Ampelisca eschrichtii Krøyer, 1842 ( Ampeliscidae) of the Sakhalin Shelf in the Okhotsk Sea starve in summer and feast in winter
Ampelisca eschrichtii Krøyer, 1842 of the Sakhalin Shelf of the Okhotsk Sea, Far Eastern Russia, comprise the highest known biomass concentration of any amphipod population in the world and are a critically important prey source for western gray whales. The high prevalence of atrophied ovaries, unde...
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crpeerj:10.7287/peerj.preprints.3496v1 2024-06-02T08:12:41+00:00 Ampelisca eschrichtii Krøyer, 1842 ( Ampeliscidae) of the Sakhalin Shelf in the Okhotsk Sea starve in summer and feast in winter Durkina, Valentina B. Chapman, John W. Demchenko, Natalia L. 2017 http://dx.doi.org/10.7287/peerj.preprints.3496v1 https://peerj.com/preprints/3496v1.pdf https://peerj.com/preprints/3496v1.xml https://peerj.com/preprints/3496v1.html unknown PeerJ http://creativecommons.org/licenses/by/4.0/ posted-content 2017 crpeerj https://doi.org/10.7287/peerj.preprints.3496v1 2024-05-07T14:13:31Z Ampelisca eschrichtii Krøyer, 1842 of the Sakhalin Shelf of the Okhotsk Sea, Far Eastern Russia, comprise the highest known biomass concentration of any amphipod population in the world and are a critically important prey source for western gray whales. The high prevalence of atrophied ovaries, undersized and damaged oocytes, undersized broods of embryos and the absence of terminal phase males or females brooding fully formed juveniles among these populations in late spring and early fall are consistent with trophic stress and starvation. A. eschrichtii therefore appear to starve in summer and grow and reproduce in late fall and winter. In summer, these populations, occur below water strata containing the bulk of phytoplankton biomass and appear more likely to receive their trophic sources with vertical mixing that occurs in winter. Other/Unknown Material okhotsk sea Sakhalin PeerJ Publishing Okhotsk |
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PeerJ Publishing |
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crpeerj |
language |
unknown |
description |
Ampelisca eschrichtii Krøyer, 1842 of the Sakhalin Shelf of the Okhotsk Sea, Far Eastern Russia, comprise the highest known biomass concentration of any amphipod population in the world and are a critically important prey source for western gray whales. The high prevalence of atrophied ovaries, undersized and damaged oocytes, undersized broods of embryos and the absence of terminal phase males or females brooding fully formed juveniles among these populations in late spring and early fall are consistent with trophic stress and starvation. A. eschrichtii therefore appear to starve in summer and grow and reproduce in late fall and winter. In summer, these populations, occur below water strata containing the bulk of phytoplankton biomass and appear more likely to receive their trophic sources with vertical mixing that occurs in winter. |
format |
Other/Unknown Material |
author |
Durkina, Valentina B. Chapman, John W. Demchenko, Natalia L. |
spellingShingle |
Durkina, Valentina B. Chapman, John W. Demchenko, Natalia L. Ampelisca eschrichtii Krøyer, 1842 ( Ampeliscidae) of the Sakhalin Shelf in the Okhotsk Sea starve in summer and feast in winter |
author_facet |
Durkina, Valentina B. Chapman, John W. Demchenko, Natalia L. |
author_sort |
Durkina, Valentina B. |
title |
Ampelisca eschrichtii Krøyer, 1842 ( Ampeliscidae) of the Sakhalin Shelf in the Okhotsk Sea starve in summer and feast in winter |
title_short |
Ampelisca eschrichtii Krøyer, 1842 ( Ampeliscidae) of the Sakhalin Shelf in the Okhotsk Sea starve in summer and feast in winter |
title_full |
Ampelisca eschrichtii Krøyer, 1842 ( Ampeliscidae) of the Sakhalin Shelf in the Okhotsk Sea starve in summer and feast in winter |
title_fullStr |
Ampelisca eschrichtii Krøyer, 1842 ( Ampeliscidae) of the Sakhalin Shelf in the Okhotsk Sea starve in summer and feast in winter |
title_full_unstemmed |
Ampelisca eschrichtii Krøyer, 1842 ( Ampeliscidae) of the Sakhalin Shelf in the Okhotsk Sea starve in summer and feast in winter |
title_sort |
ampelisca eschrichtii krøyer, 1842 ( ampeliscidae) of the sakhalin shelf in the okhotsk sea starve in summer and feast in winter |
publisher |
PeerJ |
publishDate |
2017 |
url |
http://dx.doi.org/10.7287/peerj.preprints.3496v1 https://peerj.com/preprints/3496v1.pdf https://peerj.com/preprints/3496v1.xml https://peerj.com/preprints/3496v1.html |
geographic |
Okhotsk |
geographic_facet |
Okhotsk |
genre |
okhotsk sea Sakhalin |
genre_facet |
okhotsk sea Sakhalin |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.7287/peerj.preprints.3496v1 |
_version_ |
1800759211319099392 |