The Effects of Changes in Hydrostatic Pressure on Some Hudson River Biota: Progress Report for 1974

The Effects of Changes in Hydrostatic Pressure on Some Hudson River Biota: Progress Report for 1974

Date: September 1974
Creator: New York University. Medical Center. Institute of Environmental Medicine.
Description: This research report represents the findings on a study conducted over the effect of hydrostatic pressure and hydroelectric generators on various types of fish and other aquatic organisms in the Hudson River.
Contributing Partner: UNT Libraries
Prevention of damage by the seed-corn maggot to potato seed pieces.

Prevention of damage by the seed-corn maggot to potato seed pieces.

Date: February 1940
Creator: Reid, W. J. (William John), 1902-
Description: Uses results from a scientific study to describe how to best protect potato seed pieces from damage by the seed-corn maggot.
Contributing Partner: UNT Libraries Government Documents Department
Protection of turf from damage by Japanese beetle grubs.

Protection of turf from damage by Japanese beetle grubs.

Date: 1950
Creator: Fleming, Walter E. (Walter Ernest), 1899-
Description: Describes the characteristics of the Japanese beetle, the damage it causes, and methods of control.
Contributing Partner: UNT Libraries Government Documents Department
Influence of parental swimming stamina on the cardiac and metabolic performance of larval zebrafish (Danio rerio).

Influence of parental swimming stamina on the cardiac and metabolic performance of larval zebrafish (Danio rerio).

Date: May 2007
Creator: Gore, Matthew R.
Description: Superior swimming stamina in adult fish is presumably passed on to their offspring, but the ontogeny of the appearance of superior stamina and the requisite enhanced cardio-respiratory support for locomotion in larval fishes has not been determined. Is the expression of the suite of parental traits enabling superior swimming stamina in their offspring dependent upon their achieving juvenile/adult morphology, or does it appear earlier in their larvae? To answer this, adults were classified into three groups based on swimming stamina, followed by measurement of length, mass, and width. Larval offspring from the two parental groups -high stamina larvae (HSL) and low stamina larvae (LSL)- were reared at 27°C in aerated water (21% O2). Routine and active heart rate, routine and active mass specific oxygen consumption were recorded through 21dpf, and cost of transport (COT) and factorial aerobic scope were derived from oxygen consumption measurements. Routine heart rate at 2dpf of LSL was 164 ± 1 b·min-1, compared to only 125 ± 2 b·min-1 for HSL. Routine heart rate subsequently peaked at 203 ± 1 b·min-1 at 5dpf in the HSL group, compared to 207 ± 1 b·min-1, at 4dpf in the LSP larvae. Active heart rate at 5 dpf of ...
Contributing Partner: UNT Libraries
The green June beetle larva in tobacco plant beds.

The green June beetle larva in tobacco plant beds.

Date: 1934
Creator: McKinney, K. B. (Kenneth Barbee), 1890-
Description: Describes the damage caused to tobacco plant beds by the larva of the green June beetle. Provides recommendations for its control.
Contributing Partner: UNT Libraries Government Documents Department
American foulbrood of honey bees : how to control it.

American foulbrood of honey bees : how to control it.

Date: September 1954
Creator: Michael, A. S. (Albert Sylvester), 1910-
Description: Discusses American foul brood, a disease caused by a spore that infects bee larvae. Describes how to diagnose and control the disease. Lists the types of bees resistant to the disease.
Contributing Partner: UNT Libraries Government Documents Department
The European corn borer and its control.

The European corn borer and its control.

Date: June 1955
Creator: United States. Entomology Research Branch.
Description: Describes the European corn borer, the regions in which it is found, its seasonal activities, and how to destroy and control borer populations; also lists several insects which are often mistaken for the European corn borer.
Contributing Partner: UNT Libraries Government Documents Department
A Water Quality and Ecological Survey of the Trinity River, Volume 2

A Water Quality and Ecological Survey of the Trinity River, Volume 2

Date: November 1989
Creator: University of North Texas. Institute of Applied Sciences.
Description: This volume of the report represents the technical findings of a study conducted on the ecological makeup of the Trinity River. The data presented includes: ambient toxicity test results and survival rates, United States Geological Survey (USGS) flow data, water quality data, as well as sediment quality data.
Contributing Partner: UNT Institute of Applied Sciences
Spring Food Habits of Corydalus Cornutus L. in the Brazos River, Texas

Spring Food Habits of Corydalus Cornutus L. in the Brazos River, Texas

Date: August 1971
Creator: Friday, Gary P.
Description: The objective of this study was to determine the kinds and numbers of food organisms consumed by Corydalus cornutus, and to investigate its periodicity of feeding during the spring months in the Brazos River, Palo Pinto County, Texas. A total of 468 larvae were collected at two-week intervals from February 29 to May 14, 1971. Larvae were taken at opportunity during three periods of the day, 6am.-12pm., 12pm.-6pm., and 6pm.-12am. A total of 23 different food items was observed in the 121 stomachs containing food. An expedient method of dissection of the digestive tract is included.
Contributing Partner: UNT Libraries