Carbon isotope signatures reveal that diet is related to the relative sizes of the gills and palps in bivalves

Compton, Tanya J.; Kentie, Rosemarie; Storey, Andrew; Veltheim, Inka; Pearson, Grant; Piersma, Theunis

doi:10.1016/j.jembe.2008.03.011

Cited by 27 publications

(16 citation statements)

References 68 publications

(78 reference statements)

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“…This is also evident from the lack of significant relationship between the δ 13 C values for muscle and age or size because of the small variability in the δ 13 C isotopic values. These results however are not supported by previous dietary studies using bivalves [31,32], where carbon isotope ratios showed greater differences than nitrogen isotope ratios. The large differences in δ 15 N between young and adult scallops may suggest that they preferred different food sources but to some extent, scallops still occupied the same trophic position (2.3-2.7).…”

Section: Resultscontrasting

confidence: 99%

Nitrogen stable isotopes reveal age-dependent dietary shift in the Japanese scallop Mizuhopecten yessoensis

Aya

Kudo

2016

Isotopes in Environmental and Health Studies

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Ontogenetic niche shifts in diet are a consequence of changes in body size or resource partitioning between age classes. To better resolve the feeding patterns of the Japanese scallop Mizuhopecten yessoensis, we examined the relative importance of age and size in the diet of this species using stable isotope ratios of carbon (δC) and nitrogen (δN) from 2006 to 2009. Contribution of food sources was quantified using an isotope mixing model by comparing the muscle tissue isotope ratios to those of suspended particulate organic matter (SPOM) and their zooplankton prey (e.g. micro- and meso-zooplankton). Unlike the δC values, which remained constant with age and size, muscle δN values were more positively correlated with age accounting for 69 % of variations than size with only 46 %. Increasing N values with age suggested that shifts in diet from SPOM to micro- and meso-zooplankton occurred during ontogeny in M. yessoensis. Results of the isotope mixing model indicated that SPOM contribution to scallop's diet decreased from 68 to 8 % while those of zooplankton increased from 15 to 50 % with increasing age. This study concludes that age-related dietary shift explains the enrichment ofN, as a result of predation on zooplankton by M. yessoensis.

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Section: Resultscontrasting

confidence: 99%

Nitrogen stable isotopes reveal age-dependent dietary shift in the Japanese scallop Mizuhopecten yessoensis

Aya

Kudo

2016

Isotopes in Environmental and Health Studies

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“…These are (1) three guilds of grazers (chitons; limpet‐like gastropods including haliotids and patellogastropods; and coiled trochoidean and littorinid gastropods); (2) ten guilds of suspension‐feeders (byssally attached epifaunal mytilid mussels; oysters and oyster‐like cemented bivalves; pectinid scallops; nonsiphonate shallow‐burrowing bivalves in Arcoida and Crassatelloidea; siphonate shallow‐burrowing veneroidean bivalves; active shallow‐burrowing cardiid bivalves; shallow‐burrowing active mactrid bivalves; deep‐burrowing mactrid and myoidean bivalves; epifaunal calyptraeid slipper limpets; and high‐spired epifaunal to shallowly burrowing turritellid gastropods); (3) deposit‐feeders (tellinoidean bivalves); (4) chemosymbiotic bivalves (lucinids and thyasirids); and (5) four guilds of predators (drilling soft‐bottom naticids; drilling muricids, mainly on hard bottoms; shell‐wedging and generalized predatory buccinoidean whelks; and shell‐enveloping volutids). These trophic guilds incorporate considerable variation: most large grazers have broad diets that often include sessile animals, as well as primary producers (Otaíza & Santelices, 1985; Briscoe & Sebens, 1988; Camus, Daroch & Opazo, 2008; Sanhueza et al ., 2008; Aguilera, 2011); and suspension‐feeders take up dissolved organic matter and food particles from the sediment in addition to particulate food suspended in water (Compton et al ., 2008).…”

Section: Methodsmentioning

confidence: 99%

The evolution of gigantism on temperate seashores

Vermeij

2012

Biol J Linn Soc Lond

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The extent to which animal lineages achieve large body size, a trait with broad advantages in competition and defence, varies in space and time according to the supply of (and demand for) resources, as well as the magnitude and effects of extinction. Using the maximum sizes of shallow-water marine shell-bearing molluscs belonging to nineteen guilds (groups of species with similar habits and food sources) in seven temperate regions from the Early Miocene to the Recent, the present study examined the controls on productivity and predation that enable and compel large size to evolve. The North Pacific (especially its eastern sector) has been most favourable to large-bodied species from the Pliocene onward. Large productive kelps (Laminariales) evolved there in conjunction with herbivorous mammals, setting the stage through positive feedbacks between production and consumption for the evolution of large molluscan herbivores and suspension-feeders. The evolution of bottom-feeding predatory mammals together with other large predators created intense selection for large molluscan sizes. Very large molluscs in the Early Miocene were concentrated in the southern hemisphere, especially among metabolically passive species. Extinctions, which preferentially targeted the largest members of guilds in most regions, were more numerous in the southern hemisphere and the North Atlantic than in the North Pacific. Minimal disruption, together with the early evolution of metabolically-active consumers and the positive feedbacks they engendered, accounts for the evolution of molluscan gigantism in the North Pacific.

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“…This can be related to the different feeding behaviors of the two species, which has been used to explain natural δ 13 C differences between suspension and deposit feeding bivalves (Crompton et al, 2008). M. moesta is a benthic suspension and surface-deposit feeder, utilizing the top surface layer of the sediments upon which algal food (i.e., experimental enriched food source) settles (McCormick-Ray et al, 2011;Sirenko and Gagaev, 2007;own observations).…”

Section: Species-specific Isotopic Tracer Assimilationmentioning

confidence: 99%

Carbon and nitrogen assimilation in the Bering Sea clams Nuculana radiata and Macoma moesta

Weems

Iken

Gradinger

et al. 2012

Journal of Experimental Marine Biology and Ecology

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Carbon isotope signatures reveal that diet is related to the relative sizes of the gills and palps in bivalves

Abstract: Carbon isotope signatures reveal that diet is related to the relative sizes of the gills and palps in bivalves.

Cited by 27 publications

References 68 publications

Nitrogen stable isotopes reveal age-dependent dietary shift in the Japanese scallop Mizuhopecten yessoensis

Nitrogen stable isotopes reveal age-dependent dietary shift in the Japanese scallop Mizuhopecten yessoensis

The evolution of gigantism on temperate seashores

Carbon and nitrogen assimilation in the Bering Sea clams Nuculana radiata and Macoma moesta

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