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Articles 1 - 30 of 37
Full-Text Articles in Life Sciences
The Coastal Monitor: Vol. 10 No. 2, John Tanacredi Ph.D.
The Coastal Monitor: Vol. 10 No. 2, John Tanacredi Ph.D.
The Coastal Monitor
Stephen J. Gould’s prophetic piece, “The Golden Rule: A Proper Scale for Our Environmental Crisis”, noted that, “Patience enjoys a long pedigree of favor”, which he elaborated, “usually involves a deep understanding of the fundamental principle… rarely grasped in daily life – the effects of scale.” Scientists observe changes incessantly, in dimensions and time, from microscopic conditions of cellular biology to the inconceivable distances of galaxies and their influences on Earth.
The Coastal Monitor: Vol. 10 No. 1, John Tanacredi Ph.D.
The Coastal Monitor: Vol. 10 No. 1, John Tanacredi Ph.D.
The Coastal Monitor
New Year’s Day has always been, for me, a time to reflect and project into the near future. Nature’s influence on us all certainly tops my listing with several environmental concerns. For example, the frequency and intensity of hurricanes to Long Island. A decade has passed since Superstorm Sandy re-opened the “Old Inlet” on Long Island which now has mostly naturally closed. So, the new year immediately prompts me to assess the previous year’s Hurricane Ian, a Category 4 system, with winds exceeding 150 mph, which had considerable impact in Florida, and then proceeded north resulting in over 2 inches …
Diverse Secondary Metabolites Are Expressed In Particle-Associated And Free-Living Microorganisms Of The Permanently Anoxic Cariaco Basin, David Gellar-Mcgrath, Paraskevi Mara, Gordon T. Taylor, Elizabeth A. Suter, Virginia Edgcomb, Maria Pachiadaki
Diverse Secondary Metabolites Are Expressed In Particle-Associated And Free-Living Microorganisms Of The Permanently Anoxic Cariaco Basin, David Gellar-Mcgrath, Paraskevi Mara, Gordon T. Taylor, Elizabeth A. Suter, Virginia Edgcomb, Maria Pachiadaki
Faculty Works: Biology, Chemistry, and Environmental Studies
Secondary metabolites play essential roles in ecological interactions and nutrient acquisition, and are of interest for their potential uses in medicine and biotechnology. Genome mining for biosynthetic gene clusters (BGCs) can be used for the discovery of new compounds. Here, we use metagenomics and metatranscriptomics to analyze BGCs in free-living and particle-associated microbial communities through the stratified water column of the Cariaco Basin, Venezuela. We recovered 565 bacterial and archaeal metagenome-assembled genomes (MAGs) and identified 1154 diverse BGCs. We show that differences in water redox potential and microbial lifestyle (particle-associated vs. free-living) are associated with variations in the predicted composition …
The Kappa Opioid Receptor: Candidate Pharmacotherapeutic Target For Multiple Sclerosis, Brian Reed, Surya Dutta
The Kappa Opioid Receptor: Candidate Pharmacotherapeutic Target For Multiple Sclerosis, Brian Reed, Surya Dutta
Faculty Works: Biology, Chemistry, and Environmental Studies
Multiple sclerosis (MS) afflicts millions of people worldwide. While multiple therapeutics have recently been developed and approved as treatment agents, they are not 100% effective. Recent developments investigating the endogenous opioid system involvement in MS has revealed that agonists of the kappa opioid receptor (KOR) have beneficial effects in both animal models of MS (and demyelinating disorders more generally) as well as in vitro models of remyelination. Several groups have contributed to this development. We summarize here the findings of these published studies, with comparisons of the effects and discussion of similarities and differences. The effects of KOR agonists involve …
The Coastal Monitor: Vol. 9 No. 5, John Tanacredi Ph.D.
The Coastal Monitor: Vol. 9 No. 5, John Tanacredi Ph.D.
