| temperature correlates with annual changes in hematodinium perezi prevalence in blue crab callinectes sapidus in florida, usa. | blue crabs callinectes sapidus were monitored biannually throughout florida, usa, for 2 yr using a highly sensitive, quantitative polymerase chain reaction (qpcr) to determine the spatial and temporal changes in prevalence and intensity of hematodinium perezi infections during drought years. despite persistent drought conditions, h. perezi infections were not universally found. overall prevalence was 25.3% (95% ci: 22.8-28.1%) in 1066 crabs sampled from 6 locations (jacksonville, ormond beach, e ... | 2015 | 25850401 |
| conservation in the first internal transcribed spacer (its1) region of hematodinium perezi (genotype iii) from callinectes sapidus . | hematodinium spp. infections have been reported from blue crabs callinectes sapidus in high-salinity waters of the usa from new jersey to texas. recently, h. perezi (genotype iii) has been proposed as the parasite species and genotype infecting blue crabs from virginia; however, it is unknown whether this same genotype is present in blue crabs from other locations. to address this question, we collected 317 blue crabs from massachusetts, virginia, georgia, florida, louisiana, and texas to test f ... | 2013 | 23482386 |
| polychlorinated naphthalenes in soil, sediment, and biota collected near a former chloralkali plant in coastal georgia, usa. | concentrations of total polychlorinated naphthalenes (pcns) as high as 23 micrograms/g, dry wt, were found in sediments contaminated by the disposal of wastes from chlor-alkali processes. concentrations of total pcns in blue crab, fish and birds were 3- to 5-orders of magnitude less than that in sediments. the profile of pcn congeners in biota was predominated by tetra- or penta-chloronaphthalenes, while hepta- and octa-chloronaphthalenes were dominant in sediments. the 2,3,7,8-tetrachlorodibenz ... | 2000 | 10943435 |