Aquaculture and Mariculture

The National Geographic Magazine for June, 2014, has an excellent article on aquaculture <http://www.nationalgeographic.com/foodfeatures/aquaculture/>, an important resource management tool for small islands.

Here’s a summary graphic:

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An NGO Making a Difference: South River Federation, Annapolis, MD

Posted in Development, Erosion & Sediment Control, Uncategorized, Watershed Management | Leave a comment

College Grads Past 10 Years: Income Flat; Debts Up 35%

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Beavers versus Humans — A Case of Underfunded Infrastructure

The April 13th Bay Journal has a great OpEd by Tom Horton <http://www.bayjournal.com/article/core_sediments_reveal_when_a_wetter_bay_was_wildly_healthier> about Grace Brush’s research, and beavers, that spells it out:

Chesapeake Born

Core sediments reveal when a wetter Bay was wildly healthier

  • By Tom Horton on April 13, 2014

Grace S. Brush of Johns Hopkins University holds a core sample taken from the Blackwater River in 2003. Sediment core samples taken from the bottom of the Bay have revealed how changes on the land have affected water quality. (Dave Harp)

Grace S. Brush of Johns Hopkins University holds a core sample taken from the Blackwater River in 2003. Sediment core samples taken from the bottom of the Bay have revealed how changes on the land have affected water quality. (Dave Harp)

It’s common knowledge that the healthy Chesapeake Bay described by John Smith in 1608 was greener, its forest extending across more than 90 percent of its six-state watershed.Less appreciated is how much soggier, boggier, swampier and wetter that good, green watershed was. Beavers that likely numbered in the low millions controlled the hydrology of hundreds of thousands of streams—damming, impounding and creating a rich and damp mosaic on the landscape.

“Great Shellfish Bay” — American Indians’ name for the Chesapeake — might be amended to include “Great Beaver Bay” if we acknowledge the intimate connections between water and watershed.The wetter, better-beavered landscape checked sediment; converted nitrogen-laden runoff that plagues today’s water quality into harmless gas; restrained the peaks of floods; and recharged the Bay’s rivers during droughts. It created a cleaner, clearer, stable place for life.Bevies of beavers might be the cheapest way to a better Bay; but legions of tree-felling, land-flooding rodents would conflict too heartily with human schemes.

But beaver mimicry is another matter, restoring wetness every way and everywhere we can — from rain gardens throughout suburbia, to strategically placed, engineered wetlands, to retention dams in farm and roadside drainage ditches.Current efforts just scratch the surface of what is possible.

Low-lying, poorly drained, heavily ditched farmland everywhere should be a prime target for purchase and reversion to the wild and wet. Retrofitting every paved surface to let stormwater soak in would advance the cause further.We needn’t achieve the watershed of John Smith to see results. The Bay showed substantial resilience in the face of increasing human pressures for centuries, only to truly fall fatally apart in the 1950s.

All these vital and hopeful links between the once and future Bay are detailed wonderfully in a unique library in the Bay’s bottom opened only recently by scientists like Grace S. Brush of Johns Hopkins University.Her 2009 paper, “Historical Land Use, Nitrogen and Coastal Eutrophication: A Paleoecological Perspective*,” published in Estuaries and Coasts, should be required reading for anyone at any level teaching about Chesapeake Bay (or about beavers).

Essentially, Brush figured how to “read” the Bay’s land use history going back millennia, and how changes in the watershed translated into changes in the water.She did this by extracting yards-long cores of sediment from across the Bay’s bottom. Then, bottom to top, ancient past to present day, she analyzed the seeds and pollens and other data deposited there.At a level deep in the sediments washed from the watershed around A.D. 1000, for example, charcoal from more frequent fires corresponds to a centuries-long medieval warming period.

She can tell when forest clearing for European agriculture began as pollen from the ragweed of open fields increases; and when the Bay’s underwater grass pollens dived sharply in the 1970s after centuries of relative abundance.

This last evidence was critical in disabusing the false hope of some government officials that the seagrass decline was just a natural cycle.Volumes from the library, summarized in Brush’s paper, show how forests began to take a serious hit around the middle 1800s as a growing human population, the invention of the steel plow and markets for timber led to the clearing of all but about 20 percent of the watershed by the early 1900s.

The watershed since then has actually re-greened — to nearly 60 percent forest — as people moved into towns and cities, and farms were able to produce more food on fewer acres. But it was a different sort of green, significantly less wet.

Trapping largely abolished the beavers and their dams by the mid-1750s. Indeed, the sediment cores show a small but significant decrease in nitrogen runoff, a trend that would not turn up until human sewage and commercial fertilizers came on strong in the 1900s. Brush suspects the decline may reflect a decline in beaver poop.In addition, drainage ditching for farms, roads and development further dried out the landscape. “Well-drained” is not as good as it sounds. And increased paving made rain run off hurriedly, no time to soak in.

