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Biological Sciences Peer-Reviewed Articles

2008

Articles 1 - 9 of 9

Full-Text Articles in Aquaculture and Fisheries

Abstracts Of Technical Papers Presented At The 100th Annual Meeting National Shellfisheries Association Providence, Rhode Island April 6–10, 2008, National Shellfisheries Association Aug 2008

Abstracts Of Technical Papers Presented At The 100th Annual Meeting National Shellfisheries Association Providence, Rhode Island April 6–10, 2008, National Shellfisheries Association

VIMS Articles

No abstract provided.


Co(2) Sensitivity Of Southern Ocean Phytoplankton, Pd Tortell, Cd Payne, Yy Li, S Trimborn, B Rost, Walker O. Smith Jr., Et Al. Jan 2008

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 ...


Biomarkers Of Oogenesis In Macoma Balthica Determined By Subtractive Immunization, E Bromage, Wc Long, S Kaattari Jan 2008

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 ...


Post-Settlement Survival And Growth Of The Suminoe Yster, Crassostrea Ariskensis, Exposed To Simulated Emersion Regimes, P.R. Kingsley-Smith, M.W. Luckenbach Jan 2008

Post-Settlement Survival And Growth Of The Suminoe Yster, 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 ...


Settlement Of Crassostrea Ariakensis Larvae: Effects Of Substrate, Biofilms, Sediment And Adult Chemical Cues, Mario N. Tamburri, Mark W. Luckenbach, Denise L. Brietburg, Stephanie M. Bonniwell Jan 2008

Settlement Of Crassostrea Ariakensis Larvae: Effects Of Substrate, Biofilms, Sediment And Adult Chemical Cues, Mario N. Tamburri, Mark W. Luckenbach, Denise L. Brietburg, Stephanie M. Bonniwell

VIMS Articles

The Suminoe oyster (Crassostrea ariakensis) is being considered for introduction into the Chesapeake Bay. However, our current understanding of the biology and ecology of C. ariakensis is insufficient to predict whether an introduction will be successful, provide desired benefits, or have adverse impacts. Behavior of native Eastern oyster (C. virginica) pediveligers has been studied for many years and it is well established that they use a variety of habitat characteristics when selecting a site for colonization. Perhaps the most important of these are chemical cues emitted by adult conspecifics, which can lead to gregarious larval settlement and dense, persistent reef ...


Influence Of Sociality On Allometric Growth And Morphological Differentiation In Sponge-Dwelling Alpheid Shrimp, E Toth, Je Duffy Jan 2008

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 ...


The Charisma Of Coastal Ecosystems: Addressing The Imbalance (Vol 32, Pg 2, 2008), Cm Duarte, Wc Dennison, Rj Orth, Tjb Carruthers Jan 2008

The Charisma Of Coastal Ecosystems: Addressing The Imbalance (Vol 32, Pg 2, 2008), Cm Duarte, Wc Dennison, Rj Orth, Tjb Carruthers

VIMS Articles

No abstract provided.


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, Wo Smith Jr., Et Al. Jan 2008

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, Wo 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 ...


Quantifying Fecundity In Macoma Balthica Using An Enzyme-Linked Immunosorbent Assay (Elisa), Wc Long, E Bromage, Rd Seitz, S Kaattari Jan 2008

Quantifying Fecundity In Macoma Balthica Using An Enzyme-Linked Immunosorbent Assay (Elisa), Wc Long, E Bromage, Rd Seitz, S Kaattari

VIMS Articles

Monoclonal antibodies specific to a heat shock protein 70-like protein expressed in the eggs of Macoma balthica (mb-HSP70) were employed to develop an enzyme-linked immunosorbent assay (ELISA) to quantify fecundity in females. The assay was specific to egg tissue, with no demonstrable reactivity with juvenile or male tissues. The concentration of mb-HSP70 increased as the female gonads matured, necessitating the determination of a calibration curve for future experiments. The number of eggs in females was positively correlated with body mass index (BMI), and clams with a BMI < 1.4 did not produce eggs. The estimated number of eggs per clam during the fall spawning period was similar to that observed in eastern North Atlantic populations in clams of similar size; clams with shell lengths from 16 to 18 mm had from 7000 to 60 000 eggs apiece. Larger clams had up to 450 000 eggs. This assay effectively quantifies eggs at any stage of gonadal development in which eggs can be distinguished microscopically and is easier and cheaper to perform than other techniques of comparable precision.