Abstract
Abstract Samples of the hiatellid clam Panopea zelandica were taken from commercial catches near Nelson, New Zealand, where a new fishery developed in 1988. Ages were estimated by counting internal growth rings seen on acetate peels taken from polished and etched sections of the umbo region. Although the estimated ages are not validated, they are based on a validated technique for a similar species in North America, and they provide a preliminary examination of growth and mortality characteristics of this species. Maximum ring count was 34. Growth in shell length appeared rapid to age 10, then slowed. Natural mortality rate appeared to be around 0.20. All individuals examined in a sample taken in March appeared to have spawned recently and were in the redeveloping stages of gametogenesis. Sex ratio was not significantly different from 1:1.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: New Zealand Journal of Marine and Freshwater Research
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
