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Reproduction of Antarctic Benthic Marine Invertebrates: Tempos, Modes, and Timing
There is little or no evidence for temperature adaptation with respect to reproduction (gametogenesis), development, and growth, and it remains to be determined whether the slow rates of these processes reflect some inherent inability to adapt to low temperatures, or are a response to features of the antarctic marine environment not directly related to low temperature.
DEVELOPMENT, METAMORPHOSIS, AND SEASONAL ABUNDANCE OF EMBRYOS AND LARVAE OF THE ANTARCTIC SEA URCHIN STERECHINUS NEUMAYERI.
- I. Bosch, K. Beauchamp, M. Steele, J. Pearse
- Environmental ScienceThe Biological bulletin
- 1 August 1987
The development to metamorphosis of the shallow-water antarctic sea urchin, Sterechinus neumayeri, is described for the first time and the timing of spawning ensures that feeding larvae are in the plankton during the abbreviated summer peak of phytoplankton abundance in McMurdo Sound.
Developmental types of shallow-water asteroids of McMurdo Sound, Antarctica
The mode of development was ascertained for 14 of the 16 species of sea stars known to occur in shallow waters of McMurdo Sound, Antarctica, and most of the species surveyed had pelagic larvae, which contradicts inferences of unusual selection for benthic development in the Antarctic.
Population structure and energetics of the shallow-water antarctic sea star Odontaster validus in contrasting habitats
Differences noted in size, coloration, nutrition, and reproductive effort may be the result of long-term integration of local levels of primary production in localized habitats around the continental shelf of Antarctica.
Limited effects of Antarctic ozone depletion on sea urchin development
Exposure to increased UVB during recent Antarctic ozone-depletion cycles probably has only a small degree of impact relative to the magnitude of other solar effects on the developmental success of Sterechinus embryos, or compared to spawning seasons before ozone depletion.
Asexual reproduction by oceanic planktotrophic echinoderm larvae
A novel mode of cloning by fission in planktotrophic bipinnaria larvae of the sea star Luidia sp.
Contrasting Modes of Reproduction in Two Antarctic Asteroids of the Genus Porania, With a Description of Unusual Feeding and Non-feeding Larval Types
- I. Bosch
- 1 August 1989
Reproduction and development were markedly different in two morphologically similar asteroids of the genus Porania that occur in shallow waters of McMurdo Sound, Antarctica. Adults of the recognized…
Bacterial communities of oceanic sea star (Asteroidea: Echinodermata) larvae
The association of photosynthetic bacteria with cloning larvae allows for future assessments of whether the bacteria supplement the nutrition of the larvae during extended periods of development and clonal reproduction in open ocean regions where phytoplankton food for the larvae may be in limited supply.
Symbiosis between bacteria and oceanic clonal sea star larvae in the western North Atlantic Ocean
- I. Bosch
- Environmental Science
- 1 November 1992
The incidence of symbiosis was higher in actively cloning larvae than in non-cloning larvae, and this is the first documentation of a symbiosis in field populations of echinoderm larvae.