-doradexanthin and astaxanthin.

Hyphomycetes in the ice of water reservoirs.

The presence of 111 Hyphomycetes species was noted in the water obtained from melting ice from four water bodies. The following fungi were recorded for the first time from Poland: Acrodictys martinii, A. peruamazonensis, Beltraniella peruamazonica, Blodgettia borneti, Cylindrocarpon aequatoriale, Diplocladiella appendiculata, Clavariopsis azlanii, Fusariella candida, Fusticeps laevisporus, Helicoma vaccinii, Heliscus submersus, Helminthosporium bigenum, Isthmolongispora geniculata, Lateriramulosa uniinflata, Lemonniera centrosphaera, Menispora amazonensis, Microstella pluvioriens, Nectria flavo-lanata, Paraarthrocladium amazonense, Paradactylella peruviana, Phaeodactylium acutisporum, Phialogeniculata multiseptata, Pseudohansfordia dimorpha, Pseudospiropes subliferus, P.

Hyphomycetes in the snow from gymnosperm trees.

The presence of 26 hyphomycete species was noted in snow water collected from coniferous trees. Camposporium pellucidum, Monodictys peruviana, Polystratorictus fusarioideus, Sporidesmium moniliforme, Tripospermum acerinum and Veronaea botryosa were recorded for the first time to Poland. Among the 26 species found in snow water from coniferous trees predominance of the socalled aero-aquatic hyphomycetes and only a few species belong to the group of aquatic hyphomycetes.

Hyphomycetes in rain water draining from intact trees.

The authors investigated Hyphomycetes in rain water flowing down from leaves of 10 gymnospermous and 10 angiospermous tree species in northeastern Poland. The presence of 57 Hyphomycetes species was noted. Only 17 species were found to develop both on gymnospermous and angiospermous tree species out of 57 found in rain water flowing down the trees.

Hyphomycetes in the water of peatmoss (Sphagnum).

The authors investigated hyphomycetes in the water of peatmoss (Sphagnum) collected from forest peatbogs in the Augustowska and Knyszyńska Forests in northeastern Poland. The presence of 28 hyphomycete species was noted. Cordana musae, Helicoon macrosporum, Sporidesmiella aspera, Stemphyliomma tambopataënse and Tripospermum pes-gallinae were recorded for the first time from Poland.

Hyphomycetes in morning dew of meadows.

Hyphomycetes in morning dew of meadows in northeastern Poland. The authors investigated of the Hyphomycetes in morning dew of meadows grass in the morning hours of sunny days in May and September 1994. The presence 23 Hyphomycetes species was noted.

Fungi in water reservoirs of the Western Suwałki Lake District and in some adjacent water basins.

In the years 1991-1995 the authors investigated the mycoflora and the effect of environmental factors of 36 lakes and 4 rivers in the Western Suwałki Lake District. In addition the effect of environment factors on the occurrence of various aquatic fungi was analysed. Altogether of 109 fungi species were recorded.

Aquatic fungi of the Narew River and its tributaries in the stretch from Siemianówka to Doktorce.

The work was undertaken to investigate the mycoflora of the lowland river Narew and its tributaries in the stretch from Siemianówka to Doktorce. Samples of water collected once a month over the years 1987-1991 for hydrochemical analysis and studies of the stretch from Siemianówka to Doktorce. The following fungi unknown from Poland were found in this rivers: Dangeardia laevis.

Attractiveness of leaves of twenty-five tree species for aquatic Hyphomycetes representatives.

Attractiveness of leaves on 25 tree species (4 gymnospermous species and 21 angiospermous species) for certain aquatic Hyphomycetes representative were studied. Evolution of 32 aquatic Hyphomycetes species grew on autumn leaves of tree species. The differences found in the occurrence of respective Hyphomycetes species on a variety of leaves are determined by the very nature of colonized substrates.

Some aquatic fungi of Hyphomycetes on tree leaves.

The presence of the aquatic Hyphomycetes in the rain water draining from the leaves of 17 species of trees (8 gymnospermous species and 9 angiospermous species) were studied. Evolution of 18 aquatic Hyphomycetes species was observed in the water draining from trees. The of most frequently encountered species of aquatic fungi Hyphomycetes in rain water draining from trees were Anguillospora pseudolongissima, Heliscus lugdunensis and Vargamyces aquaticus.

Studies of aquatic fungi. XIX. Aquatic fungi of the Rudawka River.

Studies of aquatic fungi were carried out in the annual cycle in the years 1987-1989 against a background of hydrochemical relations in the Rudawka River, a tributary of the Orlanka. 35 species of aquatic fungi were found, of which a prevailing number were reported many times in various water reservoirs. Such species, however, as Olpidium entophytum, Achlyogeton entophytum, Rhizidium verrucosum, Catenaria sphaerocarpa, Leptolegniella keratinophila and Zoophagus tentaclum are new to Polish hydromycoflora.