Natura Croatica

Irena Grbac, Luka Katušić, Marko Lukić

Professional paper

Irena Grbac Croatian Natural History Museum, Demetrova 1, 10000 Zagreb, Croatia
Luka Katušić Croatian Arachnological Society “Narcis Damin”
Marko Lukić Croatian Biospeleological Society, Demetrova 1, HR–10000 Zagreb, Croatia

Abstract

The paper presents information on the spider collection (Araneae) housed in the Natural History Museum in Zagreb, Croatia. The collection was founded in 1931 and now includes the material assembled in 1884–1964; it consists of 2,461 lots and numbers 8,478 specimens belonging to 464 species, mainly collected by the Croatian arachnologist Narcis Damin. Most specimens are well-preserved in ethanol. This spider collection does not cover all Croatian regions with the majority of samples (67%) originating from coastal regions of east Adriatic. A taxonomic re-examination of the collection has revealed 31 species that are new to the Croatian spider fauna. Spider collecting has been resumed in Croatia recently.

Keywords

Museum Collection, Narcis Damin, Rikardo Gasperini

Danijela Gumhalter

Short communication

Danijela Gumhalter Azuritweg 2, D-70619 Stuttgart, Germany

Abstract

In 2015 a paper describing new findings of micromoth species from the genera Goniodoma and Coleophora from some Balkan countries (Croatia, Montenegro, N. Macedonia and Bulgaria) was published (Richter & Pastorális). Among other findings, 11 moth species were identified as new for the Balkans and 13 moth species as new for Croatia. But three of these species, all from the genus Coleophora, were previously reported for Croatia and thus do not represent new findings, either for the Balkans or for Croatia. The two supposedly newly identified species for the Balkans are Coleophora ahenella (Heinemann, 1877) and Coleophora gallipennella (Hübner, 1796). Both species were previously reported for the fauna of Croatia, so these findings do not represent new findings for the Balkans. Also the supposedly new species for the fauna of Croatia, Coleophora bilineella (Herrich-Schäffer, 1855), was previously reported for Croatia and therefore does not represent a new species for the fauna of Croatia.

Keywords

Review, Microlepidoptera, case bearing moths, Goniodoma, Coleophora, Balkan, Croatia

Christoph Germann, Tamas Nemes

Short communication

Christoph Germann
Tamas Nemes

Abstract

The first records of Polydrusus (Conocetus) crinipes Germann, 2018 from southern Croatia and Albania considerably enlarge the species’ distribution towards the Northwest. The species has been previously confined to Greece and Bulgaria. The habitat at Baćinska lakes, where the species was discovered in Croatia, fits well with its ecological preferences.

Keywords

Croatia, Albania, faunistics, Polydrusus crinipes, new record

Adrián Purkart, Daniel Jablonski, Jana Christophoryová

Short communication

Adrián Purkart Department of Zoology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina B-1, Ilkovičova 6, SK–842 15, Bratislava, Slovakia
Daniel Jablonski Department of Zoology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina B-1, Ilkovičova 6, SK–842 15, Bratislava, Slovakia
Jana Christophoryová Department of Zoology, Faculty of Natural Sciences, Comenius University in Bratislava, Mlynská dolina, Ilkovičova 6, SK-84215 Bratislava, Slovakia

Abstract

The first record of the rare ant Carebara oertzeni Forel, 1886 from Albania is reported. Two workers of C. oertzeni were discovered in the south-eastern part of the country, near the village of Benjë-Novoselë. So far, it is the northernmost known distribution of this very rarely collected species, the sole representative of its genus in Europe, whose previous records all come from Greece and Turkey. In addition, we also found a specimen determined as the Proceratium melinum Roger, 1860 worker ant in the same soil sample.

Keywords

ants, Balkans, Carebara oertzeni, distribution, Formicidae

Mladen Zadravec

Short communication

Peter Geissler, Markus Grabert

Short communication

Peter Geissler Museum Natur und Mensch, Freiburg, Gerberau 32, 79098 Freiburg, Germany
Markus Grabert State Natural History Museum Stuttgart, Rosenstein 1, 70191 Stuttgart, Germany

Abstract

We provide new and supplementary data on the distribution and natural history of reptiles on the island of Cres: Dalmatolacerta oxycephala (range extension of an alien introduced population); Emys orbicularis hellenica (status of the population in the southwestern parts of Cres); Hemidactylus turcicus (first record after 38 years); Trachemys scripta elegans (first record on Cres).

