| myxozoa of deep-sea fishes in the northwestern atlantic. | the gall bladder of 5 species of deep-water fishes (coryphaenoides armatus, coryphaenoides rupestris, macrourus berglax, antimora rostrata, and synaphobranchus kaupi) from the new york bight and carson canyon areas in the northwest atlantic were examined for myxozoan parasites. myxidium coryphaenoidium was found in 4 fish species, whereas auerbachia pulchra and ceratomyxa sp. were each observed in 1 fish species. prevalence of myxozoan infections was greater in fishes taken off the new york bigh ... | 1990 | 2319435 |
| effects of fish meal as source of protein on intestinal maltase activity and intestinal and renal leucine aminopeptidase activity of growing rats. | the effect of high-protein fish meal on maltase and leucine aminopeptidase (lapase) activities of the intestinal mucosa as well as the renal lapase activity was studied. four groups of female wistar rats, weighing between 40-60 g, were fed diets with a 4 or 12% protein content of dry matter for 25 days. the protein source was casein for the control groups and fish meal derived from coryphaenoides rupestris for the test groups. the results show a decrease (p less than 0.005) in intestinal maltase ... | 1986 | 3538998 |
| influence of certain fish meals on (na+ + k+)-atpase and ca2+-atpase activity in rat small intestine. | the effect of high-protein content fish meal on (na+ + k+)-atpase and ca2+-atpase activity in rat small intestine was studied. 5 groups of wistar rats, weighing between 40-60 g, were fed diets with 12% protein content of dry matter for 10 days. the protein source was casein for the control group and fish meal derived from coryphaenoides rupestris, chimaera monstruosa and merluccius merluccius for the test group. the results show a decrease in (na+ + k+)-atpase and a rise in ca2+-atpase activity ... | 1983 | 6312513 |
| [effect of various fish meals on disaccharidases and alkaline phosphatase of the small intestine in rats]. | female rats of the wistar strain, weighing 40-60 g were used to study the effect of fish meals (coryphaenoides rupestris, chimaera monstruosa and merluccius merluccius) on the disaccharidases and alkaline phosphatase in the small intestine in relation to the control group which consumed casein. fish meal diets diminished lactase and alkaline phosphatase activity, the latter being most remarkable in animals fed ch. monstruosa meal, while no statistical variations in maltase and sucrase activity w ... | 1982 | 6818626 |
| [systematic position of hemiurus macrouri gayevskaya, 1975 (trematoda: hemiuridae)]. | on the basis of the structure of the terminal parts of the genital system hemiurus macrouri gayevskaya, 1975 is transferred to the genus glomericirrus. g. ulmeri campbell and munroe, 1977 is considered as a synonym of g. macrouri (gayevskaya, 1975). it is noted that g. macrouri occurs but rarely (1.1%) in coryphaenoides rupestris from the northern part of the middle atlantic ridge. | 1980 | 440783 |
| high hydrostatic pressure influences the in vitro response to xenobiotics in dicentrarchus labrax liver. | hydrostatic pressure (hp) increases by about 1 atmosphere (0.1mpa) for each ten-meter depth increase in the water column. this thermodynamical parameter could well influence the response to and effects of xenobiotics in the deep-sea biota, but this possibility remains largely overlooked. to grasp the extent of hp adaptation in deep-sea fish, comparative studies with living cells of surface species exposed to chemicals at high hp are required. we initially conducted experiments with precision-cut ... | 2016 | 26836508 |
| north atlantic demersal deep-water fish distribution and biology: present knowledge and challenges for the future. | this paper summarizes knowledge and knowledge gaps on benthic and benthopelagic deep-water fishes of the north atlantic ocean, i.e. species inhabiting deep continental shelf areas, continental and island slopes, seamounts and the mid-atlantic ridge. while several studies demonstrate that distribution patterns are species specific, several also show that assemblages of species can be defined and such assemblages are associated with circulatory features and water mass distributions. in many subare ... | 2013 | 24298948 |
| precision-cut liver slices to investigate responsiveness of deep-sea fish to contaminants at high pressure. | while deep-sea fish accumulate high levels of persistent organic pollutants (pops), the toxicity associated with this contamination remains unknown. indeed, the recurrent collection of moribund individuals precludes experimental studies to investigate pop effects in this fauna. we show that precision-cut liver slices (pcls), an in vitro tool commonly used in human and rodent toxicology, can overcome such limitation. this technology was applied to individuals of the deep-sea grenadier coryphaenoi ... | 2012 | 22900608 |
| feeding ecology of coryphaenoides rupestris from the mid-atlantic ridge. | the macrourid fish roundnose grenadier, coryphaenoides rupestris, is one of the most common benthopelagic fishes on the northern mid-atlantic ridge. the ecology of the species is comparatively well studied in continental slope waters of the north atlantic, but not on the mid-atlantic ridge, which is a central mid-ocean area of its distribution. in total, 166 specimens from the rv g.o. sars cruise in july 2004 were examined. the diet mainly comprised cephalopods, pelagic shrimps and fish. pelagic ... | 2010 | 20454674 |
| local selection and population structure in a deep-sea fish, the roundnose grenadier (coryphaenoides rupestris). | local populations within a species can become isolated by stochastic or adaptive processes, though it is most commonly the former that we quantify. using presumably neutral markers we can assess the time-dependent process of genetic drift, and thereby quantify patterns of differentiation in support of the effective management of diversity. however, adaptive differences can be overlooked in these studies, and these are the very characteristics that we hope to conserve by managing neutral diversit ... | 2010 | 20002604 |
| isolation and characterization of microsatellite loci in the deep-sea marine fish, the roundnose grenadier (coryphaenoides rupestris). | we developed polymerase chain reaction primers for eight dinucleotide microsatellite loci in the marine deep sea fish, roundnose grenadier (coryphaenoides rupestris). all markers were obtained from a partial genomic dna library, and characterized in 90 unrelated individuals from one putative population sampled on the mid-atlantic ridge. the number of alleles ranged from two to 61 with an average of 21 per locus. the observed heterozygosity levels ranged from 0.301 to 0.987 with an average of 0.6 ... | 2008 | 21585951 |
| horizontal and vertical distribution of organic contaminants in deep-sea fish species. | polychlorobiphenyls (pcbs) and pesticides are persistent, semivolatile contaminants whose global circulation is now well established. one of their ultimate sink is the bio- and geo-phases in the deep-sea. we have investigated the distribution of selected pcbs and pesticides with depth and longitude in various deep-sea fish, namely black scabbardfish (aphanopus carbo), orange roughy (hoplostethus atlanticus), roundnose grenadier (coryphaenoides rupestris) and bathysaurus ferox from madeira, sesim ... | 2003 | 12685756 |