Memorial University DAI: Sensory basis of the orientation to a home site in the radiated shanny, Ulvaria Subbifurcata (Storer) 1839 (Pisces : Stichaeidae)

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Title	Sensory basis of the orientation to a home site in the radiated shanny, Ulvaria Subbifurcata (Storer) 1839 (Pisces : Stichaeidae)
Author	Goff, Gregory P.
Description	Thesis (M.Sc.) -- Memorial University of Newfoundland, 1977. Biology
Date	1977
Pagination	x, 86 leaves : ill.
Subject	Ulvaria Subbifurcata; Home range (Animal geography);
Degree	M.Sc.
Degree Grantor	Memorial University of Newfoundland. Dept. of Biology
Discipline	Biology
Language	Eng
Notes	Bibliography : leaves 84-86.
Abstract	The roles of olfaction and vision in the homing and orientation to a home site of Ulvaria subbifurcata were investigated. These were examined by studying the home site fidelity and the homing performance of normal, blind, and anosmic fish. The orientation to a home site at a distance of 33m of normal, bilaterally blind, bilaterally anosmic and unilaterally blind and anosmic fish was also studied. The activity pattern of normal and sensory impaired fish was examined in the laboratory. The home site resighting of replaced normal and anosmic fish did not differ significantly while resightings of replaced blind fish were somewhat lower. However resightings in the home site following displacement did not differ for normal and blind fish while there was a significant decrease in the number of anosmic fish resighted. Significantly fewer anosmic fish were able to home following long distance compared to short distance displacements. When normal, anosmic and blind fish were held out of the home sites for 7+ weeks and then displaced, there was a significant decrease in the home site resighting of normal fish. Normal, bilaterally blind and unilaterally blind and anosmic fish were able to orient in the direction of the home site from 33m away. Anosmic fish oriented in a direction significantly different from the home direction. From the orientation and homing experiments olfactory contact with the home site is considered to be the steering mechanism in homing. The home site fidelity and short distance homing of anosmic fish indicated vision may also be involved in recognition of the areas around the home site.
Type	Text
Resource Type	Electronic thesis or dissertation
Format	Image/jpeg; Application/pdf
Source	Paper copy kept in the Centre for Newfoundland Studies, Memorial University Libraries
Local Identifier	76005829
Rights	The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission.
Collection	Electronic Theses and Dissertations
Scanning Status	Completed
PDF File	(72.86 MB) -- http://collections.mun.ca/PDFs/theses/Goff_GregoryP.pdf
CONTENTdm file name	308070.cpd