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However, in 2019, saline bottom water body with a maximum salinity over 20 was detected in the Fehmarn Belt in early February; weak barotropic inflows occurred in the Baltic Sea in March and April, also bringing saline waters from the North Sea ([19]). Keywords: Crossaster papposus; Fehmarn Belt; protected species; monitoring data; underwater imaging approach EN Crossaster papposus Fehmarn Belt protected species monitoring data underwater imaging approach 143 148 6 07/18/22 20220601 NES 220601 GLOSSARY IOW - Leibniz Institute for Baltic Sea Research Warnemünde MPA - Marine Protected Area 1. Furthermore, I C. squamatus i has never been recorded in the German parts of the North Sea or the Baltic Sea and results of several marine surveillance programs (MAREANO, BIOICE, BIOFAR) indicate that I C. squamatus i occurs at the shelf break in colder waters at a depth of 100 to 1600 m ([18]; [21]). The common sun star I C. papposus i was found in both cases at the Natura 2000 site "Fehmarn Belt" (EU-Code: DE 1332-301) in the south-western Baltic Sea (54°34.41934'N; 10°50.06339'E and 54°35.48544'N; 10°54.82932'E; Fig. [Extracted from the article]

The choice of suitable biodiversity assessment methods for practical purposes in city planning and decision-making is still a challenging problem. Despite the availability of a wide variety of methods for almost all dimensions of diversity (mainly species and habitat diversity, including spatial aspects), few of them have entered the practical ‘daily’ work. In the example of in-depth examinations in German and Czech cities (e.g., Dresden and Liberec), it was found that the most frequently applied analyses are those of protected species and habitats in urban nature conservation in general, and particularly in city development planning to derive avoidance, protection and compensation measures. Preference analyses (questionnaires, structured interviews) are becoming increasingly popular. Economic calculations of habitat values and the valuation of ecosystem services are still in their infancy. We will present methods that are presently being applied or could be included in a practical methodological toolkit to analyse and valuate biodiversity in urban nature conservation, city planning and decision-making.

In the Baltic Sea Basin, the river lamprey, Lampetra fluviatilis (L.), is still important to commercial fishing; however, the species is on the decline, especially in the southern part of the catchment area. At present, the river lamprey is protected by European law that requires monitoring its stocks. This article describes a convenient trap for catching adult river lamprey in streams. The gear is a small fish-pot or hoop-net with two chambers. Operating the trap is very simple, and tests indicated its usefulness for monitoring ascending river lamprey. Thus, this trap design is recommended as a standard tool for use in the future, especially since there is a lack of commercial fishery data. [ABSTRACT FROM AUTHOR]

According to the Global Strategy for Plant Conservation, 75% of endangered species should be preserved in ex situ collections till 2020. The genus Liparis has a lot of recognised taxons, but only one species, Liparis loeselii (L.) Rich., grows in Europe. L. loeselii is a rare and endangered orchid species occurring in Europe. In Latvia L. loeselii is classified as the third category of endangered and protected species. To develop the best conservation strategy, the knowledge concerning the genetic differences of protected plants in a particular area is crucial. For this purpose, the genetic diversity of L. loeselii populations from different Latvian habitats was tested. The inter-retrotransposon amplified polymorphism method (iPBS) was used for population genetic diversity evolution. In total, 54 accessions from nine habitats were collected and analysed. L. loeselii leaves have a high content of phenols that reduce the quality of extracted DNA. It was found that the percentage of polymorph loci varied among the populations of L. loeselii growing in different habitats; some of the populations were genetically homogeneous. The genetic diversity levels of L. loeselii populations are related with the population age and the growing conditions. [ABSTRACT FROM AUTHOR]

Research on a critically endangered and protected population of Trapa natans was carried out during growing season in 2016 at the site located on the Obnica channel within the region of Międzyodrze. It is a location that is close to the one indicated in historical sources by Winkelmann over 120 years ago. The post-war research did not confirm presence of this species within the region of Międzyodrze despite favourable biological conditions. The sites were declared relict and documented only in stratigraphy of peat deposits, detritus gyttja and bottom mineral sediments. Recently, an assessment of the population and habitat status were carried out. The appropriate indicators of the species status were examined according to the methodology of Chief Inspectorate of Environmental Protection. The floristic composition of Trapetum natantis association patches found within the researched site were analysed, reed bed associations belonging to the class of Phragmitetea and plant communities of pleustophytes, nymphaeids and elodeids belonging to the class Potametea and Lemnetea were recognised in the contact zone. On the basis of the collected data, particular attention was paid to the relevance of Trapa natans monitoringat the site located on the Obnica channel within the Międzyodrze region due to its indicative character. The conservation status of the population could be influenced by the change of water trophy within Międzyodrze channels caused by different forms of anthropopressure, including commercial use of this water body, hydromeliorative works, changes that are due to the progressive succession of water plants and reeds, which slow down the water flow rate within the area of Międzyodrze, favour accumulation of organic matter and increase of water trophy as well as fluctuations of surface water thermal activity caused by changing weather conditions. [ABSTRACT FROM AUTHOR]

The research was performed in the city parks of Želiezovce and Levice which are situated in the dry and warm climatic region of the south-western part of Slovakia. Inventory of woody plants was done in period of May–September 2011. In the city park Želiezovce were found totally 98 woody species, of which 80% were broadleaves and 20% were coniferous species. The proportion of indigenous species reached 45%, in the case of introduced species it was 55%. In the city park Levice were found totally 111 woody species, of which 78% were broadleaves and 22% were coniferous species. The proportion of indigenous species reached 41%, in the case of introduced species it was 59%. In both city parks dominate the introduced species together with broadleaves species. There are presented also the selected growth parameters of significant woody species individuals. The two protected woody species were found – Quercus pedunculiflora K. Koch in the city park Levice and Taxodium distichum (L.) Rich in the city park Želiezovce. [ABSTRACT FROM AUTHOR]