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A radio telemetry study of sea trout Salmo trutta L. spawning migration in the Leba River (northern Poland)

100%

Debowski P., Bernas R., Skora M.

Archives of Polish Fisheries

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2011

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tom 19

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nr 1

Large areas of the Łeba River catchment are inaccessible for fish because of barriers, and this reduces significantly their spawning possibilities. The sea trout Salmo trutta L. population in the Łeba River is sustained through compensatory stocking with smolts. In the autumn of 2007 and 2008, seventy two sea trout were caught in a lake, through which the river flows, several kilometers upstream from its mouth. These individuals were tagged with radio transmitters that were recorded by two automatic stations in the river. They were also monitored with active telemetry. Only 26 of these fish moved upstream (41% in 2007 and 33% in 2008), and five reached the spawning grounds. Neither the release location in the lake nor the size of the fish influenced the timing of the fish entering the river or the extent of their migration. Among the fish originated from smolt stocked in the river segment below the lake, 24% continued to migrate and entered the river after approximately 5.7 days, as compared to 45% of the wild fish entering the river after approximately 2.3 days. Most of the stocked fish remained in the lower reaches of the river, upstream from the lake.

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The influence of Lebork town on the pollutants load discharget into the Baltic Sea by the Leba River

80%

Trojanowski J., Parzych A., Trojanowski P.

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

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2002-2003

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tom 07

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Vascular flora of the Lebork clays excavations in the Leba-Reda marginal stream valley (N Poland)

80%

Sobisz Z., Osadowski Z., Truchan M., Wlodarczyk A.

Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

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2017

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tom 21

This paper presents results of research vascular flora at the area of the excavation of the Lębork clays was conducted in the period 2014-2016. 227 species of vascular plants were found at five distinct microhabitats: heaps top, greensword initial stages, heaps grassy slopes, land hollows and forest edge communities. The rare species at the area of Gdańskie Pomerania is Fumaria vaillantii and potentially endangered at the area of Western Pomerania. The six species found in the area under consideration, according to the regional list, have the status of the rare and endangered ones, i.e.: Alchemilla monticola, Alyssum alyssoides, Batrachium aquatile, Consolida regalis, Lathyrus tuberosus, Thlaspi perfoliatum and Veronica verna.

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Connection between parasite fauna of wild grayling Thymallus thymallus [L.] and farmed fish

80%

Rokicki J., Kulikowski M., Rolbiecki L.

Wiadomości Parazytologiczne

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1998

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tom 44

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nr 3

Ograniczanie wyników

2 Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline

1 Archives of Polish Fisheries

1 Wiadomości Parazytologiczne

1 Bernas R.

1 Debowski P.

1 Kulikowski M.

1 Osadowski Z.

1 Parzych A.

1 Rokicki J.

1 Rolbiecki L.

1 Skora M.

1 Sobisz Z.

1 Trojanowski J.

1 Trojanowski P.

1 Truchan M.

1 Wlodarczyk A.

1 2017

1 2011

1 1998

A radio telemetry study of sea trout Salmo trutta L. spawning migration in the Leba River (northern Poland)

The influence of Lebork town on the pollutants load discharget into the Baltic Sea by the Leba River

Vascular flora of the Lebork clays excavations in the Leba-Reda marginal stream valley (N Poland)

Connection between parasite fauna of wild grayling Thymallus thymallus [L.] and farmed fish