Currently there are four of us doing production aging of survey, commercial, and tag recovery halibut otolith samples. A fifth reader ages sport-caught halibut otoliths from Alaska. The following are some notes/guidelines for aging halibut.
www.iphc.washington.edu/staff/joan/otolith.HTM www.iphc.washington.edu/staff/joan/otolith.HTM
Actual otolith size ... How old is this fish? Click on the otolith where you think each of the annuli (yearly rings) are, then click the submit button. Click the clear button to start over. ... Species: Pacific Ocean perch ; Collected: 7/15/04; Length: 33 cm...
www.afsc.noaa.gov/refm/age/ageinginteractive/pop_easy.h... www.afsc.noaa.gov/refm/age/ageinginteractive/pop_easy.htm
Otolith aging was done with whole otoliths. ... (1991) found that agreement between read-ers was much higher for otolith aging than for scale aging. The greater precision for scales from the; ... Boxrucker, J . 1986 . A comparison of the otolith and scale methods for aging white crappies in Oklaho-ma. North American Journal...
wfs.sdstate.edu/wfsdept/Publications/Willis/155-F%20kru... wfs.sdstate.edu/wfsdept/Publications/Willis/155-F%20kruse_crapp_aging.pdf
WALLEYE POLLOCK OTOLITH AGING: COMPARISON OF THE; TECHNIQUES USED BY TWO AGENCIES by; Kristen M. Munk; Regional Information Report No. 5J01-06; Alaska Department of Fish and Game; Mark, Tag, and Age Lab - Age Determination Unit;
www.cf.adfg.state.ak.us/geninfo/pubs/rir/5j01-06.pdf
A dyeing technique for otolith age reading. J. Conseil Int. l'Explor. Mer 32, pp. .... An improved technique for preparing eel otoliths for aging. ...
linkinghub.elsevier.com/retrieve/pii/S0165783699000296
This makes otolith age reading methods highly subjective since agreement among experts is usually well below 90% (Kimura and Lyons, 1991). ...
linkinghub.elsevier.com/retrieve/pii/S0165783606003857
Alaska. gale \inrilar age estimates. r\ge estiJnater from whole otoliths rlere less variable. particularly forolder age groups. ...
research.wsulibs.wsu.edu:8080/dspace/bitstream/2376/124... research.wsulibs.wsu.edu:8080/dspace/bitstream/2376/1243/1/v71%20p224%20Gettel%20et%20al.PDF
Other pleiotropic effects in lm mice include congenital otolith defects with delayed righting, "tail-spinning," and abnormal swimming. These effects are diagnostic criteria for segregation of lm mice among backcross progeny.
jhered.oxfordjournals.org/cgi/content/abstract/75/6/480
An otolith from each specimen was glued to a microscope slide and lightly sanded and polished until the rings became visible at 400X magnification. Plotting the radii of the otoliths against the fishes' total lengths revealed a ... We are marking otoliths with oxytetracycline hydrochloride and aging known-age fish.
www.sdafs.org/meetings/00sdafs/papers/brown2.htm
Hatch; Code; Photo; Contact; Person; General; Info; Papers/Bibliography; Paper Paper; Paper; NPAFC; HOME; Other; OTO links; Links to; Links to; Otolith; Aging; Thermal; Marking Index; How Find; TM; Sulcus up; Slideshow;
www.npafc.org/new/publications/Documents/PDF%202002/649... www.npafc.org/new/publications/Documents/PDF%202002/649(USA).pdf
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