cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15493/dea.mims.26052212
title: Pelagic Biomass Survey on the Africana Voyage 290, October 2016

description: The principal aim of the Pelagic Biomass Surveys is to obtain estimates of the total biomass of anchovy, sardine and west coast round herring and to obtain data on their population length frequency compositions, for input to the operational management procedure (OMP) for making Total Allowable Catch (TAC) recommendations for the following year. The surveys also obtain information on the environment and food regime impacting anchovy, sardine and west coast round herring around the coast, although recent surveys (~2009 onwards) have included much less environmental sampling than earlier years. The survey uses hydro-acoustics to estimate fish density and abundance, and midwater trawling to identify acoustic targets and to obtain length frequency and other biological data, and ichthyoplankton and environmental sampling are also conducted. The abundance and biomass estimates from these surveys are an essential input into the management process and serve as a scientific basis for the setting of TAC recommendations for the small pelagic fishery. The area covered by the pelagic surveys extends over much of the continental shelf around South Africa, and initially extended from Hondeklip Bay on the west coast to Port Alfred on the south coast, but has extended further east in some recent years. This is a collection of underway CUFUS samples along survey transects and collection of on-station CUFUS and CALVET net samples and hydrographic data (via a CTD attached to the CALVET net) along 21 survey transects, to assess abundance and distribution patterns of ichthyoplankton of small pelagic and other fish species and to collect data on water column structure.
DOI: 10.15493/dea.mims.605206
title: Analysed Nutrient data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise on the Algoa Voyage 244, November 2017

description: Analysed Nutrient data from the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) cruise on the Algoa Voyage 244, November 2017
description: Nutrient data for the Integrated Ecosystem Programme: Southern Benguela (IEP: SB): Nov 2017 from all stations. IEP:SB focuses on the biologically productive, cold waters of the Benguela Current Large Marine Ecosystem, which are inherently variable on short time-scales and responsive to changing weather patterns. The research aims to provide relevant, reliable and improved assessment of the ecosystem, in support of its effective management, preservation and conservation, so that South Africans can benefit from a healthy and well-functioning ocean environment. The overarching objective is to enhance understanding in process studies by assessing the importance, timing and magnitude of mechanisms and processes that influence the Southern Benguela ecosystem structure and functioning, including the climate variability.
description: Nitrate and silicate concentrations are to be measured on a Lachat QuickChem Flow Analysis platform following published auto-analysis protocols (Grasshoff 1976; Diamond 1994). The Lachat QuickChem Flow Autoanalysis platform configuration used has a detection limit of 0.1 µM. Nitrite concentrations were determined using the benchtop colorimetric Greiss reaction (Bendschneider and Robinson 1952; Parsons et al. 1984). Absorbance was measured using a Thermo Scientific Geneysis 30 Visible spectrophotometer at a wavelength of 543 nm. The method has a detection limit of 0.05 µM. Phosphate was determined using the Strickland and Parsons colourimetric method (Strickland and Parsons 1968). Samples and standards were measured using a Thermo Scientific Geneysis 30 Visible spectrophotometer at a wavelength of 880 nm. The method has a detection limit of 0.05 µM.
DOI: 10.15493/dea.mims.05112024
title: Processed CTD discrete observations from the Benguela Current Sources and Transport (BEST 1) on the Africana Voyage 105, June 1992

description: Processed Conductivity-Temperature-Depth (CTD) discrete data collected between 17 June and 04 July 1992, during voyage 105 on the FRS Africana, in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of Southern Africa.
description: Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected, between 16 June and 05 July 1992, during voyage 105 on the FRS Africana, in the Benguela Current Large Marine Ecosystem (BCLME) on the west coast of Southern Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.
description: Neil Brown MK3 and MK4 Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000. Temperature was converted from the IPTS-68 scale to the ITS-90 scale, and salinity was computed from conductivity measurements on the 1978 Practical Salinity Scale, according to UNESCO (1991) algorithms. UNESCO (1993) quality control procedures were applied to the data, and obvious erroneous values resulting from problems including electronic spikes, data collection in air, inadequate flow through the conductivity cell, among others, have been removed. Any additional calibrations or corrections have been specified in each data file, where applicable and available.
DOI: 10.15493/dea.mims.04112024
title: Processed CTD continuous observations from the Benguela Current Sources and Transport (BEST 1) on the Africana Voyage 105, June 1992

