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log in [COVID Galapagos Megafauna Sizes] - Body size measurements of megafauna species at 6 sites after the 2020 COVID lockdown in the Galapagos Islands from 2020-2021 (Galapagos diver disturbance project) (RAPID: Illuminating the effects of a COVID-19 elimination of diver disturbance on reef fish behavior, distribution and ecosystem functioning in the Galapagos Marine Reserve) The effect of changing levels of scuba diver disturbance, from a low during the 2020 COVID 19 lockdown to normal levels nearly a year later (July - August 2021) on the body sizes of  6 species of marine megafauna (sharks, sea lions and rays) was sampled to test the hypothesis the megafauna community would differ between the lockdown and post-lock down period 1 year later.  These data are from the period after the COVID 19 lockdown in July-August 2021. \n\nThe presence and size of the megafauna was recorded by extended duration video cameras that recorded from a fixed position at 12-15 m depth at each of the 6 sites. These were GoPro7 cameras in an aluminum housing with a battery pack to enable 6-8 hrs of continuous video recording. All megafauna species seen within 5 meters distance from the camera were identified to species. Total body lengths of megafauna were estimated within 5 cm increments by comparing them to known size indicators in the videos.  \n\nThese data were collected by Drs Robert Lamb, Jon Witman and Franz Smith. Rebecca Ward-Diorio worked up the data from the GoPro files.  The GoPro file names are provided for reference. Day trips to support scuba based research on board the MV Valeska, a 14 m long fiberglass boat. Various trips between October 1, 2020 to August 31, 2021, with Jon Witman as Chief Scientist\n\ncdm_data_type = Other\nVARIABLES:\nSite (unitless)\nSite_Latitude (degrees_north)\nlongitude (Site_longitude, degrees_east)\nDate (unitless)\nGoPro_Video_File_name (unitless)\nSpecies_Code (unitless)\nTotal_body_length (cm)\n BCO-DMO bcodmo_dataset_913952_v1
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_918546_v1 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_918546_v1.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_918546_v1/ public [Effect of phenotypic variation on dogwhelk morphology during eco-evolutionary field experiment] - Effect of phenotypic variation on dogwhelk morphology during an eco-evolutionary field experiment (Coastal mosaics of local adaptation and the eco-evolutionary dynamics of a marine predator-prey interaction) Although there is a growing body of work indicating that ecological and evolutionary processes can have reciprocal feedbacks on one another, few studies have tested these feedbacks in natural field settings at the community level. We tested the ecological consequences of selection on intra-population variation in dogwhelk drilling. We reared juvenile dogwhelks (Nucella canaliculata) on four early-life diet treatments (thin-shelled Mytilus trossulus, two treatments of M. californianus from two populations known to differ in adult shell thickness, and acorn barnacles) and then outplanted the dogwhelks to field cages to quantify the community effects of variation in drilling phenotype on mussel bed succession over a year. Changes in Nucella canaliculata morphology (change in length) were determined over the course of the experiment.\n\ncdm_data_type = Other\nVARIABLES:\nBlock (unitless)\nPlot_Number (unitless)\nPlot_Tidal_Height (meters (m))\nFamily (unitless)\nSite_Latitude (degrees_north)\nlongitude (Site_longitude, degrees_east)\nTreatment (unitless)\nFamily_x_Treatment (unitless)\nSnail_ID (unitless)\nSnail_Tag (unitless)\nSex (unitless)\nLength_initial (millimeters (mm))\nLength_final (millimeters (mm))\nLength_change (millimeters (mm))\nDead_vs_Replaced_vs_Never_found (unitless)\nDate_dead_or_replaced (unitless)\n https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_918546_v1/index.htmlTable https://www.bco-dmo.org/dataset/918546 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_918546_v1.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_918546_v1&showErrors=false&email= BCO-DMO bcodmo_dataset_918546_v1
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_918401_v1 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_918401_v1.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_918401_v1/ public [Effects of early-life diet on mortality of juvenile Nucella canaliculata] - Effects of early-life diet on mortality of juvenile Nucella canaliculata quantified in the laboratory after 3 months on experimental diets (Coastal mosaics of local adaptation and the eco-evolutionary dynamics of a marine predator-prey interaction) The field of eco-evolutionary dynamics analyzes the reciprocal impacts that ecological and evolutionary processes have on one another on contemporary timescales. A promising approach for studying eco-evolutionary dynamics is to explore whether variation acting over rapid timescales can impose selection on existing within population-variation in functional traits. The Bodega Marine Reserve population of the Channeled Dogwhelk, Nucella canaliculata, contains a mix of drilling phenotypes. A selection experiment was performed to determine the effects of four early-life diet treatments (thin-shelled Mytilus trossulus mussels, two treatments of M. californianus from two populations known to differ in shell thickness, and acorn barnacles) on N. canaliculata phenotype. Dogwhelks were hatched in the laboratory and mortality of juvenile dogwhelks was quantified in the laboratory after 3 months on the experimental diets.\n\ncdm_data_type = Other\nVARIABLES:\nFamily (unitless)\nPopulation (unitless)\nSite_Latitude (degrees_north)\nlongitude (Site_longitude, degrees_east)\nTreatment (unitless)\nThree_Month_Mortality (percent (%))\n https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_918401_v1/index.htmlTable https://www.bco-dmo.org/dataset/918401 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_918401_v1.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_918401_v1&showErrors=false&email= BCO-DMO bcodmo_dataset_918401_v1
