Egg masses and larval development of the Antarctic cephalaspidean snail Waegelea antarctica (Cephalaspidea: Antarctophilinidae), with notes on egg masses of the related Antarctophiline alata
ABSTRACT We describe, for the first time, egg masses and larval developmental mode of a recently described Antarctic philinoid snail, Waegelea antarctica. Egg masses resembled the gelatinous, attached masses of many temperate philinoid species and contained very large offspring that hatched as devel...
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2021
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Online Access: | http://dx.doi.org/10.1093/mollus/eyab027 http://academic.oup.com/mollus/article-pdf/87/3/eyab027/40364163/eyab027.pdf |
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croxfordunivpr:10.1093/mollus/eyab027 2023-05-15T14:10:22+02:00 Egg masses and larval development of the Antarctic cephalaspidean snail Waegelea antarctica (Cephalaspidea: Antarctophilinidae), with notes on egg masses of the related Antarctophiline alata Moran, A L Toh, M-W A Lobert, G T Ely, T Marko, P B 2021 http://dx.doi.org/10.1093/mollus/eyab027 http://academic.oup.com/mollus/article-pdf/87/3/eyab027/40364163/eyab027.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model Journal of Molluscan Studies volume 87, issue 3 ISSN 0260-1230 1464-3766 Animal Science and Zoology Aquatic Science journal-article 2021 croxfordunivpr https://doi.org/10.1093/mollus/eyab027 2023-02-03T11:07:32Z ABSTRACT We describe, for the first time, egg masses and larval developmental mode of a recently described Antarctic philinoid snail, Waegelea antarctica. Egg masses resembled the gelatinous, attached masses of many temperate philinoid species and contained very large offspring that hatched as developmentally advanced veligers with many juvenile features. Like other Antarctic heterobranch egg masses, development in the masses of W. antarctica appeared to be largely synchronous despite low internal oxygen levels. Hatched larvae could both swim and crawl, and we did not observe metamorphosis over several days. Molecular barcoding using cytochrome c oxidase subunit I (COI) showed an almost perfect (<0.002% difference) match between our specimens from McMurdo Sound in the Ross Sea and a single sequence from a specimen collected >8,000 km away in the Weddell Sea, suggesting either high realized larval dispersal or a recent range expansion. We also describe the egg mass of the related Antarctophiline alata (identified using COI barcoding) from the Ross Sea, which differed from published descriptions in having considerably smaller embryos. Article in Journal/Newspaper Antarc* Antarctic Antarctica McMurdo Sound Ross Sea W. Antarctica Weddell Sea Oxford University Press (via Crossref) Antarctic McMurdo Sound Ross Sea The Antarctic Weddell Weddell Sea Journal of Molluscan Studies 87 3 |
institution |
Open Polar |
collection |
Oxford University Press (via Crossref) |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Animal Science and Zoology Aquatic Science |
spellingShingle |
Animal Science and Zoology Aquatic Science Moran, A L Toh, M-W A Lobert, G T Ely, T Marko, P B Egg masses and larval development of the Antarctic cephalaspidean snail Waegelea antarctica (Cephalaspidea: Antarctophilinidae), with notes on egg masses of the related Antarctophiline alata |
topic_facet |
Animal Science and Zoology Aquatic Science |
description |
ABSTRACT We describe, for the first time, egg masses and larval developmental mode of a recently described Antarctic philinoid snail, Waegelea antarctica. Egg masses resembled the gelatinous, attached masses of many temperate philinoid species and contained very large offspring that hatched as developmentally advanced veligers with many juvenile features. Like other Antarctic heterobranch egg masses, development in the masses of W. antarctica appeared to be largely synchronous despite low internal oxygen levels. Hatched larvae could both swim and crawl, and we did not observe metamorphosis over several days. Molecular barcoding using cytochrome c oxidase subunit I (COI) showed an almost perfect (<0.002% difference) match between our specimens from McMurdo Sound in the Ross Sea and a single sequence from a specimen collected >8,000 km away in the Weddell Sea, suggesting either high realized larval dispersal or a recent range expansion. We also describe the egg mass of the related Antarctophiline alata (identified using COI barcoding) from the Ross Sea, which differed from published descriptions in having considerably smaller embryos. |
format |
Article in Journal/Newspaper |
author |
Moran, A L Toh, M-W A Lobert, G T Ely, T Marko, P B |
author_facet |
Moran, A L Toh, M-W A Lobert, G T Ely, T Marko, P B |
author_sort |
Moran, A L |
title |
Egg masses and larval development of the Antarctic cephalaspidean snail Waegelea antarctica (Cephalaspidea: Antarctophilinidae), with notes on egg masses of the related Antarctophiline alata |
title_short |
Egg masses and larval development of the Antarctic cephalaspidean snail Waegelea antarctica (Cephalaspidea: Antarctophilinidae), with notes on egg masses of the related Antarctophiline alata |
title_full |
Egg masses and larval development of the Antarctic cephalaspidean snail Waegelea antarctica (Cephalaspidea: Antarctophilinidae), with notes on egg masses of the related Antarctophiline alata |
title_fullStr |
Egg masses and larval development of the Antarctic cephalaspidean snail Waegelea antarctica (Cephalaspidea: Antarctophilinidae), with notes on egg masses of the related Antarctophiline alata |
title_full_unstemmed |
Egg masses and larval development of the Antarctic cephalaspidean snail Waegelea antarctica (Cephalaspidea: Antarctophilinidae), with notes on egg masses of the related Antarctophiline alata |
title_sort |
egg masses and larval development of the antarctic cephalaspidean snail waegelea antarctica (cephalaspidea: antarctophilinidae), with notes on egg masses of the related antarctophiline alata |
publisher |
Oxford University Press (OUP) |
publishDate |
2021 |
url |
http://dx.doi.org/10.1093/mollus/eyab027 http://academic.oup.com/mollus/article-pdf/87/3/eyab027/40364163/eyab027.pdf |
geographic |
Antarctic McMurdo Sound Ross Sea The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic McMurdo Sound Ross Sea The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctica McMurdo Sound Ross Sea W. Antarctica Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica McMurdo Sound Ross Sea W. Antarctica Weddell Sea |
op_source |
Journal of Molluscan Studies volume 87, issue 3 ISSN 0260-1230 1464-3766 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/mollus/eyab027 |
container_title |
Journal of Molluscan Studies |
container_volume |
87 |
container_issue |
3 |
_version_ |
1766282428472623104 |