Trophic impact of long-lived species indicated by population dynamics in the short-lived hydrozoan Eudendrium racemosum

Trophic impact of long-lived species indicated by population dynamics in the short-lived hydrozoan Eudendrium racemosum

15 pages, 6 figures, 4 tables

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Main Authors: Rossi, Sergio, Bramanti, Lorenzo, Broglio, Elisabetta, Gili, Josep Maria
Format: artículo biblioteca
Language:English
Published: Inter Research 2012-10-25
Subjects:Energy storage, Benthic suspension feeders, Animal forest, Ecosystem engineering, Self-thinning rule, Trophic ecology, Benthic-pelagic coupling, Hydroids,
Online Access:http://hdl.handle.net/10261/92097
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spelling dig-icm-es-10261-920972020-12-09T16:24:32Z Trophic impact of long-lived species indicated by population dynamics in the short-lived hydrozoan Eudendrium racemosum Rossi, Sergio Bramanti, Lorenzo Broglio, Elisabetta Gili, Josep Maria Energy storage Benthic suspension feeders Animal forest Ecosystem engineering Self-thinning rule Trophic ecology Benthic-pelagic coupling Hydroids 15 pages, 6 figures, 4 tables Population dynamics, morphology, density, lipid contents and prey capture rates were studied in a patchy population of the tree-like passive suspension feeder Eudendrium racemosum (Cnidaria: Hydrozoa) during seasonal cycles. Density and size of colonies oscillated due to intraspecific competition (following the self-thinning rule) and predation (nudibranchs) showing size distributions in which alternatively large-and small-sized colonies were more abundant. Increase in the trophic impact on the water column was correlated with colony size (30.7 mg C m -2 d -1 in late spring-early summer compared with 10.2 mg C m -2 d -1 in the rest of the year). Lipid accumulation in the hydrocauli followed the same trend, being higher during the reproductive period (140 μg lipids mg -1 organic matter [OM]) compared with the rest of the year (70 μg lipids mg -1 OM). The short time cyclic variations reproduce, in a short time scale, the variations studied in other benthic suspension feeders, suggesting E. racemosum as a model organism to better understand the importance of large colonies in long-lived species in benthic-pelagic coupling processes. The accordance with the self-thinning rule found for this animal species strengthens the animal forest concept (a 3-dimensional live structure composed mainly by heterotrophic organisms such as gorgonians, bryozoans, and sponges), confirming the validity of the utilization, by marine ecologists, of the conceptual tools developed for terrestrial forest sciences. It is suggested that the impact of mature populations on benthic-pelagic coupling and biogeochemical cycles, simulated for long-lived species, could be validated by studying fast-growing species, in order to understand the importance of the preservation of complex structures and long-lived eco-engineering organisms in benthic habitats. © Inter-Research 2012 Support for this work was provided by a FPI fellowship from the ‘Ministerio de Educación y Ciencia’ and a Ramón y Cajal Contract (RyC-2007-01327) to S.R., by a CICYT grant and by the MAST-III-ELOISE European Union METRO MED Project. L.B. was supported by a Marie Curie Intra-European Fellowship within the 7th European Community Framework Programme (Project No. 221072 Peer Reviewed 2014-02-20T08:57:22Z 2014-02-20T08:57:22Z 2012-10-25 2014-02-20T08:57:22Z artículo http://purl.org/coar/resource_type/c_6501 doi: 10.3354/meps09848 issn: 0171-8630 e-issn: 1616-1599 Marine Ecology Progress Series 467: 97-111 (2012) http://hdl.handle.net/10261/92097 10.3354/meps09848 en https://doi.org/10.3354/meps09848 open Inter Research
institution ICM ES
collection DSpace
country España
countrycode ES
component Bibliográfico
access En linea
databasecode dig-icm-es
tag biblioteca
region Europa del Sur
libraryname Biblioteca del ICM España
language English
topic Energy storage
Benthic suspension feeders
Animal forest
Ecosystem engineering
Self-thinning rule
Trophic ecology
Benthic-pelagic coupling
Hydroids
Energy storage
Benthic suspension feeders
Animal forest
Ecosystem engineering
Self-thinning rule
Trophic ecology
Benthic-pelagic coupling
Hydroids
spellingShingle Energy storage
Benthic suspension feeders
Animal forest
Ecosystem engineering
Self-thinning rule
Trophic ecology
Benthic-pelagic coupling
Hydroids
Energy storage
Benthic suspension feeders
Animal forest
Ecosystem engineering
Self-thinning rule
Trophic ecology
Benthic-pelagic coupling
Hydroids
Rossi, Sergio
Bramanti, Lorenzo
Broglio, Elisabetta
Gili, Josep Maria
Trophic impact of long-lived species indicated by population dynamics in the short-lived hydrozoan Eudendrium racemosum
description 15 pages, 6 figures, 4 tables
format artículo
topic_facet Energy storage
Benthic suspension feeders
Animal forest
Ecosystem engineering
Self-thinning rule
Trophic ecology
Benthic-pelagic coupling
Hydroids
author Rossi, Sergio
Bramanti, Lorenzo
Broglio, Elisabetta
Gili, Josep Maria
author_facet Rossi, Sergio
Bramanti, Lorenzo
Broglio, Elisabetta
Gili, Josep Maria
author_sort Rossi, Sergio
title Trophic impact of long-lived species indicated by population dynamics in the short-lived hydrozoan Eudendrium racemosum
title_short Trophic impact of long-lived species indicated by population dynamics in the short-lived hydrozoan Eudendrium racemosum
title_full Trophic impact of long-lived species indicated by population dynamics in the short-lived hydrozoan Eudendrium racemosum
title_fullStr Trophic impact of long-lived species indicated by population dynamics in the short-lived hydrozoan Eudendrium racemosum
title_full_unstemmed Trophic impact of long-lived species indicated by population dynamics in the short-lived hydrozoan Eudendrium racemosum
title_sort trophic impact of long-lived species indicated by population dynamics in the short-lived hydrozoan eudendrium racemosum
publisher Inter Research
publishDate 2012-10-25
url http://hdl.handle.net/10261/92097
work_keys_str_mv AT rossisergio trophicimpactoflonglivedspeciesindicatedbypopulationdynamicsintheshortlivedhydrozoaneudendriumracemosum
AT bramantilorenzo trophicimpactoflonglivedspeciesindicatedbypopulationdynamicsintheshortlivedhydrozoaneudendriumracemosum
AT broglioelisabetta trophicimpactoflonglivedspeciesindicatedbypopulationdynamicsintheshortlivedhydrozoaneudendriumracemosum
AT gilijosepmaria trophicimpactoflonglivedspeciesindicatedbypopulationdynamicsintheshortlivedhydrozoaneudendriumracemosum
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