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Dataset results
11 results for “Calanus finmarchicus”
Raw Data: Timing of Calanus finmarchicus diapause in stochastic environments
<p><strong>This dataset contains the raw (unprocessed) model outputs of the Individual-Based Model used to generate the research article: </strong></p> <p>Bandara, K., Varpe, Ø., Maps, F., Ji, R., Eiane, K., & Tverberg, V. (2021). Timing of Calanus finmarchicus diapause in stochastic environments. <em>Ecological Modelling</em>, <em>460</em>, 109739.</p> <p><strong>Description</strong></p> <p>ITEM DESCRIPTION<br> ----------------<br> CONTENTS : RAW DATA FILES<br> UNCOMPRESSED SIZE : 19.6 GB <br> COMPRESSION : YES<br> COMPRESSED SIZE : 3.74 GB<br> COMPRESSION FORMAT : .ZIO<br> ENCRYPTION : NO<br> ENCRYPT METHOD : N/A<br> INTERNAL FILE TYPE(S) : .CSV<br> SOURCE : PASCAL <br> ID : v3.x (2020-2022)<br> DECRYPTION PASSWD : N/A<br> DOWNLOADABLE FROM : 10.5281/zenodo.7646734</p> <p>DATA DESCRIPTION<br> ----------------<br> THIS ARCHIVE CONTAINS FIVE (05) DIRECTORIES. EACH FROM A SINGLE SIMULATION EXPERIMENT, INDICATED BY THE FILE NAMES. <br> + DeterministicSetting : SIMULATION RAN IN DETERMINISTIC MODEL ENVIRONMENT (FIG. 2A-C)<br> + STStochasticSetting : SIMULATION RAN IN SHORTER-TERM (6-H) STOCHASTIC ENVIRONMENT (FIG. 2D-F)<br> + LTStochasticSetting-TFI : SIMULATION RAN IN LONGER-TERM (INTERANNUAL) STOCHASTIC ENVIRONMENT WITH GROWTH POTENTIAL VARIABILITY ONLY (FIG. 2G)<br> + LTStochasticSetting-VPR : SIMULATION RAN IN LONGER-TERM (INTERANNUAL) STOCHASTIC ENVIRONMENT WITH GROWTH POTENTIAL + VISUAL PREDATION RISK VARIABILITY (FIG. 2G)<br> + LTStochasticSetting-NVPR : SIMULATION RAN IN LONGER-TERM (INTERANNUAL) STOCHASTIC ENVIRONMENT WITH GROWTH POTENTIAL VARIABILITY + NON-VISUAL PREDATION RISK VARIABILITY (FIG. 2G)</p> <p>KEY<br> ---<br> + AnnualLog : DOUBLE VALUES OF LOW-RESOLUTION TRACKERS <br> + DailyLog_I : INTEGER VALUES OF HIGH-RESOLUTION TRACKERS<br> + DailyLog_R : DOUBLE VALUES OF HIGH-RESOLUTION TRACKERS<br> + VerticalPosition_N : INTEGER VALUES OF POPULATION VERTICAL DISTRIBUTION (NUMBER OF INDIVIDUALS IN EACH 1M x 6H BIN)<br> + VerticalPosition_CW : DOUBLE VALUES OF AVERAGE BODYMASS VERTICAL DISTRIBUTION (AVERAGE INDIVIDUAL BODYMASS IN EACH 1M x 6H BIN) :: UNUSED IN ANALYSES<br> + VerticalPosition_SW : DOUBLE VALUES OF AVERAGE ENERGY RESERVE VERTICAL DISTRIBUTION (AVERAGE INDIVIDUAL ENERGY RESERVES [LIPIDSCAPE] IN EACH 1M x 6H BIN) :: UNUSED IN ANALYSES<br> + FoodConcentration : DOUBLE VALUES OF 1D FOOD ENVIRONMENT<br> + Irradiance : DOUBLE VALUES OF 1D SUB-SURFACE IRRADIANCE ENVIRONMENT<br> + Temperature : DOUBLE VALUES OF 1D TEMPERATURE ENVIRONMENT<br> + VisualPredationRisk : DOUBLE VALUES OF 1D UNSCALED VISUAL PREDATION ENVIRONMENT</p> <p>NOTES<br> -----<br> The above attributes (excl. AnnualLog) are recorded for 100 calendar year in the LTStochasticSetting-TFI, LTStochasticSetting-VPR & LTStochasticSetting-NVPR simulations.<br> These are named after the year number (e.g. DailyLog_I_1, DailyLog_I_2....)</p> <p>ADDITIONAL FILES<br> ----------------<br> SOME DIRECTORIES MAY CONTAIN ADDITIONAL FILES, SUCH AS THOSE USED AS PCA INPUTS. THESE ARE PROCESSED FILES.<br> AVERAGE ANNUAL ENVIRONMENTAL VARIABLES TRACED IN THE "ENV" DIRECTORY (ONLY FOR LONGER-TERM STOCHASTIC SIMULATIONS).</p> <p>FURTHER QUESTIONS?<br> ------------------<br> Direct further question, either to: info@kanchanabandara.com (personal) or kba@akvaplan.niva.no (official)</p>
Environmental niche overlap in sibling planktonic species calanus finmarchicus and c. glacialis in Arctic fjords
<p><span>Knowledge of the environmental preferences of the key planktonic species, such as Calanus copepods in the Arctic, is crucial to understand ecosystem function and its future under climate change. Here we assessed the environmental conditions influencing the development stages of Atlantic C. finmarchicus and Arctic C. glacialis, and quantified the extent to which their niches overlap by incorporating multiple environmental data. We based our analysis on a three-year seasonal collection of zooplankton by sediment traps, located on moorings in two contrasting Svalbard fjords: the Arctic Rijpfjorden, and the Atlantic-influenced