in this study, the concentration of calcium (ca), cobalt (co), chromium (cr), copper (cu), iron (fe), potassium (k), magnesium (mg), manganese (mn), selenium (se) and zinc (zn) as essential metals, were determined in caviar of wild beluga sturgeon caught from the caspian sea in march 2012. potassium (4885.51± 17.81 µg g -1 ) and magnesium (346.61± 6.6 µg g -1 ) had the highest concentration and...

The emergence of viruses such as severe acute respiratory syndrome coronavirus and Nipah virus has underscored the role of animal reservoirs in human disease and the need for reservoir surveillance. Here, we used a panviral DNA microarray to investigate the death of a captive beluga whale in an aquatic park. A highly divergent coronavirus, tentatively named coronavirus SW1, was identified in li...

Given the remote, rugged areas belugas typically inhabit and low rehabilitation success rate with any cetacean, it is rare to have opportunity rescue a live-stranded beluga. The Alaska SeaLife Center cared for two stranded beluga calves different outcomes. In 2012, neonatal male calf (DL1202) following intense storms in Bristol Bay. 2017, helicopter pilot discovered (DL1705) during flight over ...

Changing conditions in the Arctic have had severe consequences for many marine mammals. In this study, we examined blubber cortisol using radioimmunoassay 4 Canadian beluga whale Dephinapterus leucas populations. The endangered Cumberland Sound population higher levels (mean ± SE: 0.65 0.11 ng g -1 ) than populations not at risk: Eastern Beaufort Sea (0.31 0.03 ; p < 0.001), High Arctic-Baff...

Abstract Optimization techniques have contributed to significant strides in complex real-world engineering problems. However, they must overcome several difficulties, such as the balance between capacities for exploitation and exploration avoiding local optimum. An enhanced Artificial Ecosystem (AEO) is proposed incorporating Fitness Distance Balance Model (FDB) handling various design optimiza...