Scientists studied old canned salmon to track changes in parasites in the fish over 42 years and assess the health of Alaska's marine ecosystems. This approach helps to understand long-term trends in the ocean and the impact of environmental factors on food chains.
The study found that the aggressive mating behavior of male eastern mosquitofish affects food chains and ecosystem structure by reducing zooplankton populations and altering the balance of algae. These behavioral traits can significantly impact the functioning of freshwater bodies.
The rapid melting of Greenland's glaciers is causing the loss of rich feeding grounds for ringed seals, forcing them to switch to less nutritious food and search for new habitats. This change affects their physical condition and chances of survival.
Новое исследование показало, что даже единственный коренной вид насекомых Антарктиды уже сталкивается с микропластиком. Учёные обнаружили пластиковые частицы внутри личинок Belgica antarctica, что свидетельствует о проникновении загрязнения даже в самые изолированные экосистемы планеты.