1. The Chesapeake Bay is one of the largest estuaries in the world, running from New York to Virginia with an average depth of 21 feet and a deeper central channel.
2. Freshwater flows into the Bay from its large watershed are highly variable seasonally and annually, carrying nitrogen and phosphorus nutrients that fuel phytoplankton growth.
3. This phytoplankton growth depletes oxygen in the water when the algae dies off, leading to hypoxic and anoxic conditions in the deeper waters especially in the summer, harming aquatic life.
Ribbed Mussel ability to remove Nitrogen from water bodies.ecowatchers
Professor Chester Zarnock explains recently completed and published study showing the benefits of ribbed mussels in a salt marsh including their denitrification potential
RMC Water and Environment is a Walnut Creek, California-based firm that provides sustainable and regulation-compliant engineering solutions for water-related projects. One area that RMC Water and Environment focuses on is water recycling.
All of our children—native-born and immigrants alike—are receiving a poorer education as a result of the federal government passing its immigration law enforcement failures on to the states. The implications for the coming generations of workers, our future economy, and our long-term
competitiveness in the world cannot be ignored.
Ribbed Mussel ability to remove Nitrogen from water bodies.ecowatchers
Professor Chester Zarnock explains recently completed and published study showing the benefits of ribbed mussels in a salt marsh including their denitrification potential
RMC Water and Environment is a Walnut Creek, California-based firm that provides sustainable and regulation-compliant engineering solutions for water-related projects. One area that RMC Water and Environment focuses on is water recycling.
All of our children—native-born and immigrants alike—are receiving a poorer education as a result of the federal government passing its immigration law enforcement failures on to the states. The implications for the coming generations of workers, our future economy, and our long-term
competitiveness in the world cannot be ignored.
Estuaries Ecosystem : Where River Meets Ocean
Everything about estuary ecosystem has been elaborated including Introduction, Types, Physical and Chemical Characteristics , Biota, Marsh Lands, Mangrove Forests, Food Web, Threats, Conservation, Restoration etc....
Lakes are helpful in controlling weather and local climate. Lakes are helpful for creating irrigation facilities and recreation. In some places, lakes are good sources for water supply for drinking. Every lake, is unique in terms of its size, morphometry, water availability, water chemistry, physics, hydrology and biology. There are several type, kinds and categories of lakes in the world.
An estuary is a semi-enclosed coastal body of water which has a free connection with the open sea and within which sea water mixes with fresh water. This module highlights the details of estuaries as one of the productive coastal ecosystems.
Oceanography is the science that studies the oceans along with marine organisms and ecosystem dynamics, ocean currents and waves, plate tectonics and the geology of the sea floor, and the chemical substances and physical properties of the world oceans.
A review of the growth of the Israel Genealogy Research Association Database Collection for the last 12 months. Our collection is now passed the 3 million mark and still growing. See which archives have contributed the most. See the different types of records we have, and which years have had records added. You can also see what we have for the future.
A workshop hosted by the South African Journal of Science aimed at postgraduate students and early career researchers with little or no experience in writing and publishing journal articles.
Normal Labour/ Stages of Labour/ Mechanism of LabourWasim Ak
Normal labor is also termed spontaneous labor, defined as the natural physiological process through which the fetus, placenta, and membranes are expelled from the uterus through the birth canal at term (37 to 42 weeks
Executive Directors Chat Leveraging AI for Diversity, Equity, and InclusionTechSoup
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
Strategies for Effective Upskilling is a presentation by Chinwendu Peace in a Your Skill Boost Masterclass organisation by the Excellence Foundation for South Sudan on 08th and 09th June 2024 from 1 PM to 3 PM on each day.
