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- Fisheries Science Peer-Reviewed Articles (18)
- Aquatic Health Sciences Peer-Reviewed Articles (15)
- Biological Sciences Peer-Reviewed Articles (15)
- Physical Sciences Peer-Reviewed Articles (9)
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- Abstracts (1)
- Amphipods; biodiversity; complementarity; diversity; ecosystem function; grazers; herbivory; macroalgae (1)
- Antarctic Circumpolar Current; Dissolved Organic-Carbon; Marine-Phytoplankton; Biological Response; Iron Fertilization; Ross Sea; Dioxide; 170-Degrees-W; Productivity; Plankton (1)
- Aquaculture; Crassostrea Virginica; Eastern Oyster; Mtdna; Restoration; Rflp (1)
- Auditory Brain-Stem; Perch Bairdiella-Chrysoura; Inner-Ear; Sound Pressure; Cynoscion-Nebulosus; Hearing Sensitivity; Saccular Afferents; Pogonias-Cromis; Ambient Noise; Teleost (1)
- BLACK CARBON; ATMOSPHERIC AEROSOLS; CHEMICAL-COMPOSITION; UNITED-STATES; PARTICULATE MATTER; HUMIC SUBSTANCES; CHESAPEAKE BAY; FULVIC-ACIDS; ESI-MS; QUANTIFICATION (1)
- CCRM Peer Reviewed Articles (1)
- Charisma (1)
- Chemical cues (1)
- Clam Mercenaria-Mercenaria; Hard Clam; Pathogen; Disease (1)
- Clam Tapes-Decussatus; Crassostrea-Virginica; Protistan Parasite; Protozoan Parasite; Eastern Oyster; Ruditapes-Philippinarum; Superoxide Dismutases; Marinus Apicomplexa; Osmotic Tolerance; Chesapeake-Bay (1)
- Climate variability; Dermochelys coriacea; ENSO; gelatinous zooplankton; global warming; jellyfish; leatherback sea turtles (1)
- Coastal development; fish; nekton; Chesapeake Bay; shallow water habitats; ecological threshold; shoreline alteration; bulkhead; biotic integrity (1)
- Coastal habitats (1)
- Cod Gadus-Morhua; In-Situ; Theragra-Chalcogramma; Walleye Pollock; Tilt Angle; Tracking; Behavior; Distributions; Backscatter; Frequencies (1)
- Conference Proceedings (1)
- Confidence-Intervals; Published Research; Epidemiology; Probability; False; Power (1)
- Conservation (1)
- Coral-Reef Fishes; Spectral Sensitivity; Sea Fishes; Critical Illumination; Environmental Light; Sensory Development; Underwater Light; Teleost Fishes; Pigments; Marine (1)
- Crab Portunus-Pelagicus; Disease Hematodinium Sp.; In-Situ Hybridization; Panulirus-Argus-Virus-1 Pav1; Litopenaeus-Vannamei; Chionoecetes-Opilio; Callinectes-Sapidus; Moreton Bay; Wssv; Shrimp (1)
- Crassostrea Ariakensis; Bonamia; Salinity; Persistence; Transmission; Experimental; Introduction; Suminoe Oyster (1)
- Crassostrea Oysters; Species Identification; Its-1; Coi; Pcr/Rflp (1)
- Crassostrea Virginica; Hemocytes; Oyster; Oyster Parasite; Perkinsus Marinas; Reactive Oxidative Intermediates; Triclosan (1)
- Crassostrea ariakensis (1)
- Decline (1)
Articles 31 - 57 of 57
Full-Text Articles in Life Sciences
Two New Genera And Three New Species Of Leeches (Hirudinida:Piscicolidae) From New Zealand Marine Fishes, Em Burreson, Ji Williams
Two New Genera And Three New Species Of Leeches (Hirudinida:Piscicolidae) From New Zealand Marine Fishes, Em Burreson, Ji Williams
VIMS Articles
The marine leech fauna of New Zealand is poorly known and based primarily on studies by Richardson in the 1950s. Three new species have recently been discovered. Dollfusobdella kaikourae n. gen.. n. sp. is described from Kaikoura, New Zealand parasitising pectoral fins of Scorpaena cardinalis, and thornfish, Bovichtus variegatus. It is characterised by a cylindrical body widest at the posterior portion Of the urosome and tapering, gradually to the oral sucker: the total length is not known to exceed 10 mm. The urosome segments are 3-annulate. each with large tubercles dorsally and smaller tubercles ventrally, but lacking Pulsatile vesicles. The …
Release Of Biodegradable Dissolved Organic Matter From Ancient Sedimentary Rocks, S Schillawski, S Petsch
Release Of Biodegradable Dissolved Organic Matter From Ancient Sedimentary Rocks, S Schillawski, S Petsch
VIMS Articles
