Anatomical distributions and temporal variations of lipid classes in sea scallops placopecten magellanicus (gmelin) from georges bank (nova scotia)

Napolitano, Guillermo E.; Ackman, R. G.

doi:10.1016/0305-0491(92)90384-4

Cited by 43 publications

(49 citation statements)

References 16 publications

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“…The bivalve digestive gland incorporates a large number of food particles by the process of phagocytosis (Chang et al 1989), and it is suspected that food items including membrane lipids of plankton cells contribute substantially to the fatty acids of this organ. Therefore, the use of total lipids of the digestive gland, rather than TAG, is the most efficient means to trace scallop feeding (Napolitano & Ackman 1993, Silina & Zhukova 2007.…”

Section: Trophic Relationshipsmentioning

confidence: 99%

“…Therefore, we estimated the TAG fatty acid profile of polychaetes, which reflects feeding activity and, hence, may reveal more about food supplied than PL and total lipid profiles. For the scallop, the occurrence of dietary fatty acids is more clearly reflected in the total fatty acid composition of the digestive gland of this mollusk (Napolitano & Ackman 1993). The scallop digestive gland contains large lipid deposits in the form of intracellular drops of oil (Chang et al 1989).…”

Section: Trophic Relationshipsmentioning

confidence: 99%

“…The scallop digestive gland contains large lipid deposits in the form of intracellular drops of oil (Chang et al 1989). Accordingly, the fatty acids of scallop digestive glands are shown to mirror the major changes in the quality of the food supply (Napolitano & Ackman 1993). The bivalve digestive gland incorporates a large number of food particles by the process of phagocytosis (Chang et al 1989), and it is suspected that food items including membrane lipids of plankton cells contribute substantially to the fatty acids of this organ.…”

Section: Trophic Relationshipsmentioning

confidence: 99%

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Topical and trophic relationships in a boring polychaete–scallop association: fatty acid biomarker approach

Silina¹,

Zhukova²

2009

Mar. Ecol. Prog. Ser.

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The association between the Japanese scallop Patinopecten yessoensis and the scallopshell-boring polychaete worm Polydora brevipalpa was investigated in the natural environment. Fatty acid analyses were performed on the scallop, polychaete, and potential food materials available in the environment, with the aim of determining the main food sources of these animals and the trophic relationships between species. The scallop and the polychaete showed a similarity in their fatty acid compositions. High concentrations of 20:5n-3 and 14:0, substantial concentrations of 16:2n-4, 16:3n-4, and 16:4n-1, and ratios of 16:1n-7 to 16:0 close to 1 indicated significant contributions of diatoms in the diets of both mollusk and polychaete. Detectable levels of 18:4n-3 suggest that dinoflagellates also contributed to the diet of the animals. The fatty acid markers showed that the scallop and polychaete feed extensively on a mixed, but probably diatom-dominated phytoplankton diet. Additionally, the elevated level of bacterially derived fatty acids and saturated (mainly 18:0) acids in polychaete lipids point to an additional dietary source, detritus and bacteria. Elevated amounts of 22:6n-3 and 18:1n-9 in the scallop digestive gland are indicative of zooplankton consumption. The similarity of the diets is a major determinant of the feeding competition between these species in the community. The decrease in the scallop internal volume concurrent with an increase in the degree of shell occupation by polychaetes suggests a reduction in water-filtering potential by the scallop. Linear regressions of the degree of polychaete occupation against scallop weight and shell height revealed negative relations in both cases. With high levels of shell occupation by polychaetes, the commensal relationship between scallop and polychaete acquires some elements of parasitism. KEY WORDS: Community · Inter-specific relationships · Trophic biology · Fatty acids · Mollusks · Polychaetes Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 394: [125][126][127][128][129][130][131][132][133][134][135][136] 2009 dominant among such organisms. For instance, in muddy bottom areas of Peter the Great Bay of the Sea of Japan, the shell surface of the benthic mobile Japanese scallop Patinopecten (= Mizuhopecten) yessoensis (Jay) is free of epibionts (Silina 2002), and generally only one species (the boring polychaete Polydora brevipalpa Zachs) occurs in association with the scallop shell (Silina 2003(Silina , 2006.The effect of boring worms on oysters, abalones, scallops, clams and mussels have mainly been studied in mariculture conditions. Some researchers have shown that boring worms affect the health and growth of mollusks (Lleonart et al. 2003), whereas others did not find such an effect (Caceres-Martinez & Tinoco-Orta 2001, Calvo et al. 2001, Handley & Bergquist 1997. We investigated the association of the Japanese scallop Patinopecten yessoensis and the polychaete worm Polydora brevipalpa that inhabit...

