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Table 6 Mean temperatures (degrees Celsius) experienced by Pacific halibut (Hippoglossus stenolepis) tagged with pop-up archival transmitting tags during 2008 and 2009 in the Aleutian Islands, Eastern Bering Sea (EBS), and a Transition Zone between those ecosystems and the western Gulf of Alaska, that undertook seasonal offshore migrations during the autumn of the year in which they were tagged

From: Dispersal and seasonal movements of Pacific halibut (Hippoglossus stenolepis) in the eastern Bering Sea and Aleutian Islands, as inferred from satellite-transmitting archival tags

Tagging region Midsummer D-4 D-3 D-2 D-1
Western Aleutian 4.8 ± 0.6a 4.5 ± 0.5 4.5 ± 0.5 4.5 ± 0.5 4.5 ± 0.5
Central Aleutian 5.3 ± 0.4a 5.5 ± 0.8 5.2 ± 0.7 5.2 ± 0.7 5.0 ± 0.6
Transition Zone 5.2 ± 0.6b 5.4 ± 0.5 5.2 ± 0.7 5.1 ± 0.6 5.0 ± 0.6
EBS Shelf Edge 2.9 ± 0.4b 3.0 ± 0.6 3.0 ± 0.6 3.0 ± 0.6 3.0 ± 0.6
EBS Shelf Islands 3.3 ± 0.9b 2.6 ± 1.3 2.6 ± 1.3 2.7 ± 1.2 2.8 ± 1.1
  1. “Midsummer” was defined as 28 July through 7 September, when fish were resident on shallow grounds. “D-1” represents mean temperature during the week prior to the fishes’ departure to deep water; D-2 is the week prior to D-1, and so forth. The superscripts after the midsummer means indicate two groups determined to be significantly different (p < 0.05) from one another. In no region were mean temperatures experienced during the 4 weeks prior to departure found to be significantly different from the region’s midsummer temperature