Wyniki wyszukiwania

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Parasite fauna of smelt, Osmerus eperlanus [L.] from Lake Dabie, Northwestern Poland

100%

Wisniewski G., Piasecki W.

Wiadomości Parazytologiczne. Suplement

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2001

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tom 47

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nr 2

2

Effects of environmental factors on the occurrence of the Harpacticoida in the zooplankton and in the diet of the smelt Osmerus eperlanus [L.] in the Vistula Lagoon

84%

Gozdziejewska A., Paturej E., Krajewska-Soltys A.

Electronic Journal of Polish Agricultural Universities. Series Fisheries

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2006

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tom 09

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nr 2

The composition of food consumed by larval and juvenile smelt (Osmerus eparlanus) in the Vistula Lagoon was analyzed taking into account changing environmental conditions. The fish and zooplankton were collected at two stages of research, at the end of May and at the beginning of June 2000. The meteorological conditions and physicochemical parameters of water were determined within a limited research area, where a dense network of 15 sampling sites was established. The digestive tracts of 2552 smelts with a standard body length (SL) of 10 to 34 mm were subjected to preparation. A qualitative and quantitative analysis of diet composition was performed within 5-mm fish body length classes, taking into consideration time- and space-variation, as well as changing environmental conditions, primarily wind strength and the depth of sampling sites. Particular attention was paid to the occurrence of a non-specific component in the diet of the pelagic smelt – copepods of the order Harpacticoida, found in bottom deposits. These organisms were present both in the zooplankton and in the food of smelt, and the intensity of their occurrence varied in time and space. The analysis revealed that the presence of the Harpacticoida in deep waters and in the diet of smelt was directly proportional to wind strength and inversely proportional to the depth of sampling sites.

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Parasitic Metazoa in smelt (Osmerus eperlanus L.) from selected lakes of the Drawa watershed area

84%

Glocko M.

Annals of Parasitology

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2016

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tom 62

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nr Suppl.

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Chaoborus flavicans in the food web - competitor or resource for fish?

84%

Pekcan-Hekim Z., Liljendahl-Nurminen A., Horppila J.

Polish Journal of Ecology

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2006

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tom 54

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nr 4

In lakes, chaoborids can be a food resource and also act as competitors for planktivorous fish. Usually their density varies reciprocally with the density of planktivorous fish, which forage on chaoborids. Results from Lake Hiidenvesi show, however, that in deep clay-turbid lakes chaoborids may be the main regulators of herbivorous zooplankton although the density of planktivorous fish is high. This is because turbidity reduces the feeding efficiency of fish while the feeding of chaoborids is not affected by the high turbidity levels.

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Fish larvae as food for age group 1 smelt Osmerus eperlanus [L.} in the Vistula Lagoon in spring 1998 and 1999

84%

Horbowa K.

Bulletin of the Sea Fisheries Institute

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2001

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nr 2

6

Oxygen consumption and ammonia excretion in the mysid shrimp Neomysis integer and early developmental stages of the smelt Osmerus eperlanus from the Vistula Lagoon

84%

Maciejewska K., Opalinski K. W., Wawrzyniak L.

Bulletin of the Sea Fisheries Institute

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2004

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nr 3

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Molecular and morphological identification of helminthes found in Japanese smelt, Hypomesus transpacificus nipponensis, with notes on new host records of Eustrongylides ignotus and Raphidascaris gigi

67%

Abe N.