description: Processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 17 June and 04 July 1992, during voyage 105 on the FRS Africana, in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of Southern Africa.
description: Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected, between 16 June and 05 July 1992, during voyage 105 on the FRS Africana, in the Benguela Current Large Marine Ecosystem (BCLME) on the west coast of Southern Africa. Neil Brown MK3 and MK4  CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.
description: Neil Brown MK3 and MK4 Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000. Temperature was converted from the IPTS-68 scale to the ITS-90 scale, and salinity was computed from conductivity measurements on the 1978 Practical Salinity Scale, according to UNESCO (1991) algorithms. UNESCO (1993) quality control procedures were applied to the data, and obvious erroneous values resulting from problems including electronic spikes, data collection in air, inadequate flow through the conductivity cell, among others, have been removed. Any additional calibrations or corrections have been specified in each data file, where applicable and available.
DOI: 10.15493/dea.mims.03112024
title: Benguela Current Sources and Transport (BEST 1) on the Africana Voyage 105, June 1992

description: The Benguela Current Sources and Transport (BEST 1) was conducted on the Africana Voyage 105 from 16 June 1992 to 05 July 1992. The objectives of the survey was the quantification of the flux and Agulhas rings penetrating the South-East Atlantic and the influence of these on the shelf waters and resources of the Benguela system; the provision of a large-scale environmental time-series lasting for a continuous period of 18 months. This was used to validate processes inferred from satellite imagery, thereby enhancing utility of the latter for fisheries environmental monitoring as needed for fisheries research; determination of the distribution and abundance of rock lobster larvae in the South-East Atlantic, to supplement the existing data which were collected in April 1989. This formed an integral part of the Institute's rock lobster research (West Coast rock lobster spend at least one year traversing the South Atlantic gyre before settling on the West Coast); water column and sediment geochemistry on a transect between the coast and the 1000m isobath along 30°27'S to provide an indication of the historical record of anoxia in this part of the Benguela system.
DOI: 10.15468/dl.wv4s5j
title: Occurrence Download

description: A dataset containing 462 species occurrences available in GBIF matching the query:
{
 "and" : [
 "CoordinateUncertaintyInMeters 0.0-1000.0",
 "Country is one of (Spain, Portugal)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Arion lusitanicus",
 "Year 1900-2025"
 ]
}

 The dataset includes 462 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0045420-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15493/dea.mims.08112024
title: Processed CTD discrete observations from the South Coast Demersal Inshore Biomass Survey on the Africana Voyage 106, September 1992

description: Processed Conductivity-Temperature-Depth (CTD) discrete data collected between 02 and 23 September 1992, during voyage 106 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south coast of Southern Africa.
description: Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected, between 02 September and 23 September 1992, during voyage 106 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) on the south coast of Southern Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.
description: Neil Brown MK3 and MK4 Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000. Temperature was converted from the IPTS-68 scale to the ITS-90 scale, and salinity was computed from conductivity measurements on the 1978 Practical Salinity Scale, according to UNESCO (1991) algorithms. UNESCO (1993) quality control procedures were applied to the data, and obvious erroneous values resulting from problems including electronic spikes, data collection in air, inadequate flow through the conductivity cell, among others, have been removed. Any additional calibrations or corrections have been specified in each data file, where applicable and available.
DOI: 10.15468/dl.aeyr8e
title: Occurrence Download

description: A dataset containing 2443 species occurrences available in GBIF matching the query:
{
 "and" : [
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "TaxonKey is Minuca pugnax"
 ]
}