So it was a different kind of green that returned. Brush’s sediment cores show a big decline in pollens from wetland vegetation and moisture-loving plants in general.

The sediment library documents a most telling shift occurred rapidly in mid-20th century, as human inputs of nitrogen and other pollutants soared. The dominant algae in the Bay shifted dramatically from bottom-dwelling species to surface-floating algae.

The estuary was beginning to “flip,” to lose its bottom — its oysters, its plankton, and by the 1970s, its vital seagrass meadows. The capsize of an incredible ecosystem was complete.It wasn’t just the loss of wetness. Overharvesting, oyster diseases, intensive agriculture, sewage and air pollution were all culprits.

Still, there’s a future for the Chesapeake in its past, as remembered in its sediments, and it’s wet.avatar_453.jpgAbout Tom Horton
Tom Horton covered the Bay for 33 years for The Sun in Baltimore, and is author of six books about the Chesapeake. He is a freelance writer, splitting his time between Baltimore and Maryland’s Eastern Shore.

Read more articles by Tom Horton

* A Powerpoint of the Grace Brush presentation to MD DNR is available on-line at <http://www.dnr.state.md.us/streams/pdfs/brush29apr09.pdf&gt;

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governance Big Data – Big Problem

The Big Caveats for Big Data, as summarized by Tom Simonite of the MIT Technology Review is at:

http://www.technologyreview.com/view/527071/five-things-obamas-big-data-experts-warned-him-about/

Five Things Obama’s Big Data Experts Warned Him About

The rise of big data techniques poses risks to society that call for new laws, a White House report concludes:

When President Obama spoke in January about reforming U.S. surveillance, he also asked a panel of experts to spend 90 days investigating the potential consequences of the use of technology that falls under the umbrella term “big data.” The 68-page report was published today and repeatedly emphasizes that big data techniques can advance the U.S. economy, government, and public life. But it also spends a lot of time warning of the potential downsides, saying in the introduction that:

“A significant finding of this report is that big data analytics have the potential to eclipse longstanding civil rights protections in how personal information is used in housing, credit, employment, health, education, and the marketplace.”

Here are five specific things the report warns the president of:

1. Data on all of us is piling up fast in the hands of public and private sector organizations and can’t practically be clawed back.

“Data, once created, is in many cases effectively permanent … The technological trajectory, however, is clear: more and more data will be generated about individuals and will persist under the control of others. Ensuring that data is secure is a matter of the utmost importance.”

2. Privacy laws are outdated. The primary legislation governing data privacy is the Privacy Act of 1974 and the Electronic Communications Privacy Act of 1986. One problem the report raises is that these laws are hard to apply to data stored in the cloud.

“We will continually need to examine our laws and policy to keep pace with technology, and should consider how the protection of content data stored remotely, for instance with a cloud provider, should relate to the protection of content data stored in a home office or on a hard drive. This is true of emails, text messages, and other communications platforms, which over the past 30 years have become an important means of private personal correspondence, and are most often stored remotely.”

3. The way data is used to “personalize” prices, promotions, and access to financial services creates risks of discrimination against minority groups.

“The ability to more precisely target advertisements is of enormous value to companies … However, private-sector uses of big data must ensure vulnerable classes are not unfairly targeted. The increasing use of algorithms to make eligibility decisions must be carefully monitored for potential discriminatory outcomes for disadvantaged groups, even absent discriminatory intent.”

4. Efforts to make online ad tracking more transparent are a mess.

“Users, more often than not, do not understand the degree to which they are a commodity in each level of this marketplace … technologies to improve transparency and privacy choices online have been slow to develop, and for many reasons have not been used widely by consumers.”

5. Congress needs to enact new legislation. The report ends with six concrete policy proposals, two of which require action from Congress: updating the 1986 Electronic Communications Privacy Act and passing a new law to set hard rules on how companies should respond to data breaches, such as that which saw details of 40 million credit and debit cards stolen.

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What would Alister Think?

