| fluorescent histochemistry of the teleost gut: evidence for the presence of serotonergic neurones. | the guts of the teleosts myoxocephalus scorpius, pleuronectes platessa and clupea harengus were examined using fluorescent histochemistry and the innervation compared to that in mammals and other lower vertebrates. in myoxocephalus and pleuronectes both greeen and yellow fast fading fluorescent nerves were found in the intestine. to test whether the yellow nerves might be serotonergic, an attempt was made to extract 5-ht from the intestine of these fish in a region where enterochromaffin cells w ... | 1979 | 455398 |
| the importance of sculpin (myoxocephalus scorpius) as intermediate host and transmitter of the sealworm pseudoterranova decipiens. | a total of 186 sculpins (myoxocephalus scorpius) were caught at vega, nordland, norway, and examined for sealworm larvae (pseudoterranova decipiens). over 80% of the fish were infected. very high infections were found with a maximum of nearly 300 larvae in one sculpin. infections of this magnitude have so far not been reported from sculpins or any other fish species of this size. the importance of the sculpin in the life cycle and in the transmission of p. decipiens to seals or other fish specie ... | 1992 | 1399251 |
| [characteristics of the disorder in the composition of the internal medium and kidney function of vertebrate animals after cisplatin administration]. | in rats, 5 days after injection of cisplatin (5 mg/kg of body weight) the urea content of the blood serum significantly increased; in pigeons, elevation of the uric acid was observed. no significant changes were found in the blood serum of the frog rana temporaria even after injection of 40 mg/kg of cisplatin. in the black sculpin myoxocephalus scorpius, injections of 50 mg/kg of cisplatin resulted in hypermagnesemia. swelling of the kidney and changes in its electrolyte content were observed in ... | 1987 | 3501647 |
| accumulation of the lipophilic environmental contaminant lindane in metacercariae of bucephaloides gracilescens (trematoda, bucephalidae) in the central nervous system of bullrout myoxocephalus scorpius. | bucephaloides gracilescens is a common parasite in the intestine of the angler fish lophiuspiscatorius, and the metacercariae have been recorded from a number of gadoid intermediate hosts. in a toxicokinetic study of lindane (gamma-hexachlorocyclohexane) in bullrout myoxocephalus scorpius, metacercariae of b. gracilescens were found in the central nervous system (cns). furthermore, the metacercariae accumulated concentrations of lindane that were higher than in the surrounding cns tissue. this i ... | 2001 | 11843143 |
| effects of redox cycling compounds on dt diaphorase activity in the liver of rainbow trout (oncorhynchus mykiss). | background: dt diaphorase (dtd; nad(p)h:quinone oxidoreductase; ec 1.6.99.2) catalyses the two electron reduction of quinones, thus preventing redox cycling and consequently quinone dependent production of reactive oxygen species. in rat and mouse, a wide range of chemicals including polyaromatic hydrocarbons, azo dyes and quinones induces dtd. bifunctional compounds, such as beta-naphthoflavone (beta-nf) and benzo(a)pyrene (b(a)p), induce dtd together with cyp1a and phase ii enzymes by a mechan ... | 2005 | 15871734 |
| control of branchial artery tone in fish: effects of environmental temperature and phylogeny. | branchial artery vasoreactivity and nerve density were measured in teleosts of different phylogenetic relatedness from cold (-1.86 degrees to +1 degrees c) and temperate ( approximately 13 degrees c) environments. polar notothenia coriiceps and temperate paranotothenia angustata are closely related southern hemisphere nototheniids, and polar boreogadus saida and temperate myoxocephalus scorpius are northern hemisphere species that are phylogenetically distant from each other and the nototheniids ... | 2010 | 19938979 |