Sedimentary rocks contain the largest mass of organic carbon on Earth, yet these reservoirs are not well integrated into modern carbon budgets. Here we describe the release of dissolved organic matter (DOM) from OM-rich sedimentary rocks under simulated weathering conditions. Results from column experiments demonstrate slow, sustained release of DOM from ancient sedimentary rocks under simulated weathering conditions. (1)H-NMR analysis of shale-derived DOM reveals a highly aliphatic, carbohydrate-poor material distinct from other natural DOM pools. Shale-derived DOM is rapidly assimilated and biodegraded by aerobic heterotrophic bacteria. Consequently, no compositional signature of shale-derived DOM other than (14)C-depletion is likely to persist …
Influence Of Sociality On Allometric Growth And Morphological Differentiation In Sponge-Dwelling Alpheid Shrimp, E Toth, Je Duffy
Influence Of Sociality On Allometric Growth And Morphological Differentiation In Sponge-Dwelling Alpheid Shrimp, E Toth, Je Duffy
VIMS Articles
Eusocial societies are defined by a reproductive division of labour between breeders and nonbreeders that is often accompanied by morphological differentiation. Some eusocial taxa are further characterized by a subdivision of tasks among nonbreeders, often resulting in morphological differentiation among different groups (subcastes) that specialize on different sets of tasks. We investigated the possibility of morphological castes in eusocial shrimp colonies (Zuzalpheus, formerly part of Synalpheus) by comparing growth allometry and body proportions of three eusocial shrimp species with three pair-forming species (species where reproductive females and males occur in equal sex ratios). Allometry of eusocial species differed in several …
What Exactly Are You Inferring? A Closer Look At Hypothesis Testing, Mc Newman
What Exactly Are You Inferring? A Closer Look At Hypothesis Testing, Mc Newman
VIMS Articles
This critical review describes the confused application of significance tests in environmental toxicology and chemistry that often produces incorrect inferences and indefensible regulatory decisions. Following a brief review of statistical testing theory, nine recommendations are put forward. The first is that confidence intervals be used instead of hypothesis tests whenever possible. The remaining recommendations are relevant if hypothesis tests are used. They are as follows: Define and justify Type I and II error rates a priori; set and justify an effect size a priori; do not confuse p(E vertical bar H-0) and p(H-0 vertical bar E); design tests permitting Positive …
Transmission Of Panulirus Argus Virus 1 (Pav1) And Its Effect On The Survival Of Juvenile Caribbean Spiny Lobster, Mj Butler, Dc Behringer, Jeffrey D. Shields
Transmission Of Panulirus Argus Virus 1 (Pav1) And Its Effect On The Survival Of Juvenile Caribbean Spiny Lobster, Mj Butler, Dc Behringer, Jeffrey D. Shields
VIMS Articles
The Caribbean spiny lobster Panulirus argus, an important fisheries species, is host to Panulirus argus virus 1 (PaV1), a lethal, unclassified virus-the first found in any species of lobster-prevalent in juvenile lobsters. We describe a series of laboratory experiments aimed at assessing the likely modes of disease transmission, determining the survival of lobsters relative to each transmission pathway and identifying potential alternate hosts. Given evidence for lower prevalence of PaV1 in large lobsters, the effect of lobster size on susceptibility was also examined. Results demonstrated that PaV1 can be transmitted to juvenile lobsters via inoculation, ingestion of diseased tissue, contact …
Effects Of Triclosan On The Oyster Parasite, Perkinsus Marinus And Its Host, The Eastern Oyster, Crassostrea Virginica, Fu-Lin E. Chu, Eric D. Lund, Jennifer A. Podbesek
Effects Of Triclosan On The Oyster Parasite, Perkinsus Marinus And Its Host, The Eastern Oyster, Crassostrea Virginica, Fu-Lin E. Chu, Eric D. Lund, Jennifer A. Podbesek
VIMS Articles
