The First International Workshop to Marine and Anchialine Meiofauna in Lanzarote 2011
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This special issue of Marine Biodiversity features eight articles that represent the results of the First International Workshop to Marine and Anchialine Meiofauna in Lanzarote. This scientific workshop, held between 4 and 20 October 2011, involved a comprehensive survey of the most representative marine and anchialine habitats around the island of Lanzarote. Marine sampling included seven sandy beaches of different hydrodynamic state, three open caves mostly containing mud and coarse sand, and four open subtidal stations with different kinds of sediments. Sampling in the anchialine water bodies focused on the three flooded sections of La Corona lava tube: Cueva de Los Lagos, Los Jameos del Agua lake, and Túnel de la Atlántida, the world’s longest flood lava tube (Martínez et al. 2016). This last section includes Montaña de Arena, the only truly interstitial anchialine habitat known in the island, situated 750 m within the cave (Wilkens et al. 2009). Sampling along La Corona lava tube was accompanied by the inspection of two complexes of anchialine pools (Charcos de Luis and Charcos de Montaña Bermeja) and the anchialine wells at Los Agujeros saltworks.
The main scientific objectives of the workshop were (1) to provide a comprehensive checklist of the marine and anchialine meiofauna in the Atlantic oceanic island of Lanzarote, (2) to investigate the ecological and geographical correlates to species richness and endemism at regional and local scales, (3) to complete the inventory of the interstitial fauna from the Montaña de Arena, and (4) to formally describe some of the most representative interstitial and cave species. The first three objectives were treated in the first contribution to this special issue (Martínez et al. 2019). This publication shows the astoundingly rich diversity of meiofauna that we encountered, which included 239 species amongst annelids, cnidarians, gastrotrichs, gnathostomulids, heterobranch molluscs, nemerteans, platyhelminths, priapulids, and rotifers. Our analyses showed that the proportion of endemic species was lower in groups with a higher proportion of parthenogenetic species, while it was not significantly affected by body size and percentage of species with dispersal stages. Only annelids showed significantly higher number of endemic species in anchialine habitats, highlighting the resemblance between the interstitial fauna to Montaña de Arena and that found in the sea.
The forth objective was treated in the seven other papers included in this issue, which formally described 10 out of the 85 new species to science found during this workshop (Di Domenico et al. 2019; Worsaae et al. 2019a, 2019b; Todaro et al. 2019; Gobert et al. 2019; Scarpa et al. 2019a, 2019b). Some of these papers went beyond the goals of the workshop, as they included the description of 10 additional species from other geographical regions, as well as molecular studies on their phylogenetic relationships. In addition to the papers included in this volume, the material collected during the workshop has been published so far in a total of nine peer-reviewed scientific studies (Martínez et al. 2015, 2017, 2019; Leasi et al. 2016; Gonzalez et al. 2017a, b, 2018; Gusmão et al. 2016; Worsaae et al. 2018), and three book chapters (Martínez and Gonzalez 2018, Martínez et al. 2018, 2019).
I thank the local Environmental and Touristic Services of the Cabildo de Lanzarote for granting access to the Túnel de la Atlántida and for collection permits. My greatest gratitude goes to Elena Mateo and Clara Bonilla, currently working at Lanzarote and Chinijo Islands Global UNESCO Geopark, for their full support arranging the infrastructure for the workshop. Thanks to Leopoldo Moro Abad and Rogelio Herrera for helping us obtaining diving permits. I thank Suso Fontes for his help scheduling the dives at Los Jameos del Agua Touristic Centre, and providing his wonderful wine. Finally, I want to express my gratitude to all the divers and scientists who participated in the workshop, all showing their mastery and enthusiasm in obtaining the scientific results presented in this volume.
The organization of the workshop was funded by the Carlsberg Foundation in Denmark (2013_01_0779 to AM and CF_0946 and 2013_01_0501 to KW). AM was supported by Marie Skolodowska-Curie Individual Grant (IFEF, number 745530) during the writing of this volume. Partial funding for the expedition was from Reserva de la Biosfera and Consejería de Medio Ambiente of the Canary Government.
Compliance with ethical standards
Conflict of interest
The author declares that he has no conflict of interest.
