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1

Zmiany skladu polienowych kwasow tluszczowych w lipidach tkanki miesniowej sledzia baltyckiego [Clupea harengus membras L.] w cyklu rocznym

100%
Szczygielski M.
Folia Universitatis Agriculturae Stetinensis. Scientia Alimentaria
|
2002
|
tom 02
97-105
2
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Baltic herring (Clupea harengus membras) spawning grounds on the Lithuanian coast: current status and shaping factors

84%
Saskov A., Siaulys A., Bucas M., Daunys D.
Oceanologia
|
2014
|
tom 56
|
nr 4
3
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Baltic herring prey selectively on older copepodites of Eurytemora affinis and Limnocalanus macrurus in the Gulf of Riga

84%
Livdane L., Putnis I., Rubene G., Elferts D., Ikauniece A.
Oceanologia
|
2016
|
tom 58
|
nr 1
4

Activity of selected hydrolases in excretion-secretion products and homogenates from L3 and L4 larvae of Anisakis simplex [Nematoda: Anisakidae] parasitising herring

84%
Dziekonska-Rynko J., Rokicki J., Jablonowski Z.
Acta Ichthyologica et Piscatoria
|
2003
|
tom 33
|
nr 2
Background. Proteolytic enzymes may serve multiple functions: they may inhibit the host′s blood clotting, protect the parasite from the host ′s immune response, facilitate parasite′s migration within a tissue by decomposing the tissue barrier, enhance the hatching and moulting of larvae, and play an important role in their feeding. Learning their identity leads to a better understanding of a host-parasite system. The objective of this study was to check, using biochemical methods, if, in addition to proteases, ES products and extracts of 3rd and 4th larval stages of Anisakis simplex (Rudolphi, 1809) contain other hydrolases. Materials and Methods. Stage-3 larvae (L 3 ) of A.simplex were removed from Baltic herring, Clupea harengus membras Linnaeus, 1761 caught in the Baltic Sea. Stage-4 larvae (L 4) were obtained from an L 3 stage culture kept in Eagle ′s medium. The solutions containing ES products were collected and dialysed at 4°C against distilled water for 24 h. Larval extracts were obtained by homogenising the larvae in a physiological saline (0.9 % NaCl) solution in a glass homogeniser. The homogenate was centrifuged for 10 min at 3000 G. The supernatant was used in enzyme activity assays. Enzymatic activity of ES products and homogenates of L 3 and L 4 larvae of A. simplex was determined with the API ZYM test. Results. The excretion-secretion product of L 3 and L 4 larvae of A. simplex revealed activities of 10-and 11 hydrolases, respectively. Activity of esterase, esterase lipase, valine arylamidase, and N-acetyl-ß-glucosaminidase in the L 4 larvae extracts was higher than the activity of a corresponding enzyme assayed in the L 3 extracts. Only in the case of acid phosphatase, its activity in L 3 ES products was twice that of the activity found in ES products of L 4 larvae. Enzymes such as trypsin, chymotrypsin, and ß-glucosidase were not detected in extracts from L 3 larvae. Conclusion. Activities of most hydrolases in the L 4 extracts were higher than the activities of corresponding enzymes assayed in the L 3 extracts. The high activity of these enzymes found in L 4 larval extracts could be related to a different feeding mechanism of stage-4 larvae.
5

Internal helminth fauna of Baltic herring, Clupea harengus membras L. [Clupeiformes] from Southern Baltic

