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Showing 1 to 17 of 17 for “"Hepatopancreas"”.
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Role and distribution of astaxanthin in spiny lobster, Jasus lalandii
… the exoskeleton, haemolymph, muscles, gonads and hepatopancreas as well as in egg parcels from berried females during the moult as well as the reproductive cycles. Astaxanthin was the dominant carotenoid in all tissues, but small amounts of other carotenoids were detected. Exoskeleton, ovaries and …
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Correlating Behavior and Physiology of Sand Fiddler Crabs, UCA Pugilator
… through determination of the condition of the hepatopancreas, an internal organ in crustaceans that houses nutrients used in growth and reproduction.</p> <p>In the first study, energy stores and their relationship with personality in females was examined. Personality is defined as stable …
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ΚΑΔΜΙΟ ΚΑΙ ΥΔΡΑΡΓΥΡΟΣ ΣΤΟ ΗΠΑΤΟΠΑΓΚΡΕΑΣ ΤΗΣ ΓΑΡΙΔΑΣ CALLIANASSA! TYRRHENA. ΒΙΟΣΥΣΣΩΡΕΥΣΗ ΚΑΙ ΕΠΙΔΡΑΣΕΙΣ ΣΕ ΔΙΑΛΥΤΕΣ ΠΡΩΤΕΙΝΕΣ, ΠΕΠΤΙΔΙΑ ΚΑΙ ΕΝΖΥΜΑ
… CHANGES TO SOLUBLE PROTEIN COMPONENTS IN THE HEPATOPANCREAS OF THE SHRIMP OF C. TYRRENA. SOME OF THESE CHANGES APPEAR TO BE METAL-SPECIFIC WHILE OTHERS COMMON TO BOTH METALS. THE CHANGES WERE SIGNIFICANT FOR BOTH METALS ALTHOUGHMERCURY CONCENTRATIONS IN THE HEPATOPANCREAS WAS 6 TIMES LOWER …
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Ecotoxicology of marine biotoxins in bivalve shellfish
… Histological examination of the gill, mantle and hepatopancreas tissues revealed varying intensity of damage depending both on the tissue type and the species involved. At the cellular level, flow cytometric analysis of the differential cell population distribution was assessed. No change in cell …
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Changing Fecundity and Reproductive Output in Females of a Chesapeake Bay Population of Blue Crab, <i>Callinectes sapidus</i>
… and protein concentrations measured from the hepatopancreas, ovaries and eggs of mature female blue crabs demonstrated that first brood production is derived from stored resources in the hepatopancreas. Later brood production is likely allocated for directly from ingested food. Egg lipid and …
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The role of enteric bacteria in the Abalone, Haliotis Midae
… by H. midae were examined using extracts of the hepatopancreas as it was found to be bacteria free. It was found that abalone synthesize a CMCase, laminarinase, alginase, carrageenanase and agarase. However, the synthesis of these enzymes was related to the diet of the abalone. Abalone fed …
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Nutrient Controls Over Cyanobacterial Synthesis of the Neurotoxin β-N-Methylamino-L-Alanine (BMAA) and Its Potential Accumulation in the Blue Crab (<i>Callinectes Sapidus</i>)
… to examine BMAA bioaccumulation in the stomach, hepatopancreas, and muscle tissues of these important benthic consumers. Concentrations of BMAA were determined via tandem high-performance liquid chromatography- mass spectrometry (HPLC-MS), a highly sensitive method that distinguishes between BMAA …
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Relationships between invertebrate detritivores and gut bacteria in marine systems
… smaller particles which are channeled into the hepatopancreas. U. africana has a relatively large throughput gut (fore, mid, hind) allowing large meals to be taken. This may be related to its reliance on vascular plant detritus for both carbon and nitrogen requirements, as shown by stable …
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Assessment of heavy metal concentrations in water and sediment of dams in Central Namibia and bioaccumulation of copper in locally occuring crabs and fish
… tissue in the fish and gills, muscle tissue and hepatopancreas in the crabs were determined by ICP-OES. Concentrations of up to 9.6 mg/L of Cu were found in liver tissue of the fish at 80 mg/L exposure. The gills in the crabs had the highest concentration of Cu of 2.6 mg/L. Muscle tissue in both …
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Análise morfométrica do camarão de água doce Macrobrachium rosenbergii e do camarão marinho Litopenaeus vannamei
… Total weight, total length, abdomen weight and hepatopancreas weight. The results showed that, the average percentage of abdomen shows a clear tendency of decrease with its growth. The highest percentage of abdomen was 44.52% in class 1. We also found that the highest HI was found in shrimps …
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UNCERTAINTY CONTRIBUTIONS TO SPECIES SPECIFIC ISOTOPE DILUTION ANALYSIS
… been determined in E)ORM-2 and BCR464 lobster hepatopancreas CRM by two different procedures, single IDMS and approximate matching double IDMS. Mercury cold vapour generation of the HPLC column eluent allowed isotope amount ratios measurements by MC-SF-ICP-MS. For each CRM the mass fraction of …
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Aromatic alcohol oxidase, aldehyde oxidase and mannitol oxidase in terrestrial gastropods
… has been demonstrated in the digestive gland (hepatopancreas) of four families of gastropod (Arionidae, Limacidae, Helicidae and Achatinidae). Aromatic alcohol oxidase activity has only previously been reported in basidiomycete fungi where the activity is soluble, extracellular and probably …
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Changes in midgut gland morphology and digestive enzyme activities associated with development in early stages of the American lobster Homarus americanus
… specifically in relation to the midgut gland (hepatopancreas). in early life history stages of the American lobster Homarus americanus is examined in the present study by means of two separate but complementary approaches. A histological study on the light microscope level details the …
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Bioaccumulo di cadmio e piombo e biomarkers di esposizione e di effetto in alcune specie di isopodi oniscidei (Crustacea)
Scopo della presente tesi di Dottorato è stato quello di valutare, utilizzando un protocollo sperimentale basato sulla somministrazione di cibo contaminato con diverse concentrazioni di due metalli pesanti, cadmio e piombo, la capacità di bioaccumulo e le conseguenti risposte biologiche fornite …
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Uptake of manganese into the exoskeleton of the swimming crab Liocarcinus depurator (L.) in relation to biomonitoring and biosorption
… the order of the exoskeleton (carapace, gills) > hepatopancreas > crusher claw muscle and gonads. The trend observed in L. depurator was comparable to the shore crab, Carcinus maenas which is an established biomonitor for metals collected within the vicinity of both study areas. A series of …
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Tale of Two Hosts: Vibrio parahaemolyticus Toxicity Against Human and Shrimp
Bile is an important component of the human gastrointestinal tract with an essential role in food absorption and antimicrobial activities. Enteric bacterial pathogens have developed strategies to sense bile as an environmental cue to regulate virulence genes during infection. We discovered that …
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Tale of Two Hosts: Vibrio parahaemolyticus Toxicity Against Human and Shrimp
Bile is an important component of the human gastrointestinal tract with an essential role in food absorption and antimicrobial activities. Enteric bacterial pathogens have developed strategies to sense bile as an environmental cue to regulate virulence genes during infection. We discovered that …