نتایج جستجو برای: fish biodiversity
تعداد نتایج: 138899 فیلتر نتایج به سال:
Global biodiversity in freshwater and the oceans is declining at high rates. Reliable tools for assessing and monitoring aquatic biodiversity, especially for rare and secretive species, are important for efficient and timely management. Recent advances in DNA sequencing have provided a new tool for species detection from DNA present in the environment. In this study, we tested whether an enviro...
The fish composition of the three study sites reservoir were studied over a period fifteen months (January, 2020 – March, 2021). A total twenty-eight (28) species emanating from fourteen (14) families obtained. family Cichlidae was dominant with Oreochromis niloticus being most abundant while Malapteruridae least only 0.088% abundance. Biodiversity indices such as richness ranges 2.79-3.28, eve...
Gene and genome duplications are considered to be the main evolutionary mechanisms contributing to the unrivalled biodiversity of bony fish. New studies of vitellogenin yolk proteins, including a report in BMC Evolutionary Biology, reveal that the genes underlying key evolutionary innovations and adaptations have undergone complex patterns of duplication and functional evolution.
fish biodiversity investigation in urmia basin which is a part of irano-anatolian hot spot aimed to determine the state of fish in this endorheic basin. based on the obtained results, freshwater fish species of the urmia basin comprise 29 species in 25 genera, 7 families, 5 orders and one class. the most diverse order is the cypriniformes with 23 species (79.31%) followed by salmoniformes and p...
Lacinutrix venerupis has recently been considered a potential fish pathogen. Here, we report the complete genome sequence of L. venerupis DOK2-8, which possesses several virulence-related genes. This strain may be potentially virulent to other marine organisms, and its genomic information will provide important insights into the biodiversity of the genus Lacinutrix.
The unnecessary death of juvenile and mature individuals of commercial species undermines the health of stocks and jeopardizes future yields, threatening the long term economic sustainability of European fisheries. Moreover the capture of non-commercial species (fish, sea birds, sponges...) severely impacts the marine environment by disrupting the balance of the ecosystem and attacking its biod...
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