Evaluation of Hatchery and Growout Factors for the Successful Production and Stocking of Juvenile Gulf Coast Walleye PDF Download
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Author: Justin L. Wilkens
Publisher:
ISBN:
Category : Walleye (Fish)
Languages : en
Pages :
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Book Description
Temperature-dependent weight gain of Gulf coast and northern strain walleye Sander vitreus fingerlings was determined by rearing fish in flow-through aquaria at different water temperatures (range 15-32°C). Maximum growth of Gulf coast and northern strain walleye occurred between 20 and 26°C, and weight gain of northern walleye exceeded that of the Gulf coast strain by 1.5 times. An acclimated chronic exposure method to assess upper thermal limits determined that walleye survived 35, 9, and 1 days at 33, 34, and 35°C, respectively. A post pond-rearing feed-training practice (21 d) at a mean density of 6,290 ± 1,247 fish/m3 using formulated feeds was successful (32-85% survival), and walleye continued to consume a formulated diet feed after stocked at densities of 12,250 and 24,700/ha into 0.04 ha earthen ponds. After 125 days, survival in ponds was poor (
Author: Justin L. Wilkens
Publisher:
ISBN:
Category : Walleye (Fish)
Languages : en
Pages :
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Book Description
Temperature-dependent weight gain of Gulf coast and northern strain walleye Sander vitreus fingerlings was determined by rearing fish in flow-through aquaria at different water temperatures (range 15-32°C). Maximum growth of Gulf coast and northern strain walleye occurred between 20 and 26°C, and weight gain of northern walleye exceeded that of the Gulf coast strain by 1.5 times. An acclimated chronic exposure method to assess upper thermal limits determined that walleye survived 35, 9, and 1 days at 33, 34, and 35°C, respectively. A post pond-rearing feed-training practice (21 d) at a mean density of 6,290 ± 1,247 fish/m3 using formulated feeds was successful (32-85% survival), and walleye continued to consume a formulated diet feed after stocked at densities of 12,250 and 24,700/ha into 0.04 ha earthen ponds. After 125 days, survival in ponds was poor (
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Temperature-dependent weight gain of Gulf coast and northern strain walleye Sander vitreus fingerlings was determined by rearing fish in flow-through aquaria at different water temperatures (range 15-32°C). Maximum growth of Gulf coast and northern strain walleye occurred between 20 and 26°C, and weight gain of northern walleye exceeded that of the Gulf coast strain by 1.5 times. An acclimated chronic exposure method to assess upper thermal limits determined that walleye survived 35, 9, and 1 days at 33, 34, and 35°C, respectively. A post pond-rearing feed-training practice (21 d) at a mean density of 6,290 " 1,247 fish/m3 using formulated feeds was successful (32-85% survival), and walleye continued to consume a formulated diet feed after stocked at densities of 12,250 and 24,700/ha into 0.04 ha earthen ponds. After 125 days, survival in ponds was poor (
Author: Jeffrey M. Kampa
Publisher:
ISBN:
Category : Fish stocking
Languages : en
Pages : 16
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Book Description
Author:
Publisher:
ISBN:
Category : Fish stocking
Languages : en
Pages : 230
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Book Description
Author:
Publisher:
ISBN:
Category : Fish stocking
Languages : en
Pages : 42
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Book Description
Author:
Publisher:
ISBN:
Category : Fish stocking
Languages : en
Pages : 42
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Book Description
Author: Thomas D. Mosher
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 5
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Book Description
"Walleye have become an increasingly popular game fish in Kansas since their introduction Into state reservoirs in the mld-1950's. In recent years, a good supply of stockable fish has prompted fisheries managers to introduce walleye into smaller state fishing lakes. This practice intends to make walleye fishing available to a greater number of Kansas anglers, end provides an additional predator to help control panfish number. To date, however, stocking has resulted in limited success in the establishment of self sustaining walleye populations"--Page 1.
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9251316082
Category : Technology & Engineering
Languages : en
Pages : 291
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Book Description
The conservation, sustainable use and development of aquatic genetic resources (AqGR) is critical to the future supply of fish. The State of the World’s Aquatic Genetic Resources for Food and Agriculture is the first ever global assessment of these resources, with the scope of this first Report being limited to cultured AqGR and their wild relatives, within national jurisdiction. The Report draws on 92 reports from FAO member countries and five specially commissioned thematic background studies. The reporting countries are responsible for 96 percent of global aquaculture production. The Report sets the context with a review of the state of world’s aquaculture and fisheries and includes overviews of the uses and exchanges of AqGR, the drivers and trends impacting AqGR and the extent of ex situ and in situ conservation efforts. The Report also investigates the roles of stakeholders in AqGR and the levels of activity in research, education, training and extension, and reviews national policies and the levels of regional and international cooperation on AqGR. Finally, needs and challenges are assessed in the context of the findings from the data collected from the countries. The Report represents a snapshot of the present status of AqGR and forms a valuable technical reference document, particularly where it presents standardized key terminology and concepts.
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9789251058954
Category : Business & Economics
Languages : en
Pages : 670
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Book Description
This publication is presented in two parts.
Author: Food and Agriculture Organization of the United Nations
Publisher: Food & Agriculture Org.
ISBN: 9251306079
Category : Technology & Engineering
Languages : en
Pages : 654
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Book Description
This report indicates that climate change will significantly affect the availability and trade of fish products, especially for those countries most dependent on the sector, and calls for effective adaptation and mitigation actions encompassing food production.
