Aquatic macrophytes in the Lake Shkodra - River Buna wetlands complex

EnThe Lake Shkodra -River Buna wetlands complex is rich in aquatic flora.145 macrophytes have been found.Of these,12 species are stoneworts (Charophyceae),while the others are vascular plants.Four basic formations of plant assemblage are described. Nineteen taxa of aquatic and other hydrophilous macrophytes found in this area which are rare or threatened within Albania are enumerated.Some of these species,i.e.Trapa natans,Nymphoides peltata, Sagittaria sagittifolia,Hydrocotyle vulgaris, Hydrocharis morsus-ranae,Baldellia ranunculoides and Marsilea quadrifoliaare found only in 2 or 3 localities in Albania. Spirodella polyrhiza and Caldesia parnassifolia,are found only in Lake Shkodra.Comments on some of the taxa are given

TRADING-OF FRESHWATER BIODIVERSITY AND HYDROPOWER IN A UNIQUE BALKAN HOTSPOT (VJOSA RIVER WATERSHED, ALBANIA)

Inland waters and freshwater biodiversity in Albania constitute a valuable natural resource, in economic, cultural, aesthetic, scientific and educational terms. Amongst them Vjosa River watershed represents a unique feature, while its conservation and management are critical to the interests of local population, national and regional one. This review explores the special features of Vjosa River as one of the last living wild rivers in Europe. Along more than 230 kilometers in Albania it is untamed and free flowing, characterized by beautiful canyons, braided river sections and meandering stretches. Together with its tributaries, the Vjosa River creates a dynamic near-natural ecosystem, a true regional natural heritage. However, eight dams are foreseen along its course in Albania. These dam projects would destroy the unique river system. The river itself, from delta to upland flows, is migration corridor for European eel (Anguilla anguilla Linnaeus, 1758) and many other marine species

Effects of Natural and Anthropogenic Stressors on Fucalean Brown Seaweeds Across Different Spatial Scales in the Mediterranean Sea

Este artículo contiene 14 páginas, 8 figuras, 3 tablas.Algal habitat-forming forests composed of fucalean brown seaweeds (Cystoseira, Ericaria, and Gongolaria) have severely declined along the Mediterranean coasts, endangering the maintenance of essential ecosystem services. Numerous factors determine the loss of these assemblages and operate at different spatial scales, which must be identified to plan conservation and restoration actions. To explore the critical stressors (natural and anthropogenic) that may cause habitat degradation, we investigated (a) the patterns of variability of fucalean forests in percentage cover (abundance) at three spatial scales (location, forest, transect) by visual estimates and or photographic sampling to identify relevant spatial scales of variation, (b) the correlation between semi-quantitative anthropogenic stressors, individually or cumulatively (MA-LUSI index), including natural stressors (confinement, sea urchin grazing), and percentage cover of functional groups (perennial, semi-perennial) at forest spatial scale. The results showed that impacts from mariculture and urbanization seem to be the main stressors affecting habitat-forming species. In particular, while mariculture, urbanization, and cumulative anthropogenic stress negatively correlated with the percentage cover of perennial fucalean species, the same stressors were positively correlated with the percentage cover of the semi-perennial Cystoseira compressa and C. compressa subsp. pustulata. Our results indicate that human impacts can determine spatial patterns in these fragmented and heterogeneous marine habitats, thus stressing the need of carefully considering scale-dependent ecological processes to support conservation and restoration.This study was supported by the European Union’s EASME (Executive Agency for Small and Medium Enterprise) and EMFF (European Maritime and Fisheries fund) as part of the project AFRIMED, “Algal Forest Restoration in the Mediterranean Sea” (under grant agreement no. 789059), http:// afrimed-project.eu/.Peer reviewe

Aquatic macrophytes in the Lake Shkodra - River Buna wetlands complex

EnThe Lake Shkodra -River Buna wetlands complex is rich in aquatic flora.145 macrophytes have been found.Of these,12 species are stoneworts (Charophyceae),while the others are vascular plants.Four basic formations of plant assemblage are described. Nineteen taxa of aquatic and other hydrophilous macrophytes found in this area which are rare or threatened within Albania are enumerated.Some of these species,i.e.Trapa natans,Nymphoides peltata, Sagittaria sagittifolia,Hydrocotyle vulgaris, Hydrocharis morsus-ranae,Baldellia ranunculoides and Marsilea quadrifoliaare found only in 2 or 3 localities in Albania. Spirodella polyrhiza and Caldesia parnassifolia,are found only in Lake Shkodra.Comments on some of the taxa are given

The first record of Riella macrocarpa (Sphaerocarpales, Marchantiophyta) in Albania

