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- Fisheries Science Peer-Reviewed Articles (8)
- Biological Sciences Peer-Reviewed Articles (6)
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- Aquatic Health Sciences Peer-Reviewed Articles (1)
- CCRM Peer Reviewed Articles (1)
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- Climate change (1)
- Copepod; Diet; Food quality; Excretion; Omnivory; Carbon; Nitrogen; Phosphorus (1)
- Coral; Heat stock proteins; hsp; Polyp; Proteins; Stress (1)
- Crassostrea Ariakensis; Growth; Non-Native Oysters; Species Introduction; Survival (1)
- ESL Publications (1)
- Epifaunal; Nutrient addition; Sediment organic matter; Seagrass; Zostera marina; Fatty acids (1)
- Euphausia-superba Dana; Ross Sea; Southern-Ocean; Community Structure (1)
- Land use planning (1)
- Multispecies Research Group Peer Reviewed Articles (1)
- Oyster; Eastern Oyster; Crassostrea Virginica; Population Demographics; Mortality; Recruitment; James River; Virginia (1)
- Physical Sciences Peer-Reviewed Articles (1)
- Pop-up satellite archival tag; PSAT; Hook type; Soak time; Bycatch handling trauma; Longline fishery (1)
- Ribosomal-Rna; Secondary Structure; Larval Development; Fishes Teleostei (1)
- Sea level rise (1)
- Shore protection (1)
- Tuna Thunnus-obesus; Makaira-nigricans; Indo-Pacific; Istiophorid Billfishes; (1)
- Veined Rapa Whelk; Rapana Venosa; Alexandrium Monilatum; Goniodomin A; Chesapeake Bay; Toxicity (1)
- Walleye pollock; Capelin; Eulachon; Diet; Geographic variability (1)
- Wetland migration (1)
Articles 1 - 14 of 14
Full-Text Articles in Life Sciences
Nutrient Enrichment And Food Web Composition Affect Ecosystem Metabolism In An Experimental Seagrass Habitat, Amanda C. Spivak, Elizabeth A. Canuel, J. Emment Duffy, J. Paul Richardson
Nutrient Enrichment And Food Web Composition Affect Ecosystem Metabolism In An Experimental Seagrass Habitat, Amanda C. Spivak, Elizabeth A. Canuel, J. Emment Duffy, J. Paul Richardson
VIMS Articles
Food web composition and resource levels can influence ecosystem properties such as productivity and elemental cycles. In particular, herbivores occupy a central place in food webs as the species richness and composition of this trophic level may simultaneously influence the transmission of resource and predator effects to higher and lower trophic levels, respectively. Yet, these interactions are poorly understood.
A Molecular Phylogeny Of The Remoras And Their Relatives, Kn Gray, Jan Mcdowell, Bb Collette, Je Graves
A Molecular Phylogeny Of The Remoras And Their Relatives, Kn Gray, Jan Mcdowell, Bb Collette, Je Graves
VIMS Articles
The Echeneoidea comprise three families of cosmopolitan tropical/subtropical marine fishes: the Echeneidae (remoras), Coryphaenidae (dolphin fishes), and Rachycentridae (cobia). Complete nucleotide sequences from the mitochondrial 12S rRNA, 16S rRNA, protein-coding ND2, and nuclear ITS-1 gene regions were used to reconstruct the phylogenetic history of these fishes. Parsimony, maximum likelihood, and Bayesian analyses of combined data sets resolved trees of similar topology. Congruent with evolutionary hypotheses based on larval morphology, a monophyletic Rachycentridae + Coryphaenidae was resolved with high support. Within a monophyletic Echeneidae, the subfamilies Echeneinae and Remorinae were monophyletic. In agreement with recent morphological analyses, the genus Remora was …
Epifaunal Community Composition And Nutrient Addition Alter Sediment Organic Matter Composition In A Natural Eelgrass Zostera Marina Bed: A Field Experiment, Amanda C. Spivak, Elizabeth A. Canuel, J. Emmett Duffy, James G. Douglass
Epifaunal Community Composition And Nutrient Addition Alter Sediment Organic Matter Composition In A Natural Eelgrass Zostera Marina Bed: A Field Experiment, Amanda C. Spivak, Elizabeth A. Canuel, J. Emmett Duffy, James G. Douglass
VIMS Articles