| parasites, diet and stable isotopes of shorthorn sculpin (myoxocephalus scorpius) from frobisher bay, canada. | shorthorn sculpin (myoxocephalus scorpius) from frobisher bay, baffin island, is a slow growing long-lived species. a wide range of diet items were present in the stomachs of the shorthorn sculpins sampled but 2-3 diet items (amphipod species) comprised 99.5% of total food consumed. these amphipods were present in the stomachs in similar proportions among all age classes of shorthorn sculpin. several new host records for parasites were reported and mean numbers of parasite species increased with ... | 2009 | 20092061 |
| metals in edible fish from vistula river and dead vistula river channel, baltic sea. | metals including al, ba, ca, cd, co, cr, cu, fe, hg, k, mg, mn, na, ni, pb, sr and zn were determined in muscle tissue of 12 fish species by inductively coupled plasma-atomic emission spectroscopy (icp-aes) and cold vapour-atomic absorption spectroscopy (cv-aas). fish were collected from vistula river at lower course and dead vistula river channel in south of baltic sea in poland. the fish species examined include round goby (neogobius melanostomus), crucian carp (carassius carassius), bull-rout ... | 2012 | 22428891 |
| the mechanical properties of polyneuronally innervated, myotomal muscle fibres isolated from a teleost fish (myoxocephalus scorpius). | single or small bundles of fibres were isolated from the abdominal myotomes of the sculpin myoxocephalus scorpius, a teleost with a polyneuronal pattern of fast muscle innervation. fibres responded to a supra-threshold stimulus with an all-or-none twitch. tetanic fusion frequency at 3 degrees c was 40-60 hz, and the twitch tetanus ratio 0.70. maximum isometric tension was 281 kn m-2. similar isometric contractile properties were obtained from the focally innervated fast muscle fibres of another ... | 1988 | 3194174 |
| histochemical observations on glycoproteins in the urinary apparatus of the bullhead cottus gobio l. and the bull rout myoxocephalus scorpius (l.). | the distribution of neutral and acid (sialylated and sulfated) glycoprotein in the urinary apparatus of a marine and a fresh water cottid teleost (bull rout and bullhead) has been studied. the renal morphology of the bullhead cottus gobio is similar to that of the marine bullrout myoxocephalus scorpius: the glomerular nephron consists of 2 tubular segments (pi and pii), leading to the collecting duct-archinephric duct system (cd/ad). sialoglycoprotein is present in the secretion of the proximal ... | 1982 | 7102034 |
| sealworm (pseudoterranova decipiens) infection in grey seals (halichoerus grypus), cod (gadus morhua) and shorthorn sculpin (myoxocephalus scorpius) in the baltic sea. | the anisakid nematode pseudoterranova decipiens, known as the sealworm or cod worm, can infect the flesh of several fish species. the parasite causes cosmetic problems for the fish industry and can cause abdominal discomfort if consumed by humans. there are only scattered studies on the abundance or distribution of the sealworm in fish and seals in the baltic sea. to remedy this situation, the extent of sealworm infection was investigated in cod (gadus morhua) and shorthorn sculpin (myoxocephalu ... | 2015 | 25367209 |
| volatile siloxanes in the european arctic: assessment of sources and spatial distribution. | the purpose of this study was to investigate presence and potential accumulation of cyclic volatile methyl siloxanes (cvms) in the arctic environment. octamethylcyclotetrasiloxane (d4), decamethylcyclopentasiloxane (d5), and dodecamethylcyclohexasiloxane (d6) were analyzed in sediment, zooplankton, atlantic cod (gadus morhua), shorthorn sculpin (myxocephalus scorpius), and bearded seal (erignathus barbatus) collected from the svalbard archipelago within the european arctic in july 2009. highest ... | 2010 | 20836489 |
| polar cod, boreogadus saida (gadidae), show an intermediate stress response between antarctic and temperate fishes. | to examine whether the attenuated stress response observed in antarctic notothenioid fishes is a specialism for life in sub-zero waters, the polar cod, boreogadus saida, and the temperate shorthorned sculpin, myoxocephalus scorpius, were subjected to various stress treatments. activity stress in both species had no effect on plasma catecholamine and cortisol levels, splenic mass, and on the haematological variables in b. saida. in contrast, heat stress caused a significant rise in circulating no ... | 2006 | 16987677 |