The Coastal Monitor
There are a multitude of lessons learned from the last 3 years of the Covid-19 pandemic. But one truly stands out ...the total lack of understanding of the basic chemistry associated with the nitrogen cycle, which in Suffolk County, NY, continues to be declared as the “evil-nitrogen”. The major source of nitrogen into the water body comes from the atmosphere which is the predominate constituent of the air we breathe79% nitrogen. Nitrogen compounds contribution to eutrophication in freshwater (ponds & lakes) systems is legendary and, the concentration of nitrogen in marine waters has always been known as a limiting agent …
Characterization Of Pyrrolidinyl-Hexahydro-Pyranopiperazines As A Novel Kappa Opioid Receptor Agonist Scaffold, Brian Reed, Michael Miller, Mayako Michino, Eduardo R. Butelman, Ariel Ben-Ezra, Philip Pikus, Michelle Morochnik, Yuli Kim, Amy Ripka, Joseph Vacca, Mary Jeanne Kreek
Characterization Of Pyrrolidinyl-Hexahydro-Pyranopiperazines As A Novel Kappa Opioid Receptor Agonist Scaffold, Brian Reed, Michael Miller, Mayako Michino, Eduardo R. Butelman, Ariel Ben-Ezra, Philip Pikus, Michelle Morochnik, Yuli Kim, Amy Ripka, Joseph Vacca, Mary Jeanne Kreek
Faculty Works: Biology, Chemistry, and Environmental Studies
The kappa agonist structure–activity relationship around the novel, pyrrolidinyl substituted pyranopiperazine scaffold was developed. More specifically, the dichloroPhenylAcetamide-Pyrrolidinyl-PyranoPiperazine (PAPPP) core A was the focus of our work. The modulation of kappa receptor potency/G-protein activation and arrestin recruitment with respect to changes of the piperazine R group in A was demonstrated. Reduced β2-arrestin recruitment and differential G-protein bias were observed for select analogues. To better understand the subtlety in receptor signaling, analogues were profiled as the resolved enantiomers. To determine in vivo target engagement, a subset of compounds was tested in mice for stimulation of serum prolactin, a neuroendocrine biomarker of …
Changes In Breast Cancer Care In New York During The Covid-19 Pandemic, Alexandra Fiderlein, Cheyenne Rosado, Noelle L. Cutter Ph.D.
Changes In Breast Cancer Care In New York During The Covid-19 Pandemic, Alexandra Fiderlein, Cheyenne Rosado, Noelle L. Cutter Ph.D.
Faculty Works: Biology, Chemistry, and Environmental Studies
Breast cancer is the second most common malignancy among women in the United States. As such, the COVID-19 pandemic has caused medical facilities to change their methods of operation since March of 2020, including changes in diagnosis and treatment plans. New York (NY) has an unusually high incidence of breast cancer. This study analyzed the effects of the COVID-19 pandemic on breast cancer care (BCC) in NY. Women in NY that were diagnosed with or in remission for breast cancer were asked to take an online, anonymous survey regarding their BCC experience. For patients in treatment, 26% of women wished …
The Coastal Monitor: Vol. 8 No. 4, John Tanacredi Ph.D.
The Coastal Monitor: Vol. 8 No. 4, John Tanacredi Ph.D.
The Coastal Monitor
The original five acre of land portion of the historic Blue Points Oyster Company is located at the southern end of Atlantic Ave in West Sayville, Islip Town, Suffolk County, New York on the shore of Great South Bay. The Center for Environmental Research and Coastal Oceans Monitoring (CERCOM) is the science field station serving Molloy College’s BCES programs in Earth & Environmental Sciences and Biology. Our mission is to provide unique hands-on educational opportunities in the physical and life sciences, in collaboration with a host of Federal, State, and local and NGO groups, to bolster students’ career path. Great …
Eukaryotic Parasites Are Integral To A Productive Microbial Food Web In Oxygen-Depleted Waters, Elizabeth A. Suter, Maria Pachladaki, Gordon T. Taylor, Virginia P. Edgcomb
Eukaryotic Parasites Are Integral To A Productive Microbial Food Web In Oxygen-Depleted Waters, Elizabeth A. Suter, Maria Pachladaki, Gordon T. Taylor, Virginia P. Edgcomb
Faculty Works: Biology, Chemistry, and Environmental Studies
