Marine Macroalgae collection dataset from Herbarium João de Carvalho e Vasconcellos (LISI)
Citation
Canilho Santos J, Paes P, Arsénio P, Figueira R, Costa J C, Lopes M, Cotrim H, Espírito-Santo D (2023). Marine Macroalgae collection dataset from Herbarium João de Carvalho e Vasconcellos (LISI). Instituto Superior de Agronomia / Universidade de Lisboa. Occurrence dataset https://doi.org/10.15468/p7quz5 accessed via GBIF.org on 2024-09-05.Description
The marine macroalgae LISI collection includes specimens organized in five sub collections: (1) Mainland Portugal marine macroalgae collected between 1880 and 1983, and additional 16 sites revisited in 2020-2021; (2) Azores marine macroalgae, collected by Ilídio Botelho Gonçalves; (3) Foreign marine macroalgae, encompassing British marine macroalgae, collected by Cândido Pinto Ricardo, Farlow Herbarium (FH), Harvard University duplicate vouchers stack and Emile Deyrolle didactic preparations acquisitions; (4) Freshwater algae, where we locate “Algal weeds from rice fields”, a research project led by João de Carvalho e Vasconcellos during the 1950’s; and some accessory documentation on the projects that led to this material. (5) a miscellaneous folder containing several exsiccatae fragments belonging to different taxa of red, green, and brown marine macroalgae with virtually no information regarding collectors, collection site and other scientific or historical information. Overall, it is possible to group collectors in two main clusters: members of Broterian Society (Sociedade Broteriana), the oldest Portuguese botanical non-governmental organization founded by botanical professor Júlio Henriques from Coimbra University in 1880; and researchers or technicians somewhat related to ISA or one of the pre-existing institutions linked to ISA’s foundation event (e.g. Instituto Geral de Agricultura and Instituto de Agronomia e Veterinária). The total number of collectors in the collection is 30.Sampling Description
Study Extent
Before the start of the current digitization project, the most recent vouchers dated back to 1983. Consequently, a new field sampling campaign was mandatory to update the collection and minimize the temporal gap. Samples were collected during the summer of 2020 and 2021. A total of 16 locations representative of Portugal’s coastline previously sampled between 1880s and 1983 by several collectors were chosen to be revisited and sampled.Sampling
For the recent survey, in each location, the coastal section from the splash fringe level in the high intertidal to the low fringe level at the low intertidal was extensively surveyed for algae by a three-people team, working during a two-hour period (from one hour before the low tide peak to one hour after low tide).Method steps
- Collectors’ biographic research and historical background - following compiling all the material related to mainland Portugal marine macroalgae, collectors’ names and biography were traced to identify the Collection’s history, as well as to understand Collection increment throughout the school’s different periods. Finding all existing documentation associated to this Collection would also increase its understanding, namely on sampling methodology and policy. The performed biographic research was mainly obtained through oral and written testimonies by researchers who contributed during their careers back in 1960’s, as well with paper publications findings related to the different sub-collections on LISI archives. To all contributors we extend our deepest gratitude.
- Historical specimens’ taxonomic revision - considering the previously existing material, a relatively high percentage of the material was unidentified, had outdated taxonomic ranks (that is, with no meaning or synonym to today’s taxonomic scheme), or had incomplete information regarding the taxonomic status and/or recollection site. In a first stage, taxonomic revision and identification began by using reliable identification guides and keys for morphological and histological identification for Portugal, Iberian, or northern Atlantic regions, such as Pereira (2020); Hiscock (1979; 1986); and Dickinson (1963). During the last years, numerous changes in species taxonomic status have been made given the incorporation of molecular methodologies, and made available through the public repository AlgaeBase (www.algaebase.org), thus the work of Guiry & Guiry (2021) was instrumental in finding the latest accepted taxon names, regarding the different specimens (including those collected in 2020 and 2021). For several genera, due to different reasons such as lack of information on the voucher and/or bad conservation status of the material, specific literature had to be analysed to insure a correct identification.
- In-situ sampling methodology - in each location, the coastal section from the splash fringe level in the high intertidal to the low fringe level at the low intertidal was extensively surveyed for algae by a three-people team, working during a two-hour period (from one hour before the low tide peak to one hour after low tide). The collected specimens were cleaned from debris and other organisms on seawater and stored in clean plastic boxes with no water. Upon the team’s return, the samples were placed in a dark, cold place to await the corresponding identification and pressing procedures. Concomitantly a minute part of each specimen was separated to dry in a silica-gel bag for DNA extraction (High-purity grade (Davisil Grade 12), pore size 22 Å, 28-200 mesh). It is expected that the work of DNA barcode for some of these specimens, in progress, may confirm or reveal some of the determinations.
