cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.13130/rd_unimi/ui9ecn/zzmcvy
title: Dicembre_1880_Pagina_046.jpg

description: Bulletin of 1880/12/12
DOI: 10.13130/rd_unimi/ui9ecn/u4xetw
title: Dicembre_1880_Pagina_047.jpg

description: Bulletin of 1880/12/12
DOI: 10.13130/rd_unimi/ui9ecn/0cuntb
title: Dicembre_1880_Pagina_049.jpg

description: Bulletin of 1880/12/13
DOI: 10.13130/rd_unimi/ui9ecn/ia1hid
title: Dicembre_1880_Pagina_048.jpg

description: Bulletin of 1880/12/12
DOI: 10.13130/rd_unimi/ui9ecn/warabu
title: Dicembre_1880_Pagina_050.jpg

description: Bulletin of 1880/12/13
DOI: 10.13130/rd_unimi/ui9ecn/kdfyrb
title: Dicembre_1880_Pagina_051.jpg

description: Bulletin of 1880/12/13
DOI: 10.13130/rd_unimi/ui9ecn/uzecsg
title: Dicembre_1880_Pagina_052.jpg

description: Bulletin of 1880/12/13
DOI: 10.13130/rd_unimi/ui9ecn/nuvpq6
title: Dicembre_1880_Pagina_053.jpg

description: Bulletin of 1880/12/14
DOI: 10.13130/rd_unimi/ui9ecn/ujrr6h
title: Dicembre_1880_Pagina_054.jpg

description: Bulletin of 1880/12/14
DOI: 10.13130/rd_unimi/ui9ecn/ciunht
title: Dicembre_1880_Pagina_055.jpg

description: Bulletin of 1880/12/14
DOI: 10.13130/rd_unimi/ui9ecn/phcjq7
title: Dicembre_1880_Pagina_056.jpg

description: Bulletin of 1880/12/14
DOI: 10.13130/rd_unimi/ui9ecn/71hkfi
title: Dicembre_1880_Pagina_057.jpg

description: Bulletin of 1880/12/15
DOI: 10.15468/dl.5zg3mb
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{"type":"and","predicates":[{"type":"within","geometry":"POLYGON ((101.589 0.876184, 101.518729 0.870617, 101.450189 0.854051, 101.385067 0.826895, 101.324969 0.789819, 101.271373 0.743734, 101.225599 0.689777, 101.188774 0.629275, 101.161806 0.563719, 101.145356 0.494724, 101.13983 0.423987, 101.145364 0.353251, 101.161821 0.284257, 101.188796 0.218704, 101.225624 0.158206, 101.271399 0.104252, 101.324993 0.058172, 101.385088 0.021099, 101.450204 -0.006054, 101.518737 -0.022618, 101.589 -0.028185, 101.659263 -0.022618, 101.727796 -0.006054, 101.792912 0.021099, 101.853007 0.058172, 101.906601 0.104252, 101.952376 0.158206, 101.989204 0.218704, 102.016179 0.284257, 102.032636 0.353251, 102.03817 0.423987, 102.032644 0.494724, 102.016194 0.563719, 101.989226 0.629275, 101.952401 0.689777, 101.906627 0.743734, 101.853031 0.789819, 101.792933 0.826895, 101.727811 0.854051, 101.659271 0.870617, 101.589 0.876184))"},{"type":"equals","key":"CLASS_KEY","value":"212","matchCase":false},{"type":"greaterThanOrEquals","key":"YEAR","value":"2015","matchCase":false},{"type":"not","predicate":{"type":"in","key":"BASIS_OF_RECORD","values":["MATERIAL_CITATION","MATERIAL_SAMPLE","PRESERVED_SPECIMEN"],"matchCase":false}},{"type":"lessThanOrEquals","key":"COORDINATE_UNCERTAINTY_IN_METERS","value":"10000","matchCase":false},{"type":"equals","key":"LICENSE","value":"CC BY 4.0","matchCase":false}]}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0040409-251120083545085/datasets/export for details.
DOI: 10.13130/rd_unimi/ui9ecn/g9c174
title: Dicembre_1880_Pagina_058.jpg