| halogenated organic contaminants in marine fish and mussels from southern greenland--pilot study on relations to trophic levels and local sources. | mussels and marine fish (shorthorn sculpin and greenland cod) were sampled at three locations with varying human activity. fish livers and mussels were analysed for polychlorinated biphenyls (pcbs), polybrominated diphenylethers (pbdes) and chlorinated pesticides including chlordane and toxaphene. levels of chlorinated contaminants in shorthorn sculpins from the background location, [capital sigma]pcb (217-224 ng g(-1) lw), [capital sigma]ddt (180 ng g(-1) lw) and hexachlorobenzene (32-44 ng g(- ... | 2004 | 15690093 |
| levels and spatial and temporal trends of contaminants in greenland biota: an updated review. | knowledge of contaminant levels in greenland biota has increased substantially in recent years, particularly for persistent organic pollutants. this paper reviews and updates knowledge of spatial and temporal trends of cd, hg and organochlorines (pcbs, ddts, hchs, hcb and chlordane-related compounds) in greenland terrestrial, freshwater and marine biota. the most comprehensive studies of spatial trends of cd and hg in the terrestrial ecosystem concern lichens, with relatively complete coverage, ... | 2004 | 15325140 |
| endothelin receptors in teleost fishes: cardiovascular effects and branchial distribution. | by observing gill blood flow using epi-illuminating microscopy, in parallel with cardiovascular recordings and immunohistochemistry, we have tried to identify the receptor mediating endothelin (et) type 1 (et1)-induced pillar cell contraction in the lamellae of the atlantic cod (gadus morhua). intra-arterial injection of the specific et(b) receptor agonist bq-3020 induced dose-dependent increases in ventral aortic blood pressure, gill vascular resistance, and pillar cell area (indicating contrac ... | 2006 | 16223845 |
| factors influencing activities of biotransformation enzymes, concentrations and compositional patterns of organochlorine contaminants in members of a marine food web. | the accumulation of polychlorinated biphenyls (pcbs; 34 congeners), sigmaddt (p,p'-ddt, o,p'-ddt, p,p'-ddd, o,p'-ddd and p,p'-dde), chlordanes (sigmachl; trans-chlordane, cis-chlordane, trans-nonachlor, cis-nonachlor and oxychlordane), hexachlorocyclohexanes (sigmahch; alpha-, beta- and gamma-isomers), hexachlorobenzene (hcb) and mirex was investigated in members of a marine food web from the hvaler and torbjørnskaer archipelago, south-eastern norway. the species studied were bullrout (myoxoceph ... | 2002 | 12297372 |
| population dynamics of sealworm, pseudoterranova decipienssensu lato, in sculpins, myoxocephalus scorpius, from two areas in norway between 1990 and 1996. | the abundance of sealworms (pseudoterranova decipienss.l.) in sculpins (myoxocephalus scorpius) was studied at torbjørnskjaer, southeast norway, and vega, northern norway, in samples from 1990 to 1996. the harbour seal ( phoca vitulina) population at torbjørnskjaer declined by 70% during the phocine distemper virus epizootic in 1988, and has increased during the 1990s. the abundance of sealworms in sculpins was relatively stable from 1992 to 1996 and any effect of the reduction in the number of ... | 2003 | 12632153 |
| influence of trophic position on organochlorine concentrations and compositional patterns in a marine food web. | the accumulation of polychlorinated biphenyls (pcbs), ddts (p,p'-ddt [1,1,1-trichloro-2,2-bis(4-chlorophenyl)ethane], o,p'-ddt [1,1,1-trichloro-2-(2-chlorophenyl)-2-(4-chlorophenyl)ethane], p,p'-ddd [1,1,-dichloro-2,2-bis(4-chlorophenyl)ethane], o.p'-ddd [1,1-dichloro-2-(2-chlorophenyl)-2-(4-chlorophenyl)ethane], and p,p'-dde [1,1-dichloro-2,2-bis(4-chlorophenyl)ethene]), chlordanes (trans-chlordane, cis-chlordane, trans-nonachlor, cis-nonachlor and oxychlordane), hexachlorocyclohexanes (alpha-, ... | 2002 | 12389914 |
| polybrominated diphenyl ethers (pbdes) in marine fish and blue mussels from southern greenland. | levels of polybrominated diphenyl ethers (pbdes) have not previously been reported in greenland. in this study shorthorn sculpins (myoxocephalus scorpius) were sampled at three locations in southern greenland; usuk (no population), igaliko (population 40) and qaqortoq (population 3200). furthermore uvak (gadus ogac), spotted wolffish (anarhichas minor), starry ray (raja radiata), and blue mussels (mytilus edulis) were collected at usuk. pooled samples of fish liver and blue mussel were analysed ... | 2002 | 12047074 |
