| thynnascaris reliquens sp. n. and t. habena (linton, 1900) (nematoda: ascaridoidea) from fishes in the northern gulf of mexico and eastern u.s. seaboard. | thynnascaris reliquens sp. n. is described from the type host, the sheepshead, archosargus probatocephalus (walbaum), and other fishes of the northern gulf of mexico and southern florida, including the gulf toadfish, opsanus beta (goode and bean); the spiny boxfish, chilomycterus schoepfi (walbaum); the slippery dick, halichoeres bivittatus (bloch); and the atlantic croaker, micropogon undulatus (linnaeus). its salient characters are: length up to approximately to 12.5 cm; lips broad, with pedun ... | 1975 | 1127562 |
| phylogeny of immunoglobulin in structure and function-x. humoral immunoglobulins of the sheepshead, archosargus probatocephalus. | | 1981 | 6165628 |
| polyhalogenated biphenyls and phenobarbital: evaluation as inducers of drug metabolizing enzymes in the sheepshead, archosargus probatocephalus. | several doses of aroclor 1254 (polychlorinated biphenyl (pcb) mixture), firemaster ff1 (polybrominated biphenyl (pbb) mixture), 2,2',4,4',5,5'-hexabromobiphenyl (hbb), 3,3',4,4',5,5'-hexachlorobiphenyl (hcb) and phenobarbital (pb) were administered to the marine fish sheepshead (archosargus probatocephalus). the pcb and pbb mixtures caused induction of hepatic microsomal benzo[a]pyrene hydroxylase (ahh), 7-ethoxycoumarin o-deethylase (7-ec) and 7-ethoxyresorufin o-deethylase (erf) activities, bu ... | 1981 | 6268313 |
| phylogeny of immunoglobulin structure and function-xii. secretory immunoglobulins in the bile of the marine teleost archosargus probatocephalus. | | 1981 | 6795455 |
| phylogeny of immunoglobulin structure and function. xi. secretory immunoglobulins in the cutaneous mucus of the sheepshead, archosargus probatocephalus. | | 1981 | 7319107 |
| aphanomyces invadans and ulcerative mycosis in estuarine and freshwater fish in florida. | in the spring of 1998, the florida fish and wildlife research institute received numerous reports of lesioned or ulcerated fish primarily from the st. lucie estuary on the southeast coast of florida, an area known since the late 1970s for lesions of the ulcerative mycosis (um) type. from these and archived reports, as well as others received from different areas of florida, we documented that diseased specimens had randomly distributed skin ulcers (usually reddened or hemorrhagic) with raised ir ... | 2007 | 18236628 |
| cytogenetic studies in brazilian marine sciaenidae and sparidae fishes (perciformes). | fishes from the families sciaenidae and sparidae, the former comprising coastal species associated with shallow waters on the continental shelf and the latter composed of typically marine species, are of significant economic value. karyotypic data are available for about 20% of the total number of species in these groups. in the present study, cytogenetic analyses were carried out in three sciaenidae species, menticirrhus americanus, ophioscion punctatissimus and pareques acuminatus, as well as ... | 2008 | 18551402 |
| cardicola langeli sp. n. (digenea: aporocotylidae) from heart of sheepshead, archosargus probatocephalus (actinopterygii: sparidae) in the gulf of mexico, with an updated list of hosts, infection sites and localities for cardicola spp. | cardicola langeli n. sp. (digenea: aporocotylidae) infects the heart of sheepshead, archosargus probatocephalus (walbaum, 1792) (perciformes: sparidae) in the northern gulf of mexico off horn island (type locality), mississippi, usa. the new species is described herein using light and scanning electron microscopy of adult specimens and can be most easily distinguished from the other 24 accepted species of cardicola short, 1953 by the combination of having (i) an ovovitelline duct that extends an ... | 2013 | 23539948 |
| morphology and molecular analysis of life-cycle stages of proctoeces maculatus (looss, 1901) (digenea: fellodistomidae) in the bizerte lagoon, tunisia. | the life cycle of proctoeces maculatus (looss, 1901) (digenea, fellodistomidae) was studied in bizerte lagoon (tunisia). three sequential hosts appear to be involved: the mediterranean mussel mytilus galloprovincialis lamarck, 1819 (mytilidae) as the first intermediate host; the polychaete sabella pavonina savigny, 1822 (sabellidae), as the second intermediate host; and fishes (lithognathus mormyrus (linnaeus, 1758) (sparidae), trachinotus ovatus (linnaeus, 1758) (carangidae) and sparus aurata l ... | 2016 | 26694018 |
| effects of pile driving on the residency and movement of tagged reef fish. | the potential effects of pile driving on fish populations and commercial fisheries have received significant attention given the prevalence of pile driving occurring in coastal habitats throughout the world. behavioral impacts of sound generated from these activities on fish typically have a greater area of influence than physical injury, and may therefore adversely affect a greater portion of the local population. this study used acoustic telemetry to assess the movement, residency, and surviva ... | 2016 | 27880786 |