description: Bulletin of 1880/12/15
DOI: 10.13130/rd_unimi/ui9ecn/a6rsew
title: Dicembre_1880_Pagina_059.jpg

description: Bulletin of 1880/12/15
DOI: 10.13130/rd_unimi/ui9ecn/8hsyvm
title: Dicembre_1880_Pagina_060.jpg

description: Bulletin of 1880/12/15
DOI: 10.13130/rd_unimi/ui9ecn/2blknu
title: Dicembre_1880_Pagina_061.jpg

description: Bulletin of 1880/12/16
DOI: 10.13130/rd_unimi/ui9ecn/rqjadz
title: Dicembre_1880_Pagina_062.jpg

description: Bulletin of 1880/12/16
DOI: 10.13130/rd_unimi/ui9ecn/s9iddj
title: Dicembre_1880_Pagina_064.jpg

description: Bulletin of 1880/12/16
DOI: 10.13130/rd_unimi/ui9ecn/sqgnek
title: Dicembre_1880_Pagina_063.jpg

description: Bulletin of 1880/12/16
DOI: 10.13130/rd_unimi/ui9ecn/sspq6z
title: Dicembre_1880_Pagina_065.jpg

description: Bulletin of 1880/12/17
DOI: 10.15468/dl.wg26gd
title: Occurrence Download

description: A dataset containing 209544 species occurrences available in GBIF matching the query:
{
 "and" : [
 "SpeciesKey is one of (Campylorhynchus brunneicapillus)",
 "BasisOfRecord is one of (Human Observation, Observation, Occurrence evidence)",
 "Year is greater than or equal to 1951",
 "Year is less than or equal to 2024",
 "Month is greater than or equal to April",
 "Month is less than or equal to July",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present"
 ]
}

 The dataset includes 209544 records from 22 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0040376-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.13130/rd_unimi/ui9ecn/givye3
title: Dicembre_1880_Pagina_066.jpg

description: Bulletin of 1880/12/17
DOI: 10.13130/rd_unimi/ui9ecn/kogq3b
title: Dicembre_1880_Pagina_067.jpg

description: Bulletin of 1880/12/17
DOI: 10.13130/rd_unimi/ui9ecn/wmsqd5
title: Dicembre_1880_Pagina_068.jpg

description: Bulletin of 1880/12/17
DOI: 10.13130/rd_unimi/ui9ecn/eatseh
title: Dicembre_1880_Pagina_069.jpg

description: Bulletin of 1880/12/18
DOI: 10.15468/dl.ezzua3
title: Occurrence Download

description: A dataset containing 723 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Lumbricillus rivalis",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 723 records from 14 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0040410-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.13130/rd_unimi/ui9ecn/uepayr
title: Dicembre_1880_Pagina_070.jpg

description: Bulletin of 1880/12/18
DOI: 10.13130/rd_unimi/ui9ecn/eu2bvm
title: Dicembre_1880_Pagina_071.jpg

description: Bulletin of 1880/12/18
DOI: 10.13130/rd_unimi/ui9ecn/ijcauv
title: Dicembre_1880_Pagina_072.jpg

description: Bulletin of 1880/12/18
DOI: 10.13130/rd_unimi/ui9ecn/jz53pd
title: Dicembre_1880_Pagina_073.jpg

description: Bulletin of 1880/12/19
DOI: 10.13130/rd_unimi/ui9ecn/hdyaqr
title: Dicembre_1880_Pagina_074.jpg

description: Bulletin of 1880/12/19
DOI: 10.13130/rd_unimi/ui9ecn/l7j5xl
title: Dicembre_1880_Pagina_075.jpg

description: Bulletin of 1880/12/19
DOI: 10.13130/rd_unimi/ui9ecn/axuarg
title: Dicembre_1880_Pagina_076.jpg

description: Bulletin of 1880/12/19
DOI: 10.13130/rd_unimi/ui9ecn/kxu6w2
title: Dicembre_1880_Pagina_077.jpg

description: Bulletin of 1880/12/20
DOI: 10.13130/rd_unimi/ui9ecn/v7rk1d
title: Dicembre_1880_Pagina_078.jpg

