Uptake of dissolved free amino acids by spiny lobster Panulirus japonicus phyllosoma larvae

Söylemez, Samet Can; Murakami, Keisuke; Strüssmann, Carlos Augusto; Yokota, Masashi; Watanabe, Seiichi

doi:10.1007/s12562-010-0234-6

Cited by 4 publications

(3 citation statements)

References 32 publications

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“…The extent of this ability across a range of l ‐type amino acids (namely aspartic acid, threonine, glutamic acid, glycine, alanine, valine and methionine) was then evaluated by Söylemez et al . () who reported a net uptake of all amino acids. The rate of uptake was shown to increase with increasing concentration; however, phyllosoma demonstrated considerable variation in uptake rates, with an apparent preference for polar acidic amino acids over neutral amino acids.…”

Section: Nutritional Researchmentioning

confidence: 99%

Palinurid lobster aquaculture: nutritional progress and considerations for successful larval rearing

Francis

Salmon

Kenway

et al. 2013

Reviews in Aquaculture

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The closed-cycle rearing of palinurid lobsters in commercially relevant quantities currently represents one of the most difficult challenges facing modern-day aquaculture. The length and complexity of the larval life cycle exacerbate the problem, comprising the major bottleneck to their successful aquaculture. The general consensus is that developments in the key research area of nutrition will provide the necessary breakthroughs to make the closed-cycle rearing of lobster a reality. Due to the cryptic nature of feeding preferences and complex larval morphology, a commercially formulated feed for their culture does currently not exist. Nevertheless, there has been a wealth of research conducted to elucidate many of the unknowns concerning larval nutritional requirements. This review presents a synthesis of this information, ranging from investigations of larval morphology and feeding behaviour, hatchery nutrition practices, the elucidation of wild prey items and the nutritional content of wild-caught larval species. Based on the information available, this review culminates with a 'best guess' formulation for a larval spiny lobster diet, taking aspects concerning both the physical and chemical attributes of formulation into consideration. It is concluded that larval spiny lobsters are likely comparatively low in relation to other larval species with respect to their quantitative dietary requirements. Ultimately, the overall success of the larval cycle appears to be dictated by the stockpiling of lipids to fuel an energydemanding metamorphosis and a subsequent nonfeeding puerulus phase. These insights provide valuable direction for the formulation of nutritionally complete feeds to permit the closed-loop culture of spiny lobster species.

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Section: Nutritional Researchmentioning

confidence: 99%

Palinurid lobster aquaculture: nutritional progress and considerations for successful larval rearing

Francis

Salmon

Kenway

et al. 2013

Reviews in Aquaculture

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“…Phyllosoma have localized areas of epithelia rich in mitochondria that are conducive to high ionic permeability and transport (Haond, Charmantier, Flik & Wendelaar Bonga ). It would be possible for phyllosoma to passively sequester Zn and Cu ions from the water source through these mitochondria in a similar way to their ability to sequester free amino acids from culture waters (Söylemez, Murakami, Strüssmann, Yokoto & Watanabe ).…”

Section: Discussionmentioning

confidence: 99%

The release and uptake of metals from potential biofilm inhibition products during spiny lobster (Sagmariasus verreauxi,H. Milne Edwards 1851) culture

et al. 2015

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Zinc (Zn) and copper (Cu) are strong inhibitors of bacterial biofilms in aqueous solutions, but are known toxins of crustaceans. A new metal application method; cold-sprayed metal embedment, known to modulate metal release, was tested for its applications in crustacean larval culture systems. Cold-spray technology allows metal particles to bond to plastics, while modulating metal ion release and biocide activity to the substrate boundary. In this study, Eastern spiny lobster (Sagmariasus verreauxi) larvae (phyllosoma) were cultured in the presence of cold-sprayed Zn and Cu metal surfaces. Metal loss was monitored gravimetrically on embedded surfaces, assessment of water ion concentrations and analysis of phyllosoma body content were undertaken. Phyllosoma moulting, deformity and mortality patterns were monitored. Cold-sprayed Zn-and Cu-embedded surfaces were depleted with losses of 0.69% and 31.2% noted respectively. Culture water concentrations of these metals were elevated and accumulation by phyllosoma occurred. Water Zn concentrations of 18.5 lg L À1 were associated with chronic eyestalk moult deformities; the first report of Zn causing a non-lethal moult deformity in crustacean larvae. The Cu surface lost a third of its metal mass with a water concentration of 40 lg L À1 causing acute toxicity and localization of composite granules in the midgut gland. Cu associated mortality was noted by Day 2 of culture with a LD 50 experienced by Day 9. Future work on the use of bioactive metals in aquaculture systems will focus on a range of different metal alloys, and improved modulation of ion release mechanisms through increased particle embedment depth and separation.

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“…Dopamine, biosynthesized from the essential amino 70 acid L-phenylalanine via L-tyrosine and L-β -3, 4-dihydroxyphenylalanine (L-DOPA) amino acid intermediates, can be converted to epinephrine via norepinephrine. While L-phenylalanine and L-tyrosine are usually assimilated through dietary means, some 75 marine invertebrates have demonstrated an ability to take up free dissolved amino acids from seawater as an alternative or supplementary route (Söylemez et al 2010;Leroy et al 2012). In molluscs, endogenous levels of catecholamines and/or expres-80 sion of their receptors vary depending on developmental stage and age (Kreiling et al 2001), season or reproductive condition (López-Sánchez et al 2009) and exposure to environmental stressors, such as air exposure, mechanical agitation, temperature and sa-85 linity (Chen et al 2008;Qu et al 2009).…”

Section: Introductionmentioning

confidence: 99%

Putative involvement of adrenergic receptors in regulation of mussel (Perna canaliculus) larval settlement

Young

Sánchez-Lazo

Robertson

2015

Marine Biology Research

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Settlement responses were investigated for mussel (Perna canaliculus) larvae after exposure to catecholamines and their precursor metabolites. Settlement and mortality assays were conducted in Petri plates with chemical treatments (L-phenylalanine, L-tyrosine, L-DOPA, dopamine hydrochloride and epinephrine at various concentrations) and controls. 15The proteinogenic amino acids L-phenylalanine and L-tyrosine both were effective inducers (~65%) of larval settlement at 10 −5 mol L −1 compared with controls (4%). Exposure of larvae to L-DOPA, dopamine and epinephrine resulted in maximum settlement induction (50, 60 and 51%, respectively) at 10 −5 mol L −1 . Larval mortalities were low (comparable to controls) across all concentrations of L-phenylalanine and L-tyrosine treatments whereas high mortalities (>60%) were observed for L-DOPA, dopamine and epinephrine at concentrations ≥ 10 −4 mol L −1. Our results indicate that P. canaliculus 20 larval settlement is under endogenous regulation by a catecholaminergic mechanism. Furthermore, the inductive effects of all tested metabolites in the epinephrine biosynthesis pathway point to a putative involvement of adrenergic-type receptors in regulation of larval settlement in this mussel species.

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Uptake of dissolved free amino acids by spiny lobster Panulirus japonicus phyllosoma larvae

Cited by 4 publications

References 32 publications

Palinurid lobster aquaculture: nutritional progress and considerations for successful larval rearing

Palinurid lobster aquaculture: nutritional progress and considerations for successful larval rearing

The release and uptake of metals from potential biofilm inhibition products during spiny lobster (Sagmariasus verreauxi,H. Milne Edwards 1851) culture

Putative involvement of adrenergic receptors in regulation of mussel (Perna canaliculus) larval settlement

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