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Zoosporic fungi growing on the specimens of certain fish species recently introduced to Polish waters

100%

Czeczuga B., Kiziewicz B., Danilkiewicz Z.

Acta Ichthyologica et Piscatoria

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2002

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tom 32

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nr 2

Mycoflora developing on some fish species, recently introduced to Polish waters, has not been known. The authors incubated muscles of four fish species (monkey goby, Neogobius fluviatilis; racer goby, N. gymnotrachelus; Chinese sleeper, Perccottus glenii; and stone moroko, Pseudorasbora parva caught in the drainage area of the Bug River) in water taken from 6 different places. A total of 59 fungus species were found to grow on fish muscles studied: Achlya ambisexualis, A. americana, A. caroliniana, A. crenulata, A. debaryana, A. diffusa, A. dubia, A. intricata, A. klebsiana, A. oblongata, A. oligacantha, A. orion, A. polyandra, A. prolifera, A. proliferoides, A. radioasa, A. rodrigueziana, A. treleaseana, Aphanomyces irregularis, A. stellatus, Blastocladiella britannica, Blastocladiopsis parva, Catenaria verrucasa, Cladolegnia unispora, Dictyuchus monosporus, Isoachlya monilifera, Leptolegnia caudata, Leptomitus lacteus, Phlyctochytrium aureliae, Pythium afertile, P. aquatile, P. arrhenomanes, P. butleri, P. dissotocum, P. hemmianum, P. intermedium, P. myriotylum, P. ostracodes, P. periplocum, P. tenue, Rheosporangium aphamidermatus, Rhizophlyctis hirsutus, Rhizophydium laterale, R. macrosporum, Saprolegnia asterophora, S. diclina, S. eccentrica, S. ferax, S. hypogyna, S. litoralis, S. mixta, S. monoica, S. parasitica, S. pseudocrustosa, S. shikotsuensis, S. torulosa, S. uliginosa, Thraustotheca clavata, Zoophagus insidians. The results obtained may be important to ichthyopathologists, because 25 of the above-mentioned fungi are known as necrotroph or parasites of fishes.

2

Carotenoid content in the Nile tilapia [Oreochromis niloticus L.] cultured in Poland

100%

Czeczuga B., Czeczuga-Semeniuk E., Klyszejko B., Szumiec J.

Acta Scientiarum Polonorum. Piscaria

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2005

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tom 04

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nr 1-2

3

Alien Crustacea in Polish waters - introduction and Decapoda

100%

Grabowski M., Jazdzewski K., Konopacka A.

Oceanological and Hydrobiological Studies

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2005

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tom 34

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nr Suppl.1

4

Obesogammarus crassus [G.O.Sars, 1894] - one more Ponto-Caspian gammarid species in Polish water

100%

Konopacka A., Jazdzewski K.

Fragmenta Faunistica

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2002

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tom 45

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nr 1

5

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The Chinese mitten crab Eriocheir sinensis (Decapoda: Grapsidae) from Polish waters

84%

Normant M., Wiszniewska A., Szaniawska A.

Oceanologia

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2000

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tom 42

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nr 3

The Chinese mitten crab Eriocheir sinensis Milne-Edwards, 1854 is a newcomer to the Baltic Sea. Previous studies have shown that since the 1940s single large specimens of this species have been caught annually in Polish waters. The invasion of the Chinese mitten crab has been reported from many European countries, including Poland, where it is especially abundant in the Odra Estuary. Of 186 specimens captured in Lake Dąbie in August 1998, 45% were females and 55% males. The carapace width of these crabs varied between 53 and 88 mm and the average wet weight was 169±45.3 g.

6

The fecundity and reproduction of round goby Neogobius melanostomus [Pallas, 1811] in the Puck Bay [Baltic Sea]

67%

Wandzel T.

Bulletin of the Sea Fisheries Institute

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2000

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nr 2

7

Parasitofauna of the nine-spined stickleback from the Gulf of Gdansk and the mouth of Dead Vistula

67%

Morozinska-Gogol J.

