Influence of Sediment and Algal Food on Cultured Juvenile Freshwater Mussels

Gatenby, Catherine M.; Neves, Richard J.; Parker, Barry

doi:10.2307/1467810

Cited by 64 publications

(72 citation statements)

References 20 publications

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“…Coincidentally, growth was greater in PVC cages than individual tubes in the summer deployment (DP-3); however, we did not see a difference in growth between the two deployment types in the winter (DP-4) and lack data to make comparisons for other seasons. Another aspect of the mesh substrate boxes used by Hull et al (2004) was that they may have better facilitated pedal-feeding behavior (use of the foot to obtain food directly from substrate), which has been shown to be an important aspect of the ecology of Asiatic clams (Hakenkamp and Palmer 1999) and other bivalves (Yeager and Cherry 1994;Gatenby et al 1996). Pedal-feeding behavior by clams in our study may have been restricted as a result of confinement in individual mesh compartments.…”

Section: Growth and Survivalmentioning

confidence: 88%

Evaluation of Using Caged Clams to Monitor Contaminated Groundwater Exposure in the Near-Shore Environment of the Hanford Site 300 Area

Larson¹,

Poston²,

Tiller³

2008

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Section: Growth and Survivalmentioning

confidence: 88%

Evaluation of Using Caged Clams to Monitor Contaminated Groundwater Exposure in the Near-Shore Environment of the Hanford Site 300 Area

Larson¹,

Poston²,

Tiller³

2008

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“…Adult unionids have displayed an ability to sort algae prior to ingestion based on cellular characteristics, such as size, shape, chemical constituents, structure components and specific aggregation properties (Paterson, 1984(Paterson, , 1986Miura and Yamashiro, 1990;Gatenby et al, 1996;Baker et al, 2000;Baker and Levinton, 2003).…”

Section: Phytoplankton Compositionmentioning

confidence: 99%

“…In summary, algal species have been incorporated, in several works, into the design of direct or recirculating systems of juvenile cultures as the primary food source, due to their apparent significance in the diet of unionoids (Hudson and Isom, 1984;Gatenby et al, 1996Gatenby et al, , 1997O'Beirn et al, 1998;Tankersley and Butz, 2000;Henley et al, 2001;Kovitvadhi et al, 2008).…”

Section: Algal Diet Perspectivesmentioning

confidence: 99%

Phytoplankton composition of the water and gastrointestinal tract of the mussel Diplodon enno (Ortmann, 1921) from São Francisco river (Bahia, Brazil)

Alves

Lima

et al. 2016

Braz. J. Biol.

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The knowledge on diet composition of the freshwater mussel Diplodon enno (Ortmann) would aid in its culture and propagation allowing, this way, the replacement of natural endangered populations in Brazil. Microalgae are the main food source for captive mussels and unionids have displayed an ability to sort algae based on the cellular characteristics prior to ingestion. The main objective of the present work is to analyze the phytoplankton composition of the water from and of the gastrointestinal contents of the mussel D. enno, as an initial step for development of a suitable rearing diet. Therefore, water samples and bivalve specimens were collected from S. Francisco River, city of Paulo Afonso, Bahia, Brazil. The microalgal composition found in water and stomach/gut content samples was very diverse being represented by the following divisions: Cyanophyta, Chlorophyta, Dinophyta and Heterokontophyta (Diatoms). Concerning the relative abundance of microalgae divisions, it is possible to state, for the water and gastrointestinal contents, that Cyanophyta represents 15% and 14%, Chlorophyta 54% in both, Heterokontophyta 31% and 27% and Dinophyta 0% and 5%, respectively. According to the Brazilian CETESB criteria for phytoplankton species classification, 50% of Cyanophyta and 15% of Chlorophyta species observed in the water samples were classified as "very frequent", as were 68% of Heterokontophyta and 33% of Chlorophyta species in the gut/stomach tract samples. Focusing at a species level, although in the water only Coelastrum sp. and Chroococcus sp. were observed in 100% and 75% of the samples, respectively, in the gastrointestinal tract the species Staurastrum sp., Aulacoseira sp., Scenedesmus sp. and Fragilaria crotonensis occurred in 80% to 100% of the samples. The present results showed that D. enno feeds not only on small chlorophytes microalgae, due to their convenient size that facilitates higher feeding rates, but also on large size diatoms, due to a possible nutritional advantage for the bivalves. Thus, a diet composed by large diatoms and small chlorophytes microalgae may be considered as the most reasonable for the maintenance of D. enno populations.Keywords: phytoplankton, gastrointestinal tract, Diplodon enno, São Francisco River. Composição fitoplanctônica da água e do trato gastrointestinal do moluscoDiplodon enno (Ortmann) do rio São Francisco (BA -Brasil) ResumoO conhecimento da composição da dieta do molusco de água doce Diplodon enno é de extrema importância para a sua cultura e propagação, permitindo desta forma a recuperação de populações em perigo de extinção no Brasil.As microalgas são a principal fonte de alimento para moluscos filtradores e os uniónidos sendo selecionadas por estes com base nas suas características celulares. O principal objectivo deste trabalho é analisar a composição fitoplanctônica da água e do conteúdo gastrointestinal do molusco D. enno, de forma a desenvolver uma dieta apropriada ao seu cultivo. Para isso, amostras de água e espécimes de bivalves foram recolh...

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“…Phytoplankton has proven to be a vital source of nutrient for several species of freshwater mussel juveniles (Hudson & Isom, 1984;Gatenby et al, 1996;Gatenby et al, 1997;ÓBeirn et al, 1998;Uthaiwan et al, 2001). Moreover, Kovitvadhi et al (2000) reported that phytoplankton contributed to 99% of the gastrointestinal tract content of the adult freshwater pearl mussel, H. (L.) myersiana in natural habitat.…”

Section: Selection Of Phytoplankton Food Species For Juvenilesmentioning

confidence: 99%

“…Phytoplankton was found in the gastrointestinal tract, which it was a source of nutrient for several species of freshwater mussel (Hudson and Isom, 1984;Gatenby et al, 1996;Gatenby et al, 1997;ÓBeirn et al, 1998;Kovitvadhi et al, 2000Kovitvadhi et al, , 2001. This finding is consistent with gut content analyses from other bivalve species (Gale & Lowe, 1971;Huca et al, 1983;Paterson, 1986;Parker et al, 1998).…”

Section: Phytoplankton Communitiesmentioning

confidence: 99%