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Tytuł:
A comparative analysis of two allochthonous populations of the Chinese mitten crab (Eriocheir sinensis H. Milne-Edwards, 1853) from the Szczecin Lagoon (NW Poland) and San Francisco Bay (US West coast)
Autorzy:
Czerniejewski, P.
Wawrzyniak, W.
Pasewicz, W.
Beldowska, A.
Powiązania:
https://bibliotekanauki.pl/articles/48843.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
sexual dimorphism
San Francisco Bay
Polska
Eriocheir sinensis
Szczecin Lagoon
morphometry
body weight
allochthonous population
Chinese mitten crab
Opis:
Selected biological and morphometric characters of two populations of the nonindigenous Chinese mitten crab,one from the Szczecin Lagoon (SL) and the other from San Francisco Bay (SFB),b oth sampled in autumn, were analysed. The SL crabs showed a significantly higher individual weight,l ength and carapace width. Males accounted for 55% (87 individuals) of the 179 SL crabs,an d 62.9% (90 individuals) of the SFB crabs. Statistical analysis of metric characters,expr essed as a percentage of carapace width (X2),en abled four diagnostic characters to be identified: abdomen width (X11),carapace height (X3),left claw length (X7) and carapace length (X1). These jointly explain 71.75% of the differences between the SL and SFB crabs and are indicative of the distinctness of the populations.
Źródło:
Oceanologia; 2007, 49, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A new record of the invasive blue crab (Callinectes sapidus Rathbun, 1896) and his parasite from the Baltic basin
Autorzy:
Czerniejewski, P.
Kosakowska, N.
Linowska, A.
Rybczyk, A.
Powiązania:
https://bibliotekanauki.pl/articles/47818.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
blue crab
Callinectes sapidus
alien species
invasive species
spread
parasite
Trichodina
Baltic Sea
Lake Dabie
Źródło:
Oceanologia; 2020, 62, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Biosorption Performance of Biodegradable Polymer Powders for the Removal of Gallium(III) ions from Aqueous Solution
Autorzy:
Lee, Ching-Hwa
Lin, Hang-Yi
Cadogan, Elon I.
Popuri, Srinivasa R.
Chang, Chia-Yuan
Powiązania:
https://bibliotekanauki.pl/articles/778539.pdf
Data publikacji:
2015
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
chitosan
crab shell powder
gallium
Langmuir-Freundlich
kinetics
Opis:
Gallium (Ga) is considered an important element in the semiconducting industry and as the lifespan of electronic products decrease annually Ga-containing effluent has been increasing. The present study investigated the use of biodegradable polymer powders, crab shell and chitosan, in the removal of Ga(III) ions from aqueous solution. Ga(III) biosorption was modeled to Lagergren-first, pseudo-second order and the Weber-Morris models. Equilibrium data was modeled to the Langmuir, Freundlich and Langmuir-Freundlich adsorption isotherms to determine the probable biosorption behavior of Ga(III) with the biosorbents. The biosorbents were investigated by Fourier Transform Infrared Spectroscopy, X-ray Diffraction and Scanning Electron Microscopy/Energy Dispersive Spectra analysis.
Źródło:
Polish Journal of Chemical Technology; 2015, 17, 3; 124-132
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Body weight, condition, and carapace width and length in the Chinese mitten crab (Eriocheir sinensis H. Milne-Edwards, 1853) collected from the Szczecin Lagoon (NW Poland) in spring and autumn 2001
Autorzy:
Czerniejewski, P.
Wawrzyniak, W.
Powiązania:
https://bibliotekanauki.pl/articles/47568.pdf
Data publikacji:
2006
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Polska
autumn
spring
Eriocheir sinensis
Szczecin Lagoon
condition
body weight
Baltic Sea
carapace
Chinese mitten crab
Opis:
A newcomer to the Baltic Sea, the Chinese mitten crab is especially abundant in the Szczecin Lagoon (NW Poland), where it was first reported in 1927. Body weight, and carapace width and length, were studied in 647 individuals collected with fyke nets in the Szczecin Lagoon from 30 March – 18 April2001 and from 5–21 November 2001. 51.01% of the 543 autumn specimens were males, but only 30.97% of the 113 spring specimens were males. Body weight varied from 45.1 to 306.5 g, carapace length from 41.07 to 81.02 mm and carapace width from 46.68 to 88.85 mm. The autumn crabs were significantly heavier than the spring specimens.
