HOME >> BIOLOGY >> NEWS
URI biological oceanographers test shallow marine systems' response to increased nutrients

Most of the efforts to determine how estuaries respond to nutrient enrichment have been confined to relatively deeper and/or muddier river mouth estuaries. However, much of the Atlantic coast from Cape Cod to Cape Fear, as well as parts of the Florida coast and almost all of the Gulf Coast is characterized by a different type of coastal system, called by various names, including lagoon, inland bay, and salt pond. These more complex shallow systems are now facing increasing nutrient enrichment from agriculture and suburban housing development with associated on-site sewage disposal systems and ground water nitrogen enrichment.

A team of scientists at the URI Graduate School of Oceanography (GSO) have focused their research on these very shallow lagoon type estuaries to determine if there are predictable patterns of response to nutrient enrichment in these more complex systems. The research team includes biological oceanographer Dr. Scott Nixon, research associates Betty Buckley and Steven Granger, and recent Ph.D. graduate Joanne Bintz.

According to a recent article in the journal Human and Ecological Risk Assessment, the scientific team summarized data from 30 systems with mean depths ranging from 1-12 feet and water residence times from .3-100 days. In addition the team designed and built a coastal lagoon mesocosm facility where they replicated and controlled nutrient inputs, mixing rates, and water resident time. Fed by water from Narragansett Bay, the mesocosms had a variety of typical coastal lagoon organisms added to them, in addition to the plankton that enter with the bay water and the animals contained in the sediment.

While the scientists observed some changes with regard to phytoplankton blooms and the increase of epiphytic algae growing on seagrass leaves, they were most concerned with the impact of nutrient enrichment on the survival and health of eelgrass. The mesocosm experiments showed that the epiphytes appeared to have little or no
'"/>

Contact: Lisa Cugini
lcugini@gso.uri.edu
401-874-6642
University of Rhode Island
9-Jan-2003


Page: 1 2

Related biology news :

1. Analysis of biological clock may lead to greater understanding of human disease
2. Columbia, Stony Brook, Guidant to develop biological pacemaker based on gene & cell therapies
3. Gold quantum dots have applications in biological labeling, nanoscale optics
4. Testing the fitness of biological clocks
5. Spanish scientists develop powerful tool for exploration and integration of biological information
6. Study of proteins offers insights into organization of biological networks
7. Mutant biological machine makes proteins but cant let go
8. The biological clock: What really makes us tick
9. CIESIN receives grant to establish government biological information site
10. New device can help defend against novel biological agents
11. Research reveals brain has biological mechanism to block unwanted memories

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:8/26/2020)... ... August 25, 2020 , ... Mitotech ... partnership with Essex Bio-Technology, a bio-pharmaceutical company specializing in Ophthalmology and Dermatology, ... of SkQ1 ophthalmic solution in patients with moderate to severe Dry Eye ...
(Date:8/21/2020)... ... August 18, 2020 , ... Sentien Biotechnologies, Inc., a clinical-stage ... Food and Drug Administration (FDA) has approved the company’s Investigational New Drug (IND) ... severe COVID-19. Approval of this IND allows Sentien to initiate a Phase 1/2 ...
(Date:8/12/2020)... ... August 11, 2020 , ... ... Princeton, NJ, have entered into license agreements with Housey Pharma’s HMI subsidiary to ... Roche and J&J have annual Research and Development spending in excess of US ...
Breaking Biology News(10 mins):
(Date:7/10/2020)... ... July 09, 2020 , ... Sentien Biotechnologies, Inc., ... hiring of Allen R. Nissenson, M.D., F.A.C.P., as its Chief Medical Officer. ... Sentien’s lead product, SBI-101. Dr. Nissenson serves as an Emeritus Professor of ...
(Date:7/1/2020)... ... June 29, 2020 , ... MedShift , a leading ... despite many obstacles created as a result of COVID-19. As a provider at ... medical practices and medical manufacturers by expanding access to device offerings, technology services, ...
(Date:6/28/2020)... ... June 25, 2020 , ... The Indoor Lab, a leading provider of sensor ... of all types to ensure cleanliness, distancing and occupancy with its patent pending WipeAway™ ... enabled business will provide a health performance index system that scores all aspects of ...
(Date:6/28/2020)... ... June 26, 2020 , ... ... security solutions providers, today announced its strong opposition to the recently introduced bicameral ... impose a blanket ban on most federal use of nearly all biometric and ...
Breaking Biology Technology:
Cached News: