Variability of feeding processes in the cockle Cerastoderma edule (L.) in response to changes in seston concentration and composition

Iglesias, Juan Ignacio Pérez; Urrutia, M.B.; Navarro, Enrique; Alvarez-Jorna, P.; Larretxea, X.; Bougrier, Serge; Héral, Maurice

doi:10.1016/0022-0981(95)00149-2

Cited by 106 publications

(58 citation statements)

References 22 publications

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“…Winter 1973, Bayne et al 1989, Bayne et al 1993, Cl.ausen & Riisgird 1996, Navarro et al 1996. From our perspective, however, we were attempting to elucidate the possible role a selective feeding strategy may have in determining what part of the total seston the mussel is ingesting and the corresponding carbon assimilation efficiency from the 'diet' as selected for by the mussel.…”

Section: Discussionmentioning

confidence: 99%

Feeding response and carbon assimilation by the blue mussel Mytilus trossulus exposed to environmentally relevant seston matrices

Arifin¹,

Bendell-Young²

1997

Mar. Ecol. Prog. Ser.

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The feedlng response of the blue mussel Mytllus trossulus exposed to environmentally relevant seston matnces were studied in the laboratory under flow-through conditions Twelve seston matnces varying In quality and quantity were prepared by mixlng 3 microalga Thalassloslra pseudonand (5, 20 and 150 X 106 cells 1 ') and 4 silt concentrations (0 5 20 and 50 m g 1 ') to represent an increasing seston organic quallty of 10 to 71 and dn increaslilg seston quantity of 1 4 to 56 6 mg I ' Clearance rates (CRs) pseudofaeces (PF) production, sorting efficiency (SEF) ingestion rates (IRs) of particulate organic matter (POhl) and particulate inorganic matter (PIM) and apparent and true carbon ass~milation efflciencies (C-AE0 ,) were determined for the varlous exposure regimes Under conditions of 0 dnd 5 mg 1 ' silt CRs decreased by 3-fold 114 4 to 4 9 1 h ' g ' dry wt (gdw ')I and 6-fold (18 0 to 3 3 1 h ' cldw ') respectively with Increasing seston quality Under condit~ons of hlgh silt loads (20 and 50 m g I-') CRs were independent of increasing seston quallty with maximum CRs (21 8 & 2 2 1 h ' gdw l ) observed at the 20 x lob cells 1 ' and 20 mg l I silt exposures PF production was dependent on seston quantity (r2 -0 63 p < 0 05) with mussels preferentially rejecting the inorganic versus the organic component of the seston This SEF was optlrnized at a seston quality of 40% organic matter As a consequence of this selective feedlng strategy, determined POM IRs under high a l g a e / h~g h s~l t (high quantity/quality) exposure reglmes were comparable to those of the high quality (lust algae) exposures (POM IRs of 48 0 as compaied to 38 1 and 91 3 mg h ' gdbv ' for high quality and high quantity/qual~ty respectively) In contrast mussels exposed to low quahty/quantity seston Ingested both seston components (SEF < 2 4 % ) I e the mussel was non-select~ve possibly ingesting both seston components to meet nutrient requirements Apparent C AE",, expressed as C ,,,,,,, -C , ,,,,., /C ,,,,,,, correlated with seston quality ( '0 POM) (r2 = 0 64, p < 0 05) However, carbon assin~ilation expressed as a true C-AE"o, C,,,,, -C,,,, ,,, iC,,,,,, \vas Independent of seston quality as was carbon assimilation rate (the product of the amount of Ingested organic matter and carbon assim~lation efficiency) Hence through a dynamic interplay between CRs and cai bon a s s~m~l a t i o n effic~ency the blue mussel was able to malntain a constant late of carbon assim~lation regardless of the quality and quantity of sebton to which it was exposed This compensatory feeding strategy displayed by the blue mussel has Impoi tant implications for predictive models w h~c h relate contaminant uptake to a diet/energy pathway Contaminant uptake may be either unde~estimated or overestimated if the abil~ty of the blue mussel to optlmize nutrlent gain under d vanety of seston compositions has not been taken into account KEY LVORDS Myhlus trossulus Feeding behaviour Sorting process Pseudofaeces Ingestion rate Ass~milatlon of carbon

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Section: Discussionmentioning

confidence: 99%

Feeding response and carbon assimilation by the blue mussel Mytilus trossulus exposed to environmentally relevant seston matrices

Arifin¹,

Bendell-Young²

1997

Mar. Ecol. Prog. Ser.

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“…As taxas fisiológicas alimentares do berbigão A. brasiliana foram estimadas segundo a metodologia proposta por Navarro et al (1991) e Iglesias et al (1996) em base de coleta dos biodepósitos (fezes e pseudofezes) além do uso do material particulado total da água natural do ambiente. A nomenclatura e parâmetros utilizados para as estimativas das taxas apresentam a terminologia original na língua inglesa.…”

Section: Taxas Fisiológicasunclassified

“…As taxas de clareamento, filtração, ingestão e egestão de A. brasiliana apresentaram um comportamento padrão estabelecido para os bivalves filtradores quando comparada com a concentração do séston (TPMw) (Navarro & Iglesias 1993, Iglesias et al 1996, Bacon et al 1998, MacDonald et al 1998.…”