Eutrophication and fishing are common perturbations in aquatic ecosystems that have pervasive effects on community structure, including species diversity and abundance. While sediment biogeochemical processes probably respond to these stressors, the linkages to ecosystem functioning remain poorly understood. To explore these linkages, we experimentally manipulated water column nutrient levels and food web composition (i.e. predator and grazer presence and absence) in a factorial design using field enclosures situated in a natural eelgrass Zostera marina bed. After 28 d, we quantified sediment organic matter (SOM) abundance and composition using measures of total organic carbon and nitrogen as well as fatty acid …
State And Local Governments Plan For Development Of Most Land Vulnerable To Rising Sea Level Along The Us Atlantic Coast, J. G. Titus, Carl Hershner
State And Local Governments Plan For Development Of Most Land Vulnerable To Rising Sea Level Along The Us Atlantic Coast, J. G. Titus, Carl Hershner
VIMS Articles
Rising sea level threatens existing coastal wetlands. Overall ecosystems could often survive by migrating inland, if adjacent lands remained vacant. On the basis of 131 state and local land use plans, we estimate that almost 60% of the land below 1 m along the US Atlantic coast is expected to be developed and thus unavailable for the inland migration of wetlands. Less than 10% of the land below 1 m has been set aside for conservation. Environmental regulators routinely grant permits for shore protection structures (which block wetland migration) on the basis of a federal finding that these structures have …
Estimation Of Bottom Trawl Catch Efficiency For Two Demersal Fishes, The Atlantic Croaker And White Perch, In Chesapeake Bay, Joel C. Hoffman, Chris F. Bonzek, Robert J. Latour
Estimation Of Bottom Trawl Catch Efficiency For Two Demersal Fishes, The Atlantic Croaker And White Perch, In Chesapeake Bay, Joel C. Hoffman, Chris F. Bonzek, Robert J. Latour
VIMS Articles
The use of fisheries-independent trawl survey data to estimate fish abundance in shallow coastal systems can present challenges for producing reliable population estimates. We used hydroacoustic and trawl data to estimate the catch efficiency of a demersal trawl that is presently used in surveys to support stock assessments in Chesapeake Bay, USA. Specifically, we determined the efficiency of catching Atlantic croakers Micropogonias undulatus and white perch Morone americana, two of the most common species captured in the trawl survey. Monotypic hauls (>90% by abundance) from 2003 to 2004 were used to estimate catch efficiency, defined as the ratio of …
Synergistic Effects Of Iron And Temperature On Antarctic Phytoplankton And Microzooplankton Assemblages, J. M. Rose, Y. Feng, Et Al, Walker O. Smith Jr., B. Sigist, S. Tozzi, Et Al
Synergistic Effects Of Iron And Temperature On Antarctic Phytoplankton And Microzooplankton Assemblages, J. M. Rose, Y. Feng, Et Al, Walker O. Smith Jr., B. Sigist, S. Tozzi, Et Al
VIMS Articles
Iron availability and temperature are important limiting factors for the biota in many areas of the world ocean, and both have been predicted to change in future climate scenarios. However, the impacts of combined changes in these two key factors on microbial trophic dynamics and nutrient cycling are unknown. We examined the relative effects of iron addition (+1 nM) and increased temperature (+4 degrees C) on plankton assemblages of the Ross Sea, Antarctica, a region characterized by annual algal blooms and an active microbial community. Increased iron and temperature individually had consistently significant but relatively minor positive effects on total …
An Investigation Of The Global Population Structure Of The Marlinsucker (Remora Osteochir) Inferred From Mitochondrial Control Region Dna Sequence Analysis, Gn Kurtis, Jan Mcdowell, Bb Collette, John Graves
An Investigation Of The Global Population Structure Of The Marlinsucker (Remora Osteochir) Inferred From Mitochondrial Control Region Dna Sequence Analysis, Gn Kurtis, Jan Mcdowell, Bb Collette, John Graves
VIMS Articles
