Biology of Salpa thompsoni at the Chatham Rise, New Zealand: demography, growth, and diel vertical migration
Biology of Salpa thompsoni at the Chatham Rise, New Zealand: demography, growth, and diel vertical migration
复制标题
新西兰查塔姆隆起的 Salpa thompsoni 生物学:人口统计、生长和昼夜垂直迁移
DOI:
10.1007/s00227-020-03775-x
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发表时间:
2020
期刊:
影响因子:
2.4
通讯作者:
Décima, Moira
中科院分区:
文献类型:
--
作者:
Lüskow, Florian;Pakhomov, Evgeny A.;Stukel, Michael R.;Décima, Moira
The abundant pelagic tunicateSalpa thompsoniis a major grazer in the Southern Ocean (SO) with high ingestion rates, fast-sinking faecal pellets, and the potential to rapidly grow and form dense blooms. We investigated the length-frequency distribution, maturity stage composition, growth, development speed, and size-specific diel vertical abundance patterns at one of the northernmost habitats ofS. thompsoni(Chatham Rise, east of New Zealand, ~ 44°S 178°E). By observing the in situ growth of distinct size cohorts and ex situ on-board experiments, relative growth was estimated for 6–10 mm blastozooids to be between 8.8–11.7% d−1at ambient temperatures of 10 °C, with good agreement between our cohort-based field estimates and ex situ growth chambers. Transition times between development stages were estimated to be 3.8 ± 1.5 days, allowing for the succession from newly released aggregate chain to functional male blastozooid within 23 days. Integrative Bongo tows in the upper 200 m showed thatS. thompsoninot only have daytime-dependent vertical abundance patterns, but also that these are size-specific, with medium-sized blastozooids and large oozooids contributing most to the elevated values during the night. The present study highlights the need for more in-depth biological studies ofS. thompsoniat lower latitudes, which will help in understanding their increasingly structuring role in a gradually warming SO.
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DOI:
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发表时间:
1988
期刊:
影响因子:
--
作者:
J.;S.;P. Nival
通讯作者:
P. Nival
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
チバ サナエ;ナホ ホリモト;リキ サトウ;ユクヤ ヤマグチ;タカシ イシマル;Chiba Sanae;Horimoto Naho;Satoh Riki;Yamaguchi Yukuya;Ishimaru Takashi
通讯作者:
Ishimaru Takashi
DOI:
--
发表时间:
1998
期刊:
影响因子:
--
作者:
R. Perissinotto;E. Pakhomov
通讯作者:
E. Pakhomov
影响因子:
2
作者:
HANCHET, S
通讯作者:
HANCHET, S
DOI:
--
发表时间:
1995
期刊:
影响因子:
--
作者:
L. Stramma;R. Peterson;M. Tomczak
通讯作者:
M. Tomczak