Field reports indicate that many White Sturgeon Acipenser transmontanus ingest hooks internally, but the length of time required for hooks to corrode, facilitating passage through their digestive system, is not well understood. Using a buffered acidic solution to simulate stomach conditions, a laboratory experiment was used to estimate the speed at which sturgeon-sized hooks (2.0-mm wire diameter) lost weight and compression strength and to evaluate whether loss of hook weight and compression strength was affected by hook abrasion, such as may occur when baited hooks are bounced along the bottom of the river or when ingested hooks are ground between hard food items in the gizzard of a sturgeon. After 399 d, hooks lost an estimated 34% of their weight and 70% of their compression strength. Abrading the hooks with stones before and throughout the study accelerated weight loss by 34% (after 399 d) compared with nonabraded hooks but did not accelerate the loss of compression strength. Abrasion increased the variability between hooks in weight loss but not in compression strength. Regardless of hook abrasion, the compression strength of some hooks was reduced essentially to 0 N within 1 year of constant exposure to stomach-like acidic conditions.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.