Abstract
The survivorship and growth rates of juvenile, hatchery rearedPsammechinus miliaris (Gmelin) were observed for seaurchins fed different diets, and maintained at varying stocking densities andlocations (tank or sea-based). In addition survivorship and growth of secondgeneration hatchery stock was also recorded. Somatic growth rates of juvenileurchins (initial test diameter 6.5 mm SD 1.26) were measured over9months. A high lipid, high protein diet supported higher somatic growth ofurchins in this size range. Higher stocking densities (4 individualsl−1 as opposed to 2 individuals l−1)adversely affected growth as did location (sea-based urchins being smaller thantank based) although survivorship in all treatments and in both first andsecondgenerations was exceptionally high. Further research is required to designdietspromoting somatic rather than gonadal growth in urchins below market size.
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 callDisclaimer: 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.