Keywords

Dalmatolacerta oxycephala, Emys orbicularis hellenica, Hemidactylus turcicus, Trachemys scripta elegans, Cres Island, Croatia, new records, natural history

Fabrizio Martini, Claudio Peruzovich

Short communication

Fabrizio Martini V. F. Fortunio 10, Trieste, Italy
Claudio Peruzovich V. Udine 133, Martignacco (UD), Italy

Abstract

We describe and discuss the discovery of Moehringia pentandra from the Osorščica massif on the island of Lošinj. The species, new to the Croatian flora, grows on a calcareous substrate within an artificial Pinus nigra forest along with some small holm oaks (Quercus ilex). The herbaceous layer is characterized by vernal thermophilous therophytes, mainly with euri- or steno-Mediterranean distribution. We also underline the difficulty of distinguishing in the field M. pentandra from Stellaria pallida, whose main diacritical features are also analyzed. A key to the genus Moehringia in Croatia is proposed.

Keywords

Moehringia pentandra, Lošinj Island, ecology, phytocoenology, morphology

- Zairion -, Agnus Alim Hakim, Ali Mashar, Achmad Fahrudin, Bambang Widigdo, Yusli Wardiatno

Original scientific paper

- Zairion - Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Bogor Agricultural University, Kampus IPB Darmaga, Bogor 16680, West Java, Indonesia
Agnus Alim Hakim Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Bogor Agricultural University, Kampus IPB Darmaga, Bogor 16680, West Java, Indonesia
Ali Mashar Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Bogor Agricultural University, Kampus IPB Darmaga, Bogor 16680, West Java, Indonesia
Achmad Fahrudin Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Bogor Agricultural University, Kampus IPB Darmaga, Bogor 16680, West Java, Indonesia
Bambang Widigdo Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, Bogor Agricultural University, Kampus IPB Darmaga, Bogor 16680, West Java, Indonesia
Yusli Wardiatno Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB University (Bogor Agricultural University), Bogor, Indonesia

Abstract

The porcelain crab, Pseudoporcellanella manoliensis Sankarankutty, 1961 was collected in East Lampung, Indonesia, and the species is recorded from Indonesian waters for the first time. Pseudoporcellanella manoliensis was previously known from India, Malaysia, Singapore, Cambodia, and the South China Sea. The present specimens were caught by a fisherman as by-catch of the blue swimming crab (Portunus pelagicus) in April and June 2017. Pseudoporcellanella manoliensis was found clinging to a sea pen (Scytalium sp.) taken along the net. Three males and three ovigerous females each carrying approximately 600 eggs were found. The occurrence of the species in Indonesia enhances the marine crustacean diversity list of tropical Indo-West Pacific waters.

Keywords

Anomura, first record, marine biodiversity, Pseudoporcellanella manoliensis, tropical Pacific waters

Fran Rebrina, Nikola Tvrtković

Original scientific paper

Fran Rebrina University of Zagreb, Faculty of Science, Department of Biology, Rooseveltov trg 6, 10000 Zagreb, Croatia; IUCN/SSC Grasshopper Specialist Group
Nikola Tvrtković Croatian Biospeleological Society, Rooseveltov trg 6, 10000 Zagreb, Croatia

Abstract

During a study conducted in 2018 on Mt Sniježnica,the faunistically understudied southernmost karst mountain in Croatia, altogether 42 orthopteran and three mantid species were recorded at 18 localities at different altitudes. Two Poecilimon taxa new to Croatian fauna were found, one of them an undescribed species from the elegans group. Three bush-cricket species, namely Leptophyes intermedia, Platycleis albopunctata grisea and Pholidoptera fallax, were recorded for the first time in the Dubrovnik region. A curious variability of male cerci length, shape and position was observed within the Pachytrachis gracilis populations in the study area. The presence of several orthopteran species of importance for nature conservation was confirmed on Mt Sniježnica.

