Reproductive pattern of the clams, ruditapes decussatus. Viruslike particles associated with mortalities of the carpetshell clam ruditapes decussatus. Kinetic model of cadmium accumulation and elimination and. Pdf behaviour and biochemical responses of the marine clam.
Bivalvia from two brittany sites are examined here and the seasonal variations. It is distributed worldwide and due to its ecological and economic interest has been proposed as a bioindicator. Pdf morphometric analysis of european clam ruditapes. Each valve is broadly oval or rhomboidal, with the umbones set towards the anterior end. Genetic variation was investigated using allozymes, cytochrome c oxidase subunit i, internal transcribed spacer region 1, and microsatellite markers in mainland and insular populations of the carpet shell ruditapes decussatus from the western and eastern mediterranean basin. Molecular and morphological evidence of hybridization. While it has successfully colonized a large variety of sediment. Intensive fishing for clams began in 1926 and 1927. Gene expression analysis of clams ruditapes philippinarum and ruditapes decussatus following bacterial infection yields molecular insights into pathogen resistance and immunity. Effects of temperature regime on broodstock conditioning.
Isolated from the clams ruditapes philippinarum and ruditapes decussatus. Ruditapes decussatus was carried out for a two years period 20002001. Survivin immunoreactivity in the gastric mucosa of rats feedind with carpet shell clam ruditapes decussatus. A good example of such an introduction is the japanese shortneck clam ruditapes philippinarum, one of the most important fishery resources in the world. Venerupis phlippinarum is an edible species of saltwater clam in the family veneridae, the venus clams. This is a straightforward analysis of several aspects of the mitochondrial genome sequence of this bivalve mollusk. For each species, approximately 30 adult organisms were collected.
Comparison of gametogenic cycles of the endemic european. Review history for the complete mitochondrial genome of. This means that randomly sampled individuals of ruditapes decussatus used in this work showed a much lower mtdna variability than ruditapes philippinarum siblings. The grooved carpetshell clam ruditapes decussatus is native to the northern atlantic and. Ruditapes decussatus, ruditapes philippinarum, salinity, nanoparticles mixture, biomarkers, rnadna ratios. The grooved carpet shell, or palourde clam, ruditapes decussatus, or venerupis decussatus, is a clam or bivalve mollusc in the family veneridae. Pdf behaviour and biochemical responses of the marine. W were selected for this study and oocyte quality was estimated by success of d. This work is among the first to try to determine if the combination salinitynps have a synergistic effect on aquatic organisms. A comparative study of the gametogenic cycles of the clams tapes philippinarum a. The invasive species ruditapes philippinarum manila clam.
Variation of metallothionein and metal concentrations in. Feeding rates of ruditapes decussatus clam larvae from the d shaped stage to metamor phosis were recorded at algal food. It is one of the main native bivalve species cultured in europe. Consumption of ruditapes philippinarum and ruditapes decussatus. Metallothionein mt and metal cd, cu, and zn concentrations were determined in the digestive gland of male and female ruditapes decussatus. Introduced ruditapes philippinarum have become naturalized in many areas of europe, competing with native r. Download fulltext pdf download fulltext pdf behaviour and biochemical responses of the marine clam ruditapes decussatus exposed to phosphogypsum article pdf available in environmental. Download fulltext pdf download fulltext pdf ocean acidification impact on the grooved carpet shell clam ruditapes decussatus article pdf available december 2019 with 58 reads. Abstract the genetic structure of the bivalve ruditapes decussatus was studied at. The reproductive cycle of the european clam ruditapes decussatus l.
This paper reports, for the first time, the complete mitochondrial genome of the grooved carpet shell, ruditapes decussatus, also known as the european clam. European clam ruditapes decussatus is one of the most important bivalve. The use of acetylcholinesterase activity in ruditapes decussatus and mytilus galloprovincialis in the biomonitoring of bizerta lagoon. Effects of temperature regime on broodstock conditioning of. The production is in decline due to several factors such as perkinsiosis and habitat invasion and competition by the introduced exotic species, the manila clam ruditapes philippinarum. A microarraybased analysis of oocyte quality in the.
Uncovering the immunological repertoire of the carpet shell clam. The accumulation of several anthropogenic compounds in their tissues suggests that they possess mechanisms that allow them to cope with the toxic effects of these. Pdf ocean acidification impact on the grooved carpet. Clams were treated with phenobarbital pb, benzoapyrene bap, and 2,2. The clam ruditapes decussatus is distributed worldwide and due to its ecological and economical interest has been proposed as a bioindicator in areas where mussels are not available.