| isolation and characterization of skin-type, type i antifreeze polypeptides from the longhorn sculpin, myoxocephalus octodecemspinosus. | the antifreeze polypeptides (afps) are found in several marine fish and have been grouped into four distinct biochemical classes (type i-iv). recently, the new subclass of skin-type, type i afps that are produced intracellularly as mature polypeptides have been identified in the winter flounder (pleuronectes americanus) and the shorthorn sculpin (myoxocephalus scorpius). this study demonstrates the presence of skin-type afps in the longhorn sculpin (myoxocephalus octodecemspinosus), which produc ... | 2001 | 11136728 |
| a new species of bothriocephalus rudolphi, 1808 (eucestoda: bothriocephalidea) from the channel bull blenny cottoperca gobio (günther) (perciformes: bovichtidae) on the patagonian shelf off argentina. | bothriocephalus timii n. sp. is the first tapeworm species reported from a bovichtid fish. the new species was commonly found (prevalence 85%) in the intestine of cottoperca gobio (günther) collected on the patagonian shelf off argentina. it is characterised by a strobila with segments and proglottides usually longer than wide, having posterolateral wing-like expansions with a medial notch on both the dorsal and ventral surfaces; a scolex with an apical disk; elongate bothria opening posteriorly ... | 2015 | 25693459 |
| biochemical indicators of pollution exposure in shorthorn sculpin (myoxocephalus scorpius), caught in four harbours on the southwest coast of iceland. | shorthorn sculpins (myoxocephalus scorpius) were caught in four icelandic harbours, differing in size, use and traffic. biochemical responses in liver were measured and chemicals analysed in bile. eyrarbakki harbour, which has not been in use for many years was chosen as a control site. njar partial differentialvík harbour is a small fishing harbour and a marina, sandger partial differentiali harbour is a large fishing harbour, and reykjavík harbour is a large fishing harbour and an internationa ... | 2000 | 10794829 |
| organochlorines in greenland marine fish, mussels and sediments. | shorthorn sculpin (myoxocephalus scorpius), polar cod (boreogadus saida), blue mussels (mytilus edulis) and sediments were sampled in greenland 1994-1995 at three locations at the west coast and one at the east coast. fish liver, mussel soft tissue and sediments were analysed for pcbs (10 congeners), ddts (pp,'), hchs (alpha, beta, gamma), hcb and trans-nonachlor. the overall geometric mean concentrations found for pcbs were 17 micrograms kg-1 wet wt. in shorthorn sculpin liver, 33 micrograms kg ... | 2000 | 10682358 |
| studies of evolutionary temperature adaptation: muscle function and locomotor performance in antarctic fish. | 1. studies of evolutionary temperature adaptation of muscle and locomotor performance in fish are reviewed with a focus on the antarctic fauna living at subzero temperatures. 2. only limited data are available to compare the sustained and burst swimming kinematics and performance of antarctic, temperate and tropical species. available data indicate that low temperatures limit maximum swimming performance and this is especially evident in fish larvae. 3. in a recent study, muscle performance in t ... | 1998 | 9750970 |
| skin-type antifreeze protein from the shorthorn sculpin, myoxocephalus scorpius. expression and characterization of a mr 9, 700 recombinant protein. | a cdna clone encoding a presumptive antifreeze protein was isolated from a skin library from shorthorn sculpin, myoxocephalus scorpius. the clone encodes a 92-residue mature polypeptide (sssafp-2) without any signal and prosequence, which suggests an intracellular localization. it is the largest alanine-rich, alpha-helical type i antifreeze protein known. a recombinant fusion protein containing an n-terminal-linked his-tag was produced and purified from escherichia coli. this protein is alpha-he ... | 1998 | 9722537 |