Wiadomości Parazytologiczne

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2000

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tom 46

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nr 2

Four species, one subspecies and one parasite marked to the genus were collected from the nine-spined stickleback Pungitius pungitius L. from the Gulf of Gdańsk and the mouth of Dead Vistula. Nine - spined stickleback was noted as a new host in Polish coastal water for five parasites: Glugea anomala (Microsporidia), Diplostomum spathaceum (Digenea – metacercariae) and Apatemon sp. (Digenea - incysted metacercariae), Hysterothylacium aduncum (Nematoda - third stage larvae) and Thersitina gasterostci (Copepoda). Earlier in this area have been obserwed only ciliates Tnchodina domerguei.

8

Return of salmon back to Polish waters

67%

Bartel R.

International Journal of Ecohydrology and Hydrobiology

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2001

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tom 01

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nr 3

Deteriorating environmental conditions and overexploitation in situations of insufficient fish stocking or a complete lack of it led to the extinction of salmon in Polish waters. The last population of salmon in the Drawa River disappeared in the mid-1980s. The aim of this work was to re-establish salmon in Polish waters. The salmon for this purpose came from the Daugava River, when in 1985 and 1987, 50 000 and 30 000, eyed salmon eggs were bought, respectively. Up to 1996, salmon spawners were in the floating reared net cages in of the Puck Bay. Since 1994, spawns of salmon have been reared in freshwater at the fish farm "Aquamar" at Miastko. Stocking of smolt started in 1994 and by the year 2001, 2 238 653 one- and two-year-old smolts had been released. Smolts were released into rivers in the Pomeranian region, the Drawa, and the Vistula and its tributaries. Between 1994 and 2000, 77912 one- and two-year-old tagged smolts were released together with untagged ones. The first salmon in the Vistula and Drwęca rivers were noted in 1996. From 1997 to 2000, salmon catches in rivers fluctuated between 413 and 9714 kg. From 1997 salmon spawners were captured for artificial spawning. The largest spawners were 120-cm long and weighed 17.5 kg. Alongside untagged spawners, single tagged salmon were also used for spawning purposes. In 1997, a total of 382 000 eggs were obtained. In later years the number of spawns obtained grew, and in 2000 the number of eggs collected was 2 260 000. In 1996, spawns from salmon raised in pools at Świerzenko were collected. In 2000, there were 1168 females (length 30 - 70 cm) from which 9 300 000 eggs were collected. From 1997, large nests were observed at the spawning grounds in the Drawa River. In next years salmon nests were observed in the Drawa River and also in Parsęta and Wieprza rivers. Percentages of recovers from tagged salmon were very low and varied from zero to 7.35. Tagged salmon migrated all over the Baltic Sea. The most often they were caught in the Gulf of Gdańskarea, near Bornholm Island and in the western part of the Gulf of Finland. Salmon entered rivers mainly into Vistula, Drwęca and Wieprza rivers for spawning purposes. Some spawners strayed and entered rivers to which they were not released as smolt. Higher percentage of homing were observed among smolt into Vistula i Drwęca rivers than among smolt released into Pomeranian rivers. Tagged salmon after the firs year reached average length of 59.4 cm and average weight of 2583 g, after the second year 81.8 and 6255 g, after the third year 102.4 cm and 11800 g respectively.

9

The taxonomic revue of representatives of the extremely rare species in Polish waters collected within 1993-1999

67%

Krzykawski S., Wiecaszek B., Keszka S.

Folia Universitatis Agriculturae Stetinensis. Piscaria

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2001

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tom 28

Ograniczanie wyników

Zoosporic fungi growing on the specimens of certain fish species recently introduced to Polish waters

Carotenoid content in the Nile tilapia [Oreochromis niloticus L.] cultured in Poland

Alien Crustacea in Polish waters - introduction and Decapoda

Obesogammarus crassus [G.O.Sars, 1894] - one more Ponto-Caspian gammarid species in Polish water

The Chinese mitten crab Eriocheir sinensis (Decapoda: Grapsidae) from Polish waters

The fecundity and reproduction of round goby Neogobius melanostomus [Pallas, 1811] in the Puck Bay [Baltic Sea]

Parasitofauna of the nine-spined stickleback from the Gulf of Gdansk and the mouth of Dead Vistula

Return of salmon back to Polish waters

The taxonomic revue of representatives of the extremely rare species in Polish waters collected within 1993-1999