Reproduction and larval development in two Pecten maximus (L.) populations from Brittany

Paulet, Yves-Marie; Lucas, Albert; Gérard, André

doi:10.1016/0022-0981(88)90229-8

Cited by 87 publications

(44 citation statements)

References 26 publications

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“…This species is a ubiquitous marine mollusk that range from Spain to Norway and resides in water depths of 0 to 500 m. The biology of the scallop is well understood in terms of growth rate, reproduction and energy allocation (Paulet et al, 1988;Chauvaud et al, 1998;Saout et al, 1999;Lorrain et al, 2002). P. maximus has a high growth rate (up to 400 µm.day -1 along the shell's dorso-ventral axis) and produces daily growth bands from spring to fall (Chauvaud et al, 1998;Chauvaud et al, 2005).…”

Section: Used the Manila Clam (Venerupis Philippinarum)mentioning

confidence: 99%

Coupling experimental and field-based approaches to decipher carbon sources in the shell of the great scallop, Pecten maximus (L.)

Marchais

Richard

Jolivet

et al. 2015

Geochimica et Cosmochimica Acta

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This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. AbstractThis research investigated how the carbon isotopic composition of food source ( 13 C food ) and dissolved inorganic carbon ( 13 C DIC ) influences the carbon isotopic composition of Pecten maximus shells ( 13 C shell ) under both experimental and natural conditions. The objectives are to better understand the relationship between P. maximus and its environment, and to specifically distinguish conditions under which calcification is influenced by respired CO 2 derived from food sources versus conditions in which calcification uses inorganic carbon from seawater. Laboratory experiment investigated carbon incorporation into shell carbonates by maintaining scallops under conditions where the stable carbon isotopic composition of food sources was considerably depleted (-54‰), relative to values observed in the natural environment (-21‰). Laboratory experiment ran for 78 days under three temperature conditions, 15°C, 21°C and 25°C. A survey of the environmental parameters and stable carbon isotopic composition into shell carbonate of natural population of P. maximus was also realized during the same year in the Bay of Brest, France. Data collected from both laboratory experiment and the natural environment confirmed that both  13 C DIC and  13 C food influence  13 C shell values and that organic carbon incorporation (C M ) averages about 10% (4.3 to 6.8% under experimental conditions and 1.9 to 16.6% in the natural environment). The shift in stable carbon isotopic composition from the uptake of depleted food sources under experimental conditions realized a marked divergence in the predicted equilibrium between calcium carbonate and 2 ambient bicarbonate, relative to the natural environment. This offset was 1.7 ± 0.6‰ for scallops in their natural environment and 2.5 ± 0.5 and 3.2 ± 0.9‰ for scallops under experimental conditions at water temperatures of 15 and 21°C, respectively. The offset of 3‰ for scallops subjected to laboratory experiment could not be explained in light of growth rate but may be related to food supply and/or temperature. Food source and temperature effects may also explain the annual variation observed in C M values measured from scallops in their natural environment. C M estimation from the natural population of P. maximus varied seasonally from around 2% at the end of winter, to 12% in summer. The seasonal variation resembles variability in the carbon isotopic composition of the food sources throughout the year with an exception at the end of winter.

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Section: Used the Manila Clam (Venerupis Philippinarum)mentioning

confidence: 99%

Coupling experimental and field-based approaches to decipher carbon sources in the shell of the great scallop, Pecten maximus (L.)

Marchais

Richard

Jolivet

et al. 2015

Geochimica et Cosmochimica Acta

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“…Strong evidence has been reported to support genetic isolation of the population from Saint Brieuc (Paulet et at., 1988;Cochard & Devauchelle, 1993). The St Brieuc native scallops have a very discrete reproductive period in the summer, in contrast to scallops in most other areas, which have spawn over a long period of the year.…”

Section: Resultsmentioning

confidence: 91%

“…Spawning of scallops from other populations, including those of neighbouring areas (e.g. Rade of Brest), is much less synchronized and extends over a long period (Paulet et al, 1988). It was proposed that genetic as well as environmental parameters were responsible for differences in reproductive behaviour.…”

Section: Introductionmentioning

confidence: 99%

Mitochondrial DNA from the scallop Pecten maximus: an unusual polymorphism detected by restriction fragment length polymorphism analysis

