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Abstract

The infections of four fish species, Trematomus newnesi, T. bernacchii, Lindbergichthys nudifrons and Harpagifer antarcticus with parasitic worms, in the coastal zone off the Vernadsky Station (Argentine Islands, West Antarctica) are described. Data on infections are compared with previous results from Admiralty Bay at the South Shetland Islands. Indices of infection are for each host-parasite relationship. In total, 16 taxa of parasites were recorded: 6 digeneans, 3 larval cestodes, 4 (adult and cystacanth) acanthocephalans, and 3 (adult and larval) nematodes. Fifteen of them have been previously recorded in Notothenia coriiceps from this area. Hence, the number of parasitic taxa recorded in this region increased from 21 to 22. Either the digenean Macvicaria georgiana or acanthocephalan Corynosoma pseudohamanni were dominants in different hosts. Trematomus bernacchii was the most strongly infected, especially with M. georgiana (prevalence 100%, mean abundance 113.7). The infection parameters of the majority of parasites were lower at the Vernadsky Station than in the Admiralty Bay, especially for host-parasite relations with larval cestodes and nematodes. The presently reported study have confirmed that the southern range of distribution of two acanthocephalans, Aspersentis megarhynchus and Corynosoma hamanni extends south to the area near the Argentine Islands.

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Authors and Affiliations

Zdzisław Laskowski
Krzysztof Zdzitowiecki
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Abstract

The aim of the article is to present the problem of revitalization of marketplaces in the context of the challenges they face in contemporary socio-economic conditions. This issue was developed based on desk research and inquiry conducted on a representative marketplace in Gdańsk Oliwa. They served to formulate guidelines for the implementation project aimed at improving the image and economic condition of traditional marketplaces in Poland. Despite significant importance for the local economy, traditional marketplaces are not able to compete with shopping malls and shopping centers, as a result of which they become unsustainable. The ongoing degradation of marketplace areas reduce their attractiveness and role they play in public spaces network. The authors of the project recognize that the solution to the issue of marginalization of traditional marketplaces is to strengthen their image in both physical and media realms. One of the proposed solutions is institutional support for marketplaces by non-governmental organizations involved in the revitalization and aestheticisation of urban areas.

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Authors and Affiliations

Piotr Czyż
Patrycja Henzel

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