Keywords

bush-crickets, Poecilimon, Pachytrachis, grasshoppers, mantids, Eastern Adriatic coast

Vladimir Krpač, Reshat Zeqiri, Mladen Kučinić, Xhezair Abdija, Nexhbedin Beadini, Mirjana Krpač, Christian Darcemont, Michele Lemonnier – Darcemont, Vesna Krsteska, Stanislava Lazarevska, Matjaž Černila

Original scientific paper

Vladimir Krpač Institute of Ecology and Technology, Popova Shapka, Republic of North Macedonia Reshat Zeqiri ; National Institution Macedonian Museum of Natural History, Boulevard Ilinden 86, 1000 Skopje, Republic of North Macedonia
Reshat Zeqiri
Mladen Kučinić University of Zagreb, Faculty of Science, Department of Biology, Rooseveltov trg 6, HR-10000 Zagreb, Croatia
Xhezair Abdija State University of Tetova - Faculty of Natural Sciences and Mathematics Department of Biology, Ilinden Street bb, 1200 Tetovo, Republic of North Macedonia
Nexhbedin Beadini State University of Tetova - Faculty of Natural Sciences and Mathematics Department of Biology, Ilinden Street bb, 1200 Tetovo, Republic of North Macedonia
Mirjana Krpač Entomological Society for the Investigation and Conservation of Biodiversity and Sustainable Development of Natural Ecosystems, Vladimir Komarov Street 20/6, 1000 Skopje, Republic of North Macedonia
Christian Darcemont Groupement d’Études Entomologiques Méditerranée (G.E.E.M.) Hameau de St Donat 240 chemin du Vignaou 83440 Callian, France
Michele Lemonnier – Darcemont Groupement d’Études Entomologiques Méditerranée (G.E.E.M.) Hameau de St Donat 240 chemin du Vignaou 83440 Callian, France
Vesna Krsteska University ”St. Kliment Ohridski” - Bitola, Scientific Tobacco institute - Prilep, Kicevska bb, 7500 Prilep, Republic of North Macedonia
Stanislava Lazarevska Faculty of Agricultural Sciences and Food, Bul. Aleksandar Makedonski, bb 1000 Skopje, Republic of North Macedonia
Matjaž Černila Prirodoslovni muzej Slovenije, Prešernova 20, p.p. 290, SI - 1001 Ljubljana, Slovenija

Abstract

Analysis of literature data, data from entomological collections in the Museum of Natural History (SKO), Nikola Nezlobinski Museum in Struga (NNS), the Scientific Tobacco Institute in Prilep (STP) and the Faculty of Agricultural Sciences and Food in Skopje (FASF) and our research,showed that the family Sphingidae is well investigated in the Republic of North Macedonia, and represented by 25 species, or 62.5% of the European fauna. The subfamily Macroglossinae is represented by 10 genera and 17 species, the subfamily Smerinthinae is represented by 4 genera and 4 species and the subfamily Sphinginae is represented by 4 genera and 4 species. Three species are reported for the first time for the fauna of North Macedonia: Hyles gallii (Rottemburg 1775), Hyles nicaea (de Pruner 1798) and Hyloicus pinastri Linnaeus, 1758.

Keywords

Sphinges, fauna, check list, North Macedonia Krpač, V., Zeqiri, R., Kučinić, M., Abdija, X., Beadini, N., Krpač, M., Darcemont, Ch.,

Luboš Beran

Original scientific paper

Luboš Beran Nature Conservation Agency of the Czech Republic, Regional Office Kokořínsko – Máchův kraj Protected Landscape Area Administration, Česká 149, CZ–276 01 Mělník, Czech Republic

Abstract

Results of a malacological survey of the Mrežnica River are presented. The molluscan assemblages of this river between the boundary of the Eugen Kvarternik military area and the inflow to the Korana River near Karlovac were studied from 2013 to 2018. Altogether 29 aquatic molluscs (19 gastropods, 10 bivalves) were found at 9 sites. Theodoxus danubialis, Esperiana esperi, Microcolpia daudebartii and Holandriana holandrii were dominant at most of the sites. The molluscan assemblages were very similar to assemblages documented during previous research into the Korana River. The populations of the endangered bivalves Unio crassus and Pseudanodonta complanata were recorded. An extensive population of another endangered gastropod Anisus vorticulus was found at one site. Physa acuta is the only non-native species confirmed in the Mrežnica River.

