Monitoring Plan for Nine Distinct Population Segments of the Humpback Whale (Megaptera novaeangliae)
Plan for monitoring the nine Distinct Population Segments (DPSs) of the humpback whale that were not listed as threatened or endangered under the Endangered Species Act (ESA) when the status of the humpback whale was revised.
This Monitoring Plan has three primary goals:
1. Monitor each DPS to detect changes in trends in production of calves and adult/juvenile abundance and population growth rates, and distinguish if changes are a threat to the DPS or a signal that the DPS is approaching or has surpassed the DPS’ carrying capacity;
2. Monitor the DPSs to detect changes in spatial and temporal distribution; and
3. Monitor residual or emerging threats, and identify new threats that could affect the sustainability of the recovery of the humpback whale DPSs