Wyniki wyszukiwania - Biblioteka Nauki

1

Population size, trend, and predictors of abundance of the Middle Spotted Woodpecker Dendrocoptes medius in the Natura 2000 Special Protection Area Krotoszyn Oak Forest in 2010–2020

100%

Kosinski Z. , Kempa M. , Zurawlew P.

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nr 3

2

Malacocenoses of isolated middfield copses

84%

Baucz-Malij B.

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nr 1-4

3

The content of heavy metals in shells of Mytilus sp. from the Adriatic, Baltic and Black seas

84%

Gal A. , Guzik M. , Kuczkowska-Kuzniar A. , Formicki G. , Stawarz R.

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nr 1

4

Scale radius growth versus standard length growth in some fish species

84%

Szypula J.

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nr 2

EN

The growth of the scale radius was followed in seven fish species (roach, bream, rudd, humped rockcod, perch, halibut, and zander). The results obtained by analyzing a total of 11304 individuals were compared with corresponding data on the standard length growth of each species. The mathematical description of growth was done with the following six models: the von Bertalanffy equation, the Ford-Walford formula, the second order polynomial, the Gompertz model, the power function, and the modified power function. Data on length growth and length growth versus scale radius growth, which were used to determine the scale radius growth of each species, were taken from the literature. The growth of both the scale radius and body length of the species analyzed was fairly uniform: the increment ratios, averaged for the entire growth period, were close to 0.9. However, slightly higher values, hence more uniform growth, were recorded in radius growth (0.93) than in fish length growth (0.90). The fish length increments in the first two years of life were lower than the scale radius increments during the same time.

PL

Celem niniejszej pracy było zbadanie przebiegu wzrostu promienia łuski różnych gatunków ryb i jego porównanie ze wzrostem długości. Materiałem były dane o wzroście długości 7 gatunków: płoci, leszcza, wzdręgi, notote- nii, okonia, halibuta i sandacza (tab. 1), uzyskane przez różnych autorów metodą odczytów wstecznych. Na podstawie przytaczanych zależności L/R określano wielkości promienia łuski w kolejnych latach życia. Wzrost zarówno promienia łuski, jak i długości ciała (rys. 1, 2, 3, 4) scharakteryzowano matematycznie przy zastosowaniu 6 modeli wzrostu: równania von Bertalanffy’ego, formuły Forda-Walforda, wielomianu 2 stopnia, modelu Gompertza, funkcji potęgowej i zmodyfikowanej funkcji potęgowej (tab. 3). Określono również dokładność matematycznego opisu wzrostu za pomocą różnych modeli, a także różnice wartości parametrów poszczególnych modeli powstające przy matematycznej charakterystyce wzrostu promienia łuski i długości ciała. Uzyskane wyniki wskazują na dość duże podobieństwo wzrostu promienia łuski i długości ciała tego samego gatunku. Różnice sprowadzały się do nieco bardziej równomiernego wzrostu promienia łuski w porównaniu ze wzrostem długości ciała. Również spadek przyrostów promienia łuski w 1 i 2 roku życia był wyraźnie mniejszy, niż spadek przyrostów długości (tab. 2). Stosowane modele opisują wzrost długości nieco dokładniej, niż wzrost promienia łuski (tab. 4), ale różnica dokładności jest nieznaczna (przeciętna procentowa różnica wyniosła 1,72% w przypadku wzrostu promienia łuski i 1,61% w odniesieniu do wzrostu długości).

5

Czynniki wpływające na produkcję zwierzęcą na terenach górskich

67%

Gajos M.

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tom 46

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nr 2

EN

About efficency production of animal decide economic factors and environmentaly including mountain lands. This lands characterized by: large resources structure of production. Process transformation of food production to market reguirements proceeds very slowly.

6

Catches of the sport fishing competitions along the Algarve Coast (Portugal): species, sizes, catch rates, and trends

67%

Guerreiro A. I. , Veiga P. , Erzini K.