description: Bulletin of 1880/12/20
DOI: 10.13130/rd_unimi/ui9ecn/wyaolp
title: Dicembre_1880_Pagina_079.jpg

description: Bulletin of 1880/12/20
DOI: 10.13130/rd_unimi/ui9ecn/nvfyt1
title: Dicembre_1880_Pagina_080.jpg

description: Bulletin of 1880/12/20
DOI: 10.13130/rd_unimi/ui9ecn/dec0k2
title: Dicembre_1880_Pagina_081.jpg

description: Bulletin of 1880/12/21
DOI: 10.13130/rd_unimi/ui9ecn/f9ycdj
title: Dicembre_1880_Pagina_082.jpg

description: Bulletin of 1880/12/21
DOI: 10.13130/rd_unimi/ui9ecn/rbober
title: Dicembre_1880_Pagina_083.jpg

description: Bulletin of 1880/12/21
DOI: 10.13130/rd_unimi/ui9ecn/osx9x0
title: Dicembre_1880_Pagina_084.jpg

description: Bulletin of 1880/12/21
DOI: 10.13130/rd_unimi/ui9ecn/47rsnv
title: Dicembre_1880_Pagina_085.jpg

description: Bulletin of 1880/12/22
DOI: 10.13130/rd_unimi/ui9ecn/mjdr2y
title: Dicembre_1880_Pagina_087.jpg

description: Bulletin of 1880/12/22
DOI: 10.13130/rd_unimi/ui9ecn/qnhhk5
title: Dicembre_1880_Pagina_086.jpg

description: Bulletin of 1880/12/22
DOI: 10.13130/rd_unimi/ui9ecn/okqw0y
title: Dicembre_1880_Pagina_088.jpg

description: Bulletin of 1880/12/22
DOI: 10.13130/rd_unimi/ui9ecn/uwqvxt
title: Dicembre_1880_Pagina_089.jpg

description: Bulletin of 1880/12/23
DOI: 10.13130/rd_unimi/ui9ecn/fyhpvv
title: Dicembre_1880_Pagina_090.jpg

description: Bulletin of 1880/12/23
DOI: 10.13130/rd_unimi/ui9ecn/nh3drk
title: Dicembre_1880_Pagina_091.jpg

description: Bulletin of 1880/12/23
DOI: 10.13130/rd_unimi/ui9ecn/2av91n
title: Dicembre_1880_Pagina_092.jpg

description: Bulletin of 1880/12/23
DOI: 10.13130/rd_unimi/ui9ecn/1k1k4s
title: Dicembre_1880_Pagina_093.jpg

description: Bulletin of 1880/12/24
DOI: 10.13130/rd_unimi/ui9ecn/ff837j
title: Dicembre_1880_Pagina_094.jpg

description: Bulletin of 1880/12/24
DOI: 10.13130/rd_unimi/ui9ecn/e5rek0
title: Dicembre_1880_Pagina_095.jpg

description: Bulletin of 1880/12/24
DOI: 10.13130/rd_unimi/ui9ecn/wirvsj
title: Dicembre_1880_Pagina_096.jpg

description: Bulletin of 1880/12/24
DOI: 10.13130/rd_unimi/ui9ecn/zfpemr
title: Dicembre_1880_Pagina_097.jpg

description: Bulletin of 1880/12/25
DOI: 10.13130/rd_unimi/ui9ecn/lrpemz
title: Dicembre_1880_Pagina_098.jpg

description: Bulletin of 1880/12/25
DOI: 10.15468/dl.j5h92r
title: Occurrence Download

description: A dataset containing 20347 species occurrences available in GBIF matching the query:
{
 "and" : [
 "DatasetKey is iNaturalist Research-grade Observations",
 "Issue is Continent derived from coordinates",
 "OccurrenceStatus is Present",
 "PublishingOrg is 28eb1a3f-1c15-4a95-931a-4af90ecb574d",
 "TaxonKey is Crocus"
 ]
}

