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Monitoring The Abundance Of American Shad And River Herring In Virginia's Rivers - 2017 Annual Report, Eric J. Hilton, Rob Latour, Patrick E. McGrath, Brian Watkins, Ashleigh Magee 2018 Virginia Institute of Marine Science

Monitoring The Abundance Of American Shad And River Herring In Virginia's Rivers - 2017 Annual Report, Eric J. Hilton, Rob Latour, Patrick E. Mcgrath, Brian Watkins, Ashleigh Magee

Reports

This report describes the results of the twentieth year of a continuing study to estimate the relative abundance and assess the status of American shad (Alosa sapidissima) stocks in Virginia by monitoring the spawning runs in the James, York and Rappahannock rivers in spring 2017, evaluating hatchery programs, and contributing to coast-wide assessments (ASMFC 2007). We also report on two fishery-independent monitoring programs, one using staked gillnets in the Rappahannock River (year 2) and the other using anchor gillnets in the Chickahominy River (year 3; a major tributary of the James River),to determine relative abundance and stock structure for ...


Hawai'i Wildlife Fund V. County Of Maui, Lowell J. Chandler 2018 Alexander Blewett III School of Law at the University of Montana

Hawai'i Wildlife Fund V. County Of Maui, Lowell J. Chandler

Public Land and Resources Law Review

In Hawai’i Wildlife Fund v. County of Maui, the Ninth Circuit held that the plain language of the Clean Water Act provides jurisdiction over indirect discharges of pollutants from a point source into groundwater that is shown to be connected to navigable waters. The court found that studies confirmed pollutants entering the Pacific Ocean were fairly traceable to the County of Maui’s sewage disposal wells. In affirming the district court’s ruling, the Ninth Circuit held that Maui County violated the Clean Water Act by discharging pollutants into a navigable water without the required permit. The court also ...


Determining The Physiological And Behavioral Methods Of Salinity Tolerance In Corbicula Fluminea, John Warren Roden III 2018 East Tennessee State University

Determining The Physiological And Behavioral Methods Of Salinity Tolerance In Corbicula Fluminea, John Warren Roden Iii

Appalachian Student Research Forum

While a significant degree of salinity tolerance has been observed in the bivalve mollusk species Corbicula fluminea, the physiological and behavioral responses to changes in salinity by these organisms are not completely understood. It was hypothesized that Corbicula would initially avoid any salinity stress behaviorally through valve closure, but would eventually have to open to dispel anaerobic waste products and deal with the salinity. To explore this, Corbicula were collected and put through a series of experiments at salinity exposures of 0, 2.5, and 5.0ppt, with tissue water content and hemolymph osmolality being measured. After an initial 96-hour ...


Collaboration, Creativity, Compromise, And Conclusion: U.S. Coast Guard Modifies The Port Of Miami Anchorage Area, Paul D. Lehmann 2018 U.S. Coast Guard

Collaboration, Creativity, Compromise, And Conclusion: U.S. Coast Guard Modifies The Port Of Miami Anchorage Area, Paul D. Lehmann

Oceanography Faculty Proceedings, Presentations, Speeches, Lectures

No abstract provided.


The Effect Of Hypoxia On The Nervous System Of Aplysia Californica, Victor Escalona, Lynne Annette Fieber, Joseph Serafy 2018 University of Miami

The Effect Of Hypoxia On The Nervous System Of Aplysia Californica, Victor Escalona, Lynne Annette Fieber, Joseph Serafy

2018 Entries

The intertidal zone of California’s Pacific coast is home to the marine snail known as Aplysia californica, an organism that has found use as a model in experiments focused on understanding the basis of learning and memory. Its simple nervous system consisting of easily identifiable neurons, its life span of a year, and a readily-accessed aquacultured source from the National Resource for Aplysia make it an excellent model for ontogenetic, neural, and behavioral studies. Here, however, the focus was on strategies this species uses to survive in an environment rife with risks of hypoxia and desiccation during the tidal ...


Killi-Data News (Winter), Tyrone Genade 2018 Northwestern College, Iowa

Killi-Data News (Winter), Tyrone Genade

Killifish Research Review

Valued readers, it is with a heavy heart that I inform you that this is the last issue of Killi-Data News. The good news is that we will be back as Killifish Research Review. The dissolution of Killi-Data International created a prob- lem: how can the newsletter of a defunct organization live on without that organization? But other additional problems were building in the background. The first issue numbered 15 pages. The previous issue was 28 pages. The number of killifish related papers is increasing while time on our end (the editorial team) is running out. It takes a lot ...