 The dataset includes 2443 records from 27 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0045422-250827131500795/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15493/dea.mims.07112024
title: Processed CTD continuous observations from the South Coast Demersal Inshore Biomass Survey on the Africana Voyage 106, September 1992

description: Processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected between 02 and 23 September 1992, during voyage 106 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south coast of Southern Africa.
description: Here we present processed downcast Conductivity-Temperature-Depth (CTD) continuous data collected, between 02 September and 23 September 1992, during voyage 106 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) on the south coast of Southern Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.
description: Neil Brown MK3 and MK4 Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000. Temperature was converted from the IPTS-68 scale to the ITS-90 scale, and salinity was computed from conductivity measurements on the 1978 Practical Salinity Scale, according to UNESCO (1991) algorithms. UNESCO (1993) quality control procedures were applied to the data, and obvious erroneous values resulting from problems including electronic spikes, data collection in air, inadequate flow through the conductivity cell, among others, have been removed. Any additional calibrations or corrections have been specified in each data file, where applicable and available.
DOI: 10.15493/dea.mims.06112024
title: South Coast Demersal Inshore Biomass Survey on the Africana Voyage 106, September 1992

description: The South Coast Demersal Inshore Biomass Survey was conducted on the Africana Voyage 106 from 02 to 23 September 1992.  The objectives of the survey were to conduct a stratified bottom trawl survey to assess the biomass, abundance and distribution of hake, sole, horse mackerel, squid and other trawl species with emphasis on 'inshore' fishing areas for recruitment estimates; to investigate the hydrology  and current profiles of the South Coast and to relate this to the distribution pf the major demersal trawl species. This included five transects extending from specified areas in the South Coast and approximately perpendicular to the coastline out towards the main stream of the Agulhas Current. A 'mini' CTD transect grid in the Cape St Francis area was also done; to do a selected number of midwater trawls to investigate the distribution and abundance of deep-water fauna; to conduct routine biological and length frequency sampling of demersal species; to sample squid intensively to establish their distribution and abundance on the South Coast. quid gonads to be collected for histological research; to collect live sole for land-based experiments as well as sole gonads for histology; to sample for squid and other fish eggs and larvae using bongo nets; collection of rare fish samples, fish identification and photography; to obtain species specific data on copepod distribution and to conduct copepod grazing experiments; and the collection of the following specific material for land-based research: snoek gut content, White Stumpnose and other line fish, rocks,  south coast rock lobster, sharks & rays, sponge crabs, kob, and any other unusual specimens.
DOI: 10.15493/dea.mims.17112024
title: Processed CTD discrete observations from the West Coast Hake Biomass Survey on the Africana Voyage 109, January 1993

description: Processed Conductivity-Temperature-Depth (CTD) discrete data collected between 9 January and 08 February 1993, during voyage 109 on the FRS Africana, in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of Southern Africa.
description: Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected, between 19 January and 08 February 1993, during voyage 109 on the FRS Africana, in the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of Southern Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.
description: Neil Brown MK3 and MK4 Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000. Temperature was converted from the IPTS-68 scale to the ITS-90 scale, and salinity was computed from conductivity measurements on the 1978 Practical Salinity Scale, according to UNESCO (1991) algorithms. UNESCO (1993) quality control procedures were applied to the data, and obvious erroneous values resulting from problems including electronic spikes, data collection in air, inadequate flow through the conductivity cell, among others, have been removed. Any additional calibrations or corrections have been specified in each data file, where applicable and available.
DOI: 10.15493/dea.mims.11112024
title: Processed CTD discrete observations from the Horse Mackerel Hydroacoustic Survey on the Africana Voyage 107, October 1992

description: Processed Conductivity-Temperature-Depth (CTD) discrete data collected between 08 and 21 October 1992, during voyage 107 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south coast of Southern Africa.
description: Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected, between 07 October and 23 October 1992, during voyage 107 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) on the south coast of Southern Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.
description: Neil Brown MK3 and MK4 Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000. Temperature was converted from the IPTS-68 scale to the ITS-90 scale, and salinity was computed from conductivity measurements on the 1978 Practical Salinity Scale, according to UNESCO (1991) algorithms. UNESCO (1993) quality control procedures were applied to the data, and obvious erroneous values resulting from problems including electronic spikes, data collection in air, inadequate flow through the conductivity cell, among others, have been removed. Any additional calibrations or corrections have been specified in each data file, where applicable and available.
DOI: 10.15468/dl.w5juhx
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Flacourtia jangomas",
 "Country is Madagascar",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0045421-250827131500795/datasets/export for details.
DOI: 10.15468/dl.5ud5a3
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Flacourtia jangomas",
 "Country is Maldives",
 "HasCoordinate is true"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0045423-250827131500795/datasets/export for details.
DOI: 10.15493/dea.mims.14112024
title: Processed CTD discrete observations from the Pelagic Biomass Survey on the Africana Voyage 108, November 1992