Keywords

Mollusca, Unio crassus, Anisus vorticulus, Mrežnica, faunistic, Croatia

Nataša Turić, Matej Šag, Kristina Kljajić, Denis Deže, Katarina Batrnek, Dragana Bjelovuk

Nataša Turić Department of Biology, Josip Juraj Strossmayer University, Ulica cara Hadrijana 8A, 31000 Osijek, Croatia
Matej Šag Department of Biology, Josip Juraj Strossmayer University of Osijek, Osijek, Croatia
Kristina Kljajić Department of Biology, Josip Juraj Strossmayer University, Ulica cara Hadrijana 8A, 31000 Osijek, Croatia
Denis Deže Department of Biology, Josip Juraj Strossmayer University, Ulica cara Hadrijana 8A, 31000 Osijek, Croatia
Katarina Batrnek Department of Biology, Josip Juraj Strossmayer University, Ulica cara Hadrijana 8A, 31000 Osijek, Croatia
Dragana Bjelovuk Department of Biology, Josip Juraj Strossmayer University, Ulica cara Hadrijana 8A, 31000 Osijek, Croatia

Abstract

A study was carried out in two parks, Perivoj kralja Tomislava and Perivoj kralja Petra Krešimira IV, in the period from June to August 2017. In all, 26 saproxylic beetle species listed in 14 families were identified. From these, three species are listed in the European Red List of Saproxylic beetles, two species as least concern and one as near threatened according to the IUCN. The family Nitidulidae was the most abundant followed by Curculionidae, Elateridae, Carabidae and Tenebrionidae. According to the Sørensen index, a similarity between these two locations was established depending on the beetle fauna present. This research showed the presence of E. ferrugineus in urban parks.

Keywords

abundance, habitat, endangerment, Elater ferrugineus, urban area

Dino Babić, Antun Alegro

Original scientific paper

Dino Babić Division of Botany, Department of Biology, Faculty of Science, University of Zagreb, Marulićev trg 20/II, 10000 Zagreb, Croatia
Antun Alegro Divison of Botany, Department of Biology, Faculty of Science, University of Zagreb, Marulićev trg 20/II, 10000 Zagreb, Croatia

Abstract

The bryophyte flora in the settlement Selina and the surrounding area (western Istria) was surveyed during the vegetation season of 2014. Altogether 66 mosses and 6 liverworts were recorded. Phytogeographically, the most abundant species are of the temperate zonobiome, i.e. circumpolar species, with respect to eastern limit categories. Analysis of bryophyte flora through habitat types shows that the highest species richness occurs by shaded rocks and in crevices, while the lowest richness occurs on arable land and occasionally the flooded banks of ponds. Regarding species composition, habitat types are clustered in four basic groups. Based on Ellenberg’s ecological indicator values for light, moisture, reaction of substrate and amount of nutrients, the differences between bryophyte floras of different habitats are explained using methods of descriptive and multivariate statistics.

Keywords

mosses, liverworts, biogeographical elements, habitats, ecological indicator values

Vedran Šegota, Ivan Gulin, Anja Rimac, Antun Alegro

Original scientific paper

Vedran Šegota ZA and ZAHO, Faculty of Science, University of Zagreb, Marulićev trg 20/II, HR-10000, Zagreb, Croatia
Ivan Gulin Lozovac 7a, 22000 Šibenik, Croatia
Anja Rimac University of Zagreb, Faculty of Science, Department of Biology, Division of Botany, Marulićev trg 20/II, 10000 Zagreb, Croatia
Antun Alegro University of Zagreb, Faculty of Science, Department of Biology, Division of Botany, Marulićev trg 20/II, 10000 Zagreb, Croatia

Abstract

The rare bryophyte species Fissidens fontanus was found within the course of a comprehensive field study of the aquatic flora and vegetation of Lake Visovac (Krka National Park). This is the second record of this species in Croatia after the recent discovery in the Trepča River. The species grows among rich macrophyte vegetation, forming small patches up to 2.5 m in depth. Due to its rareness and plausible threats, we assessed F. fontanus as critically endangered in Croatia.

