Table 3 Unique individuals per unit effort (IPUE, whales per 1000 km) identified on broad-scale surveys in Southern New England shelf waters. NE = no survey effort.

From: Repatriation of a historical North Atlantic right whale habitat during an era of rapid climate change

 

IPUE

Year

Winter

Spring

Summer

Fall

2013

12.49

0.24

0

0

2014

1.72

3.71

0

0

2015

4.30

3.80

0

NE

2017

5.99

7.49

3.62

0.78

2018

12.17

4.74

2.81

2.6

2019

19.05

14.03

4.26

NE

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