Some whale populations that were severely reduced by commercial whaling have shown strong recovery since becoming protected. while others remain depleted and of high conservation concern. Small populations are particularly susceptible to anthropogenic threats. including acoustic disturbance from industrial activities such as seismic surveys. https://www.roneverhart.com/Toshiba-AL13SX-AL13SXB30EN-300GB-15K-RPM-SAS-12Gb-s-512n-128MB-2-5-Hard-Drive/