Because temperature plays an important role on progression and transmission of disease caused by Perkinsus marinus in the field. the effects of triclosan on the viability of P. marinus meronts (trophozoites) and oyster hemocytes were tested at a range of environmental relevant temperatures. Additionally, we examined the triclosan effect on reactive oxidative intermediate production (ROI) by oyster hemocytes and tested the efficacy of treating infected oysters with triclosan in eliminating/ reducing P. marinus infection in a pilot experiment. When P. marinus cultivated at 13 degrees C, 20 degrees C, and 28 degrees C was exposed to triclosan at corresponding temperatures, …
Post-Settlement Survival And Growth Of The Suminoe Oyster, Crassostrea Ariskensis, Exposed To Simulated Emersion Regimes, P.R. Kingsley-Smith, M.W. Luckenbach
Post-Settlement Survival And Growth Of The Suminoe Oyster, Crassostrea Ariskensis, Exposed To Simulated Emersion Regimes, P.R. Kingsley-Smith, M.W. Luckenbach
VIMS Articles
In high salinity habitats along the Middle and South Atlantic coasts of the United States the Eastern oyster, Crassostrea virginica occupies an intertidal refuge from predation, facilitated by its tolerance of aerial exposure and associated desiccation and temperature stress. Observations of the Suminoe oyster, C. ariakensis in its native environments in Asia reveal that this species is most commonly found subtidally or in the very low intertidal zone, suggesting that it may be less tolerant of aerial exposure. With serious consideration being given to introducing C. ariakensis to the mid-Atlantic region, it is important to understand the ability of this …
Stock Assessment Of Protogynous Fish: Evaluating Measures Of Spawning Biomass Used To Estimate Biological Reference Points, En Brooks, Kw Shertzer, T Gedamke, Ds Vaughan
Stock Assessment Of Protogynous Fish: Evaluating Measures Of Spawning Biomass Used To Estimate Biological Reference Points, En Brooks, Kw Shertzer, T Gedamke, Ds Vaughan
VIMS Articles
In stock assessments, recruitment is typically modeled as a function of females only. For protogynous stocks, however, disproportionate fishing on males increases the possibility of reduced fertilization rates. To incorporate the importance of males in protogynous stocks, assessment models have been used to predict recruitment not just from female spawning biomass (S-f), but also from that of males (S-m) or both sexes (S-b). We conducted a simulation study to evaluate the ability of these three measures to estimate biological reference points used in fishery management. Of the three, S-f provides best estimates if the potential for decreased fertilization is weak, …
Anti-Lipopolysaccharide Factors In The American Lobster Homarus Americanus: Molecular Characterization And Transcriptional Response To Vibrio Fluvialis Challenge, Km Beale, Dw Towle, N Jayasundara, Cm Smith, Jeffrey D. Shields, Hamish J. Small, Sj Greenwood
Anti-Lipopolysaccharide Factors In The American Lobster Homarus Americanus: Molecular Characterization And Transcriptional Response To Vibrio Fluvialis Challenge, Km Beale, Dw Towle, N Jayasundara, Cm Smith, Jeffrey D. Shields, Hamish J. Small, Sj Greenwood
VIMS Articles
Two partial mRNA sequences predicted to encode anti-lipopolysaccharide factors (ALFs) were identified among expressed sequence tags generated from the American lobster Homarus americanus and complete cDNA sequences were obtained from library clones. Comparison of the translated amino acid sequences to those publicly available confirmed similarity to arthropod anti-lipopolysaccharide factors. Both protein sequences, designated ALFHa-1 and ALFHa-2, contained an N-terminal signal peptide and two half-cysteines participating in a disulfide bridge, features conserved in other ALFs. Predicted secondary structures were similar to that described for the ALF from the horseshoe crab Limulus polyphemus. As part of an exploratory study of immunity in …
Quantifying Benthic Exchange Of Fine Sediment Via Continuous, Noninvasive Measurements Of Settling Velocity And Bed Erodibility, Carl T. Friedrichs, Grace M. Cartright, Pj Dickhudt
Quantifying Benthic Exchange Of Fine Sediment Via Continuous, Noninvasive Measurements Of Settling Velocity And Bed Erodibility, Carl T. Friedrichs, Grace M. Cartright, Pj Dickhudt
VIMS Articles
No abstract provided.