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tom 41

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nr 3

EN

Background. Stocks of many marine fishes are in decline and a number of studies suggest that for some species the impact of recreational angling may be important. To date, only recreational (leisure) fishing surveys have been conducted in Portugal, with no studies on beach angling competitions, dynamically increasing in number over the past 10 to 20 years. In view of the above, we decided to evaluate the impact of such events on the Algarve coast (southern Portugal) in terms of the abundance, diversity, and respective weight of fish species caught and outline some conservation measures and recommendations for the management of the targeted species. Materials and methods. Participants of 22 angling competitions taking place between February and June 2007 were surveyed. In each competition a random sample of anglers was interviewed, and the specimens caught by each participant were identified, weighed, and measured. Results. Thirteen taxa belonging to eight families were identified, and the most common were: garfish, Belone belone (Linnaeus, 1761); mullets,Mugilidae (not identified); and mackerels, Scomber spp. A total of 563 specimens were sampled, totalling 75.4 kg of weight, with the average catch per angler weighing 0.5 ± 0.05 SE (n = 153) kg. Differences were also observed between the length at first maturity (L50) of the specimens caught and their respective Minimum Landing Size (MLS) and Allowed Minimum Size (AMS), most particularly in the case of the European seabass, Dicentrarchus labrax (L.), with almost all individuals caught measuring below the speciesspecific L50. Analysis of time series of competition results (1996–2009) showed no evidence of a decrease in catches or in mean weight. Conclusion. Based on the results we propose that the AMS for beach angling competitions should be increased to the MLS in order to prevent the capture of juvenile fishes, especially the sea bass. Future studies should address the size selectivity of the hooks used in beach competitions, with a view to the implementation of a minimum hook size for competitions.

7

Burullus ringing station (N Egypt) - ringing results and seasonal bird migration dynamics in 2005-2007

67%

Zaniewicz G. , Chrusciel J.

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nr 1-2

8

Biomass dynamics of fishing in estuarine lakes Lebsko and Sarbsko

67%

Orzechowski B. , Obolewski K.

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tom 12

EN

The research has shown the domination of fluctuative trends in the biomass dynamics for a major-ity of the caught fish species and decrease in the stocks of littoral phytophil fish. The main reason of the fishery breakdown of the pike perch in Łebsko and perch in Sarbsko was exploitation at a too big scale. The resources of the mentioned fish populations were drastically violated in the first decade of the 47 years of exploitation, that is in the years: 1952-1999. However, the highest fishing level of most of the fish species in annual cycles was achieved notoriously at spawning pe-riods during the whole 47 years. It just goes to show a complete ignorance of valid periods and the protective dimensions in the fishery practice. In the consecutive decades and for all the 47 years, the position and the degree of mass dominance for separate species of fish in fishing have been es-tablished. Pairs of superdominants and eudominants with the greatest quantitative participation in fishing have been distinguished for each of the lake. For the regeneration of the pike’s, the tench’ and the crucian carp’ population fishing of those species should be banned for the time of their generation. Reduction to small Cyprynidae species should be conducted by intensive stock in Łebsko with the pike and in Sarbsko with the pike-perch.

PL

W pracy wykazano przewagę trendów fluktuacyjnych w dynamice biomasy większości poławianych gatunków ryb i wygasanie połowów fitofilnych ryb litoralowych. Główną przyczyną załamania się połowów sandacza w Łebsku oraz okonia w Sarbsku był brak prawidłowej gospodarki rybackiej. Zasoby wymienionych populacji ryb naruszano drastycznie już od pierwszej dekady blisko 50-letniej eksploatacji. Szczytowe połowy większości ryb w cyklu rocznym były osiągane głównie w okresie tarła przez cały analizowany okres. Dla odrodzenia się populacji szczupaka, lina oraz karasia należy całkowicie zaniechać ich połowów na czas trwania generacji i zredukować drobne karpiowate poprzez przeprowadzenie intensywnego zarybiania jezior szczupakiem i sandaczem.

9

The first description of gastric Helicobacter in free-ranging wild boar [Sus scrofa] from Poland

67%

Fabisiak M. , Sapierzynski R. , Salamaszynska-Guz A. , Kizerwetter-Swida M.

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nr 1

171-174

EN

Specimens of gastric mucosa of 17 free-ranging wild boars (Sus scrofa) shot in the Central Poland during 2007/2008 hunting season were investigated for the presence of Helicobacter species. Histopathology, Helicobacter genus-specific 16S rRNA PCR, and DNA sequence analysis were employed. In PCR analysis the presence of Helicobacter's DNA was detected in one stomach. Obtained sequence analysis showed its relatedness to Helicobacter heilmannii type 2. In histopathology of the PCR-positive sample the presence of tightly coiled spiral bacteria was detected on the surface of the antral mucosa, in gastric pits and lumen of the upper parts of antral glands. Potential pathologic significance of the presence of Helicobacter in the stomach of free-ranging wild boars was obscured by the parasitic invasion-caused gastritis, and remains unknown.

