Ampelisca eschrichtii Krøyer, 1842 (Ampeliscidae) of the Sakhalin Shelf in the Okhotsk Sea starve in summer and feast in winter

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1 Laboratory of Physiology, National Scientific Center of Marine Biology FEB RAS, 690041, ul. Palchevskogo 17, Vladivostok, Russia
2 Department of Fisheries and Wildlife, Oregon State University, Newport, Oregon 97365, United States of America
3 Laboratory of Marine Ecosystem Dynamics, National Scientific Center of Marine Biology FEB RAS, 690041, ul. Palchevskogo 17, Vladivostok, Russia
DOI
10.7287/peerj.preprints.3496v1
Published
Accepted
Subject Areas
Conservation Biology, Ecology, Marine Biology, Zoology, Histology
Keywords
Gray whale, Ampelisca, trophic dynamics, adaptation, Sakhalin Island, reproduction, production, histology, ecology, starvation
Copyright
© 2017 Durkina et al.
Licence
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ Preprints) and either DOI or URL of the article must be cited.
Cite this article
Durkina VB, Chapman JW, Demchenko NL. 2017. Ampelisca eschrichtii Krøyer, 1842 (Ampeliscidae) of the Sakhalin Shelf in the Okhotsk Sea starve in summer and feast in winter. PeerJ Preprints 5:e3496v1

Abstract

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.

Author Comment

This is a submission to PeerJ for review.

Supplemental Information

Raw data for Durkina et al. tables 1-3

DOI: 10.7287/peerj.preprints.3496v1/supp-1

Data for Figure 6

Data for Figure 6 ( Species, Site, Sample, Region, Body Length (mm), Weight (g), Sex, Brood development Index, Jul + Sep 2015, Embryo development Notes, Date, Expected Brood Size [Exp. BS])

DOI: 10.7287/peerj.preprints.3496v1/supp-2