Habitat associations and photo-identification of sea otters in Simpson Bay, Prince William Sound, Alaska

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dc.contributor.advisor Davis , Randall en_US
dc.contributor.committeeMember Packard , Jane en_US
dc.creator Gilkinson , Andrea Karin en_US
dc.date.accessioned 2006 -04 -12T16 :03 :54Z
dc.date.accessioned 2014 -02 -19T19 :24 :42Z
dc.date.available 2006 -04 -12T16 :03 :54Z
dc.date.available 2014 -02 -19T19 :24 :42Z
dc.date.created 2004 -12 en_US
dc.date.issued 2006 -04 -12T16 :03 :54Z
dc.identifier.uri http : / /hdl .handle .net /1969 .1 /3176
dc.description.abstract Habitat associations of sea otters during resting and feeding were investigated in Simpson Bay , Prince William Sound , Alaska during the summer months of 2001 -2003 . Sea otter locations collected during boat surveys were overlaid on bathymetry and sediment maps and water depth , sediment type , distance from shore , and position in the bay (peripheral vs . central ) was determined for each . Logistic regression analysis was used to determine whether sea otter habitat use was non -random according to any of these habitat variables . Water depth was the most significant habitat association for feeding behavior , with the majority of feeding dives occurring in shallow water less than 20m deep . Position in the bay was the most significant habitat association for resting behavior , with more otters resting in the center of the bay . In addition , digital images taken of the sea otters during the boat surveys of 2002 and 2003 were used to examine the potential of using nose scars to photo -identify individual sea otters . Both male and female sea otters bore nose scars . Forty -five percent of all individuals encountered were considered identifiable from nose scars and a total of 114 individuals were identified . This compares favorably with the results of photo -identification studies of other marine mammals , suggesting that photo -identification may be a useful tool for the individual identification of sea otters as well . en_US
dc.format.extent 5373137 bytes
dc.format.medium electronic en_US
dc.format.mimetype application /pdf
dc.language.iso en _US en_US
dc.publisher Texas A &M University en_US
dc.subject sea otters en_US
dc.title Habitat associations and photo -identification of sea otters in Simpson Bay , Prince William Sound , Alaska en_US
dc.type Book en
dc.type.genre Electronic Thesis en_US
dc.type.material text en_US
dc.format.digitalOrigin born digital en_US

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Habitat associations and photo-identification of sea otters in Simpson Bay, Prince William Sound, Alaska. Available electronically from http : / /hdl .handle .net /1969 .1 /3176 .

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