| experimental infection/transmission of sculpins (myoxocephalus scorpius) and cod (gadus morhua) by sealworm (pseudoterranova decipiens) larvae. | five serial transmission experiments with sealworm larvae were carried out. pseudoterranova decipiens third-stage larvae (l3) were transferred via a stomach tube from sculpin to cod, from cod to sculpin, from sculpin to sculpin, and from cod to cod. after a minimum of 37 days the recipient fish were killed and the numbers of surviving p. decipiens larvae were recorded. p. decipiens transferred to sculpins showed the greatest rate of survival. | 1997 | 9134562 |
| lithium transport in the chicken and marine teleost kidney. | the clearance ratio-c(li)/c(ln) (excretion fraction of lithium-efli) in the cod (gadus morrhua l.) kidney amounts to 15.1 +/- 4.7, in the black sculpin (myoxocephalus scorpius l.) kidney, to 6.88 +/- 1.22, which indicates secretion of lithium by the marine teleost kidney. a direct correlation has been found between efli and efmg. injection of furosemide (15 mg/kg b.w.) increase while injection of the 20% para-amino-hippurate solution (1.6 ml/kg b.w.) does not change efli in the cod kidney. infus ... | 1996 | 8858841 |
| [structural organization of nephrons in the kideny and proximal reabsorption in representatives of different vertebrate classes (according to microdissection and micropuncture studies)]. | by microdissection method, single nephrons have been isolated from the river lamprey lampetra fluviatilis, teleost fish myoxocephalus scorpius (white sea), frog rana temporaria, lizard agama caucasica, hen gallus domesticus and albino rat rattus norvegicus (wistar strain). tubular reabsorptive capacity was measured in kidneys of lampreys and rats by the split oil droplet method. in the animals studied, each of the nephrons consists of the glomerulus, proximal, thin and distal segments. relative ... | 1976 | 1085080 |
| glial cells revealed by gfap immunoreactivity in fish gut. | glial fibrillary acidic protein (gfap) is a commonly used marker to identify enteric glia in the mammalian gut. little is however known about enteric glia in other vertebrates. the aim of the present study was to examine the distribution of gfap immunoreactivity in adult and developing fish. in adult shorthorn sculpin (myoxocephalus scorpius) and zebrafish (danio rerio), gfap immunoreactivity was seen in the myenteric plexus in all regions of the gut. co-staining for the neuronal markers hu c/d ... | 2010 | 20512593 |
| calbindin immunoreactivity in the enteric nervous system of larval and adult zebrafish (danio rerio). | calbindin is a calcium-binding protein, commonly found in certain subpopulations of the enteric nervous system in mammals. recently, calbindin-immunoreactive enteric neurons have also been demonstrated in shorthorn sculpin (myoxocephalus scorpius). in the present study, calbindin immunoreactivity has been investigated in the gut of adult and larval zebrafish (danio rerio) and differences and similarities between the two species are discussed. calbindin immunoreactivity is present in 40%-50% of a ... | 2011 | 21327820 |
| tyrosine hydroxylase immunoreactivity is common in the enteric nervous system in teleosts. | tyrosine hydroxylase (th) is the rate-limiting enzyme in the synthesis of catecholamines and th immunoreactivity is indicative of cells synthesising either adrenaline/noradrenaline or dopamine. in this study, the distribution of th immunoreactivity was examined in two distantly related teleost species, zebrafish (danio rerio) and shorthorn sculpin (myoxocephalus scorpius). in both species, th-immunoreactive nerve cell bodies and varicose nerve fibres were common in the myenteric plexus of the in ... | 2016 | 26572541 |
| myxozoa in high arctic: survey on the central part of svalbard archipelago. | myxosporeans (myxozoa), microscopic metazoan parasitic organisms, are poorly studied in the arctic region. our survey of benthic and pelagic fish (n = 234) collected in isfjorden (svalbard, norway) together with detailed morphological and molecular examination revealed the presence of nine myxosporean species. we compared observed myxosporean diversity with diversity documented in regions close to the arctic and revealed that water depth rather than geographic distribution is an important factor ... | 2014 | 24918076 |