Section: Taxas Fisiológicas Alimentares E O Séstonunclassified

“…A partir de 1996, com os trabalhos de Hawkins et al (1996) e Iglesias et al (1996), entre outros, utilizando técnicas de biodepósitos (produção de fezes e pseudofezes), as estimativas das taxas de clareamento e da eficiência de absorção ficaram mais realistas e permitiram um maior detalhamento de subunidades nos processos de alimentação e de obtenção de energia para os organismos. Com esta nova técnica de estudo da fisiologia alimentar, vários trabalhos têm apontado diferenças significativas entre bivalves infaunais com os epifaunais (Hawkins et al 1980, Prins & Smaal 1989, Prins et al 1991, Smaal et al 1997.…”

Section: Introductionunclassified

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Fisiologia alimentar do berbigão Anomalocardia brasiliana (GMELIN, 1791) (MOLLUSCA: BIVALVIA)

Resgalla¹,

Piovezan²

2009

Atlântica

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1CTTMar -Universidade do Vale do Itajaí, UNIVALI. Caixa Ppstal 360, Itajaí, cresgalla@univali.br RESUMO A fisiologia alimentar de bivalves filtradores tem sido pouco investigada para as espécies nativas do Brasil. Entretanto, estas informações são fundamentais nos futuros estudos de cultivo e interpretação das características ecológicas das espécies. Entre as espécies de moluscos infaunais, o bivalve Anomalocardia brasiliana, conhecido popularmente como berbigão, apresenta grande interesse comercial e pouco é conhecido sobre as suas taxas alimentares. Este trabalho apresenta os resultados de quatro experimentos realizados em laboratório utilizando diferentes classes de tamanho de A. brasiliana coletadas em diferentes épocas do ano. A partir dos dados de séston natural, massa de fezes e pseudofezes produzidas e seus respectivos conteúdos orgânicos e inorgânicos foram estimados as taxas de clareamento, filtração, rejeição, ingestão e a eficiência de absorção pelo método de biodepósitos. Observou-se que o berbigão A. brasiliana apresenta comportamento similar à grande maioria de bivalves infaunais investigados no mundo. Entretanto, sua taxa de rejeição mostrou-se independente com a variação do séston o que leva a uma baixa taxa de ingestão em concentrações de séston inferiores a 10 mg.L -1. A baixa capacidade de selecionar a matéria orgânica presente no séston foi atribuído ao alto conteúdo orgânico presente no material particulado em suspensão da Baía Sul da Ilha de Santa Catarina. PALAVRAS CHAVE:Anomalocardia brasiliana, Berbigão, Taxas alimentares, Biodepósitos. ABSTRACT Feeding physiology of the Anomalocardia brasiliana (Gmelin, 1791) (Mollusca: Bivalvia)Little investigation has been carried out on the feeding physiology of filter-feeding bivalves in native species of Brazil. However, this information is essential for future studies on its cultivation, and for the interpretation of ecological characteristics of the species. Among the infaunal mollusk species, the bivalve Anomalocardia brasiliana is of great commercial interest, though little is known about its feeding rate. This work presents the results of four experiments carried out using different size classes of A. brasiliana collected at different times of the year. Based on the data for natural seston, mass of feces and pseudofeces produced and its respective organic and inorganic contents, the clearance rates, filtration, rejection, ingestion and absorption efficiency were estimated by the biodeposit method. It was observed that the A. brasiliana presents similar behavior to the majority of infaunal bivalves investigated worldwide. However, its rejection rate proved to be independent of seston variation, which leads to a low ingestion rate at seston concentrations below 10 mg.L -1. The low capacity to select the organic matter present in the seston was attributed to the high organic content present in the particulate matter in suspension in the Baía Sul of the Ilha de Santa Catarina.

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“…The high concentration of phytoplankton in the field can lead to an increase in suspension activity of bivalve populations and this may have a major effect on phytoplankton abundance (Iglesias et al 1996, Barille et al 2003. Analysis of stable isotopic carbon has also shown that "phytoplankton" can be a main food source of oyster and clam (Koike & Nakajima 1989, Riera & Richard 1996, Hsieh et al 2000, Yokoyama & Ishii 2003, Kasai et al 2004).…”

Section: Introductionmentioning

confidence: 99%

Food sources of the oyster (Crassostrea gigas) and the clam (Ruditapes philippinarum) in the Akkeshi-ko estuary

Kasim

Mukai

2009

Plankton Benthos Res

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Abstract:The gut content was analyzed in order to clarify the potential food sources of the oyster (Crassostrea gigas) and the clam (Ruditapes philippinarum) in the Akkeshi-ko estuary. Benthic diatoms in the diets of oysters were most abundant and accounted for 70% in 2003 and 67% in 2004, followed by pelagic diatoms and dinoflagellates. In gut of clams, benthic diatoms represented 78% in 2003 and 87% in 2004, also followed by pelagic diatoms and dinoflagellates. There are no differences in dietary preference between oyster and clam. There are no significant correlations between phytoplankton compositions in gut of oyster/clam and water column. The Index of electivity was high particularly in dinoflagellates and several species of benthic diatoms such as Amphora sp., Cocconeis scutellum, Nitzschia sp., Paralia sulcata, Rhoicophenia curvata and Thallasiosira sp., Gramatophora marina, and so on.

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Variability of feeding processes in the cockle Cerastoderma edule (L.) in response to changes in seston concentration and composition

Cited by 106 publications

References 22 publications

Feeding response and carbon assimilation by the blue mussel Mytilus trossulus exposed to environmentally relevant seston matrices

Feeding response and carbon assimilation by the blue mussel Mytilus trossulus exposed to environmentally relevant seston matrices

Fisiologia alimentar do berbigão Anomalocardia brasiliana (GMELIN, 1791) (MOLLUSCA: BIVALVIA)

Food sources of the oyster (Crassostrea gigas) and the clam (Ruditapes philippinarum) in the Akkeshi-ko estuary

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