Nonparametric regression modelling of green sea turtle growth rates (southern Great Barrier Reef)

• DOI: 10.3354/meps149023
• Publication Date: 2007-09-05T10:11:12Z
• Authors: C Limpus; M Chaloupka
• Keywords: Sexual maturity

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 149:23-34 (1997) - doi:10.3354/meps149023 Nonparametric regression modelling of green sea turtle growth rates (southern Great Barrier Reef) Limpus C, Chaloupka M Somatic recorded between 1974 and 1991 for turtles Chelonia mydas resident in southern Reef (sGBR) foraging grounds sGBR genetic stock were modelled using nonparametric regression. The sampling design this long-term mark-recapture program was mixed longitudinal included records female male ranging 39 116 cm CCL (curved carapace length). Distinct sex-specific patterns found, adults displayed constant negligible while inter-annual variability immature attributable major oceanographic events evident. Females grew faster than males from ca 62 65 with divergent following distinct juvenile spurts. expected size-specific rate function nonmonotonic, rising recruitment size (>35 CCL) maximum 2.1 yr-1 at 60 before declining approaching sexual maturity 95 100 CCL. nonmonotonic same 2.2 63 females a significantly smaller size, <=95 Assuming post-hatchling pelagic phase 5 yr, mean age each sex estimated >=40 yr numerical integration functions. Expected age-specific functions derived by differentiation showed that spurt occurs around 9 large since (60 CCL, >=14 old) 11 (63 >=16 old). Juvenile spurts, growth, slow rates, immatures many decades are characteristics stock. · Green Full text pdf format PreviousNextExport citation Tweet linkedIn Cited Published Vol. 149. Publication date: April 10, 1997 Print ISSN:0171-8630; Online ISSN:1616-1599 Copyright © Inter-Research.