| isolation and characterization of 24 polymorphic microsatellite loci for the study of genetic population structure of the sheepshead archosargus probatocephalus (actinopterygii, perciformes, sparidae). | the sheepshead (archosargus probatocephalus) is found in nearshore waters from nova scotia, canada, to rio grande do sul, brazil. in the southeastern united states two subspecies are recognized based on a number of meristic characters, primarily counts of melanistic pigment bars. the only previous study based on mtdna control-region sequence found limited divergence between those subspecies and isolation by distance among 15 locations from florida (atlantic ocean) to texas (gulf of mexico). in t ... | 2016 | 27129470 |
| behavioral response of reef fish and green sea turtles to midfrequency sonar. | there is growing concern over the potential effects of high-intensity sonar on wild fish populations and commercial fisheries. acoustic telemetry was employed to measure the movements of free-ranging reef fish and sea turtles in port canaveral, fl, in response to routine submarine sonar testing. twenty-five sheepshead (archosargus probatocephalus), 28 gray snapper (lutjanus griseus), and 29 green sea turtles (chelonia mydas) were tagged, with movements monitored for a period of up to 4 months us ... | 2016 | 26611089 |
| residency of reef fish during pile driving within a shallow pierside environment. | the potential effects of pile driving on fish populations and commercial fisheries have received significant attention given the prevalence of construction occurring in coastal habitats throughout the world. in this study, we used acoustic telemetry to assess the movement and survival of free-ranging reef fish in port canaveral, fl, in response to 35 days of pile driving at an existing wharf complex. the site fidelity and behavior of 15 sheepshead (archosargus probatocephalus) and 10 gray snappe ... | 2016 | 26610995 |
| contractile properties of the myotomal muscle of sheepshead, archosargus probatocephalus. | swimming in fishes is powered by myotomal red, white and pink skeletal muscle. slow swimming is powered by the red (slow-twitch muscle), fast speeds are achieved by the white (fast-twitch) muscle and pink muscle apparently serves an intermediate function. in recent years, the physiological properties and molecular composition of red (slow) and white (fast) muscle fibers have been well studied, while the intermediate pink muscle, which falls in a thin sheet between the superficial red muscle and ... | 2015 | 25676176 |
| monogenoidean parasites of the gill lamellae of the sheepshead archosargus probatocephalus (walbaum) (perciformes: sparidae) from the indian river lagoon, florida, with descriptions of four new species of euryhaliotrema kritsky & boeger, 2002 (dactylogyridae). | examination of the gill lamellae of three sheepshead archosargus probatocephalus (walbaum) from the indian river lagoon in florida revealed six species of monogenoidea: microcotyle archosargi maccallum, 1913 (microcotylidae); neobenedenia sp. (capsalidae); and four new species of euryhaliotrema kritsky & boeger, 2002 (dactylogyridae). the prevalence of all helminths was 100%, except for neobenedenia sp., which was represented by a single immature specimen. the four new species, euryhaliotrema ca ... | 2011 | 21161491 |
| parvalbumin correlates with relaxation rate in the swimming muscle of sheepshead and kingfish. | parvalbumin is a muscle protein that aids in relaxation from contraction. parvalbumin binds myoplasmic ca(2+) during contractions, reducing calcium concentration and enhancing relaxation. different isoforms of parvalbumin have varying affinities for calcium, and relaxation rates in skeletal muscle may be affected by variations in the isoforms of parvalbumin expressed. this study examines the effect of expression levels of parvalbumin isoforms on relaxation rate in the sheepshead, archosargus pro ... | 2006 | 16391345 |
| biochemical properties of black drum and sheepshead seabream skin collagen. | acid-soluble collagen (asc) and pepsin solubilized collagen (psc) were isolated from the skins of black drum (pogonias cromis) and sheepshead seabream (archosargus probatocephalus) harvested in the gulf of mexico coastal waters. the yields of ascs on dry basis from black drum and sheepshead were estimated at 2.3 and 2.6%, and the yields of pscs were 15.8 and 29.3%, respectively. analyses of molecular weight profile, amino acid composition, and secondary structure showed that the skin collagens f ... | 2003 | 14690401 |
| analysis of a marine fish cell line from a male sheepshead. | chromosomes from consecutive culture passages of a developing cell line from fin fibroblasts of a male sheepshead (archosargus probatocephalus) were analyzed. it was demonstrated that the modal chromosome number is 48. the chromosome types found in these cells included 8 submetacentrics, 8-12 acrocentrics, and 28-32 telocentrics. evidence suggests that the primary type of chromosomal alteration that occurred in cultured shf-1 cells is aneuploidy; a large metacentric chromosome of undetermined or ... | 2006 | 7391546 |