Oxygen-depleted water columns (ODWCs) host a diverse community of eukaryotic protists that change dramatically in composition over the oxic-anoxic gradient. In the permanently anoxic Cariaco Basin, peaks in eukaryotic diversity occurred in layers where dark microbial activity (chemoautotrophy and heterotrophy) were highest, suggesting a link between prokaryotic activity and trophic associations with protists. Using 18S rRNA gene sequencing, parasites and especially the obligate parasitic clade, Syndiniales, appear to be particularly abundant, suggesting parasitism is an important, but overlooked interaction in ODWC food webs. Syndiniales were also associated with certain prokaryotic groups that are often found in ODWCs, including Marinimicrobia and …
The Bioinformatics Virtual Coordination Network: An Open-Source And Interactive Learning Environment, Benjamin J. Tully, Joy Buongiorno, Ashley B. Cohen, Jacob A. Cram, Arkadiy I. Garber, Sarah K. Hu, Arianna I. Krinos, Philip T. Leftwich, Alexis J. Marshall, Ella T. Sieradzki, Daan R. Speth, Elizabeth A. Suter, Christopher B. Trivedi, Luis E. Valentin-Alvarado, Jake L. Weissman, Bvcn Instructor Consortium
The Bioinformatics Virtual Coordination Network: An Open-Source And Interactive Learning Environment, Benjamin J. Tully, Joy Buongiorno, Ashley B. Cohen, Jacob A. Cram, Arkadiy I. Garber, Sarah K. Hu, Arianna I. Krinos, Philip T. Leftwich, Alexis J. Marshall, Ella T. Sieradzki, Daan R. Speth, Elizabeth A. Suter, Christopher B. Trivedi, Luis E. Valentin-Alvarado, Jake L. Weissman, Bvcn Instructor Consortium
Faculty Works: Biology, Chemistry, and Environmental Studies
Lockdowns and “stay-at-home” orders, starting in March 2020, shuttered bench and field dependent research across the world as a consequence of the global COVID-19 pandemic. The pandemic continues to have an impact on research progress and career development, especially for graduate students and early career researchers, as strict social distance limitations stifle ongoing research and impede in-person educational programs. The goal of the Bioinformatics Virtual Coordination Network (BVCN) was to reduce some of these impacts by helping research biologists learn new skills and initiate computational projects as alternative ways to carry out their research. The BVCN was founded in April …
The Coastal Monitor: Vol. 7 No. 3, John Tanacredi Ph.D.
The Coastal Monitor: Vol. 7 No. 3, John Tanacredi Ph.D.
The Coastal Monitor
Where has all the pollution gone? No hazardous toxic algal blooms? Incredible summer estuarine water quality! No fish kills. Banner years in recreational fisheries for Stripers and Blues and incredible numbers of Humpback whales! No going to restaurants, so greater at home use of water and septic systems! Since March 2020, drier years than most, thus reducing runoff with fertilizers and organic pesticides, resulting in reduced water contamination. So maybe, just maybe, this COVID- 19 period which has altered our collective lives forever, has also resulted in a grand experiment on what has been hiding in plain sight? That is, …
Salty Sensors, Fresh Ideas: The Use Of Molecular And Imaging Sensors In Understanding Plankton Dynamics Across Marine And Freshwater Ecosystems, Trisha Lyn Spanbauer, Christian Briseno-Avena, Kathleen Johnson Pitz, Elizabeth A. Suter
Salty Sensors, Fresh Ideas: The Use Of Molecular And Imaging Sensors In Understanding Plankton Dynamics Across Marine And Freshwater Ecosystems, Trisha Lyn Spanbauer, Christian Briseno-Avena, Kathleen Johnson Pitz, Elizabeth A. Suter
Faculty Works: Biology, Chemistry, and Environmental Studies
Understanding plankton dynamics in marine ecosystems has been advanced using in situ molecular and imaging instrumentation. A range of research objectives have been addressed through high‐resolution autonomous sampling, from food web characterization to harmful algal bloom dynamics. When used together, molecular and imaging sensors can cover the full‐size range, genetic identity, and life stages of plankton. Here, we briefly review a selection of in situ instrumentation developed for the collection of molecular and imaging information on plankton communities in marine ecosystems. In addition, we interviewed a selection of instrumentation developers to determine if the transfer of sensor technology from marine …
The Coastal Monitor Fall 2019, John Tanacredi Ph.D.
The Coastal Monitor Fall 2019, John Tanacredi Ph.D.
