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1

The spatial orientation of sprat positioning

100%
Dowgiallo A.
Bulletin of the Sea Fisheries Institute
|
1999
|
nr 1
2

The determination of optimal lines for sprat deheading and gutting taking into consideration technological and technical issues

75%
Dowgiallo A.
Bulletin of the Sea Fisheries Institute
|
1999
|
nr 1
3

Sex ratio of herring and sprat from the Southern Baltic basins in 1980-2000

75%
Grygiel W., Wyszynski M.
Bulletin of the Sea Fisheries Institute
|
2003
|
nr 3
4

Feeding of Baltic herring and sprat in the period 1986-1996 in relation to their state and biomass

75%
Szypula J., Grygiel W., Wyszynski M.
Bulletin of the Sea Fisheries Institute
|
1997
|
nr 3
5

Food of Baltic herring and sprat in the years 1995-1996 in light of the availability of components

75%
Szypula J., Ostrowski J., Margonski P., Krajewska-Soltys A.
Bulletin of the Sea Fisheries Institute
|
1997
|
nr 2
6

The comparison of Baltic herring and sprat age-length keys derived from Polish commercial and research data

63%
Horbowy J.
Bulletin of the Sea Fisheries Institute
|
1999
|
nr 2
7

Feeding of herring and sprat in the Southern Baltic over 1971-1989

63%
Szypula J.
Acta Ichthyologica et Piscatoria
|
1992
|
tom 22
|
nr 2
8

Variability of sprat peak spawning and larvae appearance timing in the Southeastern Baltic Sea during the past six decades

63%
Karasiova E.
Bulletin of the Sea Fisheries Institute
|
2002
|
nr 2
9

Recent observations of the sex ratio and maturity ogive of Baltic sprat in the North-Eastern Baltic Sea

63%
Kaljuste O., Raid T.
Bulletin of the Sea Fisheries Institute
|
2002
|
nr 3
10

Assessment of the health state of fish of the southern Baltic; observations of externally visible symptoms of diseases

63%
Kosior M., Grygiel W., Kuczynski J., Radtke K., Wyszynski M.
Bulletin of the Sea Fisheries Institute
|
1997
|
nr 3
11

Porownanie zawartosci rteci w rybach baltyckich polawianych w latach 1971-1997

51%
Gajewska R., Malinowska E., Nabrzyski M., Ganowiak Z.
Bromatologia i Chemia Toksykologiczna
|
2000
|
tom 33
|
nr 3
233-236
Porównano zawartość rtęci w dorszach, śledziach i szprotach poławianych w południowej części Bałtyku w latach 1971-1997.
12
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Development and growth of Temora longicornis: numerical simulations using laboratory culture data

51%
Dzierzbicka-Glowacka L., Lemieszek A., Zmijewska I. M.
Oceanologia
|
2011
|
tom 53
|
nr 1
Quantitative expressions are presented to describe the effects of temperature and food concentration on stage duration and growth rate of Temora longicornis for each of the model stage groups (N1–N6 – naupliar stages, C1, C2, C3, C4, C5 –the five copepodid stages). The calculations were made on the basis of experimental data from the literature for T. longicornis from the south-eastern and the southern North Sea. Relationships were obtained between the growth parameters and temperature for the 5–10◦C temperature range and food concentrations from 25 mgC m−3 to excess. Also computed was the total mean development time as a function of the above-mentioned parameters, temperature and food availability. The simulations computed here are similar to the experimental results. The growth rates for successive stages were obtained according to the correction of the ‘Moult Rate’ method, which allows the use of mean weights and stage durations. The calculations also suggest that three complete generations of T. longicornis from the Gdańsk Deep (the southern Baltic Sea) can develop during a single year.
13

Fish as an indicator of pollution of the Baltic Sea waters with some heavy metals

51%
Protasowicki M., Chodyniecki A.
Oceanologia
|
1981
|
tom 13
14
Artykuł dostępny w postaci pełnego tekstu - kliknij by otworzyć plik
Content available

