| ecological relationship between aeromonas and vibrio spp. and planktonic copepods in the coastal marine environment in southern italy. | the colonisation of planktonic copepod integument by bacteria belonging to the family of vibrionaceae is a well described phenomenon. in this study, besides reporting on the occurrence of vibrionaceae and other enteropathogens, we further report on the bacterial attachment to the estuarine copepod acartia margalefi in a faecal polluted coastal lagoon near naples, southern italy. in addition, we also performed a laboratory experiment to study the ability of 7 bacterial strains (vibrio cholerae no ... | 1996 | 8800550 |
| viable but nonculturable vibrio cholerae o1 in the aquatic environment of argentina. | in argentina, as in other countries of latin america, cholera has occurred in an epidemic pattern. vibrio cholerae o1 is native to the aquatic environment, and it occurs in both culturable and viable but nonculturable (vnc) forms, the latter during interepidemic periods. this is the first report of the presence of vnc v. cholerae o1 in the estuarine and marine waters of the rio de la plata and the argentine shelf of the atlantic ocean, respectively. employing immunofluorescence and pcr methods, ... | 2004 | 15574951 |
| phylogenetic position of the copepod-infesting parasite syndinium turbo (dinoflagellata, syndinea). | sequences were determined for the nuclear-encoded small subunit (ssu) rrna and 5.8s rrna genes as well as the internal transcribed spacers its1 and its2 of the parasitic dinoflagellate genus syndinium from two different marine copepod hosts. syndinium developed a multicellular plasmodium inside its host and at maturity free-swimming zoospores were released. syndinium plasmodia in the copepod paracalanus parvus produced zoospores of three different morphological types. however, full ssu rdna sequ ... | 2005 | 16310746 |
| [comparison of mesozooplankton communities in north channel and north branch of yangtze river estuary]. | according to the four cruises investigations in the yangtze river estuary from may, august and november 2004 and february 2005, and by using species diversity indices, k-dominance curves, and similarity analysis (anosim), the features of mesozooplantkon communities and their dominant species in the north channel (nc) and north branch (nb) were analyzed, with the effects of ecological factors, especially water salinity and temperature, on the dominant species and communities in these two waters d ... | 2008 | 19102323 |
| man-induced hydrological changes, metazooplankton communities and invasive species in the berre lagoon (mediterranean sea, france). | the berre lagoon has been under strong anthropogenic pressure since the early 1950s. the opening of the hydroelectric edf power plant in 1966 led to large salinity drops. the zooplankton community was mainly composed of two common brackish species: acartia tonsa and brachionus plicatilis. since 2006, european litigation has strongly constrained the input of freshwater, maintaining the salinity above 15. a study was performed between 2008 and 2010 to evaluate how these modifications have impacted ... | 2012 | 22776776 |
| microassays for a set of enzymes in individual small marine copepods. | fluorogenic assays for a set of five hydrolytic enzymes involved in digestion and food utilization (alanine and arginine aminopeptidase, lipase/esterase, chitobiase, and beta-glucosidase) were optimized to measure activities of these enzymes in the same extracts of individual small north sea copepods. the enzyme activities of acartia clausi, centropages typicus, corycaeus anglicus, paracalanus parvus, and temora longicornis showed distinct species specific activity patterns, but also high intra- ... | 2006 | 16978893 |
| mesozooplankton assemblage and first record of paracartia grani sars g.o., 1904 (copepoda: calanoida) in the western harbour of genova (ligurian sea). | harbours are characterized by high pollutant charge and by the occurrence of well adapted and resistant species. this paper reports the results of an annual plankton survey (may 1997-june 1998) carried out in the western harbour of genova (ligurian sea) and in its mouth. plankton samples were collected by horizontal trawls using a wp2 net. copepods were the bulk of plankton in almost all samples. eight copepod species were recognized: paracalanus parvus and acartia clausi were the most abundant. ... | 2015 | 16180200 |
| monitoring of genotoxicity in marine zooplankton induced by toxic metals in ennore estuary, southeast coast of india. | the present study provides preliminary in-situ data on genetic integrity of marine zooplankton. paracalanus parvus, oithona rigida and euterpina acutifrons were collected during four different seasons (summer, pre-monsoon, monsoon and post-monsoon) from 2011 to 2012 in ennore and kovalum estuaries. dna damage levels in different zooplankton were analyzed by comet assay and were correlated with different environmental stressors. spatial and temporal variations in dna damage was observed in all th ... | 2014 | 25287225 |
| spatial distribution of copepods along the salinity gradient of perai river estuary, penang, malaysia. | investigation on copepod communities in perai river estuary was conducted from november 2005 to may 2006. five stations were established for monthly sampling and were located from the river mouth to the upper reaches of the river. copepod samples were collected from vertical tows using a standard zooplankton net. the perai river estuary was slightly stratified and salinity decreases significantly from the mouth of the river towards the upper reaches of the river. a total of 28 species of copepod ... | 2012 | 24218935 |
| bioaccumulation of trace elements in dominant mesozooplankton group inhabiting in the coastal regions of indian sundarban mangrove wetland. | mesozooplankton (body size 20-200 μm) along with the surface water were collected from coastal regions of sundarban, northeastern part of bay of bengal considering three seasons, namely premonsoon, monsoon and postmonsoon. samples were analyzed for community structure and the dominant copepod species were further analyzed for trace metal concentration. in total, 50 copepods were identified (22 families and 43 genera). the dominant mesozooplankton species included 9 copepods and an epipelagic cha ... | 2014 | 25110048 |
| sticholonche zanclea (protozoa, actinopoda) in fecal pellets of copepods and euphausia sp. in brazilian coastal waters. | fecal pellets produced by mesozooplanktonic copepods (centropages velificatus and paracalanus parvus) and macrozooplanktonic euphausiacea (euphausia sp.) were examined using scanning electron microscopy. fragments of the protozoan sticholonche zanclea were found in both copepod and in euphausia sp. fecal pellets, even when the abundance of the protozoan in the water was low. the results suggest that s. zanclea is an important food resource for different trophic levels, including meso- and macroz ... | 2006 | 17119831 |
| checklist of copepods from gulf of nicoya, coronado bay and golfo dulce, pacific coast of costa rica, with comments on their distribution. | a list of 54 copepod species (crustacea) in 23 families is presented for the pacific coast of costa rica. identifications are from zooplankton samples of the victor hensen expedition during december 1993 and february 1994. samples were taken with a bongo net (0.60 m net opening, 2.50 m net length) with 200 microns mesh size. oblique hauls were done from the surface to the ground at a towing speed of aprox. 1 knot. 37 species (68.5%) were found in the gulf of nicoya, 36 in golfo dulce (66.6%) and ... | 1996 | 9393648 |