 The dataset includes 20347 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0040411-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.13130/rd_unimi/ui9ecn/3ltpuv
title: Dicembre_1880_Pagina_099.jpg

description: Bulletin of 1880/12/25
DOI: 10.13130/rd_unimi/ui9ecn/6j8urr
title: Dicembre_1880_Pagina_100.jpg

description: Bulletin of 1880/12/25
DOI: 10.13130/rd_unimi/ui9ecn/rauhyo
title: Dicembre_1880_Pagina_101.jpg

description: Bulletin of 1880/12/26
DOI: 10.13130/rd_unimi/ui9ecn/uzks6w
title: Dicembre_1880_Pagina_102.jpg

description: Bulletin of 1880/12/26
DOI: 10.13130/rd_unimi/ui9ecn/hqldvt
title: Dicembre_1880_Pagina_103.jpg

description: Bulletin of 1880/12/26
DOI: 10.13130/rd_unimi/ui9ecn/qvr5sk
title: Dicembre_1880_Pagina_104.jpg

description: Bulletin of 1880/12/26
DOI: 10.13130/rd_unimi/ui9ecn/zohdwf
title: Dicembre_1880_Pagina_105.jpg

description: Bulletin of 1880/12/27
DOI: 10.13130/rd_unimi/ui9ecn/u9nyeq
title: Dicembre_1880_Pagina_106.jpg

description: Bulletin of 1880/12/27
DOI: 10.13130/rd_unimi/ui9ecn/bktzfd
title: Dicembre_1880_Pagina_107.jpg

description: Bulletin of 1880/12/27
DOI: 10.13130/rd_unimi/ui9ecn/e52d8i
title: Dicembre_1880_Pagina_108.jpg

description: Bulletin of 1880/12/27
DOI: 10.13130/rd_unimi/ui9ecn/kvie92
title: Dicembre_1880_Pagina_109.jpg

description: Bulletin of 1880/12/28
DOI: 10.13130/rd_unimi/ui9ecn/iypvgr
title: Dicembre_1880_Pagina_110.jpg

description: Bulletin of 1880/12/28
DOI: 10.13130/rd_unimi/ui9ecn/2ihc72
title: Dicembre_1880_Pagina_111.jpg

description: Bulletin of 1880/12/28
DOI: 10.13130/rd_unimi/ui9ecn/xocrxd
title: Dicembre_1880_Pagina_112.jpg

description: Bulletin of 1880/12/28
DOI: 10.13130/rd_unimi/ui9ecn/tlgvt4
title: Dicembre_1880_Pagina_113.jpg

description: Bulletin of 1880/12/29
DOI: 10.13130/rd_unimi/ui9ecn/cwhhlw
title: Dicembre_1880_Pagina_114.jpg

description: Bulletin of 1880/12/29
DOI: 10.13130/rd_unimi/ui9ecn/h6puta
title: Dicembre_1880_Pagina_115.jpg

description: Bulletin of 1880/12/29
DOI: 10.13130/rd_unimi/ui9ecn/30bzxv
title: Dicembre_1880_Pagina_116.jpg

description: Bulletin of 1880/12/29
DOI: 10.15468/dl.vjbvmz
title: Occurrence Download

description: A dataset containing 245 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Acacia erioloba"
 ]
}

 The dataset includes 245 records from 18 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0040412-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.13130/rd_unimi/ui9ecn/be50ug
title: Dicembre_1880_Pagina_117.jpg

description: Bulletin of 1880/12/30
DOI: 10.13130/rd_unimi/ui9ecn/nkurw3
title: Dicembre_1880_Pagina_118.jpg

description: Bulletin of 1880/12/30
DOI: 10.13130/rd_unimi/ui9ecn/ovkomd
title: Dicembre_1880_Pagina_119.jpg

description: Bulletin of 1880/12/30
DOI: 10.13130/rd_unimi/ui9ecn/0rbbyh
title: Dicembre_1880_Pagina_120.jpg

description: Bulletin of 1880/12/30
DOI: 10.13130/rd_unimi/ui9ecn/ttahuw
title: Dicembre_1880_Pagina_121.jpg

description: Bulletin of 1880/12/31
DOI: 10.13130/rd_unimi/ui9ecn/64oue1
title: Dicembre_1880_Pagina_122.jpg

