Gregory, Paul A.. (1977) Tagging mortality experiments on Pacific mackerel, Pneumatophorus japonicus. ,Long Beach, CA. California Department of Fish and Game ,(Marine Resources Technical Report ,40 )
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Abstract
Two experiments were conducted to compare tagging mortality rates when Pacific mackerel are tagged using a traditional method and a modified method. Tagged and control fish in equal numbers were held in tanks on board the R/V ALASKA and observed for mortality. The experiments revealed mortality rates of 24% when the tag passes between the pterygiophores or neural spines and 1.5% when the tag is placed in the lateral musculature. Mortality from handling the fish for tagging was 4%, tank trauma was 2%, and the initial tag loss was 2.5%. (20pp.)
| Item Type: | Monograph or Serial issue | ||||
|---|---|---|---|---|---|
| Title: | Tagging mortality experiments on Pacific mackerel, Pneumatophorus japonicus | ||||
| Personal Creator/Author: |
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| Series Name: | Marine Resources Technical Report | ||||
| Number: | 40 | ||||
| Date: | 1977 | ||||
| Publisher: | California Department of Fish and Game | ||||
| Place of Publication: | Long Beach, CA | ||||
| Issuing Agency: | California Department of Fish and Game | ||||
| Uncontrolled Keywords: | Tagging; Pacific mackerel; Pneumatophorus japonicus; R/V Alaska | ||||
| Subjects: | Fisheries Biology | ||||
| ID Code: | 709 | ||||
| Deposited By: | Joan Parker | ||||
| Deposited On: | 23 Feb 2008 15:00 | ||||
| Last Modified: | 16 Apr 2009 12:10 |
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