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Filtering by: Committee Member Larson, Robert E. Creator Smith, John Robert

The relationship between environmental lighting and hydroxyindole-o-methyltransferase activity in the pineal gland of steelhead trout (Salmo gairdneri)

Creator:

Smith, John Robert

Abstract:

Pineal hydroxyindole-0-methyltransferase (HIOMT) activity was monitored over a 24 h period under three different photoperiods, 16L:8D, 8L: 16D, and 12 L:12D. It was observed that in all three groups of fish HIOMT activity was high' during the dark portion of the photoperiod in comparison to activity during the light portion....

Resource Type:

Dissertation

Full Text:

other members of my committee, Dr. Robert E. Larson, Dr. Gregory Fink, Dr. Ronald Winters, Dr. Harry
Pineal and retinal acetylserotonin methyl-transferase activity in trout

Creator:

Smith, John Robert

Abstract:

Pineal acetylserotonin methyltransferase (ASMT) activities in rainbow trout were reported on by Hafeez and Quay (1971). The validity of certain assay parameters used by these researchers were investigated. With the exception of incubation temperature, all parameters studied proved to be quite valid. Temperature studies indicated a low stability for trout...

Resource Type:

Masters Thesis

Full Text:

, Dr. Robert Larson, Dr. Gregory Fink, Dr. Ronald Winters, Dr. Charles Warren, and Dr. Joseph Nixon