Nucleotide sequences from the hypervariable mitochondrial control region were used to investigate phylogeographic structuring in the marlinsucker, Remora osteochir (Cuvier, 1829). Complete DNA sequences were isolated from 71 individuals collected from seven geographically distant sample locations (5 Atlantic and 2 Pacific). Analyses of molecular variance (AMOVA) and Phi st resolved significant levels of population structuring among collections from the Atlantic and Pacific oceans, whereas negligible levels of population structuring were resolved among collections from within the Atlantic or Pacific oceans. Cluster analysis of haplotypes based upon inter-haplotype divergences resolved two distinct evolutionary lineages, one composed of haplotypes that only occurred …
Survival And Growth Of Triploid Crassostrea Virginica (Gmelin, 1791) And C-Ariakensis (Fujita, 1913) In Bottom Environments Of Chesapeake Bay: Implications For An Introduction, Pr Kingsley-Smith, Hd Harwell, M. Lisa Kellogg, Standish K. Allen Jr., Donald W. Meritt, Kennedy Paynter, Mark Luckenbach
Survival And Growth Of Triploid Crassostrea Virginica (Gmelin, 1791) And C-Ariakensis (Fujita, 1913) In Bottom Environments Of Chesapeake Bay: Implications For An Introduction, Pr Kingsley-Smith, Hd Harwell, M. Lisa Kellogg, Standish K. Allen Jr., Donald W. Meritt, Kennedy Paynter, Mark Luckenbach
VIMS Articles
Survival and growth of triploid Crassostrea virginica and triploid C. ariakensis were investigated at four sites Surrounding Chesapeake Bay, United States, that varied tried in salinity, tidal regime, water depth, predation intensity and disease pressure. Four experimental treatments were established at each site: C. virginica; C. ariakensis; 50:50 of C. virginica: C. ariakensis: and shell only. Oysters were deployed at mean shell heights of 12.80 min and 13.85 mm (C. virginica and C. ariakensis, respectively), at an overall density of 347.5 oysters m(-2). Oyster survival and growth varied significantly, with site and species. Survival was significantly higher in C. virginica …
Population Studies Of The Native Eastern Oyster, Crassostrea Virginica, (Gmelin, 1791) In The James River, Virginia, Usa, Roger L. Mann, Melissa Southworth, Juliana M. Harding, James A. Wesson
Population Studies Of The Native Eastern Oyster, Crassostrea Virginica, (Gmelin, 1791) In The James River, Virginia, Usa, Roger L. Mann, Melissa Southworth, Juliana M. Harding, James A. Wesson
VIMS Articles
We describe oyster population trends in the James River, VA from 1993 through 2006 using quantitative fishery independent survey data collected using a stratified random design, The 23 reefs contained in the study area cover a total of 2.41 to 4.98 X 10(7) m(2). There is a marked pattern in density of oysters among X 10(7) m(2) and vary in individual size from 1.26 X 10(4) m(2) the reefs: during the Study period a small group of reefs comprising 5.4% of the total a rea consistently contained between 25.7 and 55.5% by number and 35.8 and 54.8% by biomass of …
Mortality Of The Veined Rapa Whelk, Rapana Venosa, In Relation To A Bloom Of Alexandrium Monilatum In The York River, United States, Juliana M. Harding, Roger L. Mann, P Moeller, Ms Hsia
Mortality Of The Veined Rapa Whelk, Rapana Venosa, In Relation To A Bloom Of Alexandrium Monilatum In The York River, United States, Juliana M. Harding, Roger L. Mann, P Moeller, Ms Hsia
VIMS Articles
Veined rapa whelks (Rapana venosa), carnivorous marine gastropods experienced significant mortality during an Alexandrium monilatum bloom in the lower York River, VA in September 2007. Rapa whelks stopped feeding as dissolved oxygen and chlorophyll concentrations increased with the development of the bloom. Whelk mortality was preceded by external signs of stress including reduced ventilation, inability to attach to hard Substrates, periodic Pumping of the opercular plate, and increased mucus production over a period of 24-48 h prior to death. High concentrations (2-7 mu g g(-1) tissue) of goniodimum A, a toxin produced by A. monilatum, were observed in bivalves attached …
