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
University of Rhode Island

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:

(Date:3/3/2020)... , ... March 03, 2020 , ... Board-certified oral and ... ND. With over 16 years of training and experience, Dr. Noffze can successfully extract ... wisdom teeth as soon as possible is beneficial to the oral and overall health ...
(Date:3/2/2020)... ... March 02, 2020 , ... ... Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy ( Pittcon 2020 ), being ... the world’s leading annual conference and exposition on laboratory science, attracting attendees from ...
(Date:2/28/2020)... ... February 27, 2020 , ... Regen Suppliers is now offering the top FDA ... lift products are not only one of the only FDA Cleared options available, ... are increasing exponentially in popularity, as they represent an excellent nonoperative method of reducing ...
Breaking Biology News(10 mins):
(Date:3/3/2020)... ... March 03, 2020 , ... Ideal Implant Incorporated Founder and ... technology at the IMCAS Innovation Shark Tank 2020 in Paris, France in January. ... and aesthetic science industries that promise to revolutionize medical practices in their fields. ...
(Date:2/26/2020)... ... 25, 2020 , ... Continuing its leading research on human ... its safety assessment on the biotechnologically produced 3-Fucolsyllactose (3-FL) HMO. , 3-FL ... carbohydrates are indigestible and therefore function as a prebiotic by promoting early microbial ...
(Date:2/21/2020)... (PRWEB) , ... February 20, 2020 , ... ... ensuring supply chain transparency and reassuring consumers that what’s listed on an ingredient ... trademarked ingredients, Nutrition21 has introduced this solution with the adoption of CertainT, which ...
(Date:2/19/2020)... ... February 18, 2020 , ... Shoreline Biome, ... to the strain level, recently unveiled a novel DNA isolation product. , Shoreline ... isolation of high molecular weight (HMW) single-stranded DNA (ssDNA) in excess of 40 ...
Breaking Biology Technology:
Cached News: