Influence of temperature and food availability on the ecological energetics of the giant scallop Placopecten magellanicus. II. Reproductive output and total production

MacDonald, B. A.; Thompson, R.J.

doi:10.3354/meps025295

Cited by 132 publications

(52 citation statements)

References 17 publications

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“…Our results indicate a significant seasonality of metabolic activity in A. opercularis, as previously observed for many boreal scallops (MacDonald and Thompson, 1985;Bricelj et al, 1987;Shumway et al, 1988). Such seasonal cycles in metabolism result from complex interactions of environmental and endogenous variables acting on the metabolism (for review, see Bayne and Newell, 1983).…”

Section: Metabolic Ratessupporting

confidence: 74%

“…5a), as previously observed for other scallop species, too, e.g. Mimachlamys varia (Shafee, 1982), Mizuhopecten yessoensis (Fuji and Hashizume, 1974) and Placopecten magellanicus (MacDonald and Thompson, 1985Thompson, , 1988Claereboudt and Himmelman, 1996). The general decrease of somatic growth with increasing age (Calow, 1977) is not necessarily caused only by a shift between P s and P g (Fig.…”

Section: Individual Energy Budget Modelsupporting

confidence: 62%

“…Data sources: CLL: Adamussium colbecki (Stockton, 1984;Berkman, 1990;Chiantore et al, 2003), Chlamys albidus (Myasnikov and Kochnev, 1988), Chlamys hastata (MacDonald et al, 1991), Chlamys islandica (Vahl, 1981;Lambert and Préfontaine, 1995), Chlamys rosealbus (Silina and Pozdnyakova, 1990); WSL: Amusium spp. (Heald and Caputi, 1981;Williams and Dredge, 1981;DelNorte, 1991); Argopecten purpuratus (Mendo and Jurado, 1993;Wolff, 1987;Yamashiro and Mendo, 1988); TLL: Mizuhopecten yessoensis (Golikov and Scarlato, 1970;Ventilla, 1982;Yoo et al, 1981, cited by Vakily, 1992, Patinopecten caurinus (MacDonald and Bourne, 1987;Ignell and Haynes, 2000), Pecten maximus (Buestel and Laurec, 1975;Dare, 1990;Dare and Deith, 1990;Allison, 1994), Placopecten magellanicus (Brown et al, 1972;Jamieson, 1979;Jamieson et al, 1981;D'Amours and Pilote, 1982;Chouinhard, 1984: all cited in Naidu, 1991MacDonald and Thompson, 1985;Claereboudt and Himmelman, 1996); TSL: Aequipecten opercularis (Ursin, 1956;Lee, 1973;Antoine, 1979;Aravindakshan, 1955;Askew et al, 1973, all cited by Shumway, 1991;…”

Section: Metabolic Ratesmentioning

confidence: 99%

“…Gonad production ( P G,i ) for each age class was estimated from the decline of gonad mass during spawning in scallops of given age (determined from the von Bertalanffy equation describing shell height as a function of age), determined from logarithmic regressions of gonad mass to size before (M G,i (before) ; February) and after spawning (M G,i (after) ; June) (1 g gonad DM = 23.4 kJ; average from: MacDonald and Thompson, 1985;MacDonald et al, 1991):…”

Section: Production (P)mentioning

confidence: 99%

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Population dynamics and metabolism of Aequipecten opercularis (L.) from the western English Channel (Roscoff, France)

Heilmayer

Brey

Storch

et al. 2004

Journal of Sea Research

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Population dynamics of the queen scallop, Aequipecten opercularis, was investigated in the western English Channel off Roscoff. Annual formation of natural growth rings on the shell surface was validated by stable isotope (y 18 O and y 13 C) analysis. A von Bertalanffy growth function (H t = 58.9 mm . (1Àe À 0.604.(t + 0.235) )) was fitted to size-at-age data of 249 individuals. Annual somatic and gonad production amounted to 19.74 kJ m À 2 and 0.98 kJ m À 2 y À 1 , respectively. Total mortality rate Z was estimated to be 1.716 y À 1 . Net growth efficiencies (ranging from 45% in 1-y-old to 11% in 6-y-old individuals) were in the same range as in other short-lived scallops. Individual growth, however, was distinctly slower in this population than in other A. opercularis populations from similar latitudes, most likely due to a more stressful environment. D

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Section: Metabolic Ratessupporting

confidence: 74%

Section: Individual Energy Budget Modelsupporting

confidence: 62%

Section: Metabolic Ratesmentioning

confidence: 99%

Section: Production (P)mentioning

confidence: 99%

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Population dynamics and metabolism of Aequipecten opercularis (L.) from the western English Channel (Roscoff, France)

