Recolonization of experimental gaps by the mussels Brachidontes darwinianus and B. solisianus in a subtropical rocky shore

Tanaka, Marcel Okamoto

doi:10.1590/s1516-89132005000100015

Cited by 10 publications

(8 citation statements)

References 9 publications

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“…On Brazilian rocky shores, two species of mytilids generally dominate the intertidal zone, Brachidontes darwinianus and B. solisianus. Brachidontes darwinianus replaces B. solisianus at low salinity sites (Tanaka, 2005;Tanaka and Magalhães, 2002). In this study, Brachidontes specimens were collected in a full oceanic area, without any inputs of fresh water, and therefore the presence of B. darwinianus in samples was very unlikely.…”

Section: Materials and Methods Sampling Designmentioning

confidence: 99%

Interspecies comparison of the mechanical properties and biochemical composition of byssal threads

Bouhlel

Genard

Ibrahim

et al. 2017

Journal of Experimental Biology

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Several bivalve species produce byssus threads to provide attachment to substrates, with mechanical properties highly variable among species. Here, we examined the distal section of byssal threads produced by a range of bivalve species (Mytilus edulis, Mytilus trossulus, Mytilus galloprovincialis, Mytilus californianus, Pinna nobilis, Perna perna, Xenostrobus securis, Brachidontes solisianus and Isognomon bicolor) collected from different nearshore environments. Morphological and mechanical properties were measured, and biochemical analyses were performed. Multivariate redundancy analyses on mechanical properties revealed that byssal threads of M. californianus, M. galloprovincialis and P. nobilis have very distinct mechanical behaviours compared with the remaining species. Extensibility, strength and force were the main variables separating these species groups, which were highest for M. californianus and lowest for P. nobilis. Furthermore, the analysis of the amino acid composition revealed that I. bicolor and P. nobilis threads are significantly different from the other species, suggesting a different underlying structural strategy. Determination of metal contents showed that the individual concentration of inorganic elements varies, but that the dominant elements are conserved between species. Altogether, this bivalve species comparison suggests some molecular bases for the biomechanical characteristics of byssal fibres that may reflect phylogenetic limitations.

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Section: Materials and Methods Sampling Designmentioning

confidence: 99%

Interspecies comparison of the mechanical properties and biochemical composition of byssal threads

Bouhlel

Genard

Ibrahim

et al. 2017

Journal of Experimental Biology

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“…Neste trabalho foram realizadas perturbações artificiais através da raspagem do substrato, utilizando-se como medida padrão, quadrados de 10 x 10 cm, nas duas estações (Brachidontes e Cirripedia) as quais foram acompanhadas quinzenalmente, durante 6 meses no período de agosto de 2004 a janeiro de 2005, no horário de baixa-mar (DHN, 2004;2005). Nas estações foram delimitados transectos no sentido paralelo á linha de praia de 2 metros de comprimento equivalente a 20 quadrados alinhados horizontalmente.…”

Section: Methodsunclassified

Interação entre processos de colonização e sucessão ecológica de comunidades bioincrustantes na praia de Piedade.