Population Structure Of Striped Marlin (Kajikia Audax) In The Pacific Ocean Based On Analysis Of Microsatellite And Mitochondrial Dna, Jr Mcdowell, J. E. Graves
Population Structure Of Striped Marlin (Kajikia Audax) In The Pacific Ocean Based On Analysis Of Microsatellite And Mitochondrial Dna, Jr Mcdowell, J. E. Graves
VIMS Articles
Genetic variation was surveyed at five microsatellite loci and the mitochondrial control region (819 bp) to test for the presence of genetic stock structure in striped marlin (Kajikia audax) collections taken from seven locations throughout the Pacific Ocean. Temporal replicates separated by 9 years were taken off Japan, and three temporal samples spanning 11 years were collected off the coast of eastern Australia. Analyses of multilocus microsatellite genotypes and mitochondrial control region sequences showed no significant heterogeneity among collections taken from the same location in different years; however, significant spatial genetic heterogeneity was observed across all samples for microsatellite markers …
Melting Glaciers: A Probable Source Of Ddt To The Antarctic Marine Ecosystem, Hn Geisz, Rm Dickhut, Ma Cochran, Wr Fraser, Hw Ducklow
Melting Glaciers: A Probable Source Of Ddt To The Antarctic Marine Ecosystem, Hn Geisz, Rm Dickhut, Ma Cochran, Wr Fraser, Hw Ducklow
VIMS Articles
Persistent organic pollutants reach polar regions by long-range atmospheric transport and biomagnify through the food web accumulating in higher trophic level predators. We analyzed Adelie penguin (Pygoscelis adeliae) samples collected from 2004 to 2006 to evaluate current levels of Sigma DDT (p,p'-DDT + p,p'-DDE) in these birds, which are confined to Antarctica. Ratios of p,p'-DDT to p,p'-DDE in Adelie penguins have declined significantly since 1964 indicating current exposure to old rather than new sources of Sigma DDT. However, Sigma DDT has not declined in Adelie penguins from the Western Antarctic Peninsula for more than 30 years and the presence of …
Photosynthetic Maximum Quantum Yield Increases Are An Essential Component Of The Southern Ocean Phytoplankton Response To Iron, Mr Hiscock, Vp Lance, Am Apprill, Rr Bidigare, Zi Johnson, Walker O. Smith Jr., Et Al.
Photosynthetic Maximum Quantum Yield Increases Are An Essential Component Of The Southern Ocean Phytoplankton Response To Iron, Mr Hiscock, Vp Lance, Am Apprill, Rr Bidigare, Zi Johnson, Walker O. Smith Jr., Et Al.
VIMS Articles
It is well established that an increase in iron supply causes an increase in total oceanic primary production in many regions, but the physiological mechanism driving the observed increases has not been clearly identified. The Southern Ocean iron enrichment experiment, an iron fertilization experiment in the waters closest to Antarctica, resulted in a 9-fold increase in chlorophyll (Chl) concentration and a 5-fold increase in integrated primary production. Upon iron addition, the maximum quantum yield of photosynthesis (phi(m)) rapidly doubled, from 0.011 to 0.025 mol C.mol quanta(-1). Paradoxically, this increase in light-limited productivity was not accompanied by a significant increase in …
The Influence Of Beam Position And Swimming Direction On Fish Target Strength, Mj Henderson, Jk Horne, Rh Towler
The Influence Of Beam Position And Swimming Direction On Fish Target Strength, Mj Henderson, Jk Horne, Rh Towler
VIMS Articles
Fish orientation is consistently identified as a major influence on fish target strength (TS). Generally, orientation is defined as the tilt angle of the fish with respect to the acoustic transducer, whereas a more accurate definition includes tilt, roll, and yaw. Thus far, the influences of roll and yaw on fish TS have only been examined cursorily. We used in situ single-target data to create fish tracks, to estimate fish tilt and yaw, and correlated these estimates with TS. The results show that tilt, yaw, and beam position have a significant influence on fish TS. To investigate further how yaw …
Co(2) Sensitivity Of Southern Ocean Phytoplankton, Pd Tortell, Cd Payne, Yy Li, S Trimborn, B Rost, Walker O. Smith Jr., Et Al.
Co(2) Sensitivity Of Southern Ocean Phytoplankton, Pd Tortell, Cd Payne, Yy Li, S Trimborn, B Rost, Walker O. Smith Jr., Et Al.