The Coastal Monitor
In 2013 I had the distinct pleasure to be offered the opportunity to become a part of the Molloy College family. President Dr. Drew Bogner believed that CERCOM would be an important part of building an exciting program for students in Earth and Environmental Science at Molloy. Dr. Bogner was able to envision how the CERCOM Field Station, would enrich Molloy College science students, given its decades of earth, environmental, and marine sciences research. He had the foresight to understand that the experiences at CERCOM would help foster a vast array of international academic collaborations which now include 14 countries. …
Hidden In Plain Sight: The Importance Of Cryptic Interactions In Marine Plankton, Nicole C. Millette, Julia Grosse, Winifred M. Johnson, Michelle J. Jungbluth, Elizabeth A. Suter
Hidden In Plain Sight: The Importance Of Cryptic Interactions In Marine Plankton, Nicole C. Millette, Julia Grosse, Winifred M. Johnson, Michelle J. Jungbluth, Elizabeth A. Suter
Faculty Works: Biology, Chemistry, and Environmental Studies
Here, we present a range of interactions, which we term “cryptic interactions.” These are interactions that occur throughout the marine planktonic foodweb but are currently largely overlooked by established methods, which mean large-scale data collection for these interactions is limited. Despite this, current evidence suggests some of these interactions may have perceptible impacts on foodweb dynamics and model results. Incorporation of cryptic interactions into models is especially important for those interactions involving the transport of nutrients or energy. Our aim is to highlight a range of cryptic interactions across the plankton foodweb, where they exist, and models that have taken …
The Coastal Monitor: Fall 2017/ Spring 2018, John T. Tanacredi Ph.D.
The Coastal Monitor: Fall 2017/ Spring 2018, John T. Tanacredi Ph.D.
The Coastal Monitor
As I sat there in the Members Lounge at the Explorers Club; the world center for exploration, getting ready for our first Spring Saturday Science for Students @the EC lecture, I was putting together some notes on the accomplishments of our science students and CERCOM over the last few months since our last newsletter. Our visit to the Galapagos, a spectacular academic experience for our Molloy College students was at the top of my list! This was certainly not an epiphany but as I accumulated the items on this list, I was impressed not only with what we have conducted …
The Coastal Monitor: Vol 2. No 1., John Tanacredi Ph.D.
The Coastal Monitor: Vol 2. No 1., John Tanacredi Ph.D.
The Coastal Monitor
There is something enchanting and vibrant about viewing the coast. Every day at CERCOM we are welcomed by either a vivid sunrise, a view of the barrier island Fire Island and a blending of the sky across the horizon, ultimately flooding the Great South Bay with either clouds or sunshine that reveals the Bay’s surface as either shimmering with sunlight, or an integration of sky and water as an endless ocean. I don’t normally wax poetic but the varying sights along the near shore ocean and this embayment beckon our scientific inquisitiveness. What’s below the surface water? How do animals …
The Coastal Monitor: Vol. 1, No. 3, John Tanacredi Ph.D.
The Coastal Monitor: Vol. 1, No. 3, John Tanacredi Ph.D.
The Coastal Monitor
Each fall I teach a course in “Ecology” and in the spring, “Marine Biology”; two seminal courses absolutely necessary and required to complete a BS Degree in Earth and Environmental Studies at Molloy College. To a large extent I draw on my 48 years of life experiences; flight meteorologist, “Hurricane Hunter” in the US Navy (1968-1970), environmental impact analyst with the US Coast Guard’s Bridge Administration on Governors Island (1974-1978); Coastal Barrier Parks Coordinator and Research Ecologist with the National Park Service (1978-2001); Research Associate in the Invertebrate Zoology Department at the American Museum of Natural History(1982-2000); Chairman Department of …
The Coastal Monitor: Vol. 1, No. 2, John Tanacredi Ph.D.
The Coastal Monitor: Vol. 1, No. 2, John Tanacredi Ph.D.
The Coastal Monitor
At a recent event a colleague asked me, “So what do you do at CERCOM?” My immediate response was the “M” word fundamentally! After 45 years involved in environmental sciences, monitoring remains the most important and critical aspect of not only any field station in support of the academics conducted, but the seminal responsibility to be able, as a scientist, to reveal trends in the massive volume of data collected through routine monitoring exercises. It is extremely rare for a single data point, or even a single season of data, no matter how accurate the individual data point is, to …
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
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
Faculty Works: CERCOM
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 treatment …
The Coastal Monitor: Vol. 1, No. 1, John Tanacredi Ph.D.
The Coastal Monitor: Vol. 1, No. 1, John Tanacredi Ph.D.
The Coastal Monitor
The Center for Environmental Research and Coastal Oceans Monitoring (CERCOM) is a scientific coastal research center and field station dedicated to exploring our global coastal environments and near-shore oceans. CERCOM is the field station support facility for all sciences at Molloy College and services the degree programs of Biology, Chemistry, and Environmental Studies, with special attention to a B.S. degree in Earth and Environmental Studies. Located at the West Sayville Boat Basin on the Great South Bay, CERCOM is a 2,500 sq. ft. field station estuarine/ marine science laboratory where environmental monitoring and analysis is conducted 365 days a year.