Riella macrocarpa was described as R. helicophylla var. macrocarpa by Allorge in 1929. Later, this variety has not been used further and has not been treated correctly in the checklists. The species was separated and raised to the species rank by Segarra-Moragues et al. in 2022. Riella macrocarpa is known mainly in the western part of the Mediterranean Basin. The only record from the eastern part is from Cyprus. In the Balkan Peninsula only Riella notarisii has been reported so far from Croatia and Greece. Riella macrocarpa was found in Albania (Narta area), which means an extension of the distribution of this species to the eastern Mediterranean region. Its occurrence details in the Narta area and some notes on habitats are presented in this paper

Response of rocky shore communities to anthropogenic pressures in Albania (Mediterranean Sea): ecological status assessment through the CARLIT method

This work was funded by theFrench CoastalProtectionAgency (Conservatoire de l'Espace Littoral et des Rivages Lacustres ; in short: Conservatoire du Littoral) within the framework of the Mediterranean Small Islands Initiative PIM. Thanks are due to Michael Paul, an English native speaker, for proof-reading the English and to an anonymous reviewer for valuable comments and suggestions.International audienceThe CARLIT methodology is an Ecological Quality Ratio (EQR) widely used in the Mediterranean Sea to assess the ecological status of coastal water bodies, within the framework of the European Water Directive (European Union, EU) of 2000. It is based upon the exhaustive mapping of a set of mid-littoral and shallow infralittoral species and communities. This methodology was applied, for the first time in a non-EU country, Albania, three years after the establishment of a Marine Protected Area (MPA). The observed range of ecological status was wide (‘high’ through ‘bad’) and was overall among the lowest assessed to date in the Mediterranean Sea. The bioconstructions (algal rims) edified in the lower mid-littoral zone by the calcified rhodobiont Lithophyllum byssoides were in poor condition and sometimes even dead, possibly in relation with the pollution and the on-going global sea-level rise. In addition, Cystoseira amentacea, a brown alga whose weight in the index is high, could be less sensitive to pollution than previously expected. The occurrence of extensive sea-urchin barren-grounds, though not taken into consideration by the CARLIT index, confirmed the poor condition of large sectors of the study area. Overall, the assessed ecological status could prove to be overestimated by the CARLIT methodology and some methodological improvements should therefore be considered

TRADING-OF FRESHWATER BIODIVERSITY AND HYDROPOWER IN A UNIQUE BALKAN HOTSPOT (VJOSA RIVER WATERSHED, ALBANIA)

Inland waters and freshwater biodiversity in Albania constitute a valuable natural resource, in economic, cultural, aesthetic, scientific and educational terms. Amongst them Vjosa River watershed represents a unique feature, while its conservation and management are critical to the interests of local population, national and regional one. This review explores the special features of Vjosa River as one of the last living wild rivers in Europe. Along more than 230 kilometers in Albania it is untamed and free flowing, characterized by beautiful canyons, braided river sections and meandering stretches. Together with its tributaries, the Vjosa River creates a dynamic near-natural ecosystem, a true regional natural heritage. However, eight dams are foreseen along its course in Albania. These dam projects would destroy the unique river system. The river itself, from delta to upland flows, is migration corridor for European eel (Anguilla anguilla Linnaeus, 1758) and many other marine species

Adriatic \u2018opisthobranchs\u2019 (Gastropoda, Heterobranchia): shedding light on biodiversity issues.

We herein review the Adriatic opisthobranch fauna, provide an updated checklist of 223 species and assess their distribution at regional and country levels. New Adriatic records are provided for 67 opisthobranch taxa, adding three new records for the Italian coastline, five new records for Albania, eight for Croatia and 15 for Montenegro. The presence of Hermaea bifida (Montagu, 1815), Hermaea variopicta (Costa A., 1869) and Facelina annulicornis (Chamisso & Eysenhardt, 1821) is reported for the first time from anywhere in the Adriatic Sea. Including the new findings, our inventory includes 28 species from Albania, 163 from Croatia, 178 from the Italian coastline of the Adriatic, 41 from Montenegro and 74 from Slovenia. No records were available from Bosnia and Hercegovina. Ninety species (40.4%) are widespread, and were recorded from all three main divisions (Northern, Western and Eastern Adriatic), whilst 79 species (35.4%) were reported from only one of them. At sub-division levels, the Albanian inventory is the most dissimilar to the other country/regional lists, presumably because of the lack of targeted field surveys. The highest similarity is observed amongst the Western Adriatic, Croatia and the Italian Ionian coastline. Seven alien, one possible alien and three cryptogenic opisthobranchs were reliably recorded from the Adriatic Sea. The first Mediterranean records of five species were in the Adriatic Sea, of which four species have not been found elsewhere in the Mediterranean. Shipping and aquaculture are the probable pathways for most of the alien species. A steady rate of one to two alien introductions per decade since the 1970s was evident. The Northern Adriatic coasts are the most affected by alien invasions, probably due to repeated local introductions along with shellfish transfers (oysters, mussels, Manila clams), and heavy maritime transport