Colour polymorphism and genetic variation in Idotea baltica populations from the Adriatic Sea and Baltic Sea

Genetica ◽  
1982 ◽  
Vol 59 (3) ◽  
pp. 177-190 ◽  
Author(s):  
H.-P. Buinheim ◽  
G. Faya
2000 ◽  
Vol 36 (5) ◽  
pp. 947-950 ◽  
Author(s):  
Gary L. A. Barker ◽  
Allan Konopka ◽  
Barbara A. Handley ◽  
Paul K. Hayes

Hydrobiologia ◽  
2004 ◽  
Vol 514 (1-3) ◽  
pp. 79-85 ◽  
Author(s):  
Helen Orav-Kotta ◽  
Jonne Kotta

2021 ◽  
Vol 664 ◽  
pp. 103-116
Author(s):  
L Martínez-García ◽  
B Hansson ◽  
J Hollander

Seagrass meadows are one of the most important habitats in coastal regions since they constitute a multifunctional ecosystem providing high productivity and biodiversity. They play a key role in carbon sequestration capacity, mitigation against coastal erosion and as nursery grounds for many marine fish and invertebrates. However, despite these ecosystem functions and services, seagrass meadows are a threatened ecosystem worldwide. In the Baltic Sea, seagrass meadows have declined rapidly, mainly because of eutrophication, anthropogenic activities and climate change. This decline has the potential to erode the genetic variation and genetic structure of the species. In this study, we assessed how genetic variation and genetic differentiation vary among Zostera marina meadows and with a number of environmental characteristics in the county of Scania in southern Sweden. A total of 205 individuals sampled at 12 locations were analysed with 10 polymorphic microsatellite loci. Results showed that in spite of anthropogenic impacts and climate change pressures, locations of Z. marina possessed high genetic variation and weak genetic differentiation, with 3 major genetic clusters. Long-distance dispersal and/or stepping-stone dispersal was found among locations, with higher migration rates within the west coast. Organic matter, salinity and maximum depth appeared to be factors most strongly associated with the genetic structure and morphological variation of Z. marina. These findings contribute significantly in the identification of potential donor sites and the viability of impacted areas to recover from natural recruitment, for the development of effective transplantation measures of Z. marina in the southern Baltic Sea and temperate regions elsewhere.


2021 ◽  
Vol 338 ◽  
pp. 01007
Author(s):  
Anna Dzioba ◽  
Łukasz Muślewski ◽  
Jan Gutsche ◽  
Dragutin Lisjak ◽  
Michał Sójka

The Three Seas Initiative, which gathers 12 European countries located from the Baltic Sea, the Adriatic Sea to the Black Sea, is both an opportunity and a challenge for the countries of Central and Eastern Europe. The concept has primarily a regional dimension, while its global impact is appreciated and supported by, among others, Scandinavian countries and the U.S. government. While the potential for economic development within the scope this initiative is high, in order to develop it, there is a need to modernize the transporting, energetic and digital infrastructure necessary for the implementation of logistic processes. It is also necessary to change legal regulations. The article describes the international economic and political initiative gathering selected countries in the Three Seas area and characterizes the purposefulness of the application of European Modular Systems. On the basis of previously selected features influencing the increase of economic efficiency and appropriately selected weights, a comparative analysis of selected cargo means was conducted. The Bellinger’s method was applied in order to conduct the comparative analysis. Based on the analysis of the obtained research results, the benefits of using sets with increased loading capacity on a selected route between the ports of the Baltic Sea and the Adriatic Sea were demonstrated.


Sign in / Sign up

Export Citation Format

Share Document