Particle Association Of Enterococcus And Total Bacteria In The Lower Hudson River Estuary, Usa, Elizabeth A. Suter, Andrew R. Juhl, Gegory D. O'Mullan
Particle Association Of Enterococcus And Total Bacteria In The Lower Hudson River Estuary, Usa, Elizabeth A. Suter, Andrew R. Juhl, Gegory D. O'Mullan
Faculty Works: Biology, Chemistry, and Environmental Studies
Bacterial particle association has important consequences for water-quality monitoring and modeling. Parti-cle association can change vertical and horizontal transport of bacterial cells, as well as patterns of persis-tence and production. In this study, the abundance and particle association of total bacteria and the fe-cal-indicator, Enterococcus, were quantified between June and October 2008 in the lower Hudson River Es-tuary (HRE). Twelve sites were sampled, including mid-channel, near shore, and tributary habitats, plus a sewage outfall. Total bacterial cell counts averaged 9.2 × 109 ± 6.4 × 109 cell·l–1 (1 standard deviation), com-parable to previous sampling in the HRE. Unlike earlier studies, …
Limulus In The Limelight: Exploring An Ancient Species, John Tanacredi Ph.D.
Limulus In The Limelight: Exploring An Ancient Species, John Tanacredi Ph.D.
Faculty Works: CERCOM
In an era when sports numbers shatter historical ceilings (especially in baseball) and fall by the wayside like fall leaves, a most enduring record of life continues to crawl along emerging from the sea early each spring pronouncing their incredible "record" of existences... over 350 million years. Now there is a number that even the rarified air of baseball salaries can admire. Yet, today the remarkable sea creature which endured over 100 million years of dramatically changing earth history prior to the existence of the dinosaurs, and which is comprised of only four species globally, is being tested for its …
Habitat Use Of Sympatrically Nesting Fish Crows And American Crows, Brook Lauro, John Tanacredi Ph.D.
Habitat Use Of Sympatrically Nesting Fish Crows And American Crows, Brook Lauro, John Tanacredi Ph.D.
Faculty Works: CERCOM
We examined habitat use of sympatric Fish Crows (Corvus ossifragus) and American Crows (C. brachyrhynchos) nesting in the vicinity of waterbird breeding locations at the Rockaway Peninsula, New York City. Fish Crows nested significantly more often at natural habitats, including coastal dunes and salt marsh islands; American Crows nested significantly more often at residential and recreational areas. In regard to potential foraging areas, Fish Crows nested closer to waterbird colonies and to the water's edge while American Crows nested closer to a garbage source and to lawns. Fish Crows nested significantly more often in deciduous trees …
Water Quality Characterization And Mathematical Modeling Of Dissolved Oxygen In The East And West Ponds, Jamaica Bay Wildlife Refuge, Krishnanand Maillacheruvu, D Roy, John Tanacredi Ph.D.
Water Quality Characterization And Mathematical Modeling Of Dissolved Oxygen In The East And West Ponds, Jamaica Bay Wildlife Refuge, Krishnanand Maillacheruvu, D Roy, John Tanacredi Ph.D.
Faculty Works: CERCOM
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 model predicted a steady-state …
An Examination Of Predatory Pressures On Piping Plovers Nesting At Breezy Point, New York, Brook Lauro, John Tanacredi Ph.D.
An Examination Of Predatory Pressures On Piping Plovers Nesting At Breezy Point, New York, Brook Lauro, John Tanacredi Ph.D.