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Section: Trophic Relationshipsmentioning

confidence: 99%

Section: Trophic Relationshipsmentioning

confidence: 99%

Section: Trophic Relationshipsmentioning

confidence: 99%

See 1 more Smart Citation

Topical and trophic relationships in a boring polychaete–scallop association: fatty acid biomarker approach

Silina¹,

Zhukova²

2009

Mar. Ecol. Prog. Ser.

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“…Lipid transport and lipoproteins are discussed in chapters 2 and 3, while heat shock protein expression is described in chapters 4, 5, and 6. Moreno et al, 1980;Zandee et al, 1980;Kluytmans et al, 1985) or exogenous (Langdon and Waldock, 1981;Napolitano and Ackman, 1992;Robinson, 1992) sources.…”

Section: Contaminant and Disease Effectsmentioning

confidence: 99%

“…Stored energy reserves may be mobilized during periods of reproductive activity to fuel the development of the gonad and the production of gametes (Giese, 1959;Sastry and Blake, 1971;Vassallo, 1973;Gabbott, 1975;Pollero et al, 1979;Taylor and Venn, 1979;Joseph, 1982;Barber and Blake, 1985;Mathieu and Lubet, 1993;Napolitano and Ackman, 1993).…”

Section: Lipoproteinsmentioning

confidence: 99%

Lipoproteins and heat shock proteins as measures of reproductive physiology in the soft shell clam, Mya arenaria

Clayton¹

1996

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Reproduction is an important physiological process in marine bivalve molluscs. Experiments were designed to examine the role of lipoproteins and heat shock proteins in normal physiological processes of the soft shell clam, Mya arenaria, including reproduction.The distribution of "C triolein, an injected lipid tracer, occurred rapidly and was unaffected by the early stages of the disease hematopoietic neoplasia. These results, in combination with other evidence, provide support for the hypothesis that plasma is the primary conduit for lipid transport in the soft shell clam. A very high density lipoprotein (VHDL) was isolated from clam plasma. The association of only small amounts of the lipid tracer with the VHDL suggest that it may not play a large role in lipid transport. The lack of information on the turnover rate of the lipoprotein, however, makes this result uncertain.Additionally, the expression of the heat shock protein 70 family was measured in the gill and gonad of clams from severely (New Bedford Harbor), moderately (Cotuit Bay), and negligibly (Little Buttermilk Bay) contaminated natural populations. Site differences in hsp 70 expression were observed only in the gill of clams from the New Bedford Harbor population, suggesting that a threshold exists for the induction of the stress response. Effects of the reproductive cycle, however, were observed in both gill and gonad tissues. In New Bedford Harbor, the stress associated with the later stages of the reproductive cycle (ripe, spawning, and spent) appears to interact synergistically with the contaminant effect. The interpretation of a stress response associated with exposure to environmental contaminants, therefore, must include a careful consideration of the effect of natural physiological processes, including reproduction, on the expression of hsp 70.

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Comparative studies on the lipid profiles of female and male gonads of abalone (Haliotis discus hannai)

Wang,

Liu,

Liu

et al. 2023

Euro J Lipid Sci & Tech

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Lipid profiles of the lipids from female gonads (LFG) and male gonads (LMG) of abalones (Haliotis discus hannai) were evaluated based on the analysis of phospholipid (PL) molecular species, PL class composition, fatty acid (FA) composition, and lipid class composition. These results suggested that lipids from abalone gonads were abundant in omega‐3 polyunsaturated FA (n − 3 PUFA, 14.42%–18.27% of total FAs) and PLs including phosphatidylcholine (PC, 21.26–47.85 mg g−1) and phosphatidylethanolamine (PE, 9.29–24.10 mg g−1). Furthermore, more than 60 molecular species of PC and PE were determined. Particularly, the molecular species containing n − 3 PUFA including eicosapentaenoic acid (EPA) constituted majority of PC and PE in LFG and LMG. By contrast, LFG contained more PC and PE species containing EPA. Considering the lipid profiles, abalone gonads are a potential source of PL‐form n − 3 PUFA.

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Anatomical distributions and temporal variations of lipid classes in sea scallops placopecten magellanicus (gmelin) from georges bank (nova scotia)

Cited by 43 publications

References 16 publications

Topical and trophic relationships in a boring polychaete–scallop association: fatty acid biomarker approach

Topical and trophic relationships in a boring polychaete–scallop association: fatty acid biomarker approach

Lipoproteins and heat shock proteins as measures of reproductive physiology in the soft shell clam, Mya arenaria

Comparative studies on the lipid profiles of female and male gonads of abalone (Haliotis discus hannai)

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