Abstract
In recent years (2007–2009), the distribution and associated flora of maerl beds in southern Portugal (Algarve) were investigated by dredging and SCUBA diving (12–30 m depth). The present work provides the first data on the non-coralline crustose flora associated with maerl beds in Portugal. Peyssonnelia bornetii is a new record for Atlantic European coasts, and new records for Portugal are “Rhododiscus pulcherrimus” (sporophyte phase of Atractophora hypnoides), Contarinia peyssonneliaeformis, “Cruoria rosea” (sporophyte phase of Halarachnion ligulatum), Peyssonnelia armorica, and “Aglaozonia chilosa” (sporophyte phase of Cutleria chilosa). In addition, the records of three other species (Hildenbrandia crouaniorum, Peyssonnelia dubyi, and Peyssonnelia harveyana) completed the distribution gap between the North Iberian Peninsula and the Macaronesian region. The female and carposporangial structures of C. peyssonneliaeformis and P. bornetii are described for the first time. The diversity and species composition observed are compared with previous studies from maerl beds in the northwestern Iberian Peninsula (Galicia) and neighboring areas in the Atlantic Ocean and Mediterranean Sea. In order to facilitate and promote further studies of the crustose flora of subtidal habitats along European coasts, an identification key is provided for the 26 crustose taxa associated with maerl and gravel beds of the Atlantic coast of the Iberian Peninsula.
This study was supported by the research project CGL2006-03576/BOS (Ministerio de Educacion y Ciencia and FEDER). VP acknowledges support by Xunta de Galicia (Plan Galego de Investigación, Innovación e Crecemento, Plan I2C, 2011-2015) and Spain’s Ministerio de Economía y Competitividad (Programa Nacional de Movilidad de Recursos Humanos, 2008–2011). We thank to Estibaliz Berecibar, Rui Santos, Pedro Neves, Miguel Rodrigues, Pilar Diaz, and Javier Souto for their assistance in the fieldwork. We are also grateful to both anonymous reviewers and Dr. Matthew Dring for their helpful comments on the manuscript.
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Artikel in diesem Heft
- Masthead
- Masthead
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- Ecological dynamics of Zostera marina (eelgrass) in three adjacent bays in Atlantic Canada
- Historical and present distribution of Zostera marina in the high north (Troms County, northern Norway) – a decline over the last century
- Tolerance to air exposure: a feature driving the latitudinal distribution of two sibling kelp species
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- Neosiphonia baliana sp. nov. and N. silvae sp. nov. (Rhodomelaceae, Rhodophyta) from Bali, Indonesia
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Artikel in diesem Heft
- Masthead
- Masthead
- Research articles
- Ecological dynamics of Zostera marina (eelgrass) in three adjacent bays in Atlantic Canada
- Historical and present distribution of Zostera marina in the high north (Troms County, northern Norway) – a decline over the last century
- Tolerance to air exposure: a feature driving the latitudinal distribution of two sibling kelp species
- Colpomenia bullosa crust (Phaeophyceae) stressed less by grazing than by abiotic factors in high intertidal rockpools in southeast Australia
- Assessment of Fucus virsoides distribution in the Gulf of Trieste (Adriatic Sea) and its relation to environmental variables
- Long-term changes in sublittoral macroalgal assemblages related to water quality improvement
- Linking macroalgal δ15N-values to nitrogen sources and effects of nutrient stress on coral condition in an upwelling region
- Non-coralline crustose algae associated with maerl beds in Portugal: a reappraisal of their diversity in the Atlantic Iberian beds
- Hydrolithon abyssophila sp. nov. (Hydrolithoideae, Corallinales), a bisporic coralline from the insular shelf edge of Puerto Rico and the Virgin Islands (US)
- The first record of Grateloupia subpectinata from the New Zealand region and comparison with G. prolifera, a species endemic to the Chatham Islands
- Neosiphonia baliana sp. nov. and N. silvae sp. nov. (Rhodomelaceae, Rhodophyta) from Bali, Indonesia
- Effects of density and substrate type on recruitment and growth of Pyropia torta (Rhodophyta) gametophytes
- Morphology and life stages of the potentially pinnatoxin-producing thecate dinoflagellate Vulcanodinium rugosum from the tropical Mexican Pacific
- Short communication
- Fungal endophytes of the seagrasses Halodule wrightii and Thalassia testudinum in the north-central Gulf of Mexico