Źródło:
Oceanologia; 2006, 48, 2
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Co może blokować wykorzystanie potencjału twórczego? Psychologiczne inhibitory samorealizacji
What Can Block the Use of Creative Potential? Psychological Inhibitors of Self-Realization
Autorzy:
Janiszewska, Agnieszka
Powiązania:
https://bibliotekanauki.pl/articles/30148748.pdf
Data publikacji:
2023
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
teorie samorealizacji
syndrom oszusta
kompleks Jonasza
syndrom wysokiego maku
mentalność kraba
self-realization theories
the impostor syndrome
the Jonah complex
tall poppy syndrome
crab mentality
Opis:
W artykule przywołuję wybrane definicje i teorie samorealizacji z obszaru pedagogiki i psychologii (zwłaszcza psychologii pozytywnej). Odwołuję się też do kilku teorii potrzeb, które zawierają jako osobną kategorię potrzebę samorealizacji. Następnie dokonuję kompilacji zaproponowanych przez przedstawicieli wspomnianych dyscyplin (zwłaszcza Abrahama Maslowa) lub analizowanych przez współczesnych badaczy-psychologów inhibitorów procesu samorealizacji, takich jak: syndrom oszusta, kompleks Jonasza, syndrom wysokiego maku, mentalność kraba. Opisane inhibitory dotyczą zwłaszcza obszaru interakcji międzyludzkich i ujawniać się mogą w ramach grup społecznych, takich jak np. środowiska pracy.
In the article, I refer to selected definitions and theories of self-realization in the area of pedagogy and psychology (especially positive psychology). I also mention several theories of human needs, which include the need for self-realization as a separate category. Then, I compile the inhibitors of the self-realization process proposed by the representatives of the aforementioned disciplines (specifically Abraham Maslow) or analyzed by modern researchers-psychologists, i.e.: the impostor syndrome, the Jonah complex, tall poppy syndrome, crab mentality. The described inhibitors are mainly relevant to the area of interpersonal interactions and might appear within social groups, e.g. in the workplace environment.
Źródło:
Nauki o Wychowaniu. Studia Interdyscyplinarne; 2023, 16, 1; 289-302
2450-4491
Pojawia się w:
Nauki o Wychowaniu. Studia Interdyscyplinarne
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Environmental cadmium and lead concentrations in the Bahia Blanca Estuary (Argentina). Potential toxic effects of Cd and Pb on crab larvae
Autorzy:
Ferrer, L.
Contardi, E.
Andrade, S.J.
Asteasuain, R.
Pucci, A.E.
Marcovecchio, J.E.
Powiązania:
https://bibliotekanauki.pl/articles/48726.pdf
Data publikacji:
2000
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
organic matter
estuarine water
Bahia Blanca Estuary
environment
lead concentration
pH
toxic effect
sediment
crab
cadmium concentration
Argentina
temperature
salinity
larva
Chasmagnathus granulata
Opis:
The Bahia Blanca Estuary includes a large tidal plain with an area close to 1150 km2.Mud is predominant in its sediments, where a significant population of the crab Chasmagnathus granulata lives during the whole year.Mo reover, there are important urban and industrial discharges into this environment. Cd and Pb concentrations were determined in samples of water (for both dissolved and suspended particulate matter) and surface sediments (total and <63 μm fractions).Or ganic matter was analysed in the sediments, while temperature, salinity, pH and dissolved oxygen were measured in the estuarine water The metal concentrations determined in this study were: 1.47 ± 1.08 μg Cd g−1 and 14.68 ± 4.31 μg Pb g−1 in surface sediments; 2.21 ± 1.33 μg Cd g−1 and 25.70 ± 7.09 μg Pb g−1 in the <63 μm sediment fraction; 0.18 ± 0.11 μg Cd g−1 and below the analytical detection limit of Pb in suspended particulate matter. Furthermore, dissolved Cd and Pb were lower than the norms for marine and estuarine waters (2 μg dm−3 for Cd and 5 μg dm−3 for Pb, E.P.A.). Simultaneously, the effects of Cd and Pb were studied on recently hatched larvae of Ch. granulata, through 96-hour semi-static acute assays.Via bility was the criterion assessed in the assays.LC 50 (96 h) for Cd was 46.43 μg dm−3 (36.92 − 56.34 μg dm−3), whilst that for Pb was 1. 0 mg dm−3 (0.79 − 1.23 mg dm−3), which demonstrates that Cd is more toxic towards larvae.F inally, both LC50 values determined for Cd and Pb were higher than the corresponding metal concentrations measured in the Bah´ıa Blanca environment.
Źródło:
Oceanologia; 2000, 42, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Epibiota associated with setae on Chinese mitten crab claws (Eriocheir sinensis H. Milne-Edwards, 1853): a first record
Autorzy:
Normant, M.
Korthals, J.
Szaniawska, A.