June 3, 2024 Anti-Semitism Letter Sent to MIT President Kornbluth and MIT Cor...Levi Shapiro
Letter from the Congress of the United States regarding Anti-Semitism sent June 3rd to MIT President Sally Kornbluth, MIT Corp Chair, Mark Gorenberg
Dear Dr. Kornbluth and Mr. Gorenberg,
The US House of Representatives is deeply concerned by ongoing and pervasive acts of antisemitic
harassment and intimidation at the Massachusetts Institute of Technology (MIT). Failing to act decisively to ensure a safe learning environment for all students would be a grave dereliction of your responsibilities as President of MIT and Chair of the MIT Corporation.
This Congress will not stand idly by and allow an environment hostile to Jewish students to persist. The House believes that your institution is in violation of Title VI of the Civil Rights Act, and the inability or
unwillingness to rectify this violation through action requires accountability.
Postsecondary education is a unique opportunity for students to learn and have their ideas and beliefs challenged. However, universities receiving hundreds of millions of federal funds annually have denied
students that opportunity and have been hijacked to become venues for the promotion of terrorism, antisemitic harassment and intimidation, unlawful encampments, and in some cases, assaults and riots.
The House of Representatives will not countenance the use of federal funds to indoctrinate students into hateful, antisemitic, anti-American supporters of terrorism. Investigations into campus antisemitism by the Committee on Education and the Workforce and the Committee on Ways and Means have been expanded into a Congress-wide probe across all relevant jurisdictions to address this national crisis. The undersigned Committees will conduct oversight into the use of federal funds at MIT and its learning environment under authorities granted to each Committee.
• The Committee on Education and the Workforce has been investigating your institution since December 7, 2023. The Committee has broad jurisdiction over postsecondary education, including its compliance with Title VI of the Civil Rights Act, campus safety concerns over disruptions to the learning environment, and the awarding of federal student aid under the Higher Education Act.
• The Committee on Oversight and Accountability is investigating the sources of funding and other support flowing to groups espousing pro-Hamas propaganda and engaged in antisemitic harassment and intimidation of students. The Committee on Oversight and Accountability is the principal oversight committee of the US House of Representatives and has broad authority to investigate “any matter” at “any time” under House Rule X.
• The Committee on Ways and Means has been investigating several universities since November 15, 2023, when the Committee held a hearing entitled From Ivory Towers to Dark Corners: Investigating the Nexus Between Antisemitism, Tax-Exempt Universities, and Terror Financing. The Committee followed the hearing with letters to those institutions on January 10, 202
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
MATATAG CURRICULUM: ASSESSING THE READINESS OF ELEM. PUBLIC SCHOOL TEACHERS I...NelTorrente
In this research, it concludes that while the readiness of teachers in Caloocan City to implement the MATATAG Curriculum is generally positive, targeted efforts in professional development, resource distribution, support networks, and comprehensive preparation can address the existing gaps and ensure successful curriculum implementation.
This presentation was provided by Steph Pollock of The American Psychological Association’s Journals Program, and Damita Snow, of The American Society of Civil Engineers (ASCE), for the initial session of NISO's 2024 Training Series "DEIA in the Scholarly Landscape." Session One: 'Setting Expectations: a DEIA Primer,' was held June 6, 2024.
How to Build a Module in Odoo 17 Using the Scaffold MethodCeline George
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
it describes the bony anatomy including the femoral head , acetabulum, labrum . also discusses the capsule , ligaments . muscle that act on the hip joint and the range of motion are outlined. factors affecting hip joint stability and weight transmission through the joint are summarized.