Factors Influencing Mortality Estimates In Post-Release Survival Studies, Michael K. Musyl, Christopher D. Moyes, Richard Brill, Nuno M. Fragoso
Factors Influencing Mortality Estimates In Post-Release Survival Studies, Michael K. Musyl, Christopher D. Moyes, Richard Brill, Nuno M. Fragoso
VIMS Articles
Campana et al. (2009; Mar Ecol Prog Ser 387:241-253) explored the survival Of blue sharks Prionace glauca captured and released from the North Atlantic commercial longline fishery. We think that their comments and comparisons do not accurately reflect a previous survival study of blue sharks in Hawaii (Moyes et al. 2006; Trans Am Fish Soc 135:1389-1397). The differences in mortality between the studies, similar to 5% in the Hawaii-based fishery and similar to 35% in the North Atlantic fishery, were suggested to be due to failure of Moyes et al. (2006) to accurately reflect commercial fishing conditions. Careful examination of …
Ecology Of Small Neritic Fishes In The Western Gulf Of Alaska. Ii. Consumption Of Krill In Relation To Krill Standing Stock And The Physical Environment, Matthew T. Wilson, Christina M. Jump, Andre Buchheister
Ecology Of Small Neritic Fishes In The Western Gulf Of Alaska. Ii. Consumption Of Krill In Relation To Krill Standing Stock And The Physical Environment, Matthew T. Wilson, Christina M. Jump, Andre Buchheister
VIMS Articles
Krill (Euphausiacea) is a patchily distributed taxon whose availability may limit neritic fishes in temperate oceans. In the western Gulf of Alaska, krill-fish aggregations were associated with high-flow areas over the shelf. We examined fish impacts on krill standing stocks in areas of different temperature, salinity, and net current velocity. Samples were collected during September 2000, 2001, and 2003 over a 48-site grid within a known walleye pollock nursery. Krill were a dietary staple of the dominant fishes: walleye pollock Theragra chalcogramma, capelin Mallotus villosus, and eulachon Thaleichthys pacificus, but their proportion in diets varied by predator species and predator …
Effects Of Diet On Release Of Dissolved Organic And Inorganic Nutrients By The Copepod Acartia Tonsa, Grace K. Saba, Deborah K. Steinberg, Deborah A. Bronk
Effects Of Diet On Release Of Dissolved Organic And Inorganic Nutrients By The Copepod Acartia Tonsa, Grace K. Saba, Deborah K. Steinberg, Deborah A. Bronk
VIMS Articles
Acartia tonsa copepods are not limited to herbivory and can derive up to half their daily ration from predation on heterotrophic ciliates and dinoflagellates. The effects of an omnivorous diet on nutrient regeneration, however, remain unknown. In this study, we fed A. tonsa an exclusively carnivorous diet of either (1a) heterotrophic dinoflagellate Oxyrrhis marina or (1b) Gyrodinium dominans, (2) an exclusively herbivorous diet of Thalassiosira weissflogii diatoms, or (3) a mixed omnivorous diet. We measured the release rate, composition, and stoichiometry of dissolved organic carbon (DOC), dissolved organic phosphorus (DOP), and nitrogen (urea) in addition to the inorganic nutrients, ammonium …
Quantification Of Coral Heat Shock Proteins From Individual Coral Polyps, Erin Bromage, Lawrence Carpenter, Stephen Kaattari, Mark Patterson
Quantification Of Coral Heat Shock Proteins From Individual Coral Polyps, Erin Bromage, Lawrence Carpenter, Stephen Kaattari, Mark Patterson
VIMS Articles
The induction and regulation of heat shock proteins (hsps) is a significant defense mechanism that can preserve metabolic function and foster recovery from short-term stress events. Present coral sampling methodologies that involve hsp analysis often require the harvesting of large samples of live coral colonies that may already be stressed or in poor health. In the present study, 3 novel protocols were developed to: (1) extract single coral polyps, minimizing colony trauma; (2) purify protein from single coral polyps (approximately 12 mm); and (3) develop a more sensitive protein quantification method. The preliminary testing of 5 separate protein preparation methods …