Keywords

rare moss, critically endangered species, Southeastern Europe

Máté Zsolt Otártics, Vilmos Altbäcker, Kristóf Solymosi, Róbert Mátics, Róbert Romvári, Sandor Farkas

Original scientific paper

Máté Zsolt Otártics Institute of Environmental Sciences and Nature Conservation, Kaposvár University, Guba Sándor út. 40. H-7400 Kaposvár, Hungary
Vilmos Altbäcker Institute of Environmental Sciences and Nature Conservation, Kaposvár University, Guba Sándor út. 40. H-7400 Kaposvár, Hungary
Kristóf Solymosi Institute of Animal Science, Kaposvár University, Guba Sándor út. 40. H-7400 Kaposvár, Hungary
Róbert Mátics Institute of Environmental Sciences and Nature Conservation, Kaposvár University, Guba Sándor út. 40. H-7400 Kaposvár, Hungary
Róbert Romvári Institute of Animal Science, Kaposvár University, Guba Sándor út. 40. H-7400 Kaposvár, Hungary
Sandor Farkas Institute of Environmental Sciences and Nature Conservation, Kaposvár University, Guba Sándor út. 40. H-7400 Kaposvár, Hungary

Abstract

In recent years, H-trap-type insect traps have been used to reduce horsefly densities. We investigated the impact of the factors affecting the efficacy of H-traps. Catching data of 15 H-traps were analyzed. The traps were deployed at an outdoor equestrian paddock (Sántos, Somogy county) from May to July 2018. In twelve weeks, the traps collected 10,556 horsefly specimens, dominated by Tabanus autumnalis and Haematopota italica. In the first experiment we found that the distribution of caught individuals was inhomogeneous among the samples. According to the amount of caught individuals, trap efficacy showed spatial and temporal inhomogeneity. In the second experiment, after the rearrangement of traps, we found that traps placed in open, sunny places in the centerline area caught significantly more horseflies than those in shady border regions. It can be concluded that the positioning of H-traps in sunny areas significantly enhances their tabanid-catching efficacy.

Keywords

Tabanidae, horseflies, collection efficacy, insect trap, livestock

Kristijan Cindrić, Rajko Slapnik

Original scientific paper

Kristijan Cindrić Croatian biospeleological society, Demetrova 1, HR-10000 Zagreb, Croatia
Rajko Slapnik ZOSPEUM, Molluscs, Cave & Karst Biological Consulting, Drnovškova pot 2, 1241 Kamnik, Slovenia

Abstract

Two new subterranean freshwater gastropod species from the superfamily Truncatelloidea were found during a field trip in the cave Rudnica VI located in central Croatia, near the town of Ogulin. They have been described based on their conchological characteristics and therefore only preliminary assigned to Plagigeyeria and Paladilhiopsis genera. These two species represent a new addition to the already unique freshwater fauna of Rudnica VI.

Keywords

cave, spring, hydrology, isolation, stygobiont, shell, Paladilhiopsis, Plagigeyeria, Truncatelloidea

Halil Ibrahimi, Linda Grapci-Kotori, Astrit Bilalli, Albulena Qamili, Robert Schabetsberger

Original scientific paper

Halil Ibrahimi Department of Biology, Faculty of Mathematical and Natural Sciences, University of Prishtina “Hasan Prishtina”, “Eqrem Qabej” p.n., 10 000 Prishtinë, Kosovo
Linda Grapci-Kotori Department of Biology, Faculty of Mathematics and Natural Sciences, University of Prishtina “Hasan Prishtina”, Mother Theresa p.n., 10 000 Prishtinë, Republic of Kosovo
Astrit Bilalli University of Peja “Haxhi Zeka”, Faculty of Agribusiness, Street “UÇK” 30000 Pejë, Republic of Kosovo
Albulena Qamili Department of Biology, Faculty of Mathematical and Natural Sciences, University of Prishtina, “Mother Theresa” p.n., 10 000 Prishtinë, Kosovo
Robert Schabetsberger Department of Cell Biology, Faculty of Natural Sciences, University of Salzburg, Hellbrunnerstraße 34, Raum Nr. E-2.050, Salzburg, Austria

Abstract

Adult caddisflies were collected with entomological nets and ultraviolet light traps during August and September 2018 in Leqinat Lake, Drelaj Lake and five adjacent streams in Bjeshkët e Nemuna in Kosovo. Within the current study we found three first records for the caddisfly fauna of Kosovo: Limnephilus flavospinosus, Limnephilus flavicornis and Oligotricha striata. The genus Oligotricha is reported for the first time from Kosovo. We also found few rare species which have been reported only from few localities in the Balkan Peninsula such as: Plectrocnemia mojkovacensis, Rhyacophila balcanica and Drusus tenellus.