Acta Parasitologica

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2011

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tom 56

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nr 2

As an adult, Eustrongylides ignotus, recognized as a zoonotic parasite, is a parasitic nematode found in the gastrointestinal tract of fish-eating birds. As larvae, they are found in the connective tissue or body cavities of freshwater fish. In Japan, E. ignotus and E. tubifex have been found in three avian species, but their distribution in intermediate and paratenic hosts remains unclear. For this study, 16 commercial raw Japanese smelts, Hypomesus transpacificus nipponensis, were used for parasitological examination. A pinkish red worm collected from the abdominal wall of one smelt (6.3%) was identified as E. ignotus based on the high sequence similarity (99.9%) of the partial 18S ribosomal RNA gene and the morphology of its cephalic and caudal ends. Furthermore, a Raphidascaris-like nematode was found in the intestines of five smelts examined (31.3%) and was identified as R. gigi in view of the absence of lateral cuticular alae. Eustrongylides ignotus and R. gigi have been reported in various freshwater fish, but not in smelts. Therefore, this finding of E. ignotus and R. gigi in H. transpacificus nipponensis represents a new host record.

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Carotenoid content in pre-spawning smelt [Osmerus eperlanus L.], a planktivore from Lake Wigry [North-East Poland]

67%

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

Acta Scientiarum Polonorum. Piscaria

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2005

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tom 04

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nr 1-2

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Impact of hydrological and meteorological conditions on the spatial distribution of larval and juvenile smelt [Osmerus eperlanus] in the Vistula Lagoon [Southern Baltic Sea]

67%

Margonski P.

Bulletin of the Sea Fisheries Institute

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2000

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nr 3

10

Production and oxygen consumption in the early life stages of herring and smelt in the Vistula Lagoon [Baltic Sea]

67%

Opalinski K. W., Maciejewska K., Krajewska-Soltys A., Fey D. P.

Bulletin of the Sea Fisheries Institute

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2004

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nr 2

11

Length correction of larval and early-juvenile herring [Clupea harengus L.] and smelt [Osmerus eperlanus L.] after preservation in formalin and alcohol

67%

Fey D. P.

Bulletin of the Sea Fisheries Institute

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2002

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nr 1

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Energy budget in early stages of smelt Osmerus eperlanus [L.]

67%

Maciejewska K., Opalinski K. W., Margonski P.

Bulletin of the Sea Fisheries Institute

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2001

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nr 2

13

The occurrence, food and size structure of smelt [Osmerus eperlanus L.] larvae in the Lithuanian part of the Curonian Lagoon

67%

Ziliukiene V.

Bulletin of the Sea Fisheries Institute

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2002

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nr 2

Ograniczanie wyników

Parasite fauna of smelt, Osmerus eperlanus [L.] from Lake Dabie, Northwestern Poland

Effects of environmental factors on the occurrence of the Harpacticoida in the zooplankton and in the diet of the smelt Osmerus eperlanus [L.] in the Vistula Lagoon

Parasitic Metazoa in smelt (Osmerus eperlanus L.) from selected lakes of the Drawa watershed area

Chaoborus flavicans in the food web - competitor or resource for fish?

Fish larvae as food for age group 1 smelt Osmerus eperlanus [L.} in the Vistula Lagoon in spring 1998 and 1999

Oxygen consumption and ammonia excretion in the mysid shrimp Neomysis integer and early developmental stages of the smelt Osmerus eperlanus from the Vistula Lagoon

Molecular and morphological identification of helminthes found in Japanese smelt, Hypomesus transpacificus nipponensis, with notes on new host records of Eustrongylides ignotus and Raphidascaris gigi

Carotenoid content in pre-spawning smelt [Osmerus eperlanus L.], a planktivore from Lake Wigry [North-East Poland]

Impact of hydrological and meteorological conditions on the spatial distribution of larval and juvenile smelt [Osmerus eperlanus] in the Vistula Lagoon [Southern Baltic Sea]

Production and oxygen consumption in the early life stages of herring and smelt in the Vistula Lagoon [Baltic Sea]

Length correction of larval and early-juvenile herring [Clupea harengus L.] and smelt [Osmerus eperlanus L.] after preservation in formalin and alcohol

Energy budget in early stages of smelt Osmerus eperlanus [L.]

The occurrence, food and size structure of smelt [Osmerus eperlanus L.] larvae in the Lithuanian part of the Curonian Lagoon