2. The Chesapeake is one of the largest estuaries on the planet 200 miles 2
3. The Chesapeake has an average depth of ~21 feet A narrow deep channel runs north/south down the Bay The Chesapeake’s deep channel corresponds to the original Susquehanna River ~15,000 years ago before the continental glaciers melted and sea level rose. This channel is now ~50-120 feet deep. ~100 feet ~4-20 miles West East Chesapeake profile looking northward (note difference in horizontal and vertical scales) 3
4. The Chesapeake watershed extends northward into New York state, and westward into West Virginia 4
5. Fresh water flow into the Chesapeake is variable— both seasonally and annually Mar-06 Mar-07 Mar-08 5
6. Nitrogen- and Phosphorous-based nutrients from the watershed flow into the Chesapeake where they drive phytoplankton growth that depletes the Bay’s oxygen 6
7. Because Sea Water Contains Dissolved Salt, it is ~3% Heavier than Fresh Water 1 liter fresh water weighs 997 grams 1 liter sea water weighs ~1023 grams At room temperature 7
8. Warm water is less dense than cold water 1 liter warm sea water (30 o C) weighs 1021 grams 1 liter cold sea water (5 o C) weighs 1027 grams 8
9. Fresh water flowing into an estuary creates a gradient with sea water Seaward flow of lighter, fresher water from the watershed Estuarine flow of denser, saltier water River Ocean 9
12. Salinity Maps from Spring and Fall show how the Bay responds to variation in fresh water inflow Chesapeake Bay Program High river flows Low river flows Havre de Grace Norfolk 12
13. During the summer, a pycnocline forms in the central Chesapeake Pycnocline : A sharp change in density (due to salinity and temperature changes) The Chesapeake’s summer pycnocline is typically 20-40 feet below the surface, i.e., largely but not exclusively associated with the deep trench Deg C Temperature Salinity Havre de Grace Norfolk Chesapeake Bay Program 13
14. Phytoplankton can grow vigorously in estuaries where they comprise the base of the food chain Phytoplankton—free- floating microscopic organisms utilizing photosynthesis for energy Dinoflagellates Diatoms Cyanobacteria = Blue-green algae etc Zooplankton Fish Crabs Phytoplankton N- and P-based nutrients from watershed Oysters Jellyfish Small fish 14
15. Chlorophyll a monitoring shows how phytoplankton can grow and die quickly Chesapeake Bay Program Feb Mar Apr 15
16. Phytoplankton growth is usually limited by either nitrogen- and phosphorous-based nutrients +P +N+P +N +P +N+P Day 0 Day 4 +N 16
18. The critical nutrients for phytoplankton growth are nitrogen and phosphorous compounds Chesapeake Bay Program 18
19. Nutrients from watershed Zooplankton Oysters Jellyfish Small fish Fish Crabs Phytoplankton Zooplankton Fish Crabs Phytoplankton High nutrient loads foster the rapid growth of phytoplankton, but zooplankton cannot increase their numbers rapidly enough to expand the whole food pyramid Oysters Jellyfish Small fish 19
20. Nitrogen- and Phosphorous-based nutrients from the watershed flow into the Chesapeake where they drive phytoplankton growth that depletes the Bay’s oxygen 20
22. 2005 Hypoxia/Anoxia Develops in the deep Chesapeake in Summer Annapolis Potomac Chesapeake Bay Program 22 March April May June July August Sept October Nov
31. DDT wiped out osprey populations, but banning it led to recovery 31
Editor's Notes
Most of the Chesapeake is fairly shallow—its average depth is only 21 feet. However, there is a *deep channel corresponding to the former Susquehanna River bed, that runs down the length of the Bay, more-or-less in the middle. This diagram depicts a cross-section of the Chesapeake looking northward. It is important to emphasize that the diagram is not to scale—the horizontal dimension is actually much, much bigger than what is illustrated here relative to the 100 foot depth scale. In understanding this shape, it helps to think about how the Bay was formed. Geologically the Chesapeake is only ~10,000 years old. It was created at the end of the last glacial period—when sea level rose as a result of the melting continental glaciers. What had been the Susquehanna River flood plain then became permanently flooded and is now the broad shallow sections of the Bay to the east and west of the deep channel. The former route of flowing Susquehanna River then became the Bay’s deep channel. This kind of explanation also applies to the major Chesapeake tidal tributaries like the Potomac. The overall shallow water dominating the Chesapeake sets up its rich biological life, because the microscopic plants called phytoplankton form the base of the estuary’s food chain. Phytoplankton generate energy by photosynthesis, and in a shallow estuary they have better access to sunlight than in deeper estuaries.