Keywords

aquatic insects, rare species, first records, Balkans, Oligotricha

Toni Koren, Ivona Burić, Gordana Glavan, Rudi Verovnik

Original scientific paper

Toni Koren Association Hyla, Lipovac I 7, 10000 Zagreb, Croatia
Ivona Burić Association Hyla, I. Lipovac 7, 10000 Zagreb, Croatia
Gordana Glavan University of Ljubljana, Biotechnical Faculty, Department of Biology, Jamnikarjeva 101, 1000 Ljubljana, Slovenia
Rudi Verovnik University of Ljubljana, Biotechnical Faculty, Department of Biology, Jamnikarjeva 101, 1000 Ljubljana, Slovenia

Abstract

Mt Kozjak is an elongated mountain ridge situated in central Dalmatia, just above the Riviera of Kaštela near Split. It was well surveyed a century ago by Hermann Stauder who recorded 38 butterfly species. Among these, Papilio alexanor was the most prominent discovery. During our surveys from 2007 to 2018, we recorded 82 butterfly species at 19 localities bringing the total of observed species to 87. We managed to confirm the presence of Papilio alexanor more than hundred years after the first observation in the area. The occurrence of some additional rare and interesting species like Carcharodus orientalis, Pyrgus sidae, Pyrgus serratulae, Parnassius mnemosyne, Euchloe ausonia, Cupido osiris, Polyommatus admetus and Hyponephele lycaon is discussed in more detail. The butterfly fauna of Mt Kozjak is very diverse given its geographic position, low habitat diversity and size. Abandonment of pasturing and subsequent overgrowing of calcareous grasslands is the most important factor causing long term butterfly decline on Mt Kozjak.

Keywords

distribution, diversity, Kaštela, Dalmatia, Papilio alexanor, Cupido osiris

Lucija Kanjer, Maja Mucko, Ana Car, Sunčica Bosak

Original scientific paper

Lucija Kanjer Biology Students Association - BIUS, Rooseveltov trg 6, 10000 Zagreb, Croatia
Maja Mucko Department of Biology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia
Ana Car Institute for Marine and Coastal Research, University of Dubrovnik, Kneza Damjana Jude 12, PO Box 83, 20000 Dubrovnik, Croatia
Sunčica Bosak Department of Biology, Faculty of Science, University of Zagreb, Rooseveltov trg 6, 10000 Zagreb, Croatia

Abstract

This research provides a description of the epiphytic diatom community living on the blades of the marine seagrass Posidonia oceanica in the coastal area of the eastern Adriatic Sea. Samples were collected in May 2017, from a meadow located in Tetevišćica Bay, on the western side of Dugi otok island (43° 58’ 22’’ N; 15° 03’ 36’’ E) at three depths: 10, 15 and 20 m. Each blade sample was divided into three segments along the leaf axis (basal meristemal, middle and apical) to explore the possible community zonation pattern. Twenty-one samples were analyzed by light microscope and the epiphytic diatom community structure was determined. A total of 68 taxa belonging to 30 genera were found: 43 from 10 m depth, 41 from 15 m depth and 39 from 20 m depth. All identified species are commonly recorded from other marine benthic periphytic and epiphytic habitats. The genus Cocconeis was dominant in all samples, which is typical for epiphytic biofouling of P. oceanica leaves. Although no changes in the community structure related to the position on P. oceanica blade were observed, ANOSIM tests (p<0.05) performed on species’ relative abundances confirmed that the diatom communities differed significantly according to their depths. This study contributed to the knowledge on biodiversity associated with Adriatic P. oceanica meadows, which are threatened by human activities and invasive species. Additionally, this research provided important information on the identification of the taxaspecific epiphytic diatom community on seagrasses in the eastern Adriatic Sea.

Keywords

Bacillariophyta, Neptune grass, Mediterranean Sea, Cocconeis, species identification, light microscopy

Natura Croatica, Vol. 28 No.1

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