VIMS Articles
The Southern Ocean exerts a strong impact on marine biogeochemical cycles and global air-sea CO(2) fluxes. Over the coming century, large increases in surface ocean CO(2) levels, combined with increased upper water column temperatures and stratification, are expected to diminish Southern Ocean CO(2) uptake. These effects could be significantly modulated by concomitant CO(2)-dependent changes in the region's biological carbon pump. Here we show that CO(2) concentrations affect the physiology, growth and species composition of phytoplankton assemblages in the Ross Sea, Antarctica. Field results from in situ sampling and ship-board incubation experiments demonstrate that inorganic carbon uptake, steady-state productivity and diatom …
Biomarkers Of Oogenesis In Macoma Balthica Determined By Subtractive Immunization, E Bromage, Wc Long, S Kaattari
Biomarkers Of Oogenesis In Macoma Balthica Determined By Subtractive Immunization, E Bromage, Wc Long, S Kaattari
VIMS Articles
We employed the technique of subtractive immunization (SI) to identify specific biomarkers of oocyte development in Macoma balthica. Analysis revealed that 2 novel proteins (45 and 96 kDa) were induced during female gametogenesis that were neither present during other life stages, nor in male clam tissues. A total of 78 viable hybridomas were specific for either the 45 or 96 kD M balthica proteins. Subsequent peptide fragment analysis of the 96 kDa protein revealed that it was essentially identical (>99.9%) to the evolutionarily conserved heat shock protein 70 family. The resultant hybridomas were screened for their utility in a …
The Trophic Dynamics Of Summer Flounder (Paralichthys Dentatus) In Chesapeake Bay, Robert J. Latour, James Gartland, Christopher F. Bonzek, Raemarie Johnson
The Trophic Dynamics Of Summer Flounder (Paralichthys Dentatus) In Chesapeake Bay, Robert J. Latour, James Gartland, Christopher F. Bonzek, Raemarie Johnson
VIMS Articles
Data on the trophic dynamics of fishes are needed for management of ecosystems such as Chesapeake Bay. Summer flounder (Paralichthys dentatus) are an abundant seasonal resident of the bay and have the potential to impact food-web dynamics. Analyses of diet data for late juvenile and adult summer flounder collected from 2002-2006 in Chesapeake Bay were conducted to characterize the role of this flatfish in this estuary and to contribute to our understanding of summer flounder trophic dynamics throughout its range. Despite the diversity of prey, nearly half of the diet comprised mysid shrimp (Neomysis spp.) and bay anchovy (Anchoa mitchilli). …
Anatomy And Growth Of A Holocene Clinothem In The Gulf Of Papua, Rudy Slingerland, Neal W. Driscoll, John D. Milliman, Scott R. Miller, Elizabeth A. Johnstone
Anatomy And Growth Of A Holocene Clinothem In The Gulf Of Papua, Rudy Slingerland, Neal W. Driscoll, John D. Milliman, Scott R. Miller, Elizabeth A. Johnstone
VIMS Articles
High-resolution seismic profiles and sedimentological data from grab samples and long cores provide an unprecedented picture of the structure, sedimentology, and late Quaternary development of two Gulf of Papua ( GoP) clinothems, one probably Stage 3 and 4 in age and one Holocene in age. The older was partially eroded during Stage 2 and partially covered by the younger clinothem during Stage 1. The younger clinothem consists of three stratigraphic units separated by two surfaces of erosion, bypass, or correlative surfaces of lap. The surfaces were formed by changes in accommodation and sediment supply. The underlying physiography of the older …
Shell Length-At-Age Relationships In James River, Virginia, Oysters (Crassostrea Virginica) Collected Four Centuries Apart, Juliana M. Harding, Roger L. Mann, Melissa Southworth
Shell Length-At-Age Relationships In James River, Virginia, Oysters (Crassostrea Virginica) Collected Four Centuries Apart, Juliana M. Harding, Roger L. Mann, Melissa Southworth
VIMS Articles