Heilmayer

Brey

Storch

et al. 2004

Journal of Sea Research

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“…In the case of the variance observed in the soft tissue mass, the equation model showed that this variance was related positively to POM and inversely to temperature, confirming that food availability and temperature are the most influential factors in the good condition of bivalves (BAYNE;NEWELL, 1983;THOMPSON, 1985;MALACHOWSKI, 1988;JARAMILLO et al, 1993;HIMMELMAN, 2000;ARRIECHE et al, 2002). Regarding POM as a food source for mussels, this aspect can be attributed to that described by CRANFORD and GRAND (1990), that although the phytoplankton is an important source of food, organic seston is an alternative energy source for bivalves.…”

Section: Discussionmentioning

confidence: 94%

Comparative performance of the mussels Perna perna and Perna viridis, cultivated at four different depths

et al. 2016

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García et al.: Comparative culture of P. perna and P. viridis 249Comparative performance of the mussels Perna perna and Perna viridis, cultivated at four different depths This study aims to evaluate the effect of environmental variability on the growth and survival of the subtropical and tropical mussels Perna perna and Perna viridis at four different culture depths in the Gulf of Cariaco during an annual cycle. Juveniles of P. perna (39.1±1.88 mm in shell length) and P. viridis (36.7±1.87 mm) were sown on nylon ropes (3/4") and suspended from a raft at 1, 3, 6 and 9 m depths. Every six weeks, three replicates of each species were sampled (10 individuals per replicate) at each depth. Growth parameters were determined: mass and shell length, dry mass of soft tissues as well as fouling and survival rates. Temperature, transparency, chlorophyll a, oxygen, salinity and particulate organic and inorganic matter were recorded at each culture depth for the purpose of relating growth and survival to environmental change. The results show that the growth of both species was linked to the environment, especially with regard to the influence of the food and temperature. A period of stagnant growth of P. perna was associated with the higher temperature and lower phytoplankton biomass that is characteristic of the season with prevalent water column stratification (August-November 2007). By contrast, the growth of P. viridis did not stagnate, although it was gradual and relatively lower. At the end, P. perna achieved higher growth rates than P. viridis. Possible culture strategies to improve the production of both mussel species are discussed. AbstrAct

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Oceanographic variation influences spatial genomic structure in the sea scallop, Placopecten magellanicus

Wyngaarden

Snelgrove

DiBacco

et al. 2018

Ecology and Evolution

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Environmental factors can influence diversity and population structure in marine species and accurate understanding of this influence can both improve fisheries management and help predict responses to environmental change. We used 7163 SNPs derived from restriction site‐associated DNA sequencing genotyped in 245 individuals of the economically important sea scallop, Placopecten magellanicus, to evaluate the correlations between oceanographic variation and a previously identified latitudinal genomic cline. Sea scallops span a broad latitudinal area (>10 degrees), and we hypothesized that climatic variation significantly drives clinal trends in allele frequency. Using a large environmental dataset, including temperature, salinity, chlorophyll a, and nutrient concentrations, we identified a suite of SNPs (285–621, depending on analysis and environmental dataset) potentially under selection through correlations with environmental variation. Principal components analysis of different outlier SNPs and environmental datasets revealed similar northern and southern clusters, with significant associations between the first axes of each (R 2 adj = .66–.79). Multivariate redundancy analysis of outlier SNPs and the environmental principal components indicated that environmental factors explained more than 32% of the variance. Similarly, multiple linear regressions and random‐forest analysis identified winter average and minimum ocean temperatures as significant parameters in the link between genetic and environmental variation. This work indicates that oceanographic variation is associated with the observed genomic cline in this species and that seasonal periods of extreme cold may restrict gene flow along a latitudinal gradient in this marine benthic bivalve. Incorporating this finding into management may improve accuracy of management strategies and future predictions.

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Influence of temperature and food availability on the ecological energetics of the giant scallop Placopecten magellanicus. II. Reproductive output and total production

Cited by 132 publications

References 17 publications

Population dynamics and metabolism of Aequipecten opercularis (L.) from the western English Channel (Roscoff, France)

Population dynamics and metabolism of Aequipecten opercularis (L.) from the western English Channel (Roscoff, France)

Comparative performance of the mussels Perna perna and Perna viridis, cultivated at four different depths

Oceanographic variation influences spatial genomic structure in the sea scallop, Placopecten magellanicus

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