Does predation control the diapausing stock of Calanus finmarchicus in the Gulf of Maine?
Does predation control the diapausing stock of Calanus finmarchicus in the Gulf of Maine?
复制标题
捕食是否控制了缅因湾的Finmarchicus 滞育种群?
DOI:
10.1016/j.pocean.2022.102861
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发表时间:
2022
影响因子:
4.1
通讯作者:
Greene, C.H.
中科院分区:
文献类型:
--
作者:
Wiebe, P.H.;Baumgartner, M.F.;Copley, N.J.;Lawson, G.L.;Davis, C.;Ji, R.;Greene, C.H.
The variability of zooplankton populations is controlled by external and internal forcing, with the former being principally large-scale changes in circulation, and the latter being driven by in situ growth, competition, and predation. Assessing the relative importance of these forcings is challenging and requires analyses of multifaceted observational data. As part of the U.S. GLOBEC Georges Bank program, a series of cruises were conducted in fall 1997, 1998, and 1999 to survey diapausing populations ofCalanus finmarchicusand their predators in Wilkinson, Jordan, and Georges Basins of the Gulf of Maine. Station and underway sampling were conducted using net (1 m2MOCNESS) and bioacoustic (BIOMAPER-II) systems, respectively, to acquire vertically stratified data for zooplankton biomass, taxonomic, size, and life-stage composition, together with associated environmental data. The results show that the autumn diapausingC. finmarchicusabundance was much lower in 1998 than in 1997 or 1999, even though the overall zooplankton biomass levels were comparable between the three years. The size frequency distribution of the diapausing individuals had a bi-modal pattern in 1997 and 1999, but a single mode in 1998, indicating the demise of an early cohort of the diapausing stock. The relative biomass and computed energy demand of potential invertebrate predators (euphausiids, decapods, medusae, and siphonophores) was found to be higher in 1998 and could account for the missingC. finmarchicuscohort. Evidence collected from this study supports the hypothesis that local predation has the potential to control the diapausing stock ofC. finmarchicusin the Gulf of Maine.
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影响因子:
2.4
作者:
A. Lavery;P. Wiebe;T. Stanton;G. Lawson;M. Benfield;N. Copley
通讯作者:
N. Copley
DOI:
10.1016/s0967-0645(00)00088-6
发表时间:
2001-01-01
影响因子:
3
作者:
Conversi, A;Piontkovski, S;Hameed, S
通讯作者:
Hameed, S
DOI:
10.2307/1537711
发表时间:
1941
期刊:
The Biological Bulletin
影响因子:
--
作者:
A. C. Redfield
通讯作者:
A. C. Redfield
影响因子:
2.5
作者:
H. Bigelow
通讯作者:
H. Bigelow
DOI:
10.2307/1538223
发表时间:
1943
期刊:
The Biological Bulletin
影响因子:
--
作者:
G. L. Clarke;E. L. Pierce;D. Bumpus
通讯作者:
D. Bumpus