Killi-Data News (Fall), Tyrone Genade 2018 Northwestern College, Iowa

Killi-Data News (Fall), Tyrone Genade

Killifish Research Review

Many interesting papers have been published over the last three months. The large volume of papers coupled with the start of the new college semester (and the workload it brings) delayed this issue of Killi-Data News. But better late than never—or so I hope! In this issue Richard van der Laan provides an insightful review of the recent Aphanius papers as to their taxonomic implications and questions. The systematic issues he raises show the importance of the Molecular project: we need to get more samples of the various cyprinodontiforme families to resolve unsettled systematic and taxonomic issues. In the ...


Killi-Data News (Summer), Tyrone Genade 2018 Northwestern College, Iowa

Killi-Data News (Summer), Tyrone Genade

Killifish Research Review

Over the last three months several interesting and exciting pa- pers have been published. By now most of you have heard the Nothobranchius fish poo news emanating from the Valenzano lab. That paper is reviewed and certainly has repercussions for the health of our captive fish. Polaçik et al have published interesting data with ramifications as to how we breed and incubate annual killifish. The big news in this issue is the paper from the Reznick lab which Jean Huber reviews. The contents of that paper goes to the heart of the question of just what a killifish is. The ...


Killi-Data News (Spring), Tyrone Genade 2018 Northwestern College, Iowa

Killi-Data News (Spring), Tyrone Genade

Killifish Research Review

This is the start of Killi-Data News’ second year. In this first issue of the year we have the usual review of research pub- lications as well as input from Martin Reichard on his lab’s Nothobranchius research. Martin is responding to my reviews of his lab’s work in the previous edition. I am serious about making sure the content in this newsletter is reliable but I erred in the previous edition and Martin has written extensively to correct my mistake in the section “Erratum”. This reply is welcomed and owed to readers. I must confess that I don ...


Killi-Data News (Winter), Tyrone Genade 2018 Northwestern College, Iowa

Killi-Data News (Winter), Tyrone Genade

Killifish Research Review

This is the fourth edition, and concluding issue of the first volume, of Killi-Data News and I am happy that it has been well received by readers. At 25 pages this issue is a bit thin- ner than the last but this is because we agreed to make the cut-off for submissions the 1 st of December so we could get this edition out by the New Year. This is an exciting edition full of new species descrip- tions and analyses that will keep taxonomists busy for years to come. Costa has given us two molecular phylogenies on Melanorivulus as ...


Killi-Data News (Spring), Tyrone Genade 2018 Northwestern College, Iowa

Killi-Data News (Spring), Tyrone Genade

Killifish Research Review

This is the start of Killi-Data News’ second year. In this first issue of the year we have the usual review of research pub- lications as well as input from Martin Reichard on his lab’s Nothobranchius research. Martin is responding to my reviews of his lab’s work in the previous edition. I am serious about making sure the content in this newsletter is reliable but I erred in the previous edition and Martin has written extensively to correct my mistake in the section “Erratum”. This reply is welcomed and owed to readers. I must confess that I don ...


Variable Utilization Of Shelf Break-Associated Habitats By Chick-Brooding Rhinoceros Auklets In The California Current System, Bradley Wilkinson, Jaime Jahncke, Pete Warzybok, Russell Bradley, Scott Shaffer 2018 San Jose State University

Variable Utilization Of Shelf Break-Associated Habitats By Chick-Brooding Rhinoceros Auklets In The California Current System, Bradley Wilkinson, Jaime Jahncke, Pete Warzybok, Russell Bradley, Scott Shaffer

Faculty Publications

Identifying frequently complex and dynamic spatial distributions of marine predators via the modeling of at-sea observations can be inherently challenging, especially when attempting to predict habitats of specific populations. Remotely-sensed tracking devices provide a viable alternative way to gather this information. We collected fine-scale spatiotemporal movement data for a small seabird, the rhinoceros auklet Cerorhinca monocerata, in the California Current System. Chick-brooding adults nesting on Southeast Farallon Island were outfitted with GPS loggers during the 2015 and 2016 breeding seasons (n = 15). Along with basic movement parameters, kernel density and residence time analyses were conducted to characterize at-sea distribution and ...