description: Bulletin of 1880/12/31
DOI: 10.13130/rd_unimi/ui9ecn/f2bbc7
title: Dicembre_1880_Pagina_123.jpg

description: Bulletin of 1880/12/31
DOI: 10.13130/rd_unimi/ui9ecn/41nxog
title: Dicembre_1880_Pagina_124.jpg

description: Bulletin of 1880/12/31
DOI: 10.13130/rd_unimi/ui9ecn/pv2j0i
title: Febbraio_1880_Pagina_001.jpg

description: Bulletin of 1880/02/01
DOI: 10.13130/rd_unimi/ui9ecn/h0ipr6
title: Febbraio_1880_Pagina_002.jpg

description: Bulletin of 1880/02/01
DOI: 10.13130/rd_unimi/ui9ecn/odktub
title: Febbraio_1880_Pagina_003.jpg

description: Bulletin of 1880/02/01
DOI: 10.13130/rd_unimi/ui9ecn/nibwg9
title: Febbraio_1880_Pagina_004.jpg

description: Bulletin of 1880/02/01
DOI: 10.13130/rd_unimi/ui9ecn/slmq1n
title: Febbraio_1880_Pagina_005.jpg

description: Bulletin of 1880/02/02
DOI: 10.13130/rd_unimi/ui9ecn/huloar
title: Febbraio_1880_Pagina_006.jpg

description: Bulletin of 1880/02/02
DOI: 10.13130/rd_unimi/ui9ecn/dqezgc
title: Febbraio_1880_Pagina_007.jpg

description: Bulletin of 1880/02/02
DOI: 10.15468/dl.vqv3yf
title: Occurrence Download

description: A dataset containing 1724 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Geometry POLYGON((-8.64837 37.59175,-8.63608 37.59175,-8.63608 37.60241,-8.64837 37.60241,-8.64837 37.59175))",
 "OccurrenceStatus is Present"
 ]
}

 The dataset includes 1724 records from 26 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0040413-251120083545085/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.13130/rd_unimi/ui9ecn/ke8xli
title: Febbraio_1880_Pagina_008.jpg

description: Bulletin of 1880/02/02
DOI: 10.13130/rd_unimi/ui9ecn/5prxxy
title: Febbraio_1880_Pagina_009.jpg

description: Bulletin of 1880/02/03
DOI: 10.17026/ar/0uxl5l
title: PAN-00118588 - coin/coin-related, sceatta porcupine

description: &lt;p&gt;This find is registered at Portable Antiquities of the Netherlands with number PAN-00118588&lt;/p&gt;
description: Modified: 2025-10-21T08:43:08+02:00
DOI: 10.13130/rd_unimi/ui9ecn/tezacl
title: Febbraio_1880_Pagina_010.jpg

description: Bulletin of 1880/02/03
DOI: 10.13130/rd_unimi/ui9ecn/jz8qs7
title: Febbraio_1880_Pagina_011.jpg

description: Bulletin of 1880/02/03
DOI: 10.13130/rd_unimi/ui9ecn/9girbs
title: Febbraio_1880_Pagina_012.jpg

description: Bulletin of 1880/02/03
DOI: 10.13130/rd_unimi/ui9ecn/jrjrhm
title: Febbraio_1880_Pagina_013.jpg

description: Bulletin of 1880/02/04
DOI: 10.13130/rd_unimi/ui9ecn/gofczd
title: Febbraio_1880_Pagina_014.jpg

description: Bulletin of 1880/02/04
DOI: 10.13130/rd_unimi/ui9ecn/kbutck
title: Febbraio_1880_Pagina_015.jpg

description: Bulletin of 1880/02/04
DOI: 10.13130/rd_unimi/ui9ecn/qkh0ox
title: Febbraio_1880_Pagina_016.jpg

description: Bulletin of 1880/02/04
DOI: 10.13130/rd_unimi/ui9ecn/z8gvbx
title: Febbraio_1880_Pagina_017.jpg

description: Bulletin of 1880/02/05
DOI: 10.13130/rd_unimi/ui9ecn/a0spsh
title: Febbraio_1880_Pagina_018.jpg

