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Geographic patterns of biodiversity in European coastal marine benthos

Abstract: Within the COST action EMBOS (European Marine Biodiversity Observatory System) the degree and variation of the diversity and densities of soft-bottom communities from the lower intertidal or the shallow subtidal was measured at 28 marine sites along the European coastline (Baltic, Atlantic, Mediterranean) using jointly agreed and harmonized protocols, tools and indicators. The hypothesis tested was that the diversity for all taxonomic groups would decrease with increasing latitude. The EMBOS system delivered accurate and comparable data on the diversity and densities of the soft sediment macrozoobenthic community over a large-scale gradient along the European coastline. In contrast to general biogeographic theory, species diversity showed no linear relationship with latitude, yet a bell-shaped relation was found. The diversity and densities of benthos were mostly positively correlated with environmental factors such as temperature, salinity, mud and organic matter content in sediment, or wave height, and related with location characteristics such as system type (lagoons, estuaries, open coast) or stratum (intertidal, subtidal). For some relationships, a maximum (e.g. temperature from 15–20°C; mud content of sediment around 40%) or bimodal curve (e.g. salinity) was found. In lagoons the densities were twice higher than in other locations, and at open coasts the diversity was much lower than in other locations. We conclude that latitudinal trends and regional differences in diversity and densities are strongly influenced by, i.e. merely the result of, particular sets and ranges of environmental factors and location characteristics specific to certain areas, such as the Baltic, with typical salinity clines (favouring insects) and the Mediterranean, with higher temperatures (favouring crustaceans). Therefore, eventual trends with latitude are primarily indirect and so can be overcome by local variation of environmental factors.

 Congreso: European Marine Biology Symposium (50th : 2015 : Helgoland)

Editorial: Journal of the Marine Biological Association of the United Kingdom

 Fecha de publicación: 01/05/2017

Nº de páginas: 19

Tipo de publicación: Comunicación a Congreso

DOI: 10.1017/S0025315416001119

ISSN: 0025-3154,1469-7769

Url de la publicación: https://www.cambridge.org/core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom/article/geographic-patterns-of-biodiversity-in-european-coastal-marine-benthos/34E1ACF08EF157D9007AACBC1FF63114

Autores/as

HUMMEL, HERMAN

VAN AVESAATH, PIM

WIJNHOVEN, SANDER

KLEINE-SCHAARS, LORAN

DEGRAER, STEVEN

KERCKHOF, FRANCIS

BOJANIC, NATALIA

SKEJIC, SANDA

VIDJAK, OLJA

ROUSOU, MARIA

ORAV-KOTTA, HELEN

KOTTA, JONNE

JOURDE, JÉRÔME

PEDROTTI, MARIA LUIZA

LECLERC, JEAN-CHARLES

SIMON, NATHALIE

RIGAUT-JALABERT, FABIENNE

BACHELET, GUY

LAVESQUE, NICOLAS

ARVANITIDIS, CHRISTOS

PAVLOUDI, CHRISTINA

FAULWETTER, SARAH

CROWE, TASMAN

COUGHLAN, JENNIFER

BENEDETTI-CECCHI, LISANDRO

DAL BELLO, MARTINA

MAGNI, PAOLO

COMO, SERENA

COPPA, STEFANIA

IKAUNIECE, ANDA

RUGINIS, TOMAS

JANKOWSKA, EMILIA

WESLAWSKI, JAN MARCIN

WARZOCHA, JAN

GROMISZ, SLAWOMIRA

WITALIS, BARTOSZ

SILVA, TERESA

RIBEIRO, PEDRO

FERNANDES DE MATOS, VALENTINA KIRIENKO

SOUSA-PINTO, ISABEL

VEIGA, PURI

TRONCOSO, JESÚS

XABIER GUINDA SALSAMENDI

PÉREZ-RUZAFA, ANGEL

FROST, MATT

LOUISE MCNEILL, CAROLINE

PELEG, OHAD

RILOV, GIL