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Metadata: OceanTeacher November2022 Lucy Stephenson Phytoplankton species counts in Atlantic Ocean surface waters during JR15001 (AMT25) September-November 2015
Abstract:
This dataset contains phytoplankton abundances, as cell numbers per taxa, collected in surface samples along a transect on the Atlantic Ocean, during the 25th Atlantic Meridional Transect cruise (AMT25/JR15001). The samples were collected between September and November 2015 at 67 CTD stations, at 2 m or 5 m depth along a transect of the Atlantic Ocean between 50° N and 50° S. For each sampling site, two samples of 200 mL were put in amber glass bottles; one fixed with neutral Lugol's iodine solution (2% final concentration) and the other with formaldehyde (2% final concentration). Observations were carried out with a Zeiss Axiovert 200 inverted microscope. Cells > 10 µm were counted in a 50 mL chamber, following the Utermöhl method (Utermöhl, 1958). Species from the following divisions/classes were identified and counted from Lugol's-fixed samples: Bacillariophyceae (Diatoms), Dinophyceae, separated into Autotrophic (ADinos) and Heterotrophic Dinoflagellates (HDinos), Prasinophyceae; furthermore, the genus Phaeocystis and filamentous cyanobacteria belonging to three genera were also quantified. For the formaldehyde bottle, only coccolithophore species > 10 µm were identified and enumerated (due to coccolith degradation in Lugol's-fixed samples).
Data holder:
British Oceanographic Data Centre
Use constraints:
No restrictions to public access
| Other details | ||
| Internal code | Internally assigned metadata identifier | 1644 |
| Title | The title is used to provide a brief and precise description of the dataset such as 'Date', 'Originating organisation/programme', 'Location' and 'Type of survey'. All acronyms and abbreviations should be reproduced in full. | OceanTeacher November2022 Lucy Stephenson Phytoplankton species counts in Atlantic Ocean surface waters during JR15001 (AMT25) September-November 2015 |
| File Identifier | The File Identifier is a code, preferably a GUID, that is globally unique and remains with the same metadata record even if the record is edited or transferred between portals or tools. | 6f269a509202a77b1ff927049f7ad2b5 |
| Resource Identifier | This is the code assigned by the data owner. | BODC8914356 |
| Resource type | The resource type will likely be a dataset but could also be a series (collection of datasets with a common specification) or a service. | dataset |
| Start date | This describes the date the resource starts. This may only be the year if month and day are not known | 2015-09-19 |
| End date | This describes the date the resource ends. This may only be the year if month and day are not known | 2015-11-02 |
| Spatial resolution | This describes the spatial resolution of the dataset or the spatial limitations of the service. | inapplicable |
| Frequency of updates | This describes the frequency with which the resource is modified or updated i.e. a monitoring programme that samples once per year has a frequency that is described as 'annually'. | continual |
| Abstract | The abstract provides a clear and brief statement of the content of the resource. | This dataset contains phytoplankton abundances, as cell numbers per taxa, collected in surface samples along a transect on the Atlantic Ocean, during the 25th Atlantic Meridional Transect cruise (AMT25/JR15001). The samples were collected between September and November 2015 at 67 CTD stations, at 2 m or 5 m depth along a transect of the Atlantic Ocean between 50° N and 50° S. For each sampling site, two samples of 200 mL were put in amber glass bottles; one fixed with neutral Lugol's iodine solution (2% final concentration) and the other with formaldehyde (2% final concentration). Observations were carried out with a Zeiss Axiovert 200 inverted microscope. Cells > 10 µm were counted in a 50 mL chamber, following the Utermöhl method (Utermöhl, 1958). Species from the following divisions/classes were identified and counted from Lugol's-fixed samples: Bacillariophyceae (Diatoms), Dinophyceae, separated into Autotrophic (ADinos) and Heterotrophic Dinoflagellates (HDinos), Prasinophyceae; furthermore, the genus Phaeocystis and filamentous cyanobacteria belonging to three genera were also quantified. For the formaldehyde bottle, only coccolithophore species > 10 µm were identified and enumerated (due to coccolith degradation in Lugol's-fixed samples). |
