Article
Ecology
Chloe Schmidt, Gabriel Munoz, Lesley T. Lancaster, Jean-Philippe Lessard, Katharine A. Marske, Katie E. Marshall, Colin J. Garroway
Summary: Global biodiversity is organized into biogeographic regions. Populations near biogeographic boundaries have lower effective population sizes and genetic diversity, and are more genetically differentiated. These patterns are stable and generalizable in their contribution to long-term limits on biodiversity homogenization.
Article
Biochemistry & Molecular Biology
Stuart B. B. Piertney, Marius Wenzel, Alan J. J. Jamieson
Summary: The examination of genetic structure in the deep-ocean hadal zone has revealed significant genetic structure in the superabundant amphipod Hirondellea gigas in the Mariana Trench. The genetic divergence is driven by outlier SNPs associated with latitude and depth, challenging the traditional perspective of a panmictic population in trenches.
Article
Fisheries
Joshua Superio, Ioannis Fakriadis, Costas S. Tsigenopoulos, Stefano Adam Lancerotto, Andrea Villena Rodriguez, Emanuele Vervelakis, Constantinos C. Mylonas
Summary: The study demonstrates the importance of increasing parentage contribution in European sea bass aquaculture and suggests that hormonally-induced synchronization of maturation may have the potential to improve genetic diversity through producing offspring from more diverse families.
AQUACULTURE REPORTS
(2021)
Article
Ecology
Leonard N. Jones, Adam D. Leache, Frank T. Burbrink
Summary: This study investigated the phylogeographic history of the common gartersnake in North America and found inconsistencies in genetic structure patterns, identifying four phylogeographic lineages and supporting Pleistocene refugia in the southeast and western North America. The results suggest a Pliocene origin for the species in central-southeastern North America and highlight the role of major riverine networks in westward expansion events across the Interior Plains. The study also emphasizes the need for further investigation into the degree of separation between inferred lineages before proposing any taxonomic revisions.
JOURNAL OF BIOGEOGRAPHY
(2023)
Article
Environmental Sciences
Daniela Klisarova, Dimitar Gerdzhikov, Nina Nikolova, Martin Gera, Petya Veleva
Summary: During the period 1992-2019, the study found that the rising surface temperature had a significant impact on the abundance and biomass of different size and taxonomic groups of phytoplankton in Varna Bay. The decreasing levels of nutrients also played a role in the changes observed. Overall, temperature showed a leading role in the changes in phytoplankton structure during the study period.
Article
Fisheries
Baohua Duan, Shumei Mu, Yueqiang Guan, Shuqin Li, Yue Yu, Weibiao Liu, Zejian Li, Xindong Ji, Xianjiang Kang
Summary: In this study, the genetic structure and differences of nine P. trituberculatus populations in the coastal waters of China were analyzed using GBS technology. The results showed that the populations had similar and low levels of genetic diversity, with little genetic differentiation between them. Population structure analysis identified three major groups and revealed genetic connectivity and biological mixing among the samples.
Article
Environmental Sciences
Delphine B. H. Chabanne, Simon J. Allen, William Bruce Sherwin, Hugh Finn, Michael Krutzen
Summary: The study conducted on Indo-Pacific bottlenose dolphins in Perth found four behavioral communities with similar genetic structures but small differentiation due to related individuals within communities. The high levels of contemporary migration and related individuals among communities suggest a panmictic genetic population with continuous gene flow. Despite genetic similarity, each social community should be considered a distinct ecological unit for conservation due to exposure to different threats and occurrence in different habitats.
FRONTIERS IN MARINE SCIENCE
(2021)
Article
Environmental Sciences
Daniela Nicoleta Holostenco, Mitica Ciorpac, Sirin Firidin, Oguzhan Eroglu, Devrim Memis, Marian Paraschiv, Stefan Hont, Marian Iani, Katarina Tosic, Elena Taflan, Daniela Porea, Petra Kersten, Ilhan Aydin, Radu Suciu, Joern Gessner, Geta Risnoveanu, Klaus Kohlmann
Summary: The stellate sturgeon has experienced a significant decline in population and distribution in the Black Sea basin. Despite limited knowledge about its genetic structure, understanding it is crucial for conservation and recovery efforts. This study found high genetic diversity and low differentiation between marine and freshwater catches. It also provided evidence of a remnant sturgeon micro-population in rivers of Turkey and Georgia. The lack of genetic assessment in conservation activities highlights the need for urgent actions for the recovery of this critically endangered species.