Feeding ecology of sprat (Sprattus sprattus L.) and sardine (Sardina pilchardus W.) larvae in the German Bight, North Sea

51%
Voss R., Dickmann M., Schmidt J. O.
Oceanologia
|
2009
|
tom 51
|
nr 1
117-138
The abundance of the sardine in the North Sea suddenly increased after 1995. Since 2002, the sardine has been spawning regularly in the German Bight, and all its life stages can be found in the area. The larval feeding ecology of two small pelagic clupeiform species with very similar life histories was investigated, the particular aim being to determine signs of food overlap. The distribution and feeding of sprat and sardine larvae were investigated during late spring 2003 on two transects covering a wide range of environmental conditions in the German Bight. Larvae co-occurred at all the stations investigated. Sprat and sardine larvae shared a wide range of prey types. Gut fullness and feeding success were similar in both species; however, potential food competition is avoided to some extent by different habitat preferences.
15

Lipid oxidation and lysine availability in smoked Atlantic mackerel fillets and Baltic sprats

51%
Kolodziejska I., Niecikowska C., Sikorski Z. E.
Bulletin of the Sea Fisheries Institute
|
2004
|
nr 3
16

Spatial and temporal distribution of flounder fished in the Southern Baltic. Analysis of the catch records from Polish cutter logbooks

51%
Draganik B., Psuty-Lipska I.
Bulletin of the Sea Fisheries Institute
|
2002
|
nr 3
17
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

51%
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.
18

Temporal [1980-2001] and geographic variation in the sexual maturity at age and length of herring and sprat inhabiting the Southern Baltic

51%
Grygiel W., Wyszynski M.
Bulletin of the Sea Fisheries Institute
|
2003
|
nr 2
19

Non-ortho polychlorinated biphenyls [PCBs] in Baltic fish in the 1999-2003 period

51%
Barska I., Guz-Ruczynska W., Skrzynski I., Szlinder-Richert J., Usydus Z., Bykowski P., Hove H., Heggstad K., Bjordal A.
Bulletin of the Sea Fisheries Institute
|
2005
|
nr 1
20

The effect of the composition of fatty acids of Baltic fishes and frozen storage process on the antioxidant activity of aqueous extracts of rosemary and sage, as well as BHA and Endox

51%
Szczepanik G., Stodolnik L.
Acta Ichthyologica et Piscatoria
|
2003
|
tom 33
|
nr 1
Background. Natural antioxidants become increasingly important in fish processing and particularly in the preservation phase of fish raw materials. Some of them can protect lipids, containing essential unsaturated fatty acids. The aim of the present study was to determine antioxidant properties of aqueous extracts of rosemary and sage, compared with the activity of BHA (butylated hydroxyanisole) and Endox in lipids of fresh Baltic fishes (herring, sprat, flounder) and those subjected to frozen storage at -25°C for 6 months. Materials and Methods. Antioxidant activity of the additives was determined based on β-carotene changes in fish lipids after 10, 20, 40, and 60 min of heating at 50°C. Results. The plant-origin extracts and the synthetic antioxidants used, inhibited most extensively β-carotene changes in the lipids of non-frozen herring. They were the least effective in non-frozen sprat lipids. The frozen storage lowered the antioxidant action of the additives in relation to β-carotene in lipids of herring and flounder, whereas in sprat lipids the antioxidants used, continued their protective action for β-carotene, during heating. Elongation of the heating time from 10 to 60 min increased the β-carotene losses and their pace followed the logarithmic scale. The activity of the antioxidants in fish lipids decreased along with the increase of polyunsaturated fatty acids (C20 : 5, C22 : 5, and C22 : 6) contents Conclusion. The antioxidant properties of plant-origin additives and synthetic antioxidants decreased along with the increased content on unsaturated fatty acids of fish lipids. Six-month-long frozen storage of the fish raw materials resulted in a decrease of the protective properties of the additives used, in relation to the lipids of Baltic herring and flounder. The best protective properties for lipids of flounder and sprat exhibited Endox, while aqueous extract of rosemary was the most effective in relation to sprat lipids.
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