Deposition of Dimethyl-β-Propiothetin in Atlantic Cod During Feeding Experiments

Ackman, R. G.; Dale, Janet; Hingley, J.

doi:10.1139/f66-040

Cited by 21 publications

(19 citation statements)

References 2 publications

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“…Although our evidence suggests that Oxyrrhis marina may metabolize DMSP without direct production of DMS, other heterotrophic flagellates and other microherbivores likely have different abilities. DMSP clearly accumulates to some degree in larger predators such as shellfish and fish (Motohiro 1962, Ackman et al 1966, Ackman & Hingley 1968, Iida & Tokunaga 1986) and may bioconcentrate within marine food webs (Sieburth 1960). Measurements of DMSP in the >240 pm fraction in the NE Pacific showed approximately 10% of total DMSP associated with copepods and other metazoan grazers (Wolfe 1992).…”

Section: Discussionmentioning

confidence: 99%

Release and consumption of DMSP from Emiliania huxleyi during grazing by Oxyrrhis manna

Wolfe

Sherr²,

Sherr³

1994

Mar. Ecol. Prog. Ser.

107

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Degradation and release to solution of intracellular dimethylsulfoniopropionate (DMSP) from Emiliania huxleyi 370 was observed during grazing by the heterotrophic dinoflagellate Oxyrrhis marina in 24 h bottle incubations. Between 30 and 70 % of the lost algal DMSP was metabolized by the grazers without production of dimethylsulfide (DMS) when grazer densities were 150 to 450 m l ' The rest was released to solution and about 30% was converted to DMS by bacteria associated with the grazer culture. These experiments demonstrate that grazing by herbivorous protists may be an important sink for DMSP in marine waters, removing a potential source of DMS. Microzooplankton grazing may also indirectly increase the production of DMS by transferring algal DMSP to the dissolved pool, making it available for bacterial n~etabolism.

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Section: Discussionmentioning

confidence: 99%

Release and consumption of DMSP from Emiliania huxleyi during grazing by Oxyrrhis manna

Wolfe

Sherr²,

Sherr³

1994

Mar. Ecol. Prog. Ser.

107

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“…DMSP was found to accumulate in fish preying on certain food species, and in processing of the fish, the decomposition product, DMS, presented a problem in fish flavor. The 'Blackberry' problem off the Labrador coast and a similar disorder, termed 'gunpowder', which occurs off Iceland, are both attributable to the presence of a DMSP-containing pteropod, Limacina helicina, in fish guts (Sipos & Ackman 1964, Ackman et al 1966, 1967. Motohiro (1962) showed that the Pacific chum salmon Oncorhynchus keta contained significant levels of DMSP which were decomposed to DMS during the canning process, giving rise to a 'petroleumlike' odor.…”

Section: Introductionmentioning

confidence: 99%

Herbivory by reef fishes and the production of dimethyl sulfide and acrylic acid

Dacey¹,

King²,

Lobel³

1994

Mar. Ecol. Prog. Ser.

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The content of dimethylsulfoniopropionate (DMSP) in selected marine reef macrophytes was examined and related to levels of DMSP and one of its decomposition products, dimethylsulfide (DMS), in guts of herbivorous fish. Concentrations of short-chain fatty acids and acrylic acid (ACR), another decomposition product of DMSP, were also measured in gut contents. The fatty acid data provide evidence for bacterial fermentation within fish intestines. Unlike previous observations of gut microflora, the concentrations of ACR in these guts did not support a role for ACR as an inhibitor of the gut microflora. DMSP also appears to concentrate in the tissues of certain fish, but not in others. These results illustrate the complex trophic interactions which determine the dynamics of DMSP in the marine food web.

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“…Nonetheless, it accumulates 373 DMS(P) in its muscle tissue to concentrations averaging 35 µmol g −1 when fed a diet rich in the 374 seaweed Ulva in an aquaculture setting. [15] fed DMSP supplements are 4-8 µmol g −1 , [17] far lower than in aquacultured abalones, Haliotis. [15] …”

mentioning

confidence: 86%

“…Distinctively tight retention, as we are arguing is common in Pteropods (planktonic molluscs) are well documented to be principal vectors for 388 commercially detrimental accumulations of DMS(P) in fish such as chum salmon (Oncorhynchus keta) and cod (Gadus morhua). [8,17,18] The pteropods feed directly or indirectly 390 on DMSP-producing phytoplankton, and the fish obtain DMSP when they feed on the pteropods.…”

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confidence: 99%

Exceptional accumulation and retention of dimethylsulfoniopropionate by molluscs

Hill¹,

Dacey²

2016

Environ. Chem.

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Environmental context Animals that eat marine algae strongly affect the rate at which a compound that algae synthesise, dimethylsulfoniopropionate (DMSP), is converted to the important atmospheric climate gas dimethylsulfide (DMS). In studying the processing of DMSP by algae-eating molluscs, we have discovered that some molluscs accumulate and retain DMSP exceptionally well, but this can be very variable. With this knowledge, investigators will be able to design improved experiments to understand the effects of molluscs on DMS production in local ecosystems. Abstract Molluscs often play major roles in processing phytoplankton-synthesised dimethylsulfoniopropionate (DMSP) in local ecosystems. We find that some mollusc species retain tissue DMSP exceptionally tightly and exhibit unusually great and statistically non-normal interindividual variation in DMSP accumulation and retention. Individual mussels (Mytilus, Geukensia) living within a single clump, for example, range 6- to 11-fold in tissue [DMSP] and are often non-normal in statistical distribution. These properties cannot be explained by the elevation of the substrate on which the mussels are living or by mussel position in a clump. When mussels (Mytilus edulis) are deprived of DMSP for up to 5 weeks in depuration experiments, some individuals retain high tissue [DMSP], whereas others exhibit reduced [DMSP]. Such interindividual divergence helps explain non-normal distributions of tissue [DMSP] after depuration. We re-analyse published data from which the half-time for tissue DMSP loss during depuration can be calculated. In the only mollusc studied in this way (Haliotis), the half-time is 13–25 times longer than in similar size fish. Besides posing a challenge for DMSP mass balance studies, retention and interindividual variation may point to as yet unknown properties of molluscs: tight retention suggests functional roles for DMSP, and non-normal statistical distributions suggest discontinuities among individuals in DMSP metabolism.

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Deposition of Dimethyl-β-Propiothetin in Atlantic Cod During Feeding Experiments

Cited by 21 publications

References 2 publications

Release and consumption of DMSP from Emiliania huxleyi during grazing by Oxyrrhis manna

Release and consumption of DMSP from Emiliania huxleyi during grazing by Oxyrrhis manna

Herbivory by reef fishes and the production of dimethyl sulfide and acrylic acid

Exceptional accumulation and retention of dimethylsulfoniopropionate by molluscs

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