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Filtering by: Creator Brown, Carroll E. Advisor Schreck, Carl B. Committee Member Weber, Lavern

Influences of environmental acidification on salmonid reproduction

Creator:

Weiner, Gary S.

Abstract:

Reproduction of salmonid fishes in acidic water was studied using the rainbow trout (Salmo gairdneri). Adult trout were exposed to various levels of hydrogen ion (pH levels 4.5, 5.0, 5.5, and control [6.5 to 7.1]) during the final 6 weeks of reproductive maturation. Reduced survival rates of the progeny of...

Resource Type:

Masters Thesis

Full Text:

of brown trout (Salmo trutta) in the Tovdal River of Norway (Leivestad and Muniz 1976). Schofield
Chemoreception in coho salmon (Oncorhynchus kisutch) : aspects of behavior, physiology, and toxicology

Creator:

Rehnberg, Bradley Glenn

Abstract:

Detection of L-serine and D,L-alanine by juvenile coho salmon (Oncorhynchus kisutch) was measured in a two-choice Y-trough. Threshold concentration for olfactory detection of L-serine was 10-8 M for zero-age parr, 1O-7 M for yearling parr, 10-5 M for smolts in late April-early May, and 10-6 M for smolts in June....

Resource Type:

Dissertation

Full Text:

provided facilities and logistical support. My greatest debt is to E. H. B. CONTRIBUTION OF AUTHORS
Physiology of interrenal function in juvenile coho salmon (Oncorhynchus kisutch) and effects of hatchery rearing practices

Creator:

Patino, Reynaldo

Abstract:

Periodic determinations of plasma hormone levels suggested that changes in interrenal activity are unrelated to changes in thyroidal or gonadal activity during development (smoltification) of juvenile coho salmon (Oncorhynchus kisutch). Moreover, in an experiment where fish were reared under various conditions of crowding and water inflow rate, it appeared that...

Resource Type:

Dissertation

Full Text:

(less than 50 pg/tube) cortisol concentrations (Brown et al., 1984). Plasma estradiol was determined