The population of Southern Resident killer whales who live off the waters of the northeastern portion of North America stands at 74 whales after the disappearance and presumed death of a male in the summer.
The organization says that adherence to these rules is of particular importance because of the number of failed pregnancies in the Southern Resident killer whales. This community of whales is found in the waters of the northeastern portion of North America and is made up of three pods, J, K, and L.
The regulations require that boaters stay 300 yards away from whales from the sides and at least 400 yards in front or behind. Research published by the NOAA in January of this year indicated that expectant Southern Resident mothers give up the hunt for food at the sound of approaching vessels. The study, which observed whale feeding patterns for three years, led to the implementation of the 400-yard rule as it demonstrated whales foraging for food was much more easily perturbed than previously believed.
In the summer of last year, another whale in the J-pod successfully reared a whale calf, and researchers hope that these measures will help these three females birth calves of their own.
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