Thomas Brey

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung

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Wolf Arntz

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung

Jennifer Dannheim

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung

Katharina Teschke

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung

Olaf Heilmayer

National Oceanography Centre

Doris Abele

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung

Hendrik Pehlke

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung

Ute Jacob

Helmholtz Institute for Functional Marine Biodiversity

Katja Mintenbeck

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung

Lars Gutow

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung

Rainer Knust

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung

Cooperative Institutions

Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung

212

University of Bremen

Kiel University

Carl von Ossietzky Universität Oldenburg

GEOMAR Helmholtz Centre for Ocean Research Kiel

Consejo Nacional de Investigaciones Científicas y Técnicas

Centre National de la Recherche Scientifique

Universität Hamburg

Hochschule Bremerhaven

John Wiley & Sons (United States)

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Up-scaling Arctic diversity analysis to link community organisation and ecosystem functioning under climate change

Casper Kraan Thomas Brey Dieter Piepenburg

Invited presentation for the PACES-II TOPIC 1 pre-evaluation workshop. I presented as representative for WP6.

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Compilation of scientific results of the EU project BENGAL

Olaf Pfannkuche Christophe Rabouille Franck Bassinot Joëlle Galéron A.L. Rice

BENGAL

10.1594/pangaea.859217

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Why are there no Patagonic scallops (Zygochlamys patagonica) north of the Rio Plata estuary

Olaf Heilmayer Claudia Bremec Thomas Brey Mario Lasta Juan L. Valero

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Analysis of ontogenetic growth trends in two marine Antarctic bivalves Yoldia eightsi and Laternula elliptica: Implications for sclerochronology

Palaeogeography Palaeoclimatology Palaeoecology (2016)

Alejandro Román González James Scourse Paul Butler David J. Reynolds Christopher A. Richardson

There is an increasing use of marine species as palaeoclimate recorders for the marine realm. These archives provide novel baseline records of past oceanographic variability in regions devoid of instrumental observations. Here we report results of a study of the ontogenetic growth pattern of two Antarctic marine bivalve molluscs: Yoldia eightsi and Laternula elliptica from West Antarctic Peninsula populations using negative exponential detrending technique and multi-taper method spectral analysis. Our data show that the growth of both Y. eightsi and L. elliptica follows a general negative exponential trend over their longevity. However, our analyses also identified an innate 9.06 year periodic endogenous growth rhythm in the growth increment pattern of Y. eightsi and two innate periodic growth rhythms, 5 and 6.6 year period, were found in L. elliptica. We hypothesize that the Y. eightsi endogenous growth rhythm may be related to the reallocation of energetic resources between somatic growth and gametogenesis although more biological data are required to test this hypothesis. Further work into L. elliptica biology is required to understand the possible meaning of the innate growth rhythms found for this species. The identification of growth rhythms is important not only for their biological significance but also in sclerochronological analysis because of their importance in developing palaeoenvironmental reconstructions.

10.1016/j.palaeo.2016.05.004

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Citations (38)

Individual growth and somatic production in Adelomelon brasiliana (Gastropoda; Volutidae) off Argentina

Marine Biology (2005)

Maximiliano Cledón Thomas Brey Pablo E. Penchaszadeh Wolf Arntz

10.1007/s00227-005-1589-6

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Citations (34)

On the Art of Classification in Spatial Ecology: Fuzziness as an Alternative for Mapping Uncertainty

Frontiers in Ecology and Evolution (2018)

Dario Fiorentino Vincent Lecours Thomas Brey

OPINION article Front. Ecol. Evol., 21 December 2018Sec. Biogeography and Macroecology Volume 6 - 2018 | https://doi.org/10.3389/fevo.2018.00231

10.3389/fevo.2018.00231

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Citations (11)

Growth, productivity, and significance for fishery of the bivalve Egeria radiata (Donicadae) in the Cross River, Nigeria

Lawrence Etim Thomas Brey

Radiata

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Saving by freezing? Metabolic rates of Adamussium colbecki in a latitudinal context

Marine Biology (2003)

Olaf Heilmayer Thomas Brey

Economic shortage

10.1007/s00227-003-1079-7

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Citations (43)

Growth changes of the stout razor clam Tagelus plebeius (Lightfoot, 1786) under different salinities in SW Atlantic estuaries

Journal of Sea Research (2019)

Mariana Addino María Fernanda Álvarez Thomas Brey Oscar Iribarne Betina J. Lomovasky

Euryhaline

10.1016/j.seares.2019.01.005

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Citations (14)

Predictive value of trait-based measures for benthic secondary production in the German North Sea

Henrike Andresen Jennifer Dannheim Thomas Brey

Understanding the role of biodiversity for ecosystem functioning has become a central research theme in marine ecology. Benthic communities with a higher diversity have been suggested to operate more effectively, which could be quantifiable as a higher secondary production. However, there is no general ecological relationship between diversity and production, not only due to environmental influences, but also because of species-specific effects. Functional diversity has been identified as the key to understanding the link between biodiversity and ecosystem functioning. We are taking a trait-based and large-scale observational approach to relate patterns in macrofaunal secondary production to functional diversity in the southern North Sea, where benthic macrofauna is confronted with many natural and anthropogenic stressors. Functional diversity is expressed in indices based on dissimilarities of species traits such as feeding type, environmental position, and larval development. Production is calculated with taxon-specific empirical productivity models. Patterns of functional diversity were spatially more homogeneous than taxonomic diversity. A handful of species provided the majority of the secondary production. Spatially implicit regressions are used to analyze how secondary production is related to environmental factors and trait diversity. We explore further whether models are improved by including specific key traits potentially contributing to energy flow. Knowledge on the explanatory value of trait composition for maintaining productivity in our system is needed to explore scenarios of anticipated changes in diversity.

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Ecosystem diversity

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