Eastern oysters were ecologically and structurally dominant features of the Chesapeake Bay prior to European colonization. Four centuries of harves pressure, habitat degradation, and more recently, disease activity have affected extant oyster population demographics. We compared population demographics and age-at-shell length relationships for modern mesohaline James River oyster populations with James River oysters collected in the years 1611 to 1612 by Jamestown settlers. Historic oyster collections made by hand included a more complete demographics than modern samples collected with patent longs. Historic oysters had significantly faster growth rates than modern oyster populations. Modern oysters larger than 30-40 mm SL or …
Discrimination Of Nine Crassostrea Oyster Species Based Upon Restriction Fragment-Length Polymorphism Analysis Of Nuclear And Mitochondrial Dna Markers, Jan F. Cordes, Jie Xiao, Kimberly S. Reece
Discrimination Of Nine Crassostrea Oyster Species Based Upon Restriction Fragment-Length Polymorphism Analysis Of Nuclear And Mitochondrial Dna Markers, Jan F. Cordes, Jie Xiao, Kimberly S. Reece
VIMS Articles
A molecular genetic identification key for nine species of Crassostrea oysters was developed based on restriction fragment-length polymorphism (RFLP) analyses of nuclear and mitochondrial DNA markers. Seven of nine species were unambiguosly differentiated based on digestion of the ITS-1 nuclear marker with Hae III an Hinf I. Individual species exhibited one or two RFLP patterns for each restriction endonuclease, and only C. madrasensis and C. iredalei were indistinguishable electrophoretically. All nine species were unambiguosly differentiated based on digestion of the COI mitochondrial marker with Dde I and Hae III. Species exhibited one or two RFLP patterns for each restriction endonuclease, …
Decadal Trends In Age Structure And Recruitment Patterns Of Ocean Quahogs Arctica Islandica From The Mid-Atlantic Bight In Relation To Water Temperature, Juliana M. Harding, Se King, En Powell, Roger Mann
Decadal Trends In Age Structure And Recruitment Patterns Of Ocean Quahogs Arctica Islandica From The Mid-Atlantic Bight In Relation To Water Temperature, Juliana M. Harding, Se King, En Powell, Roger Mann
VIMS Articles
Occan quahogs (Arctica islandica) are long-lived bivalves. Distributionl patterns and biology of ocean quahogs ill the Mid-Atlantic Bight (MAB) off the cast coast of North America are directly related to bottom water temperatures. We examined long term recruitment patterns for ocean quahogs across temporal (decadal) and spatial (latitudinal. bathymetric) scales Using a spatially defined (Long Island Sound to Chesapeake Bay mouth) population encompassing a broad size (age) range of animals that had not yet recruited to the commercial fishery [(SL)], An age-at-length relationship for quahogs less than 80 mm SL is described using a power function. Quahog age did not …
Crassostrea Ariakensis In Chesapeake Bay: Growth, Disease And Mortality In Shallow Subtidal Environments, Kt Paynter, Jd Goodwin, Me Chen, Nj Ward, Mw Sherman, Dw Meritt, Standish K. Allen
Crassostrea Ariakensis In Chesapeake Bay: Growth, Disease And Mortality In Shallow Subtidal Environments, Kt Paynter, Jd Goodwin, Me Chen, Nj Ward, Mw Sherman, Dw Meritt, Standish K. Allen
VIMS Articles
In April 2004, triploid native (Crassostrea virginica) and nonnative (Crassostrea ariakensis) oysters were deployed in cages at four sites along a salinity gradient in Chesapeake Bay. In Maryland, the lowest salinity site was located in the Severn River and two low to mid-salinity sites were located in the Choptank and Patuxent Rivers. The highest salinity site was located in the York River in Virginia. Growth, disease acquisition, and mortality were measured in the deployed oysters through August 2006. Although ANOVA revealed that the nonnative oysters were significantly larger at the end of the experiment than the native oysters at all …
Size-Selectivity Of The Northwest Atlantic Sea Scallop (Placopecten Magellanicus) Dredge, Noelle Yochum, William D. Dupaul
Size-Selectivity Of The Northwest Atlantic Sea Scallop (Placopecten Magellanicus) Dredge, Noelle Yochum, William D. Dupaul
VIMS Articles
A size-selectivity curve was constructed to characterize the performance of the New Bedford style Atlantic sea scallop (Placopecten magellanicus, Gmelin 1791) dredge when it is configured to meet the requirements of Amendment #10 to the Sea Scallop Fishery Management Plan. The curve was generated using the SELECT model on catch-at-length data, obtained by simultaneously towing a New Bedford style dredge and a nonselective National Marine Fisheries Service sea scallop survey dredge from commercial scallop vessels. Data were collected during three cruises in the Northwest Atlantic between 2005 and 2006. The resultant selectivity curve yielded a 50% retention length of 100.1 …
