Izvorni znanstveni članak
https://doi.org/10.17818/NM/2023/SI3
Population structure of the invasive Atlantic blue crab, Callinectes sapidus on the Eastern Adriatic coast (Croatia, Montenegro)
Luka Glamuzina
orcid.org/0000-0002-6486-0099
; University of Dubrovnik, Department of Applied Ecology, Dubrovnik, Croatia
Ana Pešić
orcid.org/0000-0002-8669-6744
; University of Montenegro, Institute of Marine Biology Kotor, Montenegro
Olivera Marković
orcid.org/0000-0002-9228-1748
; University of Montenegro, Institute of Marine Biology Kotor, Montenegro
Jovana Tomanić
; Ministry of Health, Directorate for biomedicine, Belgrade, Serbia
Marijana Pećarević
; University of Dubrovnik, Department of Applied Ecology, Croatia
Tatjana Dobroslavić
; University of Dubrovnik, Department of Applied Ecology, Croatia
Marina Brailo Šćepanović
; University of Dubrovnik, Department of Applied Ecology, Croatia
Alexis Conides
orcid.org/0000-0002-8539-7785
; Hellenic Centre for Marine Research, Anavyssos, Greece
Sanja Grđan
orcid.org/0000-0002-1706-441X
; University of Dubrovnik, Department of Applied Ecology, Dubrovnik, Croatia
Sažetak
The Atlantic blue crab, Callinectes sapidus, is a highly invasive species that poses a significant threat to Mediterranean ecosystems. In the last two decades, it has become established in several marine and estuarine areas of the eastern Adriatic Sea, resulting in a decline in commercial catches and damage to fishing gear. This article reviews the current status of blue crab invasion in Montenegro and Croatia and analyses its abundance and population structure. Overall 619 crabs were sampled (male:female ratio, 1:1.91). Both carapace width and weight differed significantly between males and females, with males having a wider carapace and more weight. There was a significant difference in carapace width and weight among sites. For the total population, the mean male and female carapace width was 130.3 ± 30.8 and 108.8 ± 41.4 mm, respectively. In addition, the mean male and female weight was 187.2 ± 85.6 and 132.5 ± 39.1 g, respectively. Coefficient b between the weight and carapace width of blue crabs was significant at all locations, although it varied between males and females. This work will also document the impacts of the blue crab invasion on local ecosystems and provide comprehensive overview of populations structures and shed light on this important aspect of blue crab ecology.
Ključne riječi
blue crab; Callinectes sapidus; Eastern Adriatic Sea; sex ratio; length-weight relationships
Hrčak ID:
305108
URI
Datum izdavanja:
30.6.2023.
Posjeta: 425 *