description: Processed Conductivity-Temperature-Depth (CTD) discrete data collected between 05 November and 02 December 1992, during voyage 108 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south coast of Southern Africa and the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of Southern Africa.
description: Here we present processed Conductivity-Temperature-Depth (CTD) discrete data from the upcast collected, between 05 November and 02 December 1992, during voyage 108 on the FRS Africana, in the Agulhas Current Large Marine Ecosystem (ACLME) region on the south coast of Southern Africa and the Benguela Current Large Marine Ecosystem (BCLME) region on the west coast of Southern Africa. Neil Brown MK3 and MK4 CTD instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000.
description: Neil Brown MK3 and MK4 Conductivity-Temperature-Depth (CTD) instruments were used to measure pressure, temperature and conductivity through the water column during research and monitoring cruises between 1983 and 2000. Temperature was converted from the IPTS-68 scale to the ITS-90 scale, and salinity was computed from conductivity measurements on the 1978 Practical Salinity Scale, according to UNESCO (1991) algorithms. UNESCO (1993) quality control procedures were applied to the data, and obvious erroneous values resulting from problems including electronic spikes, data collection in air, inadequate flow through the conductivity cell, among others, have been removed. Any additional calibrations or corrections have been specified in each data file, where applicable and available.
DOI: 10.15493/dea.mims.250121-13
title: St Helena Bay Monitoring Line (SHBML) on the Africana Voyage 275, August 2011

description: This St Helena Bay Monitoring Line (SHBML) cruise was conducted on the Africana Voyage 275 from 1 to 5 August 2011. This is a long-term monitoring line conducted off the coast of Elands/St Helena Bay on the west coast of South Africa. SHBML started in 2000 as a BENEFIT-driven project on "shipboard monitoring" which linked with similar lines run in Namibia and Angola. The aims were to obtain seasonal and interannual information on the hydrology and productivity of the area. It was incorporated under the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) in 2013 consolidating a long-term, multi-decadal time-series (from 1951 onward) of information for this important region and has continued monitoring in the form of the IEP:SB. The programme is a multi-disciplinary, collaborative and capacity building platform undertaking relevant science, including updating technology, with the aim to develop ecosystem indicators that can be used to effectively monitor and understand the Southern Benguela. These include physical, chemical, planktonic, microbial, seabird, marine mammal, benthic and pollution (plastic) ecosystem indicators as required by ecosystem-based management regarding the following priorities: ocean warming, ocean acidification, trophic functioning, pollution and water quality. It is on-going monitoring programme.
DOI: 10.15493/dea.mims.26000009
title: St Helena Bay Monitoring Line (SHBML) on the Africana Voyage 249, January 2009

description: This St Helena Bay Monitoring Line (SHBML) cruise was conducted on the Africana Voyage 249 in January 2009. This is a long-term monitoring line conducted off the coast of Elands/St Helena Bay on the west coast of South Africa. SHBML started in 2000 as a BENEFIT-driven project on "shipboard monitoring" which linked with similar lines run in Namibia and Angola. The aims were to obtain seasonal and interannual information on the hydrology and productivity of the area. It was incorporated under the Integrated Ecosystem Programme: Southern Benguela (IEP:SB) in 2013 consolidating a long-term, multi-decadal time-series (from 1951 onward) of information for this important region and has continued monitoring in the form of the IEP:SB. The programme is a multi-disciplinary, collaborative and capacity building platform undertaking relevant science, including updating technology, with the aim to develop ecosystem indicators that can be used to effectively monitor and understand the Southern Benguela. These include physical, chemical, planktonic, microbial, seabird, marine mammal, benthic and pollution (plastic) ecosystem indicators as required by ecosystem-based management regarding the following priorities: ocean warming, ocean acidification, trophic functioning, pollution and water quality. It is on-going monitoring programme.