Description of a new species of incubatory oyster from northern New Zealand, with notes on its ecology and reproduction

Modalities of brooding and morphogenesis of larvae in Ostrea puelchana (D'Orbigny) under experimental rearing

“…The duration of the freeliving period of larvae could not be followed here, but the incubation period for laboratory oysters varied between 8 and 16 days and larval growth was observed before their release. Within the genus, Ostrea puelchana is second only to O. aupouria (Dinamani, 1981) in having the smallest larvae at release. Castellanos (1957) observed in Ostrea puelchana from wild populations that the fertilization of ovules was simultaneous for each individual.…”

Phylogenetic Analysis of Southern Hemisphere Flat Oysters Based on Partial Mitochondrial 16S rDNA Gene Sequences

“…However, divergent mitochondrial genotypes were encountered in this sample in addition to that of O. chilensis, which had been previously characterized for this gene fragment (Ó Foighil, unpublished). Careful morphological analysis of the specimens exhibiting the divergent haplotypes revealed them to be O. aupouria which co-occurs with O. chilensis in northern New Zealand (Dinamani, 1981). DNA was extracted from mantle tissue of all specimens except O. conchaphila for which adductor muscle tissue was used.…”

“…Undocumented anthropogenic introduction is the probable source of some oyster biogeographic puzzles (Buroker et al, 1979); however, we can definitively rule this out in the case of O. puelchana and C. permollis which differ markedly in ecological niches and in reproductive modes (Forbes, 1966;Morriconi and Calvo, 1978;Pascual et al, 1989). Sufficient differences in shell sculpture and coloration exist between O. aupouria and T. weberi (Olsson, 1951;Dinamani, 1981) to also cast doubt on the probability of recent human transfer between New Zealand and Florida. Harry (1985) erroneously assumed that O. angasi shares the abbreviated pelagic larval development unique to O. chilensis and offered no legitimate morphological distinction to separate it from O. edulis.…”

“…This fragment was sequenced for all of the taxa synonymized as O. puelchana by Harry (1985), together with one additional New Zealand flat oyster, O. aupouria (Dinamani, 1981), five Northern Hemisphere flat oysters, and 4 outgroup species of Lophinae, the other subfamily of brooding Ostreidae. A secondary goal is to test Chanley and Dinamani's (1980) hypothesis for a pleisiomorphic status for O. chilensis based on larval morphology.…”

Marine Mollusca of oxygen isotope stages of the last 2 million years in New Zealand. Part 2. Biostratigraphically useful and new Pliocene to recent bivalves

“…Of course, an ultimate origin outside both New Zealand and Chile is equally likely, and would not rule out geologically recent rafting from New Zealand to Chile. Torigoe (2004) recognised that "Ostrea" aupouria Dinamani (1981) is a junior synonym of Ostreola virescens (Angas, 1868), a species recorded in eastern Australia from the Gulf of Carpentaria to Port Jackson, New South Wales. Torigoe placed Ostreola Monterosato, 1884 in "incertae sedis", whereas Kirkendale et al (2004), based on gene sequences from New Zealand material of O.…”