Faculty Works: CERCOM
This study examines predatory threats to Piping Plovers (Charadrius melodus) nesting at Breezy Point, Gateway National Recreation Area, New York. Several methods used include: 1) an evaluation of reproductive success data with documentation of predation to eggs and chicks, 2) predator surveys, and 3) an artificial nest study. The range of breeding pairs nesting from 1988-1996 was 11-19, with an average of 15.8 (SE ± 0.79) pairs/season. The average number of eggs hatched and chicks fledged per year for pairs was 2.2 ± 0.23 and 0.8 ± 0.16 respectively. Reasons for egg losses often went undetected (68%) but …
Managing Birds And Controlling Aircraft In The Kennedy Airport–Jamaica Bay Wildlife Refuge Complex: The Need For Hard Data And Soft Opinions, Kevin Brown, R. Michael Erwin, Milo E. Richmond, P A. Buckley, John Tanacredi Ph.D., Dave Avrin
Managing Birds And Controlling Aircraft In The Kennedy Airport–Jamaica Bay Wildlife Refuge Complex: The Need For Hard Data And Soft Opinions, Kevin Brown, R. Michael Erwin, Milo E. Richmond, P A. Buckley, John Tanacredi Ph.D., Dave Avrin
Faculty Works: CERCOM
During the 1980s, the exponential growth of laughing gull (Larus atricilla) colonies, from 15 to about 7600 nests in 1990, in the Jamaica Bay Wildlife Refuge and a correlated increase in the bird-strike rate at nearby John F. Kennedy International Airport (New York City) led to a controversy between wildlife and airport managers over the elimination of the colonies. In this paper, we review data to evaluate if: (1) the colonies have increased the level of risk to the flying public; (2) on-colony population control would reduce the presence of gulls, and subsequently bird strikes, at the airport; …
Phytosociological Analysis Of Restored And Managed Grassland Habitat Within An Urban National Park, Andrew M. Greller, Celestine Durando, Leslie F. Marcus, D. Siril A. Wijesundara, Michael D. Byer, Robert Cook, John T. Tanacredi Ph.D.
Phytosociological Analysis Of Restored And Managed Grassland Habitat Within An Urban National Park, Andrew M. Greller, Celestine Durando, Leslie F. Marcus, D. Siril A. Wijesundara, Michael D. Byer, Robert Cook, John T. Tanacredi Ph.D.
Faculty Works: CERCOM
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 …
Changes In Reproductive Morphology And Physiology Observed In The Amphipod Crustacean, Melita Nitida Smith, Maintained In The Laboratory On Polluted Estuarine Sediments, John T. Tanacredi Ph.D., B. Borowsky, P. Aitken-Ander
Changes In Reproductive Morphology And Physiology Observed In The Amphipod Crustacean, Melita Nitida Smith, Maintained In The Laboratory On Polluted Estuarine Sediments, John T. Tanacredi Ph.D., B. Borowsky, P. Aitken-Ander
Faculty Works: CERCOM
An earlier study showed that the amphipod crustacean Melita nitida Smith maintained on sediments dosed with waste crankcase oil developed physiological and morphological abnormalities. Most notably, mature females developed abnormal setae along the edges of their brood plates. The present study was conducted to determine whether similar abnormalities might be induced in animals maintained on polluted field sediments containing petroleum by-products among other toxic substances. In the laboratory, heterosexual pairs were maintained on three sediments taken from Jamaica Bay (New York) plus one control sediment and one toxic substratum (Ulva lactuca (L.) thalli). The results mirrored the results of …
Rare And Endangered Plants At Gateway National Recreation Area: A Case For Protection Of Urban Natural Areas, Richard Stalter, Michael D. Byer, John T. Tanacredi Ph.D.
Rare And Endangered Plants At Gateway National Recreation Area: A Case For Protection Of Urban Natural Areas, Richard Stalter, Michael D. Byer, John T. Tanacredi Ph.D.
Faculty Works: CERCOM
The diversity of native plant species in urban environments is usually overlooked when biodiversity levels are considered. Inventories of native plants reveal many to be rare species surviving the harsh conditions encountered in urban ecosystems. Knowledge of their existence and an inventory of their distribution will assist in maintaining these populations. Protection strategies for rare plant species are outlined for urban National Parks.
Liver Lesions In Winter Flounder (Pseudopleuronectes Americanus) From Jamaica Bay, New York: Indications Of Environmental Degradation, Thomas P. Augspurger, Roger L. Herman, Jeff S. Hatfield, John T. Tanacredi Ph.D.
Liver Lesions In Winter Flounder (Pseudopleuronectes Americanus) From Jamaica Bay, New York: Indications Of Environmental Degradation, Thomas P. Augspurger, Roger L. Herman, Jeff S. Hatfield, John T. Tanacredi Ph.D.
Faculty Works: CERCOM
Liver sections of winter flounder (Pseudopleuronectes americanus) collected from Jamaica Bay and Shinnecock Bay, New York, in 1989, were examined microscopically to determine the pervasiveness of liver lesions observed previously in Jamaica Bay winter flounder. Neoplastic lesions were not detected in fish from Jamaica Bay or the Shinnecock Bay reference site. Twenty-two percent of Jamaica Bay winter flounder examined (n=103) had unusual vacuolization of hepatocytes and biliary pre-ductal and ductal cells (referred to hereafter as the vacuolated cell lesion). The lesion, identical to that found in 25% of Jamaica Bay winter flounder examined in 1988, has previously been …