| respiratory characteristics of muscle fibres in a fish (chaenocephalus aceratus) that lacks haem pigments. | 1. oxygen consumption, mitochondrial content and enzyme activities were determined in identified muscle fibre types of the 'haemoglobin-less' icefish chaenocephalus aceratus lönnberg. 2. small bundles (2-12) of fast and slow fibres were isolated from the myotomal and superficial pectoral fin abductor muscles, respectively. at 0 degrees c the time to 50% peak force and the half-relaxation time of isometric twitches were, respectively, 18 +/- 1 and 38 +/- 4 ms for fast and 43 +/- 3 and 119 +/- 21 ... | 1987 | 3430116 |
| pcbs in sediments and the coastal food web near a local contaminant source in saglek bay, labrador. | polychlorinated biphenyls (pcbs) were measured in marine sediments and the coastal food web in saglek bay, labrador, to investigate the influence of a local pcb source. saglek bay has been the site of a military radar station since the late 1950s and there was pcb-contaminated soil at a beach prior to cleanup in 1997-1999. pcb concentrations in marine sediments during 1997-1999 ranged from 0.24 to 62000 ng/g (dry weight) and decreased exponentially with distance from the contaminated beach. give ... | 2005 | 16085280 |
| reduction of pcb contamination in an arctic coastal environment: a first step in assessing ecosystem recovery after the removal of a point source. | studies have documented the presence of organic contaminants in arctic marine environments due to local point sources, but little long-term data is known of the recovery process once those contaminants are removed. in this study, natural recovery of a local marine food web from a historic terrestrial source of polychlorinated biphenyls (pcbs) at saglek bay is examined. pcbs were measured in marine sediments, shorthorn sculpin (myoxocephalus scorpius), and black guillemots (cepphus grylle) to ass ... | 2009 | 19921872 |
| effects-based marine ecological risk assessment at a polychlorinated biphenyl-contaminated site in saglek, labrador, canada. | although the presence and distribution of polychlorinated biphenyls (pcbs) in arctic marine environments has been well documented, the implications for the health of biota are poorly understood. in the present study, multiple lines of evidence, including site-specific effects data, were used to assess pcb-related risks to marine biota at a contaminated military site in saglek bay, labrador, canada, from 1997 to 1999. risks were evaluated for three components of the ecosystem: benthic invertebrat ... | 2013 | 23147987 |
| toxaphene in the aquatic environment of greenland. | the octa- and nonachlorinated bornanes (toxaphene) chbs 26, 40, 41, 44, 50 and 62 were analysed in arctic char (salvelinus alpinus), shorthorn sculpin (myoxocephalus scorpius), ringed seal (pusa hispida) and black guillemot eggs (cepphus grylle) from greenland. despite their high trophic level, ringed seals had the lowest concentrations of these species, with a σ6toxaphene median concentration of 13-20 ng/g lipid weight (lw), suggesting metabolisation. the congener composition also suggests tran ... | 2015 | 25728301 |
| dispersion and bioaccumulation of elements from an open-pit olivine mine in southwest greenland assessed using lichens, seaweeds, mussels and fish. | this study investigated dispersion and bioaccumulation of mining-related elements from an open-pit olivine mine at seqi in southwest greenland (64° n) using lichens (flavocetraria nivalis), seaweeds (fucus vesiculosus), mussels (mytilus edulis) and fish (myoxocephalus scorpius). the mine operated between 2005 and 2009, and samples were taken every year within a monitoring area 0-17 km from the mine during the period 2004-2011. a total of 46 elements were analysed in the samples. after mining beg ... | 2013 | 23315154 |
| extracellular glucose supports lactate production but not aerobic metabolism in cardiomyocytes from both normoglycemic atlantic cod and low glycemic short-horned sculpin. | fish exhibit a wide range of species-specific blood glucose levels. how this relates to glucose utilization is yet to be fully realized. here, we assessed glucose transport and metabolism in myocytes isolated from atlantic cod (gadus morhua) and short-horned sculpin (myoxocephalus scorpius), species with blood glucose levels of 3.7 and 0.57 mmol l(-1), respectively. glucose metabolism was assessed by the production of (3)h2o from [2-(3)h]glucose. glucose metabolism was 3.5- to 6-fold higher by m ... | 2016 | 26944490 |
