Reproduction and condition of the scallop Adamussium colbecki (Smith 1902), the sea-urchin Sterechinus neumayeri (Meissner 1900) and the sea-star Odontaster validus Koehler 1911 at Terra Nova Bay (Ross Sea): different strategies related to inter-annual variations in food availability

Chiantore, Mariachiara; Cattaneo‐Vietti, Riccardo; Elia, Laura; Guidetti, Marta; Antonini, M.

doi:10.1007/s00300-001-0331-1

Cited by 44 publications

(26 citation statements)

References 25 publications

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“…However, in contrast to the more comprehensively investigated Antarctic regions (e.g. Bosch & Pearse 1990, Clarke 1992, Hain & Arnaud 1992, Chiantore et al 2002 little information exists on the development modes of Arctic animals. Due to the limited knowledge of Arctic meroplankton ecology of species present in the Kara Sea, the development types were classified by the habitat occurrence of the larvae (i.e.…”

Section: Methodsmentioning

confidence: 98%

Reproductive strategies of benthic invertebrates in the Kara Sea (Russian Arctic): adaptation of reproduction modes to cold water

Fetzer

Arntz²

2008

Mar. Ecol. Prog. Ser.

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Many benthic invertebrates in the boreo-Atlantic region reproduce via pelagic larvae. Past investigations in polar areas suggested a greater predominance of species lacking a pelagic phase. In this study, the reproduction strategies of the main 88 species of the Kara Sea were investigated. Field observations were supplemented by literature studies (reproduction period and strategy, biogeographical affiliation). Larvae of 44 meroplanktonic species were identified, but adult forms of only 23 of these species are known from the region. For the other 21 larval types, adults were not present in the Kara Sea but have previously been recorded in the adjacent Barents Sea. Larval transport processes are thus potentially important for the import of species into the region. High numbers of species of temperate origin were common, and had a strong influence on the overall reproduction patterns of the region. The southern Kara Sea was mainly dominated by 2 groups: highly mobile crustaceans, which are obligate non-pelagic developers, and non-motile organisms with primarily pelagic reproduction modes. We propose that reproduction patterns are strongly influenced by the highly variable environmental conditions of the Kara Sea which, via ice-scouring and the high input of freshwater from the 2 adjacent rivers, regularly lead to a local depletion of the benthic species. The input of warm freshwater from the rivers enhances the survival of species with a boreal biogeographical distribution, which additionally contributes to the high number of species with pelagic development that were found. Overall, the reproduction modes of benthic invertebrates in the Kara Sea are thus strongly governed by the local environmental conditions characteristic of the region.

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Section: Methodsmentioning

confidence: 98%

Reproductive strategies of benthic invertebrates in the Kara Sea (Russian Arctic): adaptation of reproduction modes to cold water

Fetzer

Arntz²

2008

Mar. Ecol. Prog. Ser.

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“…However, a different perspective, based on developmental modes and energy requirements of larval stages rather than on adult food necessities, suggests that polar invertebrates with planktotrophic larvae may reproduce coupled to phytoplankton blooms, while brooders or those with lecithotrophic larvae may be decoupled from primary production pulses and reproduce year-round (Pearse et al 1991). Different strategies have been described for polar marine invertebrates; however, most of the available information is based on Antarctic species (i.e., Clarke 1996; Barnes and Clarke 1998;Chiantore et al 2002;Orejas et al 2002;Grange et al 2004Grange et al , 2007Grange et al , 2011Sahade et al 2004b;Brockington et al 2007;Servetto et al 2013;Servetto and Sahade 2016), and data for Arctic species are scarce (Poltermann et al 2000;Brandner et al 2017).…”

Section: Introductionmentioning

confidence: 99%

Reproductive biology of the ascidians Styela rustica and Halocynthia pyriformis from Kongsfjorden, Svalbard, Arctic

et al. 2019

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Ascidians are abundant and well-represented members of worldwide benthic communities, including Antarctica and the Arctic. These organisms exhibit different reproductive patterns usually related to a latitudinal gradient, as do many marine invertebrate species. Reproductive seasonality varies from one or two annual peaks in cold and temperate water species to continuous reproduction throughout the year in warm water species. Styela rustica (Linnaeus 1767) and Halocynthia pyriformis (Rathke 1806) are solitary species with external fertilization and a wide distribution range, from the North Atlantic to the Arctic. The reproductive patterns of these two species were assessed for Arctic populations by year-round sampling and structural analysis of the gonads. Both species are hermaphrodites and showed marked seasonality in oocyte maturity and spawning; S. rustica peaked during the boreal summer and H. pyriformis in late spring. The two species also showed marked differences in mature oocyte sizes: H. pyriformis almost doubled those of S. rustica and, while spermatocytes of H. pyriformis were mature year-round, the maturity of male and female gametes was synchronized in S. rustica. The species thus showed an annual reproductive cycle coupled with a higher production period in the ecosystem, but also exhibited different strategies developed under the same environmental pressures.

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“…Adamussium colbecki is dioecious and becomes sexually mature at 5-7 years. It shows an annual gametogenic cycle and, in the Ross Sea, sexual maturity is reached late in the summer (Chiantore et al 2002, Guidetti et al 2004, probably related to the water column food supply following the phytoplankton bloom.…”

Section: Introductionmentioning

confidence: 99%

Exchange between populations of Adamussium colbecki (Mollusca: Bivalvia) in the Ross Sea

et al. 2006

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The endemic Antarctic scallop Adamussium colbecki (Mollusca: Bivalvia) represents a key species in the Ross Sea littoral benthic ecosystem, locally reaching very high densities. This species has an annual gametogenic cycle, with a summer spawning event, and a pelagic larval behaviour. This paper aims at describing population structure and genetic polymorphism (using AFLP) of the large populations inhabiting the Ross Sea (Terra Nova Bay and McMurdo Sound) in order to investigate possible genetic exchange between A. colbecki in these areas. In Terra Nova Bay, size-frequency distributions show, generally, the dominance of large individuals, although site related differences are found in the abundance of smaller size classes (less than 40 mm), suggesting that recruitment is not a regular event. All McMurdo sites are characterized by large individuals and, at least during this sampling period, recruitment is completely absent. Nuclear DNA analyses show that the largest differences are found at the largest scale (between McMurdo Sound and Terra Nova Bay), but all populations sampled, even at a smaller spatial scale, have a well-settled genetic structure, notwithstanding the pelagic larval strategy. The panmixia hypothesis has therefore to be rejected for this species.

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Reproduction and condition of the scallop Adamussium colbecki (Smith 1902), the sea-urchin Sterechinus neumayeri (Meissner 1900) and the sea-star Odontaster validus Koehler 1911 at Terra Nova Bay (Ross Sea): different strategies related to inter-annual variations in food availability

Cited by 44 publications

References 25 publications

Reproductive strategies of benthic invertebrates in the Kara Sea (Russian Arctic): adaptation of reproduction modes to cold water

Reproductive strategies of benthic invertebrates in the Kara Sea (Russian Arctic): adaptation of reproduction modes to cold water

Reproductive biology of the ascidians Styela rustica and Halocynthia pyriformis from Kongsfjorden, Svalbard, Arctic

Exchange between populations of Adamussium colbecki (Mollusca: Bivalvia) in the Ross Sea

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