Temperature effects on summer growth rates in the Antarctic scallop, Adamussium colbecki

Heilmayer, Olaf; Honnen, C.; Jacob, Ute; Chiantore, Mariachiara; Cattaneo‐Vietti, Riccardo; Brey, Thomas

doi:10.1007/s00300-005-0716-7

Cited by 42 publications

(27 citation statements)

References 32 publications

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“…However, temperature did not explain variations in growth performance, suggesting decreased growth efficiency with increasing temperature (Heilmayer et al 2004). Still, Heilmayer et al (2005) argued that growth rates of juvenile Antarctic scallops Adamussium colbecki were positively affected by temperature; unfortunately, however, their study did not take into account the potential role of food.…”

Section: Introductionmentioning

confidence: 91%

Seasonal growth variation in Chlamys islandica (Bivalvia) from sub-Arctic Greenland is linked to food availability and temperature

Blicher¹,

Rysgaard²,

Sejr³

2010

Mar. Ecol. Prog. Ser.

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In order to assess the role of different environmental parameters in the population dynamics of marine invertebrates in the Arctic, we examined seasonal variation in individual biomass, shell growth, and mass production of somatic and reproductive tissues of immature and maturing scallops Chlamys islandica suspended in culture nets at 15 and 30 m depth in SW Greenland from May 2007 to October 2008. All 3 parameters varied both seasonally and between depths. Individual shell growth rate and biomass were poor proxies for the actual mass growth rate on a seasonal scale. Minimum and maximum mass growth rates were observed from November to February and in April-May, respectively. Simultaneous monitoring of biotic and abiotic parameters in the water column made it possible to establish a growth model relating variation in mass growth rate to variation in environmental conditions. The best-fit model (R 2 = 0.71) indicated that total mass growth rate depended on chlorophyll a concentration, carbon-to-nitrogen ratio of seston, and water temperature. While availability of high-quality food items affected growth positively, the growth model indicated a negative effect of increasing temperature on the mass growth rate of C. islandica. These results indicate that scallops in SW Greenland are resource-limited and that elevated temperature through its effect on metabolic costs reduces growth efficiency. Hence, it is most likely that the growth capacity of C. islandica in SW Greenland is either never realized or only attained for short periods of time (hours to days) under the present conditions. KEY WORDS: Bivalve · Scallop · Temporal dynamics · Production · Food availability · Sub-Arctic · Pectinid · Temperature · Shell growth Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 407: [71][72][73][74][75][76][77][78][79][80][81][82][83][84][85][86] 2010 tion (Rysgaard et al. 1999, Dagg et al. 2004, Wassmann et al. 2006, Arrigo et al. 2008, potentially leading to altered food conditions for secondary producers. Low temperature is considered an important component of high-latitude marine environments, affecting physiological rates of ectotherms at all trophic levels (Gillooly et al. 2001). Thus, it might be expected that future changes in ocean temperature and food availability in the Arctic will affect the productivity of secondary producers (Blicher et al. 2007). However, the combined effect may not be straightforward. Hence, it is still debated whether the apparent temperature-dependence of the basal metabolism of ectotherms is solely a consequence of thermodynamics, or if the processes involved in metabolism have been subject to evolutionary adaptation to maximize production in a given environment, i.e. maximizing the difference between energy intake and metabolic costs (e.g. Clarke & Johnston 1999, Gillooly et al. 2001, Clarke 2003. In any case, it seems likely that the effect of increasing temperature on organism growth is dependent on the ability of an organism to co...

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Section: Introductionmentioning

confidence: 91%

Seasonal growth variation in Chlamys islandica (Bivalvia) from sub-Arctic Greenland is linked to food availability and temperature

Blicher¹,

Rysgaard²,

Sejr³

2010

Mar. Ecol. Prog. Ser.

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“…Only rings that could be traced around to the prodissoconch were counted. Growth was estimated based on the assumption that growth bands are laid down annually (Picken 1980;Brey and Hain 1992;Heilmayer et al 2005), allowing a relationship between size and age to be determined. Size and growth rings for 603 randomly selected individuals were recorded.…”

Section: Sample Collectionmentioning

confidence: 99%

“…The tests of diatoms were Brey and Hain 1992) evident in the gut in many of the sections indicating that the animals had recently ingested phytoplankton. Not only was this feeding directly fuelling reproduction and growth, but it may provide a source of energy throughout the winter months when food supply is greatly reduced (Heilmayer et al 2005). Tissues surrounding the gonads were found to contain high concentrations of nutrients, presumably lipids (Fig.…”

Section: Gametogenesis and Developmentmentioning

confidence: 99%

Growth and reproduction in the Antarctic brooding bivalve Adacnarca nitens (Philobryidae) from the Ross Sea

et al. 2009

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We present information on the reproductive biology, population structure, and growth of the brooding Antarctic bivalve Adacnarca nitens Pelseneer 1903, from the Ross Sea, Antarctica. Individuals ranging from 0.85 to 6.00 mm were found attached to a hydrozoan colony. This species shows low fecundity and large egg size, common to other brooding species. The minimum size at which oogenesis was detected was 2.3 mm and the minimum size at which brooding was evident was 3.9 mm. Embryos of a full range of developmental stages were brooded simultaneously in females. The population showed a log-normal distribution and results suggest non-periodic reproduction with continuous embryonic development. The reproductive traits of A. nitens are discussed in the context of circumAntarctic species distribution and limitations to dispersal in brooding benthic invertebrates.

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“…The living member of the genus, the circum−Antarctic species Adamussium colbecki (Smith, 1902), was the subject of several studies focusing on its geographical distribution (Schiaparelli and Linse 2006), systematics (Barucca et al 2005), ecology (Stockton 1984), physiology (Chiantore et al 2003;Heilmayer et al 2005) and environmental anal− ysis (Corsi et al 2004;Caroli and Bottoni 2010).…”

Section: Introductionmentioning

confidence: 99%

A new fossil Adamussium (Bivalvia: Pectinidae) from Antarctica

Quaglio¹,

Whittle²,

Gaździcki³

et al. 2010

Polish Polar Research

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Adamussium jonkersi sp. nov. is described from the Late Oligocene Destruc− tion Bay Formation, Wrona Buttress area, King George Island (South Shetlands), West Antarctica. The unit, characterized by volcanic sandstone, is a shallow marine succession deposited in a moderate− to high−energy environment. The thin−shelled pectinids, col− lected from the lower part of the unit, are preserved mostly as complete valves. Shell thickness, sculpture pattern and umbonal angle suggest a free−living, inactive swimming life habit.

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Temperature effects on summer growth rates in the Antarctic scallop, Adamussium colbecki

Cited by 42 publications

References 32 publications

Seasonal growth variation in Chlamys islandica (Bivalvia) from sub-Arctic Greenland is linked to food availability and temperature

Seasonal growth variation in Chlamys islandica (Bivalvia) from sub-Arctic Greenland is linked to food availability and temperature

Growth and reproduction in the Antarctic brooding bivalve Adacnarca nitens (Philobryidae) from the Ross Sea

A new fossil Adamussium (Bivalvia: Pectinidae) from Antarctica

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