Powiązania:
https://bibliotekanauki.pl/articles/47515.pdf
Data publikacji:
2007
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
claw
new habitat
fresh water
Eriocheir sinensis
brackish water
animal morphology
Chinese mitten crab
crab
Opis:
Eriocheir sinensis H. Milne-Edwards, 1853 is a non-native species found in European waters. Analyses of mitten crabs caught in brackish waters (Gulf of Gdańsk, Poland) and in freshwater (Havel River, Germany) have indicated that numerous epibionts (possibly temporary) inhabit the dense setal mats that cover the chelipeds. Of the 950 associates found on 22 crabs collected from brackish water, the most abundant were Nematoda (82.3%), followed by Bivalvia (10.3%), Crustacea (5.6%), Oligochaeta (1.2%) and Gastropoda (0.6%). In comparison, 1280 specimens (Chironomidae – 67.6% and Halacaridae – 32.4%), were identified from 13 crabs collected in freshwater. As this crab can migrate long distances, it is capable of transporting native and non-native species via its mittened claws to new habitats.
Źródło:
Oceanologia; 2007, 49, 1
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Epibiotic mites associated with the invasive Chinese mitten crab Eriocheir sinensis – new records of Halacaridae from Poland
Autorzy:
Normant, M.
Zawal, A.
Chatterjee, T.
Wojcik, D.
Powiązania:
https://bibliotekanauki.pl/articles/48732.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
epibiotic mite
mite
Chinese mitten crab
Eriocheir sinensis
Halacaridae
non-native species
Oribatida
Hydrachnidia
Polska
Źródło:
Oceanologia; 2013, 55, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Feeding ecology of the American crab Rhithropanopeus harrisii (Crustacea, Decapoda) in the coastal waters of the Baltic Sea
Autorzy:
Hegele-Drywa, J.
Normant, M.
Powiązania:
https://bibliotekanauki.pl/articles/47763.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
Rhithropanopeus harrisii
stomach content
Baltic Sea
Crustacea
brackish water
coastal water
non-native species
Decapoda
feeding ecology
American crab
Opis:
The feeding ecology of the American crab Rhithropanopeus harrisii Gould, 1841 from brackish waters of the Baltic Sea was studied by analyses of the stomach repletion index (SRI) and stomach content with regard to sex, size and habitat (Dead Vistula River and the Gulf of Gdańsk). Neither the sex nor the size of an individual crab had a significant (P>0.05) influence on the SRI or on the diversity of food items found in the stomachs of R. harrisii. But the type of food consumed was significantly (P<0.05) dependent on the locality inhabited: the greater the biodiversity of the habitat, the richer the dietary composition. In Baltic coastal waters this species feeds on detritus, and also on animal and plant matter. Remains of Chlorophyta, Amphipoda, Ostracoda, Polychaeta, Gastropoda and Bivalvia were found in the stomachs of the specimens analysed.
Źródło:
Oceanologia; 2009, 51, 3; 361-375
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gonad maturity in female Chinese mitten crab Eriocheir sinensis from the Southern Baltic Sea – the first description of ovigerous females and the embryo developmental stage
Autorzy:
Wojcik, D.
Normant, M.
Powiązania:
https://bibliotekanauki.pl/articles/47779.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
gonad maturity
Chinese mitten crab
Eriocheir sinensis
female
non-native species
embryo
development stage
Baltic Sea
Źródło:
Oceanologia; 2014, 56, 4
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of Chinese mitten crab Eriocheir sinensis on blue mussel Mytilus edulis trossulus – laboratory studies of claw strength, handling behavior, consumption rate, and size selective predation
Autorzy:
Wojcik, D.
Normant, M.
Dmochowska, B.
Fowler, A.
Powiązania:
https://bibliotekanauki.pl/articles/47901.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Oceanologii PAN
Tematy:
non-indigenous species
Chinese mitten crab
Eriocheir sinensis
blue mussel
Mytilus edulis trossulus
population abundance
coastal water
Baltic water
Źródło:
Oceanologia; 2015, 57, 3
0078-3234
Pojawia się w:
Oceanologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Innovations Under the Concept of ‘Turning Garbage into Gold’ in Fisheries Waste Management
Autorzy:
Yusuf, Muhammad
Powiązania:
https://bibliotekanauki.pl/articles/474928.pdf
Data publikacji:
2013
Wydawca:
Fundacja Upowszechniająca Wiedzę i Naukę Cognitione
Tematy:
new entrepreneurship
innovation and creativity
Indonesia
fisheries waste
crab shell powder
Opis:
This paper discusses the encouragement of creativity and innovation in creating opportunities for entrepreneurship turning useless materials into valuable resources. It is necessary to know the thought process and planning in the entrepreneurship idea to create a new business at this time. One of the brilliant philosophies about entrepreneurs is that they are those who can “turn garbage into gold”. This concept describes the important character of entrepreneurs who foresee business opportunities and have the intelligence to transform trash into cash. This means that they have the necessary ability to create innovation and value-added products for sale. The analyzed case study involves innovation in using fisheries waste specifically derived from crab industries in Indonesia. The study presents empirical perspectives including (1) potential business of crab shell waste (2) technology in innovative use of shell to added value product (3) business analysis and commercialization. Ultimately, we present the concept of a new business by linking theories of entrepreneurial innovation and technology transfer in order to gain environmental balance.