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_918460_v1 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_918460_v1.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_918460_v1/ public [Effects of early-life diet on Nucella canaliculata drilling phenotype] - Effects of early-life diet on Nucella canaliculata drilling phenotype quantified in the laboratory after rearing on different prey treatments (Coastal mosaics of local adaptation and the eco-evolutionary dynamics of a marine predator-prey interaction) The growing field of eco-evolutionary dynamics has highlighted the importance of reciprocal feedbacks between evolutionary and ecological processes. We tested whether selection could act on existing within-population variation in a predatory trait in the marine dogwhelk, Nucella canaliculata. We reared newly hatched dogwhelks on four prey treatments (thin-shelled Mytilus trossulus, two treatments of M. californianus from two populations known to differ in adult shell thickness, and acorn barnacles). To quantify dogwhelk phenotype, we tested the surviving adult dogwhelks on their ability to drill mid-sized (5-7cm long) M. californianus. We found evidence that dogwhelk phenotype varied among the early-life diet treatments.\n\ncdm_data_type = Other\nVARIABLES:\nContainer (unitless)\nRound (unitless)\nPopulation (unitless)\nSite_Latitude (degrees_north)\nlongitude (Site_longitude, degrees_east)\nFamily (unitless)\nTreatment (unitless)\nFamily_x_Treatment (unitless)\nSnail (unitless)\nDrilled_Binary (unitless)\nTotal_Drilled (unitless)\nCheck_1 (unitless)\nCheck_2 (unitless)\nCheck_3 (unitless)\nCheck_4 (unitless)\nCheck_5 (unitless)\nDead (unitless)\n https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_918460_v1/index.htmlTable https://www.bco-dmo.org/dataset/918460 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_918460_v1.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_918460_v1&showErrors=false&email= BCO-DMO bcodmo_dataset_918460_v1
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_918582_v1 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_918582_v1.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_918582_v1/ public [Effects of intra-population variation in dogwhelk drilling on the abundance and size of Mytilus californianus mussels] - Effects of intra-population variation in dogwhelk drilling on the abundance and size of Mytilus californianus mussels (Coastal mosaics of local adaptation and the eco-evolutionary dynamics of a marine predator-prey interaction) Few eco-evolutionary studies have analyzed the impacts that evolutionary processes have on community dynamics in a natural field setting. We studied the effects of intra-population variation in predation in a marine dogwhelk (Nucella canaliculata) on mussel bed succession. We outplanted dogwhelks that were reared on four early-life diet treatments and showed evidence of differential mortality and variation in drilling capacity in the lab to experimental field cages and followed the trajectory of succession over the course of a year. At the end of the experiment, the organisms within the cages were collected and the mussels (Mytilus californianus) were measured. Mussels represent the end stage of succession, thus we studied whether variation in drilling traits would impact the size and structure of the mussel bed.\n\ncdm_data_type = Other\nVARIABLES:\nBlock (unitless)\nPlot_Number (unitless)\nSite_Latitude (degrees_north)\nlongitude (Site_longitude, degrees_east)\nDate (unitless)\nLength (millimeters (mm))\nLive_vs_Dead (unitless)\n https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_918582_v1/index.htmlTable https://www.bco-dmo.org/dataset/918582 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_918582_v1.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_918582_v1&showErrors=false&email= BCO-DMO bcodmo_dataset_918582_v1
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_918518_v1 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_918518_v1.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_918518_v1/ public [Percent cover measure of mussel bed succession on rocky shores due to intra-population variation in dogwhelk drilling] - Percent cover measure of mussel bed succession on rocky shores due to intra-population variation in dogwhelk drilling (Coastal mosaics of local adaptation and the eco-evolutionary dynamics of a marine predator-prey interaction) Despite growing interest of eco-evolutionary dynamics, there have been few experiments that test the importance of these feedbacks in natural ecosystems at the community level. A selection experiment on intra-population variation in dogwhelk (Nucella canaliculata) drilling was performed in the laboratory. Dogwhelks were given one of four early-life diet treatments (thin-shelled Mytilus trossulus mussels, two treatments of M. californianus from two populations known to differ in shell thickness, and acorn barnacles) for the first 3 months of life. Surviving adult dogwhelks were outplanted to field cages at Bodega Marine Reserve to test the ecological consequences of divergent phenotypes. Mussel bed succession was quantified by percent cover of sessile organisms in the plots over the course of approximately one year.