description: Bulletin of 1880/02/05
DOI: 10.13130/rd_unimi/ui9ecn/npzxkv
title: Febbraio_1880_Pagina_019.jpg

description: Bulletin of 1880/02/05
DOI: 10.13130/rd_unimi/ui9ecn/mpupu3
title: Febbraio_1880_Pagina_020.jpg

description: Bulletin of 1880/02/05
DOI: 10.13130/rd_unimi/ui9ecn/dwxkqn
title: Febbraio_1880_Pagina_021.jpg

description: Bulletin of 1880/02/06
DOI: 10.13130/rd_unimi/ui9ecn/7c6mhz
title: Febbraio_1880_Pagina_022.jpg

description: Bulletin of 1880/02/06
DOI: 10.13130/rd_unimi/ui9ecn/3ixflr
title: Febbraio_1880_Pagina_023.jpg

description: Bulletin of 1880/02/06
DOI: 10.13130/rd_unimi/ui9ecn/9ntxip
title: Febbraio_1880_Pagina_024.jpg

description: Bulletin of 1880/02/06
DOI: 10.15493/smcri.26112025
title: DOC from BioSCape

description: The biodiverse and rapidly changing Greater Cape Floristic Region (GCFR) of southern Africa is outlined by coastal bays that receive dissolved organic matter (DOM) from rivers draining complex catchments composed of natural, agricultural, and urban land classes. As part of NASA's BioSCape field campaign (October-November 2023), we characterized the optical properties of three GCFR coastal bays (St. Helena, Walker, and Algoa) and four inland systems (Rietvlei wetland, Zeekoevlei lake, Theewaterskloof dam, and Klein River Estuary) in relation to carbon cycling. Measurements of the optical properties of colored DOM (CDOM), including absorption at 300 nm (ag300), spectral slope (S275-295), and fluorescence, highlighted the bio-optical complexity associated with terrestrial influences from contrasting watersheds, urban disturbances, biological activity, and rapid transformations along this dynamic coastline. CDOM in the coastal bays was characterized by an order of magnitude lower ag300 (0.5 – 2.8 m-1) and considerably higher S275-295 (0.020 – 0.031 nm-1) compared to upstream waters (25 – 71 m-1 and 0.012 – 0.019 nm-1, respectively), suggesting intense biological production and/or photochemical degradation. Coastal DOM was mostly (>75%) composed of protein-like fluorescent products, indicative of bacterial utilization, while inland DOM was mostly composed of humic and highly aromatic materials. Satellite retrievals, using OLCI and MSI imagery, captured the disproportionate yet ephemeral impact of extreme events – intense riverine discharge following extensive periods of drought – on coastal CDOM plumes, and revealed that seasonal hydrological cycles, catchment biodiversity, and human activity are the primary drivers of biogeochemical variability along this globally significant, coastal biodiversity hotspot.
DOI: 10.13130/rd_unimi/ui9ecn/ytbcei
title: Febbraio_1880_Pagina_025.jpg

description: Bulletin of 1880/02/07
DOI: 10.13130/rd_unimi/ui9ecn/svht1u
title: Febbraio_1880_Pagina_026.jpg

description: Bulletin of 1880/02/07
DOI: 10.15493/smcri.27112025
title: Phytoplankton dynamics in three distinct embayments along the South African coastline