84%
Szostakowska B., Sulgostowska T.
Acta Ichthyologica et Piscatoria
|
2001
|
tom 31
|
nr 1
In the years 1994-1996, a total of 592 specimens of herring Clupea harengus membras L., caught in southern Baltic, were examined. The investigations revealed four species of trematodes: Hemiurus lühei, H. raabei, H. levinseni, Brachyphallus crenatus, two species of nematodes: Hysterothylacium auctum (syn. H. aduncum), and Anisakis simplex and three acanthocephalans: Echinorhynchus gadi, Metechinorhynchus salmonis and Pomphorhynchus sp. The finding of H. levinseni constitutes the first record of this species in Polish waters. The infection parameters of herring (prevalence, intensity and abundance) were compared in relation to different capture areas and seasons of the year. Possible affects of the feeding ground, fish body length and the spawning group of herring on the infection levels were also examined. No relation was observed between the place and the season of catch and the infection level of herring. The fish representing different feeding grounds (Baltic, Danish Straits) and sequential length classes showed variable parameters of infection.
6

Wplyw sezonu polowu i stanu dojrzalosci gonad na teksture miesa sledzi baltyckich [Clupea harengus membras L.]

67%
Lachowicz K., Kolakowski E.
Folia Universitatis Agriculturae Stetinensis. Scientia Alimentaria
|
2001
|
tom 01
53-57
7

Composition of fatty acids and sterols composition in brown shrimp Crangon crangon and herring Clupea harengus membras from the Baltic Sea

67%
Mika A., Golebiowski M., Skorkowski E. F., Stepnowski P.
Oceanological and Hydrobiological Studies
|
2012
|
tom 41
|
nr 2
8

Morphomechanic changes during the embryogenesis of spring herring [Clupea harengus L.] in the Puck Bay

67%
Formicki K., Korzelecka-Orkisz A., Bonislawska M., Tanski A., Wawrzyniak W., Winnicki A.
Bulletin of the Sea Fisheries Institute
|
2002
|
nr 2
9
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Polychlorinated dibenzo-p-dioxin, dibenzofuran and biophenyl content in selected groups of Baltic herring and sprat from Estonian coastal waters in 2006

67%
Roots O., Simm M.
Oceanologia
|
2007
|
tom 49
|
nr 3
The concentrations of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (DL-PCB) were determined in samples of Baltic herring (Clupea harengus membras) and sprat (Sprattus sprattus balticus) in 2006 from commercial catches in Estonian coastal waters, Baltic Sea. The dioxin content of the fish sampled in 2006 did not exceed the European Union’s maximum permissible level for PCDD/Fs (4.0 pg WHO -TEQ/g fresh weight) and for the sum of PCDD/Fs and DL-PCBs (8.0 pg WHO -TEQ/g fresh weight). PCDD/Fs and the sum of PCDD/Fs and DL-PCBs content in herring were 2.12 and 3.84 pg WHO-TEQ/g of fresh weight respectively; the corresponding figures for sprat were 1.94 and 3.82 pg WHO-TEQ/g of fresh weight. Comparable with our earlier data on the content of dioxins in three to four year old herring and two to three year old sprat, these data show that two servings of fish per week are not at all harmful to the health of the Estonian people; indeed, the opposite is more likely to be the case.
10

The total body condition factor of Southern Baltic stocks of herring Clupea harengus membras [L.] infected and non-infected with anisakid larvae

67%
Podolska M., Wyszynski M., Szopinska E., Rokicki J.
Oceanological Studies
|
1997
|
tom 26
|
nr 1
11

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
|
2004
|
nr 2
12

Anisakis simplex [Rud., 1809] [Nematoda: Anisakidae]: growth and morphometry of larvae from spring spawning herring [Clupea harengus membras L.] in the Vistula Lagoon and adjacent areas of the Baltic Sea

67%
Shukhgalter O.
Oceanological Studies
|
2002
|
tom 31
|
nr 1-2
13

Annual changes in composition of saturated and monoenoic fatty acids in Baltic herring [Clupea harengus membras L.] muscle tissue lipids

67%
Szczygielski M.
Folia Universitatis Agriculturae Stetinensis. Piscaria
|
2001
|
tom 28
14

Zasoby ryb i rybolowstwo Zalewu Wislanego

43%
Borowski W., Dabrowski H.
Magazyn Przemysłu Rybnego
|
1997
|
nr 4
5-8
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