Physiological measurements, clearance rates, respiration rates and absorption efficiency were undertaken at slightly different oxygen partial pressures 11, 6, 3 and 1. Ruditapes philippinarum and ruditapes decussatus under hg. To optimize the conditioning procedure to obtain better larvae with lower production costs, ruditapes decussatus broodstock was conditioned at different periods during the year october c1, february c2, and april c3 under two different controlled temperature regimes. Significant seasonal variations in the content of carbohydrates and free amino acids were observed. Dec 01, 2008 to optimize the conditioning procedure to obtain better larvae with lower production costs, ruditapes decussatus broodstock was conditioned at different periods during the year october c1, february c2, and april c3 under two different controlled temperature regimes. The grooved carpet shell clam ruditapes decussatus l. Pdf the reproductive cycle of the european clam ruditapes. A total of 480 individuals were sampled for each species between january anddecember. Uncovering the immunological repertoire of the carpet.
Ruditapes decussatus is morphologically and ecologically similar. The principal component analysis and the hierarchical clustering revealed three population groups, suggesting that each. Embryonic and larval development of ruditapes decussatus. Genetic responses to metal contamination in two clams.
Contrasted responses of ruditapes decussatus filter and deposit feeding and loripes lacteus symbiotic exposed to polymetallic contamination portcamargue, france. In this study, the metabolome of ruditapes decussatus, an economically and ecologically important marine bivalve species widely distributed in the mediterranean region, was characterized by using proton nuclear magnetic resonance 1hnmr spectroscopy. As a result, an extensive fishery has developed around this species. Survivin immunoreactivity in the gastric mucosa of rats feedind with carpet shell clam ruditapes decussatus topics dardanelles, immunohistochemistry, stomach, carpet shell clam, survivin. Good quality black bars, intermediate quality white bars and poor quality gray bars oocytes. The results of ruditapes decussatus both cycle of nutrients stored and nutrients utilization showed that. Culture of this marine bivalve is clearly limited by the availability of seed juveniles. Pdf the complete mitochondrial genome of the grooved carpet. Morphometric analysis of european clam ruditapes decussatus in.
In the aquatic environment, they are subjected to the presence of different contaminants, such as mercury hg and its methylated form, methylmercury mehg. In this study, the gametogenic cycle of the newly introducedmanila clam ruditapes philippinarum was described for the first time for turkish waters and compared with that of the native european grooved carpet shell clam ruditapes decussatus coexisting in cardak lagoon canakkale, turkey in the dardanelles. The spatial and temporal patterns of recruitment of juvenile clams ruditapes decussatus were investigated in the mediterranean lagoon of thau. The accumulation of several anthropogenic compounds in their tissues suggests that they possess mechanisms that allow them to cope with the toxic effects of these contaminants. Bivalvia to aquaculture clam beds, this species has spread to several sites. Manual annotation of these contigs revealed 146 immunerelated genes.
Despite the large number of animal complete mitochondrial genomes currently available in public databases, knowledge about mitochondrial genomics in invertebrates is uneven. Molecular and morphological evidence of hybridization between. In spain, early records of mollusc fishing and consumption from the 16 th century are mainly about the flat oyster, and only rarely about clams, but they do mention the marketing of clams in portugal and other places. The european grooved carpet clam, ruditapes decussatus linnaeus, 1758, is a commercially important species inhabiting lagoons and sublittoral zones of the mediterranean and the atlantic coasts of europe and northern africa. The harvesting of ruditapes decussatus mainly occurs in spain and france. Clams were collected monthly during the period of sexual development, from june to september, at two different sites of a coastal lagoon, the ria formosa lagoon, on the south coast of portugal. A biomonitor of trace elements pollution in sardinian coastal lagoons italy. Five morphometric parameters and weight of valves were also used to study the distribution of variation. In spain, early records of mollusc fishing tand consumption from the 16h century are mainly about the flat oyster, and only rarely about clams, but. Pdf embryonic and larval development of ruditapes decussatus. The grooved carpetshell clam ruditapes decussatus is native to the northern atlantic and mediterranean sea and has a high commercial value. The regional government of galicia spain has banned the use of manila clam seed for semiextensive use on beaches, and several authorities are. The main objective of the present study was to gain further insights into the immunological repertoire of r. Zipcodezoo this veneridaerelated article is a stub.