Variable Utilization Of Shelf Break-Associated Habitats By Chick-Brooding Rhinoceros Auklets In The California Current System, Bradley P. Wilkinson, Jaime Jahncke, Pete Warzybok, Russell Bradley, Scott A. Shaffer 2018 San Jose State University

Variable Utilization Of Shelf Break-Associated Habitats By Chick-Brooding Rhinoceros Auklets In The California Current System, Bradley P. Wilkinson, Jaime Jahncke, Pete Warzybok, Russell Bradley, Scott A. Shaffer

Scott A. Shaffer

Identifying frequently complex and dynamic spatial distributions of marine predators via the modeling of at-sea observations can be inherently challenging, especially when attempting to predict habitats of specific populations. Remotely-sensed tracking devices provide a viable alternative way to gather this information. We collected fine-scale spatiotemporal movement data for a small seabird, the rhinoceros auklet Cerorhinca monocerata, in the California Current System. Chick-brooding adults nesting on Southeast Farallon Island were outfitted with GPS loggers during the 2015 and 2016 breeding seasons (n = 15). Along with basic movement parameters, kernel density and residence time analyses were conducted to characterize at-sea distribution and ...


P-46 A Periodic Matrix Model Of Seabird Behavior And Population Dynamics, Mykhaylo M. Malakhov, Benjamin MacDonald, Shandelle M. Henson, J. M. Cushing 2018 Andrews University

P-46 A Periodic Matrix Model Of Seabird Behavior And Population Dynamics, Mykhaylo M. Malakhov, Benjamin Macdonald, Shandelle M. Henson, J. M. Cushing

Honors Scholars & Undergraduate Research Poster Symposium Programs

Rising sea surface temperatures (SSTs) in the Pacific Northwest lead to food resource reductions for surface-feeding seabirds, and have been correlated with several marked behavioral changes. Namely, higher SSTs are associated with increased egg cannibalism and egg-laying synchrony in the colony. We study the long-term effects of climate change on population dynamics and survival by considering a simplified, cross-season model that incorporates both of these behaviors in addition to density-dependent and environmental effects. We show that cannibalism can lead to backward bifurcations and strong Allee effects, allowing the population to survive at lower resource levels than would be possible otherwise.


The Controversy Of Sunscreen Ingredients: Examining The Relationship Between Oxybenzone And Butylparaben On Stylophorum Pistillata, Brian K. Lee, Natalia Corvalan, Jae Z. Saraum 2018 Northern Virginia Community College, Annandale Campus

The Controversy Of Sunscreen Ingredients: Examining The Relationship Between Oxybenzone And Butylparaben On Stylophorum Pistillata, Brian K. Lee, Natalia Corvalan, Jae Z. Saraum

Exigence

Abstract

The basis of this proposal is to understand the relationship between select UV filters and coral bleaching and provide a framework for additional research. Coral reefs are home to a diversity of marine life and are keystones to major coastal economies around the world. Oxybenzone and butylparaben are major ingredients found in sunscreen that induces coral bleaching to major coral reefs. To alleviate the negative effects, this proposal will attempt to better understand how oxybenzone and butylparaben facilitates coral bleaching and develop an effective and environmentally fair sunscreen. The research proposed will be funded by donors to cover research ...


Tidal Flat Ecology: An Experimental Approach To Species Interactions By K. Riess, John T. Tanacredi Ph.D. 2018 Molloy College

Tidal Flat Ecology: An Experimental Approach To Species Interactions By K. Riess, John T. Tanacredi Ph.D.

Dr. John T. Tanacredi

A periodic pause to intensely observe a singularly unique ecosystem sharpens one's awareness of this diverse world of ours, especially, as the author notes, if one observes a transitional ecosystem whose ecological treasures are hidden or maybe obscured by a tidal sediment's resemblance to a large, rotten cheese! "It smells, is slimy and sticky, is punched with holes and crowded with various worms." Sounds good to me! Reise's "pause" encompasses 10 years in which he investigated the Wadden Sea mudflats near the border between West Germany and Denmark. He uses this site to discuss the biotic and ...