Raupp¹,

Guimaraens²,

Luz³

et al. 2008

TropOcean

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RESUMOO presente estudo tem por objetivo avaliar as interações entre processos de colonização e sucessão ecológica de comunidades bioincrustantes dos recifes da Praia de Piedade na cidade de Jaboatão dos Guararapes, no estado de Pernambuco. Pretende também, avaliar a recuperação da comunidade de animais invertebrados após uma perturbação artificial e sua relação com os caracteres ambientais qualitativos deste ambiente, como o posicionamento relativo das diferentes zonas do recife. Neste trabalho realizamos perturbações artificiais e fomos acompanhando durante 6 meses, para avaliar o poder de regeneração do meio e comportamento das populações diante dos impactos sofridos. As amostragens da comunidade com e sem perturbação foram feitas pela contagem de organismos utilizando quadrados de 10 X 10 cm. A composição de espécies que recrutaram não diferiu, nas diferentes faixas amostradas. Algumas diferenças estatísticas significativas foram observadas nos quadrados de recrutamento de Cirripedia entre as datas de coleta mostrando a evolução da comunidade, porém a recuperação ao nível de abundância, pré-impacto não foi observada no período do experimento. O estudo do recrutamento de invertebrados motivou a construção de um modelo com o software Stella TM que assume o recrutamento como função de entrada de novos indivíduos da população a cada passo de tempo e simula bem em ordem de grandeza o quantitativo dos invertebrados encontrados nos quadrados amostrados no campo.Palavras chaves: bioincrustação, invertebrados marinhos, sucessão ecológica. INTERACTION PROCESSES BETWEEN COLONIZATION AND ECOLOGICAL SUCCESSION OF BIOFOULING COMMUNITIES AT PIEDADE BEACH. ABSTRACTThe present study has the purpose of evaluating the interactions between the colonization processes and ecological succession of biofouling communities, of reefs from Piedade Beach at Jaboatão dos Guararapes City, Pernambuco State. We also intend to evaluate the recovery of the invertebrate animal community after an artfitial perturbation and their relation with the qualitative environmental characteristics of this environment, with the positioning on the different reef zones. In this work we manipulated the reefs communities and followed the open patches for about 6 months to evaluate the regeneration processes of the media, and their behavior in front of the different manipulation impacts. The community sampling with and without perturbation were made by the counting of organisms using 10 x 10 cm quadracts. The species composition of recruiting organisms did not differ, on the different sampled levels. Some significant statistical differences were observed on the sampling recruitment of Cirripedea between the sampling data showing the community evolution in time. However the recovery of the preimpact level were not observed during the experiment time. The recruitment study of invertebrates motivated the building of a model with the software Stella TM that assumes the recruitment as a function of new individuals entering the population at each time step and Receb...

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“…B. darwinianus occurs in rocky shores from SE Brazil to the north of Patagonia, and is generally associated with sources of freshwater and estuarine environments (Klappenbach 1965;Rios 1994;Scarabino et al 2006). In Brazil, this species overlaps with B. solisianus, usually forming a single layer in intertidal habitats, occurring in mixed beds or vertically separated (Tanaka and Magalhães 2002;Tanaka 2005).…”

Section: Ecologymentioning

confidence: 99%

Linking fisheries management and conservation in bioengineering species: the case of South American mussels (Mytilidae)

Carranza

Defeo

Beck

et al. 2009

Rev Fish Biol Fisheries

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We examined a complete list of South American mussels (Mytilidae) to identify species with current or potential needs for management and conservation actions. Based on ecological/ecosystem (aggregations, beds or banks affecting ecosystem functioning) and socio-economic (artisanal fisheries or aquaculture systems) attributes species with high relevance were identified. At least 14 species exhibited large ecosystem level effects at local scales. Further, most of them also sustain important fisheries: nearly one/third of these fisheries showed characteristics that may contribute to their lack of sustainability and overexploitation, while half are either in the initial exploitation phase or in the stabilization of extraction and institutionalization phase. Invading species are modifying the structure of mussel habitats. Allocation of spatially explicit management tools, notably Territorial User Rights in Fisheries and Marine Reserves, together with comanagement initiatives, are suggested as relevant tools to fulfill management and conservation objectives for these key bioengineering species.

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Recolonization of experimental gaps by the mussels Brachidontes darwinianus and B. solisianus in a subtropical rocky shore

Cited by 10 publications

References 9 publications

Interspecies comparison of the mechanical properties and biochemical composition of byssal threads

Interspecies comparison of the mechanical properties and biochemical composition of byssal threads

Interação entre processos de colonização e sucessão ecológica de comunidades bioincrustantes na praia de Piedade.

Linking fisheries management and conservation in bioengineering species: the case of South American mussels (Mytilidae)

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