AQUATIC CONSERVATION-MARINE AND FRESHWATER ECOSYSTEMS
(2022)
Article
Food Science & Technology
Hong Xiao, Jiao Yu, Linlu Song, Mengyue Hu, Hong Guo, Yong Xue, Changhu Xue
Summary: This study investigates the reasons behind the firmness of fish flesh and the easy separation of fish flesh after curing and fermentation. The results suggest that the increase in hardness and chewiness, along with changes in protein and muscle tissue structure, contribute to the firmness and easy separation of fermented sea bass meat. Pressure and curing dehydration play a key role in these changes.
FOOD RESEARCH INTERNATIONAL
(2022)
Article
Multidisciplinary Sciences
Karolina Machova, Pavla Struncova, Jan Calta, Ladislav Tichy, Lubos Vostry
Summary: This study analyzed the pedigree of the European bison population and found that almost 100 years after the rescue measures were taken, the reference population showed high levels of genetic variability and inbreeding. However, there was no significant increase in new inbreeding. The population remained genetically diverse and showed good fitness.
Article
Agriculture, Dairy & Animal Science
Maria Gabriela C. D. Peixoto, Maria Raquel S. Carvalho, Andrea A. Egito, Raphael S. Steinberg, Frank Angelo T. Bruneli, Marco Antonio Machado, Fernanda C. Santos, Izinara C. Rosse, Pablo Augusto S. Fonseca
Summary: The Guzera breed in Brazil has experienced genetic bottlenecks, but efforts by the scientific community and breeders have maintained high genetic diversity. The dual-purpose herds are more uniform, with beef herds preserving greater amounts of genetic diversity among groups, while the dairy herd is genetically distant from others.
Article
Evolutionary Biology
Baohua Chen, Zhixiong Zhou, Yue Shi, Jie Gong, Chengyu Li, Tao Zhou, Yun Li, Dianchang Zhang, Peng Xu
Summary: Considering the importance of thermal adaptation in evolutionary biology and climate-change biology, the genetic structure and adaptive evolution of the spotted sea bass (Lateolabrax maculatus) were investigated. The study revealed significant genetic differentiation among populations and identified genes related to growth, muscle contraction, and vision that are under positive natural selection.
EVOLUTIONARY APPLICATIONS
(2023)
Article
Fisheries
Jon-Ivar Westgaard, Guldborg Sovik, Torild Johansen
Summary: Our study examined the genetic structure of Norway lobster (Nephrops norvegicus) in the Skagerrak-Kattegat and Norwegian Deep regions using DNA markers. We found no genetic structure within this region, but detected a shallow structure between Scotland and Iceland. Female lobsters showed greater genetic differences, indicating sex-biased dispersal. Ocean currents may connect Nephrops populations through larval drift. Despite evidence for one biological population, differences in fishing pressure and regulations support the current two-areas management regime.
ICES JOURNAL OF MARINE SCIENCE
(2023)
Article
Marine & Freshwater Biology
Nicole B. Morgan, Julia Andrews, Amy R. Baco
Summary: The study examines the population genetics and connectivity of H. laauense in the North Pacific. The results show low heterozygosity, moderate genetic structuring among populations, and inconsistent connectivity between locations. These findings suggest a mixed pattern of connectivity, likely influenced by the patchy distributions of the corals.
Article
Ecology
Murat Dagtekin, Caner Enver Ozyurt
Summary: Chamelea gallina plays a significant role in Turkey and the Black Sea fisheries. This study evaluates the management structure and socio-economic situation of the Chamelea gallina fisheries. The findings reveal that vessel owners, with an average professional experience of 24.3 years, have a family background in fisheries. The study also highlights the financial aspects, showing the average annual profit and net profit per boat.
REGIONAL STUDIES IN MARINE SCIENCE
(2023)