1. Coastal fish fauna in the Cystoseira s.l. algal belts : experiences from the Northern Adriatic SeaLovrenc Lipej, Danijel Ivajnšič, Valentina Pitacco, Domen Trkov, Borut Mavrič, Martina Orlando-Bonaca, 2023, izvirni znanstveni članek Povzetek: Cystoseira s.l. forests are recognised as important habitats which host diverse coastal fish assemblages. Many fish species use such habitats as feeding, breeding, and nursery grounds. Since the coastal fish community depends on the availability of dense macroalgal belts, the decline of these habitats in the Mediterranean Sea also affects the density of coastal fish species. We studied the coastal fish assemblage in Cystoseira s.l. forests in three consecutive years 2019–2021 in the Gulf of Trieste (Adriatic Sea). Data on coastal fish fauna were collected by visual counts conducted by SCUBA diving. Data on algal cover and habitat types were obtained by recording with a video camera. Similarities and differences in the fish community were analysed in terms of habitat and substrate preferences. A total of 34 species were recorded in Cystoseira forests. The results of the present study show that the different algal cover and associated depth gradient have different effects on the fish assemblage in coastal waters, affecting species composition and abundance. For many species, particularly labrids and sea breams, there is a decreasing temporal trend in frequency of occurrence and density. However, fish community trends can be used as a good “proxy” to evaluate the algal belt status. Our results indicate that rapid conservation and restoration actions are needed to stem the decline of Cystoseira s.l. forests.
Ključne besede: Cystoseira s.l. forests, fish assemblage, fish biodiversity, habitat preference, macroalgal belt, Mediterranean Sea
Objavljeno v DiRROS: 12.07.2024; Ogledov: 43; Prenosov: 18
 Celotno besedilo (2,85 MB)
Gradivo ima več datotek! Več... |
2. The coastal ichthyofauna of the Mediterranean coral reef : the case of Mljet National Park (Croatia, southern Adriatic Sea)Lovrenc Lipej, Danijel Ivajnšič, Valentina Pitacco, Borut Mavrič, Domen Trkov, Petar Kružić, 2024, izvirni znanstveni članek Povzetek: The authors studied the structure of the coastal fish assemblage in a temperate coral reef within a marine protected area in order to provide a baseline information on the occurrence and temporal distribution of fish and to highlight the importance of the coral reef to ichthyofauna. The coastal fish assemblage was investigated at two sites in Veliko jezero (Mljet National Park) in the southern Adriatic Sea with a non-destructive SCUBA visual technique in the period from 2013 to 2021. Altogether, 38 fish taxa were recorded on the right bank (coral reef) and 36 species on the left bank. The presence of the coral reef at a depth range between 9 m to 12 m is the main factor differentiating the fish fauna in these two areas, which are otherwise governed by the same environmental factors. At the coral reef a decrease in fish diversity was discovered with a steady regression from 2013 to 2021.
Ključne besede: fish fauna, spatial heterogeneity, Mediterranean coral reef, Cladocora caespitosa, marine protected area, Veliko jezero
Objavljeno v DiRROS: 10.05.2024; Ogledov: 179; Prenosov: 250
Celotno besedilo (2,18 MB)
Gradivo ima več datotek! Več... |
3. Kartiranje habitatnih tipov in popis morske biodiverzitete na območju koprske občine : končno poročiloLovrenc Lipej, Ana Fortič, Leon Lojze Zamuda, Tihomir Makovec, Borut Mavrič, Valentina Pitacco, Milijan Šiško, Domen Trkov, Martina Orlando-Bonaca, Danijel Ivajnšič, 2022, končno poročilo o rezultatih raziskav Ključne besede: morska biologija, biološke lastnosti, skupine vrst, habitatni tipi, morski ekosistemi, morska biodiverziteta, morska biološka raznovrstnost, Občina Koper, poročila
Objavljeno v DiRROS: 24.04.2024; Ogledov: 200; Prenosov: 0 |