| extracellular glucose can fuel metabolism in red blood cells from high glycemic atlantic cod (gadus morhua) but not low glycemic short-horned sculpin (myoxocephalus scorpius). | energy metabolism was assessed in red blood cells (rbcs) from atlantic cod and short-horned sculpin, two species that have markedly different levels of blood glucose. the objective was to determine whether the level of extracellular glucose has an impact on rates of glucose metabolism. the blood glucose level was 2.5 mmol l(-1) in atlantic cod and 0.2 mmol l(-1) in short-horned sculpin, respectively. oxygen consumption, lactate production and glucose utilization were measured in whole blood and ... | 2014 | 25214484 |
| glucose uptake and metabolism by red blood cells from fish with different extracellular glucose levels. | the aim of the present study was to assess whether mechanisms of glucose trafficking by red blood cells (rbcs) relate to species-specific extracellular glucose levels. atlantic cod (gadus morhua), atlantic salmon (salmo salar), cunner (tautogolabrus adspersus) and short-horned sculpin (myoxocephalus scorpius) had plasma glucose levels of 4, 4.1, 1.95 and 0.73 mmol l(-1), respectively. glucose uptake by isolated rbcs was measured by the initial incorporation of [6-(14)c]-glucose and steady-state ... | 2013 | 23038726 |
| disposition and depuration of lindane (gamma-hch) and polychlorinated biphenyl-110 (2,3,3'4'6-pentachlorobiphenyl) in cod (gadus morhua) and bullrout (myoxocephalus scorpius) after single oral exposures. | the disposition and depuration of lindane (gamma-hexachlorocyclohexane [hch]) and polychlorinated biphenyl (pcb)-110 (2,3,3',4',6-pentachlorobiphenyl), orally administered to cod (gadus morhua) and bullrout (myoxocephalus scorpius), were investigated using whole-body autoradiography, liquid scintillation counting, and gas chromatography with electron-capture detection. both gamma-hch and pcb-110 were distributed mainly to lipid-rich organs after absorption from the gastrointestinal tract of cod ... | 2001 | 11596773 |
| actions of epinephrine on the contractility of fast and slow skeletal muscle fibres in teleosts. | fast and slow muscle fibers were isolated from the myotomes of atlantic cod (gadus morhua l.) and sculpin (myoxocephalus scorpius l.). epinephrine was found to have no effect on twitch or sub-tetanic contractions in fast muscle fibres. isoprenaline (10(-6)m) had no effect on the contractility of slow muscle fibres. in contrast, epinephrine elicited a dose-dependent decrease in the half-time for twitch relaxation (t1/2r), and in most cases a decrease in twitch amplitude. the maximum decrease in t ... | 1991 | 24214613 |
| influence of ph and temperature on force development and shortening velocity in skinned muscle fibres from fish. | three species of fish were studied: atlantic cod (gadus morhua), sculpin (myoxocephalus scorpius) (from the north sea, temperature 2 to 12°c) andnotothenia neglecta (from antarctica, temperature -2 to +2°c). single fast muscle fibres were isolated from anterior myotomes and skinned with detergent in order to directly determine the effects of ph and temperature on force production and shortening velocity.in all species maximum force production (po) was independent of ph over the range 7.3-8.0. de ... | 1988 | 24226787 |
| high concentrations of methemoglobin in five species of temperate marine teleosts. | blood samples from five species of marine teleosts were assayed for methemoglobin (methb) levels during winter and summer acclimatization. there was at least 7% total hemoglobin in the met-form in all species, and as high as 27% in one species, the atlantic cod (gadus morhua). there was significant seasonal variation in methb levels for three of the five species, the highest values occurring during the winter months; cunners (tautogolabrus adspersus) 15.6% in winter and 10.1% in the summer, shor ... | 1986 | 3746226 |