none none 0278-0372 1937-240X Journal of Crustacean Biology Refining age at legal-size estimation in the Newfoundland & Labrador populations of the snow crab Chionoecetes opilio (Fabricius, 1788) (Decapoda: Brachyura: Oregoniidae) Darrell Mullowney Nicole O’Connell Raouf Kilada Rémy Rochette 43 4 ruad067 2023 full_text 10.1093/jcbiol/ruad067 01657836 Fisheries Research Fisheries Research Gastric mill ossicles record chronological age in the Caribbean spiny lobster (Panulirus argus) Emily Hutchinson Thomas R. Matthews Erica Ross Samantha Hagedorn Mark J. Butler 277 107083 107083 2024 full_text 10.1016/j.fishres.2024.107083 01657836 Fisheries Research Fisheries Research Integrating different aging methods to model the dynamics of hard-to-age crab growth: Age at size estimates for the Jonah crab (Cancer borealis) Carl. J. Huntsberger Raouf Kilada Yong Chen Richard A. Wahle 276 107061 107061 2024 full_text 10.1016/j.fishres.2024.107061 FRESHWATER CRAYFISH: Gastric mill age estimates for ringed crayfish <i>Faxonius neglectus neglectus</i> (Faxon) and the influence of temperature on band formation
Issue Cover image

You need to login to your IAA account in order to access jounral PDFs.
Member Login
logo

Freshwater Crayfish 25(1): 59-67 (2020)

PEER REVIEWED    RESEARCH ARTICLE

Download: PDF (1.65 MB)

Gastric mill age estimates for ringed crayfish Faxonius neglectus neglectus (Faxon) and the influence of temperature on band formation

Mouser JB, Glover J and Brewer SK  e-mail link

Published Online: 4/15/2020

Abstract

Counting bands via the gastric mill is a potential direct approach for ageing crayfish; however, the validity of ageing crustaceans using the gastric mill is unknown. Our study objectives were to 1) compare gastric mill age estimates to a traditional aging technique, 2) compare ageing precision among the ossicles, and 3) examine the effects of temperature on gastric mill band formation. From 2017–2018, we collected 681 ringed crayfish Faxonius neglectus neglectus (Faxon) from ten Ozark Highland streams. Our length-frequency analysis reflected seven age classes, whereas gastric mill age estimates indicated individuals were up to 10 yr of age. The length-frequency analysis age estimates showed good congruence (± 1 yr) with age estimates from the gastric mill 78% of the time. The coefficient of variation (CV) of age estimates from gastric mill bands between our readers was 29.7%. Ageing precision was highest when using the zygocardiac ossicles (CV = 12.4%). Gastric mill age estimates for known age-1 crayfish from a thermally stable laboratory were not significantly different from one, whereas age estimates from a thermally varying laboratory were greater than one. Our results indicate molting frequency does not control gastric mill band formation, and temperature plays a role in band formation.

CrossRef Logo

Cited By

0 Citations:

How to Cite

Mouser JB, Glover J and Brewer SK. (2020). Gastric mill age estimates for ringed crayfish Faxonius neglectus neglectus (Faxon) and the influence of temperature on band formation. Freshwater Crayfish 25(1):59-67. doi: 10.5869/fc.2020.v25-1.059

 

 

Author Information

Shannon   Brewer,* Natural Resources Ecology and Management , USGS/OSU, 007 Agriculture Hall, Stillwater , OK, USA74078. E-mail: shannon.brewer@okstate.edu

Joshua  Mouser, NREM, Oklahoma Cooperative Fish and Wildlife Research Unit, 007 Agriculture Hall , Stillwater , Oklahoma, USA74078. E-mail: jbmouse@okstate.edu

Jason   Glover, NREM, Oklahoma Cooperative Fish and Wildlife Research Unit, 007 Agriculture Hall , Stillwater , Oklahoma, USA74078. E-mail: jdglove@okstate.edu

Corresponding Author indicated by an *.

 

Publication History

   Manuscript Submitted: 6/28/2019

   Manuscript Accepted: 3/26/2020

   Published Online: 4/15/2020

   Published in Print: 4/30/2020

 

 

Funding Information

No specific funding statement is available for this article.

 

 



 

 

 

Member Login

Forgot Your Password?

Recover PW

Enter the e-mail address you used to
create your IAA account.
Return to Login
Back to Top