Rigaa

Cellos²,

Monnerot

1997

Heredity

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We present an analysis of mitochondrial DNA diversity within the scallop Pecten inaximus. Twenty-seven individuals of Pecten maximus were sampled from three populations from the west coast of Brittany (France) and their mtDNA assayed for restriction site polymorphism. Thirty-four variable and conserved cleavage sites have been mapped. They occur in the coding region as well as in the noncoding one, which has also previously been shown to be variable in length. Nucleotide divergence between two P maximus mtDNA types can reach 3.4 per cent and the nucleotide diversity is 1 per cent. Data using seven restriction endonucleases clearly distinguished 27 genotypes; each individual possessed a unique mitochondrial genotype. Phylogenies derived from mtDNA restriction analysis are not concordant with data on reproductive behaviour or ecological studies. The three populations sampled present similar distributions of the different mitochondrial genotypes, although the scallop stock of the Bay of Saint Brieuc is considered, from physiological parameters, to be genetically distinct from all other populations. Therefore, we suggest that P maximus should fall into category IV of phylogeographical pattern, i.e. continuous mtDNA genotypes with a high gene flow.

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“…The gonads appeared to have subsequently recovered (regenerated) rapidly before the main spawning event took place about a month later. This phenomenon of a small GSI or gonad weight reduction (spawning) and recovery prior to the main spawning was also seen in the scallops Chlamys opercularis, C. islandica, Amusium japonicum balloti, Pecten alba, and P. maximus (Taylor & Venn 1979, Dredge 1981, Sundet & Lee 1984, Sause et al 1987, Paulet et al 1988, and several other bivalve species such as green mussel Perna viridis, ribbed mussel Geukensia demissa, and northern quahog Mercenaria mercenaria (Lee 1988). An early spawning event may be a reproductive strategy of 'bet-hedging' whereby these species release a small portion of their gametes on the chance that the larvae may encounter favourable conditions for survival.…”

Section: Intra-annual Patternmentioning

confidence: 80%

“…These include gonad weights (wet or dry) and indices based on gonad weight as a percentage of total soft body weight, muscle weight, somatic weight, shell height, or shell weight (Skreslet & Brun 1969, Thompson 1977, Robinson et al 1981, Reninger 1987, Wilson 1987, Paulet et al 1988, Dupaul et al 1989). For consistency a GSI using gonad weighthoft body weight would be most useful (Giese & Kanatani 1987).…”

Section: Long-term Patternmentioning

confidence: 99%

Intra-annual and long-term patterns in the reproductive cycle of giant scallops Placopecten magellanicus (Bivalvia: Pectinidae) from Passamaquoddy Bay, New Brunswick, Canada

Parsons¹,

Robinson²,

Chandler³

et al. 1992

Mar. Ecol. Prog. Ser.

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The reproductlve cycle of glant scallops Placopecten magellan~cus was examlned over a 13 yr perlod from 1978 to 1990 at several sltes wlthln Passamaquoddy Bay New Brunswick Gonosomatlc Index (GSI) and gonad weight were obtalned from scallops sampled approximately monthly From 1985 to 1990 samples were collected every 2 wk durlng the gonad r l p e n~n g and about weekly durlng the spawning perlod Scallops In Passamaquoddy Bay had one main spawnlng perlod between July and September wlth peak spawning occurnng durlng August Spawnlng was not a cont~nuous and complete process but was ~ntermlttent, wlth 2 to 3 spawnlng events There was concordance between these spawnlng events and the lunar/tldal cycle s u g g e s t~n g a tldally related spabvnlng cue Spawnlng was h~g h l y synchronous wlthln local populatlons between sexes, and wlthln the bay Onset duratlon and penodlclty of spawnlng were also slmllar between years The long-term GSI pattern and maxlmum level In the reproduct~ve cycle of glant scallops from Passamaquoddy Bay were annually consistent Thelefore ~t appears that In Passamaquoddy Bay changes In potential reproductlve output (Independent of s u e and numbers) may not be as Important In the determlnatlon of recruitment for scallops as factors operating at other llfe-hlstory stages

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Reproduction and larval development in two Pecten maximus (L.) populations from Brittany

Cited by 87 publications

References 26 publications

Coupling experimental and field-based approaches to decipher carbon sources in the shell of the great scallop, Pecten maximus (L.)

Coupling experimental and field-based approaches to decipher carbon sources in the shell of the great scallop, Pecten maximus (L.)

Mitochondrial DNA from the scallop Pecten maximus: an unusual polymorphism detected by restriction fragment length polymorphism analysis

Intra-annual and long-term patterns in the reproductive cycle of giant scallops Placopecten magellanicus (Bivalvia: Pectinidae) from Passamaquoddy Bay, New Brunswick, Canada

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