Seasonal variations in gross biochemical composition. Apr 01, 2011 the grooved carpet shell clam ruditapes decussatus l. Download fulltext pdf download fulltext pdf morphometric analysis of european clam ruditapes decussatus in morocco article pdf available in aacl bioflux 125. Common names for the species include manila clam, japanese littleneck clam, japanese cockle 2 and japanese carpet shell. The complete mitochondrial genome of the grooved carpet shell. The mitochondrial genome of ruditapes decussatus was not available in the databases, so we used the transcriptome data to generate a draft to be used as a guide for sanger sequencing. In this study, phylogenetic analyses based on sequences of the housekeeping genes rpoa. Inaddition,stocksofmolluscsreportedtosu ermortalities during thestudied periodwerealsoanalyzed and thepathogenic burden determined. Seasonal variation of oxidative stress biomarkers in clams. Seasonal variations in gross biochemical composition, percent. Metabolites free fulltext the effect of season on the. Temporal distribution of potentially pathogenic agents. Genetic structure of the palourde ruditapes decussatus l.
Marine aquaculture and stock enhancement are major causes of the introduction of alien species. Clam stock on the western coast of cotentin english channel the manila clam ruditapes philippinarum adam and reeve 1850 was introduced into france in the 1970s and now dominates the european clam ruditapes decusattus linnaeus 1758 in the intertidal zone of the western cotentin english channel. Illumina reads from all 12 samples were pooled and compared to a set of 20 bivalvia mitochondrial genomes to identify reads with mitochondrial origin. Venerupis phlippinarum is an edible species of saltwater clam in the family veneridae, the venus clams common names for the species include manila clam, japanese littleneck clam, japanese cockle and japanese carpet shell this clam is commercially harvested, being the second most important bivalve grown in aquaculture worldwide. Individual dlarval yield mean sd obtained from 25 females of ruditapes decussatus. Ruditapes decussatus grooved carpet shell harvesting profile historical background the harvesting of ruditapes decussatus mainly occurs in spain and france. The main objective of this study was to evaluate the functional traits regarding bioturbation activity and its influence in the nutrient cycling of the native clam species ruditapes decussatus and. Effects of depuration on the element concentration in bivalves.
Facultative anaerobic marine bacteria isolated from cultured clams ruditapes decussatus and ruditapes philippinarum were previously investigated using aflp and 16s rrna gene sequences analyses. Review history for the complete mitochondrial genome of the. However, annual catch has been declining steadily since the early 1990s. Recruitment of the clam ruditapes decussatus in the lagoon of. A microarraybased analysis of oocyte quality in the european. The clam, ruditapes decussatus is most preferred by consumers in galicia nw spain and also the most valuable. It states that among the synonyms of this species are tapes decussata linnaeus, 1758 and tapes ruditapes decussatus linnaeus, 1758. International journal of systematic and evolutionary microbiology 61 10. Comparative biochemistry and physiology part c, , 227235. The complete mitochondrial genome of the grooved carpet. Uncovering the immunological repertoire of the carpet shell. The complete mitochondrial genome of the grooved carpet shell, ruditapes decussatus bivalvia, veneridae article pdf available in peerj 51. Preliminary results on the growth and survival of the.
Its reproductive cycle and that of a native clam species, ruditapes decussatus mollusca. Gene expression analysis of clams ruditapes philippinarum and. A temporal distribution of the potentially pathogenic agentsweredet erminedbyhistologicalan alysis. The grooved carpet shell clam ruditapes decussatus is the autochthonous european clam and the most appreciated from a gastronomic and economic point of view. Pdf the embryonic and larval development of ruditapes decussatus, from. A previous analysis on the cox1 gene of ruditapes decussatus reported a nucleotide diversity. The following is the supplementary data related to this article. The aim of the present study was to determine the response of metallothionein mt during cd accumulation and elimination in different tissues of the estuarine bivalve ruditapes decussatus exposed to two nominal cd concentrations 4 and 40.
Contrasted responses of ruditapes decussatus filter and. Pdf ocean acidification impact on the grooved carpet shell. Garciatrace metals in the bivalve molluscs ruditapes decussatus and ruditapes philippinarum from the atlantic. It is distributed worldwide and due to its ecological and economic interest has been proposed as a bioindicator this species is one of the most popular and profitable mollusc of lagoonal and coastal sites in the mediterranean, where it was collected. Pdf consumption of ruditapes philippinarum and ruditapes. To understand the seasonality of its nutritional value, thus providing an improved basis for economic valuation of the resource, gross biochemical composition. The native species ruditapes decussatus and the invasive species ruditapes philippinarum have an important ecological role and socioeconomic value, from the atlantic and mediterranean to the indopacific region. The isolates formed two aflp clusters and belonged to the genus vibrio, more precisely to the splendidus clade.
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