Technical Note: Molecular Characterization Of Aerosol-Derived Water Soluble Organic Carbon Using Ultrahigh Resolution Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, A. S. Wozniak, J. E. Bauer, R. L. Sleighter, R.M Dickhut, P.G. Hatcher
Technical Note: Molecular Characterization Of Aerosol-Derived Water Soluble Organic Carbon Using Ultrahigh Resolution Electrospray Ionization Fourier Transform Ion Cyclotron Resonance Mass Spectrometry, A. S. Wozniak, J. E. Bauer, R. L. Sleighter, R.M Dickhut, P.G. Hatcher
VIMS Articles
Despite the acknowledged relevance of aerosol-derived water-soluble organic carbon (WSOC) to climate and biogeochemical cycling, characterization of aerosol WSOC has been limited. Electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry (ESI FT-ICR MS) was utilized in this study to provide detailed molecular level characterization of the hi(,h molecular weight (HMW; m/z>223) component of aerosol-derived WSOC collected from rural sites in Virginia and New York, USA. More than 3000 peaks were detected by ESI FT-ICR MS within a m/z range of 223-600 for each sample. Approximately 86% (Virginia) and 78% (New York) of these peaks were assigned molecular formulas …
Feeding Patterns And Predation Potential Of Scyphomedusae In A Highly Productive Upwelling Region, Cynthia L. Suchman, Elizabeth A. Daly, Julie E. Keister, William T. Peterson
Feeding Patterns And Predation Potential Of Scyphomedusae In A Highly Productive Upwelling Region, Cynthia L. Suchman, Elizabeth A. Daly, Julie E. Keister, William T. Peterson
VIMS Articles
We quantified diet and predation rates for large scyphomedusae from a coastal upwelling region. In the Northern California Current, early stages of euphausiids, gelatinous taxa, and cladocerans were particularly vulnerable to predation by Chrysaora fuscescens, Aurelia labiata, and Phacellophora camtschatica, whereas copepods were not. Moreover, C. fuscescens had the potential to deplete the standing stock of euphausiid eggs where predator and prey overlapped. During August 2002, C. fuscescens ingested an average 32.5% of the standing stock of euphausiid eggs each day at stations close to shore and north of Cape Blanco (42.9 degrees N, 126.6 degrees W) where maximum abundances …
Development, Biological Regulation, And Fate Of Ctenophore Blooms In The York River Estuary, Chesapeake Bay, Robert H. Condon, Deborah K. Steinberg
Development, Biological Regulation, And Fate Of Ctenophore Blooms In The York River Estuary, Chesapeake Bay, Robert H. Condon, Deborah K. Steinberg
VIMS Articles
Blooms of the lobate ctenophore Mnemiopsis leidyi proliferate in estuaries and coastal regions worldwide. However, their role in food web structure and carbon flow between trophic levels is not fully understood. During 2003-2006, we conducted field surveys along a salinity gradient in the lower York River, a sub-estuary of the Chesapeake Bay, to determine factors controlling the timing and magnitude of M leidyi blooms, and to evaluate effects of gelatinous zooplankton on carbon cycling. Samples for density, biovolume, and carbon content of ctenophores, scyphomedusae, and mesozooplankton were collected using surface net tows and quantified in the laboratory. Historical published records …
Additional Records Of Deep-Sea Fishes From Off Greater New England, Ke Hartel, Cp Kenaley, Jk Galbraith, Tt Sutton
Additional Records Of Deep-Sea Fishes From Off Greater New England, Ke Hartel, Cp Kenaley, Jk Galbraith, Tt Sutton
VIMS Articles
A recent review of deep-sea fishes captured deeper than 200 m off greater New England, from the Scotian Shelf at 44''N to the southern New England Shelf at about 38°N, documented 591 species. Subsequent trawling activity and reviews of deep-sea taxa occurring in the area have revealed that an additional 40 species inhabit the deep sea off New England. Thirty-two of these new records were eaptured in the course of 44 bottom trawls and 94 mid-water trawls over or in the proximity of Bear Seamount (39''55'N. 67°30'W). Five of the 40 species have been described as new to science, at …