Water Quality Characterization And Mathematical Modeling Of Dissolved Oxygen In The East And West Ponds, Jamaica Bay Wildlife Refuge, John Tanacredi Ph.D., D Roy, Krishnanand Maillacheruvu 2018 Molloy College

Water Quality Characterization And Mathematical Modeling Of Dissolved Oxygen In The East And West Ponds, Jamaica Bay Wildlife Refuge, John Tanacredi Ph.D., D Roy, Krishnanand Maillacheruvu

Dr. John T. Tanacredi

The current study was undertaken to characterize the East and West Ponds and develop a mathematical model of the effects of nutrient and BOD loading on dissolved oxygen (DO) concentrations in these ponds. The model predicted that both ponds will recover adequately given the average expected range of nutrient and BOD loading due to waste from surface runoff and migratory birds. The predicted dissolved oxygen levels in both ponds were greater than 5.0 mg/L, and were supported by DO levels in the field which were typically above 5.0 mg/L during the period of this study. The ...


Variability In Growth And Age Structure Among Populations Of Ribbed Mussels, Geukensia Demissa (Dillwyn) (Bivalvia: Mytilidae), In Jamacia Bay, New York (Gateway Nra), John Tanacredi Ph.D., David R. Franz 2018 Molloy College

Variability In Growth And Age Structure Among Populations Of Ribbed Mussels, Geukensia Demissa (Dillwyn) (Bivalvia: Mytilidae), In Jamacia Bay, New York (Gateway Nra), John Tanacredi Ph.D., David R. Franz

Dr. John T. Tanacredi

Growth rates, body weight, density and biomass of ribbed mussels, Geukensia demissa (Dillwyn), were determined at Spartina alterniflora marsh-flat sites in Jamaica Bay, New York (Lower Hudson Estuary). Cumulative growth and annual growth increments varied but rates were lower at sites within the central bay relative to peripheral sites. Local variability both in size at Ring-1 and size-specific annual growth rates probably account for the variability in cumulative length. No pattersn were noted in frequency distributions of shell size but congruence in age structure was observed among neighboring sites in some areas of the bay. Mussel densities were greater within ...


Questioning Ecosystem Assessment And Restoration Practices In A Major Urban Estuary: Perpetuating Myths Of Degradation In Spite Of Facts, John T. Tanacredi Ph.D., Martin P. Schreibman, Kevin McDonnell 2018 Molloy College

Questioning Ecosystem Assessment And Restoration Practices In A Major Urban Estuary: Perpetuating Myths Of Degradation In Spite Of Facts, John T. Tanacredi Ph.D., Martin P. Schreibman, Kevin Mcdonnell

Dr. John T. Tanacredi

The Jamaica Bay ecosystem is a dichotomy. It encompasses more than 12,000 acres of coastal estuarine marshes and an ecological diversity rivaling any coastal environment in the world. It is considerably altered, and is affected by a variety of ecological insults directly related to the fact that more than 14 million people live in its vicinity. Environmental protection institutions responded to the challenge of protecting the bay, surrounding wetlands and recreational benefits by addressing the increasing load of contaminants into the ecosystem. Billions of dollars have been spent during the past five decades on restoration attempts, including upgrading wastewater ...


Phytosociological Analysis Of Restored And Managed Grassland Habitat Within An Urban National Park, John T. Tanacredi Ph.D., Andrew M. Greller, Celestine Durando, Leslie F. Marcus, D. Siril A. Wijesundara, Michael D. Byer, Robert Cook 2018 Molloy College

Phytosociological Analysis Of Restored And Managed Grassland Habitat Within An Urban National Park, John T. Tanacredi Ph.D., Andrew M. Greller, Celestine Durando, Leslie F. Marcus, D. Siril A. Wijesundara, Michael D. Byer, Robert Cook

Dr. John T. Tanacredi

Floyd Bennett Field (FBF), 579 ha in extent, is a division of Gateway National Recreation Area. It is the site of a former airfield, constructed by filling salt marshes with dredged materials. Except for the portion known locally as the “North Forty,” all sections of FBF have been cut over to maintain low vegetation. A grassland management plan (GRAMP) for 165 ha was initiated in 1986, to maintain habitats for open-country birds. Over the next few years, encroaching woody vegetation was removed manually and mechanically from the management area. Since then, it has been maintained as a grassland and receives ...


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