All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.
Sampling and field studies
All necessary permits for sampling and observational field studies have been obtained by the author from the competent authorities and are mentioned in the acknowledgements, if applicable.
There is no data associated with this manuscript.
- Di Domenico M, Martínez A, Worsaae K (2019) Saccocirridae (Annelida) from the Canary Islands with descriptions of Saccocirrus slateri sp. nov. Mar Biodiv 49(5). https://doi.org/10.1007/s12526-019-00991-7
- Gobert S, Reygel P, Artois T (2019) Schizorhynchia (Platyhelminthes Rhabdocoela) of Lanzarote (Canary Islands), with the description of eight new species. Mar Biodivers 49(5). https://doi.org/10.1007/s12526-017-0736-x
- Martínez A, Gonzalez BC (2018) Volcanic anchialine habitats of Lanzarote. In: Moldovan O, Kováč Ľ, Halse S (eds) Cave Ecology. Ecological Studies (Analysis and Synthesis), vol 235. SpringerGoogle Scholar
- Martínez A, Gonzalez BC, Núñez J, Wilkens H, Oromí P, Iliffe TM, Worsaae K (2016) Guide to the anchialine ecosystems of Jameos del Agua and Túnel de la Atlántida. Medio Ambiente, Cabildo de Lanzarote, Arrecife, LanzaroteGoogle Scholar
- Martínez A, Purschke G, Worsaae K (2018) Handbook of zoology. Annelida. Protodrilidae Hatschek, 1888. p 38Google Scholar
- Martínez A, García-Gómez G, García-Herrero A, Di Cesare A, Corno G, Herrera R, Moro L, Eckert EM, Fontaneto D (2019) Lanzarote and Chinijo Islands: An Anchialine UNESCO Global Geopark. In: Mateo E, Martínez-Frías J, Vegas J (eds) Lanzarote and Chinijo Islands Geopark: From Earth to Space. Geoheritage, Geoparks and Geotourism (Conservation and Management Series). Springer, ChamGoogle Scholar
- Martínez A, Di Domenico M, Leasi F, Curini-Galletti M, Todaro MA, Dal Zotto M, Artois T, Norenburg J, Jörger KM, Núñez J, Fontaneto D, Worsaae K (2019) Patterns of diversity and endemism of soft-bodied meiofauna in an oceanic island, Lanzarote, Canary Islands. Mar Biodivers 49(5). https://doi.org/10.1007/s12526-019-01007-0
- Scarpa F, Cossu P, Sanna D, Lai T, Casu M, Curini-Galleti M (2019a) New insights on the genus Otoplana Du Plessis, 1889 (Platyhelminthes: Proseriata), with description of two new species from the Canary Islands. Mar Biodivers 49(5). https://doi.org/10.1007/s12526-017-0785-1
- Scarpa F, Sanna D, Cossu P, Lai T, Casu M, Curini-Galleti M (2019b) How to achieve internal fertilization without a vagina: the study case of the genus Archilina Ax, 1959 (Platyhelminthes, Proseriata) from Canary Islands. Mar Biodivers 49(5). https://doi.org/10.1007/s12526-018-0890-9
- Todaro MA, Cesaretti A, Dal Zotto M (2019) Marine gastrotrichs from Lanzarote, with a description of a phylogenetically relevant species of Urodasys (Gastrotricha, Macrodasyida). Mar Biodivers 49(5). https://doi.org/10.1007/s12526-017-0747-7
- Worsaae K, Gonzalez BC, Kerbl A, Nielsen SH, Jørgensen JT, Armenteros M, Iliffe TM, Martínez A (2019a) Description and evolution of the stygobitic Speleonerilla nom. nov. (Nerillidae, Annelida) with description of three new species from anchialine caves in the Caribbean and Lanzarote. Mar Biodivers 49(5). https://doi.org/10.1007/s12526-018-0906-5
- Worsaae K, Mikkelsen M, Martínez A (2019b) Description of six new species of Mesonerilla (Nerillidae, Annelida) and an emended description of M. intermedia Wilke, 1953, from marine and cave environments. Mar Biodivers 49(5). https://doi.org/10.1007/s12526-019-00984-6