東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Delayed hooking mortality of blue ca...

Schmitt, Joseph.

Linked to FindBook

Google Book

Amazon

博客來

Delayed hooking mortality of blue catfish Ictalurus furcatus caught on juglines in Oklahoma reserviors.

Record Type:	Language materials, printed : Monograph/item
Title/Author:	Delayed hooking mortality of blue catfish Ictalurus furcatus caught on juglines in Oklahoma reserviors./
Author:	Schmitt, Joseph.
Description:	42 p.
Notes:	Source: Masters Abstracts International, Volume: 50-06, page: 3739.
Contained By:	Masters Abstracts International50-06.
Subject:	Agriculture, Fisheries and Aquaculture. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1513368
ISBN:	9781267426598

Delayed hooking mortality of blue catfish Ictalurus furcatus caught on juglines in Oklahoma reserviors.
Schmitt, Joseph.

Delayed hooking mortality of blue catfish Ictalurus furcatus caught on juglines in Oklahoma reserviors. - 42 p.

Source: Masters Abstracts International, Volume: 50-06, page: 3739.

Thesis (M.S.)--Oklahoma State University, 2012.

Growth of blue catfish in Oklahoma reservoirs is typically slow, with only a small percentage of fish reaching preferred size (762 mm). To prevent over harvest of larger fish, the Oklahoma Department of Wildlife Conservation recently implemented a law restricting harvest to one fish per person, per day for preferred-size or larger fish. For this regulation to be effective, released fish must survive to further contribute to the population, but little is known concerning the delayed hooking mortality of blue catfish. We investigated the delayed hooking mortality for blue catfish caught on juglines. Blue catfish (N=559) were caught seasonally from three reservoirs on either 5/0 circle hooks or J-hooks fished for 24 h sets. One experimental fish (captured via jugline) and one control fish (captured via pulsed-DC electrofishing) were then placed in field enclosures and monitored for mortality after 72 h. Mean mortality was low at 8.5%. Mortality increased with water temperature, and, for every 1°C increase in temperature, the fish were 1.1 times more likely to die (odds ratio = 1.1). At temperatures of less than 15° C, mortality decreases to 1.6%. Hook type did not significantly affect mortality, nor did the depth in the water column where the fish was hooked. The odds of dying were 6 times lower for every 100-mm increase in the total length of the fish. Mean mortality for preferred-size fish was negligible at 2.5%; no mortalities were observed memorable and trophy-size fish. These results suggest that the new regulation limiting the harvest of preferred-size fish should be effective, even when fish are harvested with 24-h jug fishing sets.

ISBN: 9781267426598Subjects--Topical Terms:

1020913
Agriculture, Fisheries and Aquaculture.

Delayed hooking mortality of blue catfish Ictalurus furcatus caught on juglines in Oklahoma reserviors.
LDR:02554nam a2200277 4500 001 1964823
005 20141013105124.5
008 150210s2012 ||||||||||||||||| ||eng d
020 $a 9781267426598
035 $a (MiAaPQ)AAI1513368
035 $a AAI1513368
040 $a MiAaPQ $c MiAaPQ
100 1 $a Schmitt, Joseph. $3 2101344
245 1 0 $a Delayed hooking mortality of blue catfish Ictalurus furcatus caught on juglines in Oklahoma reserviors.
300 $a 42 p.
500 $a Source: Masters Abstracts International, Volume: 50-06, page: 3739.
500 $a Adviser: Daniel E. Shoup.
502 $a Thesis (M.S.)--Oklahoma State University, 2012.
520 $a Growth of blue catfish in Oklahoma reservoirs is typically slow, with only a small percentage of fish reaching preferred size (762 mm). To prevent over harvest of larger fish, the Oklahoma Department of Wildlife Conservation recently implemented a law restricting harvest to one fish per person, per day for preferred-size or larger fish. For this regulation to be effective, released fish must survive to further contribute to the population, but little is known concerning the delayed hooking mortality of blue catfish. We investigated the delayed hooking mortality for blue catfish caught on juglines. Blue catfish (N=559) were caught seasonally from three reservoirs on either 5/0 circle hooks or J-hooks fished for 24 h sets. One experimental fish (captured via jugline) and one control fish (captured via pulsed-DC electrofishing) were then placed in field enclosures and monitored for mortality after 72 h. Mean mortality was low at 8.5%. Mortality increased with water temperature, and, for every 1°C increase in temperature, the fish were 1.1 times more likely to die (odds ratio = 1.1). At temperatures of less than 15° C, mortality decreases to 1.6%. Hook type did not significantly affect mortality, nor did the depth in the water column where the fish was hooked. The odds of dying were 6 times lower for every 100-mm increase in the total length of the fish. Mean mortality for preferred-size fish was negligible at 2.5%; no mortalities were observed memorable and trophy-size fish. These results suggest that the new regulation limiting the harvest of preferred-size fish should be effective, even when fish are harvested with 24-h jug fishing sets.
590 $a School code: 0664.
650 4 $a Agriculture, Fisheries and Aquaculture. $3 1020913
650 4 $a Agriculture, Wildlife Management. $3 1670004
690 $a 0792
690 $a 0286
710 2 $a Oklahoma State University. $b Wildlife Ecology. $3 2101345
773 0 $t Masters Abstracts International $g 50-06.
790 $a 0664
791 $a M.S.
792 $a 2012
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=1513368