\n\ncdm_data_type = Other\nVARIABLES:\nBlock (unitless)\nPlot_Number (unitless)\nFamily (unitless)\nSite_Latitude (degrees_north)\nlongitude (Site_longitude, degrees_east)\nTreatment (unitless)\nFamily_x_Treatment (unitless)\nDate (unitless)\nCheck (unitless)\nBare_Rock (percent (%))\nAcorn_Barnacles (percent (%))\nMussels (percent (%))\nGooseneck_Barnacles (percent (%))\nOther_Sessile_Animals (percent (%))\nCoralline_Algae (percent (%))\nAlgae_and_Surfgrass (percent (%))\n https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_918518_v1/index.htmlTable https://www.bco-dmo.org/dataset/918518 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_918518_v1.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_918518_v1&showErrors=false&email= BCO-DMO bcodmo_dataset_918518_v1
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_918420_v1 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_918420_v1.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_918420_v1/ public [Shell thickness of mussel recruits] - Shell thickness of mussel recruits quantified in two species, Mytilus trossulus and Mytilus californianus (Coastal mosaics of local adaptation and the eco-evolutionary dynamics of a marine predator-prey interaction) Mussels are common on rocky shores along the west coast of North America and are prey to a number of species, including the Channeled Dogwhelk, Nucella canaliculata. When N. canaliculata hatch, they are dependent on a supply of newly recruited prey that are variable in abundance. To determine the strength of selection that early-life diet may impose on juvenile dogwhelks, recruit mussel shell thickness was quantified for two mussel species, Mytilus trossulus and Mytilus californianus. In addition, recruit M. californianus were collected from two locations, Bodega Marine Reserve and Soberanes Point, known to differ in the thickness of adult M. californianus.\n\ncdm_data_type = Other\nVARIABLES:\nMussel_Number (unitless)\nMussel_Type (unitless)\nSite_Latitude (degrees_north)\nlongitude (Site_longitude, degrees_east)\nWeight (grams (g))\nMagnification (unitless)\nLength_L (millimeters (mm))\nLength_R (millimeters (mm))\nArea_L (square millimeters (mm^2))\nArea_R (square millimeters (mm^2))\nTotal_Area (square millimeters (mm^2))\nShell_Thickness (grams per square millimeter (g/(mm^2)))\nNotes (unitless)\n https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_918420_v1/index.htmlTable https://www.bco-dmo.org/dataset/918420 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_918420_v1.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_918420_v1&showErrors=false&email= BCO-DMO bcodmo_dataset_918420_v1
https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_929825_v1 https://erddap.bco-dmo.org/erddap/tabledap/bcodmo_dataset_929825_v1.graph https://erddap.bco-dmo.org/erddap/files/bcodmo_dataset_929825_v1/ public [Subtidal Ocean Water Temperature at Van Damme State Park, CA] - Subtidal ocean water temperature at Van Damme State Park, California, from May 1992 to August 2023 (Collaborative Research: The effects of marine heatwaves on reproduction, larval transport and recruitment in sea urchin metapopulations) Ocean water temperatures were collected from May 14, 1992 to August 22, 2023 (these logger deployments are ongoing) from 10 meters benthic depth, at Van Damme State Park, Mendocino County, Northern California. Water temperatures were collected with Onset Hobotemp® and TidbiT® temperature loggers in degrees Celsius. Data are presented as daily averages of 10-minute minimum intervals.\n\nOcean water temperatures were collected to document long-term temperature conditions on the bottom at the level of the reef. Loggers were placed 1 meter off the bottom on stainless steel cages used to monitor juvenile abalone and sea urchin recruitment at this reference location.\n\nWater temperatures are presented as daily averages for the period of record. Some data gaps exist due to equipment failure, loss, or rough conditions precluding placement of data loggers. The data gaps are listed in the “Problems/Issues” section below.\n\nThese data are unique in that they are benthic seawater temperature data (1 meter from the bottom where the benthic animals live) which can be used to compare with the more readily available sea surface temperature data.\n\ncdm_data_type = Other\nVARIABLES:\nDate (unitless)\nMean_Daily_Temperature_C (degrees Celsius)\nlatitude (Site_latitude, degrees_north)\nlongitude (Site_longitude, degrees_east)\n https://erddap.bco-dmo.org/erddap/metadata/fgdc/xml/bcodmo_dataset_929825_v1_fgdc.xml https://erddap.bco-dmo.org/erddap/metadata/iso19115/xml/bcodmo_dataset_929825_v1_iso19115.xml https://erddap.bco-dmo.org/erddap/info/bcodmo_dataset_929825_v1/index.htmlTable https://www.bco-dmo.org/dataset/929825 (external link) https://erddap.bco-dmo.org/erddap/rss/bcodmo_dataset_929825_v1.rss https://erddap.bco-dmo.org/erddap/subscriptions/add.html?datasetID=bcodmo_dataset_929825_v1&showErrors=false&email= BCO-DMO bcodmo_dataset_929825_v1

 
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