Taxonomic Coverages
Macroalgae, identified to genus or species rank.
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Plantaerank: kingdom
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Chromistarank: kingdom
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Rhodophytarank: phylum
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Ochrophytarank: phylum
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Chlorophytarank: phylum
Geographic Coverages
Before the start of the current digitization project, the most recent vouchers dated back to 1983. Consequently, a new field sampling campaign was mandatory to update the collection and minimize the temporal gap. Samples were collected during the summer of 2020 and 2021. A total of 16 locations representative of Portugal’s coastline previously sampled between 1880s and 1983 by several collectors were chosen to be revisited and sampled.
Bibliographic Citations
- Pereira, Leonel & Gaspar, Rui. (2020). Illustrated Guide to the Macroalgae of Buarcos Bay, Figueira da Foz, Portugal. DOI: 10.13140/RG.2.2.31009.56165. -
- Hiscock S (1979) A field key to the British brown seaweeds (Phaeophyta). Field Studies Council, 40 pp. -
- Hiscock S (1986) A field key to the British red seaweeds. Field Studies Council, 101 pp. -
- Dickinson, Carola I. (1963). British Seaweeds. Kew series. Vol. 3. London: Eyre & Spottiswoode -
- Guiry, M.D. & Guiry, G.M. 2022. AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. https://www.algaebase.org; searched on 13 de janeiro de 2022. -
Contacts
João Canilho Santosoriginator
position: MSc student
Instituto Superior de Agronomia, Universidade de Lisboa
Herbário, Tapada da Ajuda
Lisboa
1349-017 Lisboa
PT
userId: http://orcid.org/0000-0002-7468-982X
Paula Paes
originator
position: Técnica de Herbário
Instituto Superior de Agronomia, Universidade de Lisboa
Herbário, Tapada da Ajuda
Lisboa
1349-017 Lisboa
PT
email: appaes@isa.ulisboa.pt
Pedro Arsénio
originator
position: Professor
Instituto Superior de Agronomia, Universidade de Lisboa
Herbário, Tapada da Ajuda
Lisboa
1349-017 Lisboa
PT
email: arseniop@isa.ulisboa.pt
userId: http://orcid.org/0000-0003-3860-9789
Rui Figueira
originator
position: Professor
Instituto Superior de Agronomia, Universidade de Lisboa
Herbário, Tapada da Ajuda
Lisboa
1349-017 Lisboa
PT
Telephone: (+351) 213653165
email: ruifigueira@isa.ulisboa.pt
userId: http://orcid.org/0000-0002-8351-4028
José Carlos Costa
originator
position: Professor
Instituto Superior de Agronomia, Universidade de Lisboa
Herbário, Tapada da Ajuda
Lisboa
1349-017 Lisboa
PT
M.D. Lopes
originator
Tec Labs - Centro de Inovação, Faculdade de Ciências da Universidade de Lisboa
Campo Grande
Lisboa
1749-016 Lisboa
PT
Helena Cotrim
originator
position: Professor
Faculdade de Ciências da Universidade de Lisboa. Departamento de Biologia Vegetal
Bloco C2, 5º Piso, sala 37, Campo Grande
Lisboa
1745-016 Lisboa
PT
userId: http://orcid.org/0000-0003-2611-9600
Dalila Espírito-Santo
originator
position: Researcher
Instituto Superior de Agronomia, Universidade de Lisboa
Herbário, Tapada da Ajuda
Lisboa
1349-017 Lisboa
PT
userId: http://orcid.org/0000-0002-8222-0212
João Canilho Santos
metadata author
position: MSc Student
Instituto Superior de Agronomia, Universidade de Lisboa
Herbário, Tapada da Ajuda
Lisboa
1349-017 Lisboa
PT
userId: http://orcid.org/0000-0002-7468-982X
Pedro Arsénio
administrative point of contact
position: Professor
Instituto Superior de Agronomia, Universidade de Lisboa
Herbário, Tapada da Ajuda
Lisboa
1349-017 Lisboa
PT
email: arseniop@isa.ulisboa.pt
userId: http://orcid.org/0000-0003-3860-9789