| Lineage | Lineage includes the background information, history of the sources of data, data quality statements and methods. | For each sampling site, two samples of 200 mL were put in amber glass bottles; one fixed with neutral Lugol's iodine solution (2% final concentration) and the other with formaldehyde (2% final concentration). Observations were carried out with a Zeiss Axiovert 200 inverted microscope. Cells > 10 µm were counted in a 50 mL chamber, following the Utermöhl method (Utermöhl, 1958). Species from the following divisions/classes were identified and counted from Lugol's-fixed samples: Bacillariophyceae (Diatoms), Dinophyceae, separated into Autotrophic (ADinos) and Heterotrophic Dinoflagellates (HDinos), Prasinophyceae; furthermore, the genus Phaeocystis and filamentous cyanobacteria belonging to three genera were also quantified. For the formaldehyde bottle, only coccolithophore species > 10 µm were identified and enumerated (due to coccolith degradation in Lugol's-fixed samples). |
| Related keywords | ||
| Keyword | General subject area(s) associated with the resource, uses multiple controlled vocabularies | Marine Environmental Data and Information Network |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Species distribution | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Phytoplankton taxonomic abundance in water bodies | |
| General subject area(s) associated with the resource, uses multiple controlled vocabularies | Biodiversity | |
| Geographical coverage | ||
| North | The northern-most limit of the data resource in decimal degrees | 49.48 |
| East | The eastern-most limit of the data resource in decimal degrees | -8.2306 |
| South | The southern-most limit of the data resource in decimal degrees | -9.8209 |
| West | The western-most limit of the data resource in decimal degrees | -65.5353 |
| Regional sea | water column boundary layer | |
| Responsible organisations | ||
| Role | The point of contact is person or organisation with responsibility for the creation and maintenance of the metadata for the resource. | pointOfContact |
| Organisation name | British Oceanographic Data Centre | |
| Position name | Data Manager | |
| enquiries@bodc.ac.uk | ||
| Role | The distributor is the person or organisation that distributes the resource. | distributor |
| Organisation name | British Oceanographic Data Centre | |
| Position name | Data Manager | |
| enquiries@bodc.ac.uk | ||
| Role | The originator is the person or organisation who created, collected or produced the resource. | originator |
| Organisation name | British Oceanographic Data Centre | |
| Position name | Data Manager | |
| enquiries@bodc.ac.uk | ||
| Role | The custodian is the person or organisation that accepts responsibility for the resource and ensures appropriate care and maintenance. If a dataset has been lodged with a Data Archive Centre for maintenance then this organisation is be entered here. | custodian |
| Organisation name | British Oceanographic Data Centre | |
| Position name | Data Manager | |
| enquiries@bodc.ac.uk | ||
| Resource locators | ||
| Locator URL | Web address (URL) that links to the resource | https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/eb752e17-cd14-3889-e053-6c86abc0ec59 |
| Locator name | Name of the web resource | Download data |
| Dataset constraints | ||
| 20 Limitations on Public Access - Access constraints | otherRestrictions | |
| 20 Limitations on Public Access - Other constraints | This states any limitations on access to the data and uses free text. | No restrictions to public access |
| 21 Conditions for Access and Use - Use limitation | This states any constraints on use of the data. Multiple conditions can be recorded for different parts of the data resource. If no conditions apply, then `No condtions apply` is recorded. This uses free text. | Data is freely available for research or commercial use providing that the originators are acknowledged in any publications produced. |
| Version info | ||
| Date of publication | The publication date of the resource or if previously unpublished the date that the resource was made publicly available via the MEDIN network. | 2022-11-22 |
| Date of last revision | The most recent date that the resource was revised. | 2022-11-21 |
| Date of creation | The date that the resource was created. | 2015-11-04 |
| Harvest date | The date which this record has been (re)harvested from the provider. | 2026-04-12 |
| Metadata date | The date when the content of this metadata record was last updated. | 2022-11-22 |
| Metadata standard name | The name of the metadata standard used to create this metadata | MEDIN Discovery metadata standard |
| Metadata standard version | The version of the MEDIN Discovery Metadata Standard used to create the metadata record | 2.3.8 |