description: The South African coast is bordered by eastern and western boundary currents, from east to west the coastline hosts tropical, subtropical, warm temperate and cool temperate biogeographic regions with the two phylogenetic breaks. The coastal phytoplankton community structure in three spatially distinct embayments was investigated during austral spring. In this study we captured the daily variability in three bays contrasted by three different oceanographic upwelling processes influencing the phytoplankton community. Advection events in St Helena and Algoa Bay and the aftereffects of an upwelling event in Walker Bay were a prior processes to each sampling campaign. The hydrological properties in Algoa Bay and Walker Bay reflected warm, well oxygenated waters and minor variations in pH and salinity while St Helena Bay exhibited noticeable stratification, decreases in pH, oxygen depletion and clear day-to-day variability. Algoa Bay had significant differences in SiO44- and NH4+ between sampling dates while Walker Bay displayed more stable conditions with only NO2- showing a significant difference. Contrastingly, St Helena Bay showed the most pronounced variability, with NOxN, NO2- and PO43- all differing significantly. The dominant community structure was broadly comparable between the bays, however, site-specific assemblages and day-to-day variability was evident. Diel oxygen dynamics highlighted bay specific differences in short term metabolic activity and phytoplankton functioning. Overall, we found common genera across all three bays, including Chaetoceros, Leptocylindrus, Rhizosolenia, Protoperidinium and Tripos. Each bay displayed alternative values of diversity and community change influenced by varying hydrological and biogeochemical factors. These factors were all broadly governed by larger scale oceanographic and atmospheric forcing.
DOI: 10.13130/rd_unimi/ui9ecn/9r8xto
title: Febbraio_1880_Pagina_027.jpg

description: Bulletin of 1880/02/07
DOI: 10.15493/smcri.25112025
title: Phytoplankton collection methods in three bays

description: Phytoplankton are diverse unicellular organisms vital for regulating and maintaining aquatic food webs and global biogeochemical processes. Understanding the phytoplankton diversity improves monitoring and the sustainable use of the environment. Numerous methods exist for the collection of phytoplankton, but the lack of cross-method comparisons makes it difficult to compare results across space and time. This study provided insights into the effects of collection techniques on phytoplankton enumeration across three spatially distinct bays. Water samples (grab) and two different net mesh sizes, i.e. 20 µm and 55 µm nets and vertical and horizontal net tows, were used to test their effectiveness for phytoplankton community assessment. We found that the method of collection affects the species count, abundance, evenness, dominant and rare taxa captured with our study dominated by diatoms followed by dinoflagellates, flagellates and silicoflagellates. The strengths and limitations of each collection method demonstrate how methodological biases can influence the magnitude and resolution of phytoplankton community characterization. The results revealed that geographic location is a dominant driver in phytoplankton community composition and structure, however, sampling collection methods consistently affect which taxa are represented and this is context-dependent based on the sampled environment. We propose that vertical net tows should be the backbone of monitoring programs as they provide a representation of the phytoplankton community structure and abundance. However, we recommend that a combined approach of water grabs and at least vertical nets be used tailored to regional conditions, as this will provide the most accurate and ecologically meaningful assessments.
DOI: 10.13130/rd_unimi/ui9ecn/ptefws
title: Febbraio_1880_Pagina_028.jpg

description: Bulletin of 1880/02/07
DOI: 10.13130/rd_unimi/ui9ecn/b8irse
title: Febbraio_1880_Pagina_029.jpg

description: Bulletin of 1880/02/08
DOI: 10.13130/rd_unimi/ui9ecn/tetvuk
title: Febbraio_1880_Pagina_030.jpg

description: Bulletin of 1880/02/08
DOI: 10.13130/rd_unimi/ui9ecn/mbedgn
title: Febbraio_1880_Pagina_031.jpg

description: Bulletin of 1880/02/08
DOI: 10.13130/rd_unimi/ui9ecn/2k4zn4
title: Febbraio_1880_Pagina_032.jpg

description: Bulletin of 1880/02/08
DOI: 10.13130/rd_unimi/ui9ecn/3apmxc
title: Febbraio_1880_Pagina_033.jpg

description: Bulletin of 1880/02/09
DOI: 10.13130/rd_unimi/ui9ecn/rl7hcf
title: Febbraio_1880_Pagina_034.jpg

description: Bulletin of 1880/02/09
DOI: 10.13130/rd_unimi/ui9ecn/vkz3to
title: Febbraio_1880_Pagina_035.jpg

description: Bulletin of 1880/02/09
DOI: 10.13130/rd_unimi/ui9ecn/nyv5et
title: Febbraio_1880_Pagina_036.jpg

description: Bulletin of 1880/02/09
DOI: 10.13130/rd_unimi/ui9ecn/3mb7qr
title: Febbraio_1880_Pagina_037.jpg

description: Bulletin of 1880/02/10