Źródło:
Journal of Entrepreneurship, Management and Innovation; 2013, 9, 4; 101-122
2299-7075
2299-7326
Pojawia się w:
Journal of Entrepreneurship, Management and Innovation
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Isolation and characterization of chitin from shells of the freshwater crab potamon algeriense
Autorzy:
Fadlaoui, Soufiane
El Asri, Ouahid
Mohammed, Lakrat
Sihame, Addou
Omari, Abdelouadoud
Melhaoui, Mohammed
Powiązania:
https://bibliotekanauki.pl/articles/1034352.pdf
Data publikacji:
2019
Wydawca:
Sieć Badawcza Łukasiewicz - Polskie Towarzystwo Chitynowe
Tematy:
Chitin
Potamon algeriense
chitosan
deacetylation
freshwater crab
Opis:
This work presents, for the first time, the extraction and characterization of chitin from the shell of the freshwater crab species Potamon algeriense with a standardized and revised chemical method. Chitin and chitosan were isolated following demineralization, deproteinization, decolouration (raw chitin), and deacetylation (chitosan). After boiling, drying, and grinding, 62.12% of the ground shell was obtained. A yield of 40.92% was obtained after demineralization of ground crab shell, while after the deproteinization process 8.74% was obtained. After decolourization, 8.27% of raw chitin was obtained, and the final amount of chitosan extracted from the crab shells was approximately 5.89%. We also characterized the isolated chitin by determining its physicochemical properties using X-ray powder diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and thermogravimetric analysis (TGA).
Źródło:
Progress on Chemistry and Application of Chitin and its Derivatives; 2019, 24; 23-35
1896-5644
Pojawia się w:
Progress on Chemistry and Application of Chitin and its Derivatives
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Miocene burrows of the Ghost Crab Ocypode and their environmental significance (Mykolaiv Sands, Fore-Carpathian Basin, Ukraine)
Autorzy:
Radwański, A.
Wysocka, A.
Górka, M.
Powiązania:
https://bibliotekanauki.pl/articles/138926.pdf
Data publikacji:
2012
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
baden
krab
miocen środkowy
nora
Ocypode
paleośrodowisk
Paratetydy
sedymentologia
Ukraina
Badenian
burrows
Ghost Crab Ocypode
Middle Miocene
palaeoenvironment
Paratethys
sedimentology
Ukraine
Opis:
The huge lithosome of the Middle Miocene (Early Badenian) Mykolaiv Sands, developed at the external margin of the Fore-Carpathian Basin in western Ukraine, is recognized to represent a shallowing-up sequence. Special attention is paid to burrows of the Ghost Crab Ocypode which are pantropical in present-day littoral habitats. In the Stratyn section, burrows of this type become a crucial tool in the interpretation of basin bathymetry, which starts from distal offshore depths, through the foreshore, to the backshore where the Ocypode burrows record a temporary break in sedimentation. Lithification of the sand layers and the Ocypode burrows subsequently progressed in beachrock mode. The Stratyn section demonstrates that the development of submerged shoals and/or emergent parts, throughout the huge mass of the Mykolaiv Sands, is probably responsible for their great variation in thickness in western Ukraine, which has long proved difficult to explain.
Źródło:
Acta Geologica Polonica; 2012, 62, 2; 217-229
0001-5709
Pojawia się w:
Acta Geologica Polonica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New distributional report of Borboropactus bituberculatus Simon 1884 from Nicobar Islands, India
Autorzy:
Dash, Minakshi
Sivaperuman, C.
Powiązania:
https://bibliotekanauki.pl/articles/1031439.pdf
Data publikacji:
2021
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Andaman and Nicobar Islands
Borboropactus bituberculatus
Crab spider
India
Taxonomy
Thomisidae
Opis:
A female of Borboropactus bituberculatus Simon, 1884 has been reported from Andaman and Nicobar Islands, India for the first time. Diagnostic characters are provided for the species, as well as new photographs or illustrations of the genital organs of the species.
Źródło:
World News of Natural Sciences; 2021, 36; 1-8
2543-5426
Pojawia się w:
World News of Natural Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 31

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