10

The unique character of the Swietokrzyski region in the light of malacofaunistic studies

67%

Barga-Wieclawska J. A.

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nr 1

11

Participation of birds in the circulation of pathogenic fungi descend from water environments: a case study of two species of Charadriiformes birds

67%

Dynowska M. , Kisicka I.

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tom 05

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nr 2

EN

Mycological studies covered two species of Charadriiformes birds: Dunlin - Calidris alpina (41 individuals) and Ringed plover - Charadrius hiaticula (8 individuals). Swabs were collected from their beaks cavity and cloacae. Fungi (38 strains) were isolated from 29 birds (59.18% of the investigated). The most abundant were the yeast-like fungi (Candida, Cryptococcus, Rhodotorula), substantially dominated by Candida. albicans, which constituted 42.11% of all the fungi obtained. The fungi of the Aspergillus and Cryptococcus genera were found considerably less frequently (23.68% and 15.79%, respectively). The fungi isolated from beaks (19 birds) can be acknowledged as commensals (although parasitism cannot be excluded), whereas the fungi from cloacae (5 birds) may indicate mycosis of the gastrointestinal tract. As all of these fungi are potentially pathogenic to humans and animals, the examined birds were found to be an important link in the epidemiological chain of mycoses, associated with water reservoirs or infected birds.

12

Acute toxicity of nickel to five species of freshwater fish

67%

Svecevicius G.

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nr 2

453-456

EN

Flow-through toxicity tests were conducted on common freshwater fishes: rainbow trout (Oncorhynchus mykiss), three-spined stickleback (Gasterosteus aculeatus), roach (Rutilus rutilus), perch (Perca fluviatilis) and dace (Leuciscus leuciscus), to estimate their sensitivity to acute toxicity of nickel. The 96-hour median lethal concentration (96-hour LC50) values obtained from the tests ranged from 19.3 to 61.2 mg Ni/l. According to nickel sensitivity, the species tested may be arranged in the following sensitivity order: rainbow trout > three-spined stickleback > perch = roach > dace. Obtained data could be successfully applied in solving theoretical and practical goals of aquatic toxicology.

13

Historia badań nad gatunkami rodzaju Platycephala Fallen, 1820, (Diptera, Chloropidae)

59%

Grochowska M.

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nr 1-2

14

Braconid wasps [Hymenoptera, Braconidae] reared from mining Lepidoptera

59%

Marczak P. , Buszko J.

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nr 4

259-272

EN

Studies on parasitoids living on larvae of leaf-miners resulted in obtaining 29 species of Braconid wasps reared from mining Lepidoptera. Out of them 23 are for the first time recorded from Poland. For each species essential information on hosts, hosts’ food plants and localities are given.

15

An annotated checklist of terrestrial Parasitengona (Actinotrichida: Prostigmata) of the World, excluding Trombiculidae and Walchiidae

59%

Makol J. , Wohltmann A.

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EN

We provide a check-klist of nominal taxa of terrestrial Parasitengona mites (excl. Trombiculidae and Walchiidae) distributed worldwide and assigned to three super- families, i.e. Calyptostomatoidea, Erythraeoidea and Trombidioidea. The list contains 1784 species, of which 786 are known exclusively from larvae, 860 - from active postlarval forms and 138 - from both. The data on the type localities and the hitherto known distribution of the species are included in the survey.

16

Charakterystyka wybranych gatunków biegaczowatych (Coleoptera: Carabidae) pod kątem ich przydatności dla oceny ryzyka i monitoringu uwalniania GMO do środowiska

51%

Grabowski M. , Beres P. K. , Dabrowski Z. T.

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nr 4

EN

Based on the recent international discussions on environmental risk assessment (ERA) for genetically modified (GM) plants, the carabids’ community of maize fields were choosen for establishing and developing a methodology to select a proper bio-indicators. The GM maize varieties expressing toxin Cry 1 and Cry 3 may differently affect biology of carnivorous and phytophagous carabids and the flow of the toxin between trophic levels. Two criteria were used to select carabid species for the future standard laboratory tests: (a) prevalence in the communities of two experimental maize fields in central and south-eastern Poland as compared to Czech and (b) their food preference.

17

Interesujące Cerambycidae (Coleoptera) w Górach Świętokrzyskich i uwagi o ich bionomii

42%

Bidas M.

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tom 34

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nr 4