Kongsfjorden. Despite large differences in water temperature between the fjords, local realized niches of the sibling Calanus species overlapped almost perfectly. The exception was the earliest copepodites of C. glacialis in Rijpfjorden, which probably utilized the local ice algal bloom in spring. However, during periods with no sea ice, like in Kongsfjorden, the siblings of both Calanus species showed high synchronization in the population structure. Interestingly, differences in temperature preferences of C. finmarchicus and C. glacialis were much higher between the studied fjords than between the species. Our analysis confirmed the high plasticity of Calanus copepods and their </span><span>abilities to adapt to highly variable environmental settings, not only on an interannual basis, but also </span><span>in a climate warming context</span><span>, indicating some resilience in the Calanus community.</span></p>
Diapause vs. reproductive programs: transcriptional phenotypes in Calanus finmarchicus
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Environmental niche overlap in sibling planktonic species calanus finmarchicus and c. glacialis in Arctic fjords
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Calanus InDel genotypes from: No evidence for hybridization between Calanus finmarchicus and C. glacialis in a subarctic area of sympatry
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Data from: Assessing stable isotope dynamics of diapausing Calanus finmarchicus and C. hyperboreus during the overwintering period: a laboratory experiment
This study aimed at describing changes in the stable isotopic composition of late copepodite stage V (CV) subarctic marine copepods (Calanus finmarchicus and C. hyperboreus) during overwintering non-feeding periods. Diapausing stage CVs sampled in deep waters of the Lower St. Lawrence Estuary (Québec, Canada) in late-September 2009 were monitored for 4 months under controlled laboratory conditions. CVs and newly moulted adults were analyzed for δ13C and δ15N signatures as well as lipid, carbon and nitrogen content. Lipids were extracted in half of the samples to compare δ13C of individuals with and without lipids and to evaluate the accuracy of mass balance correction models for δ13C under lipid influence. Lipid content generally decreased with time for both species, which was reflected in an increase of δ13C values of CVs but a constant δ13C in newly moulted adults. Accordingly, lipid extraction resulted in an increase of δ13C in CVs and adults. The mean δ13C signature of lipid-extracted individuals remained constant through the time for CVs of both species and for C. finmarchicus adults. δ15N signatures of individuals increased after lipid extraction, but this did not result in a constant value over time, suggesting that several endogenous metabolic processes affected nitrogen isotopic content. The accuracy of the mass balance model differed between species and stages, suggesting that lipid extraction should always be performed prior to applying mathematical corrections.
Gene expression data from qPCR analysis of molting relevant genes in Calanus finmarchicus utilizing double delta-Ct method
<p>Gene expression data from qPCR analysis of molting relevant genes in Calanus finmarchicus utilizing double delta-Ct method for calculations of fold change and mean fold change. </p>
Data from: Transcriptomic responses of the calanoid copepod Calanus finmarchicus to the saxitoxin producing dinoflagellate Alexandrium fundyense
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Data from: Assessing stable isotope dynamics of diapausing Calanus finmarchicus and C. hyperboreus during the overwintering period: a laboratory experiment
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Functional genomics resources for the North Atlantic copepod, Calanus finmarchicus: EST database and physiological microarray.
GEO Series GSE34322. Calanus finmarchicus. 11 samples. Type: Expression profiling by array.
Comparative analysis of Calanus finmarchicus collected from surface and deep waters in Gulf of Maine
GEO Series GSE33086. Calanus finmarchicus. 10 samples. Type: Expression profiling by array.
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