This search link at the Digital Library of the Caribbean/Caribbean Newspaper Digital Library <http://dloc.com/results/table/?text=%22eric+gairy%22+%22grenada+newsletter%22> shows 136 references to “Eric Gairy” in the Grenada Newsletter (published 1974 to 1992 by Cynthia and Alister Hughes in St. George’s), in case anyone wonders, as I did, what dear departed Alister might have to say about renaming the Botanic Garden after the first Prime Minister . . . . . or leader of the Mongoose Gang, if you will. . . . [A search on “Eric Gairy”and “mongoose” in the 477 editions of the Grenada Newsletter catalogued at the DLoC shows 33 hits — perhaps it would be more appropriate to rename the zoological garden rather than the Botanical Gardens?]

from the CaribJournal <http://www.caribjournal.com/2014/04/16/grenada-to-rename-botanical-gardens-for-first-prime-minister/>

Grenada to Rename Botanical Gardens For First Prime Minister

April 16, 2014 | 11:39 am | Print

Grenada to Rename Botanical Gardens For First Prime Minister


Above: the Botanical Gardens in Grenada

By the Caribbean Journal staff

Grenada will be renaming its Botanical Gardens after the country’s first Prime Minister, Sir Eric Matthew Gairy, according to the government.

Social Development Minister Delma Thomas said a team would soon begin upgrades to the gardens as part of the project.

“We will have a group of volunteers, international volunteers, who will be joining our local persons, students from TAMCC, in helping to revitalize the whole area to make it an attractive site as we recognize the tremendous contribution that Sir Eric Mathew Gairy made to Grenada,” Thomas said following a Cabinet briefing on Tuesday.

In a statement, the government said the renaming was part of a government initiative to honour Gairy.

“Our father of independence, he was our first prime Minister and he has done a lot for our country and we must recognize what he has done,” Thomas said.

Gairy served as Prime Minister of Grenada from 1974 until 1979, when he was overthrown by a coup.

Bruce
bpotter

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Five-Meter Shark Tagged off Western Australia

A Series of Articles from Western Australia (WA) about [Great White] Sharks
from Australia Broadcasting. . . <http://www.abc.net.au/news/2014-04-15/swimmes-warned-after-great-white-spotted-off-south-west-coast/5392236>

Massive great white shark attracted to whale carcass on WA beach prompts warning to swimmers

Updated 2 hours 33 minutes ago

An image of one of the biggest great white sharks ever tagged has sparked a flurry of online interest and a fresh warning to swimmers off WA’s south coast.

The 5.04-metre shark, the largest ever fitted with an internal acoustic tag off the Australian coast, was detected near Albany at the weekend when a distressed whale beached itself.

The City of Albany closed beaches on Saturday and the carcass was removed, but the massive shark is believed to have remained in the area.

The shark was fitted with an internal tag last month when it was swimming near Mistaken Island off the Albany coast.

Department of Fisheries officers hooked the great white and flipped it onto its back near the side of their boat.

The department’s Mark Kleeman said a photo taken during the procedure shows the shark in a state of temporary paralysis known as “tonic immobility”.

“In a sense the shark basically goes to sleep, which enables our technical officers to do a small surgical procedure to implant an acoustic tag inside the shark’s gut cavity,” he said.

At the time it was taken the Fisheries officer was completing the final stitches to the female shark’s belly as it lay docile in the water.

Mr Kleeman said the shark woke up as soon as it was flipped over.

 

“It was an impressive feat,” he said.

“In this instance the shark came pretty much instantaneous back to life.

“All the ropes and the equipment used to secure the animal has quick release clips on it, so she was quickly released so she swam off very strongly.”

He said the tag – the second to be attached to the animal – would allow it to be monitored for the next 10 years.

The giant great white has been detected periodically near Albany since it was tagged.

It was last detected at Ellen Cove, near one of the city’s popular swimming beaches, at 5:44am (AWST) today.

Mr Kleeman said swimmers near Albany should be cautious for the next few days.

“Obviously with that whale incidence and the distress signals that would have sent out, it would have attracted sharks and they will probably frequent the beach on and off for the next few days,” he added.

WA seeking to extend catch-and-kill program

Western Australia currently has a catch-and-kill policy for great white, tiger and bull sharks larger than three metres that come close to certain beaches.

The State Government recently moved to extend federal approval for the divisive program for another three years.

Fatal shark attacks in WA since 2000

  • Surfer Chris Boyd: Gracetown, Nov 23, 2013
  • Surfer Ben Linden: Wedge Island, July 14, 2012
  • Diver Peter Kurmann: Geographe Bay, March 31, 2012
  • Diver George Wainwright: Rottnest Island, Oct 22, 2011
  • Swimmer Bryn Martin: Cottesloe Beach, Oct 10, 2011
  • Surfer Kyle Burden: Bunker Bay, Sept 4, 2011
  • Surfer Nick Edwards: Gracetown, Aug 17, 2010
  • Snorkeler Brian Guest: Port Kennedy, Dec 27, 2008
  • Snorkeler Geoffrey Brazier: Abrolhos Islands, Mar 18, 2005
  • Surfer Brad Smith: Gracetown, July 10, 2004
  • Swimmer Ken Crew: North Cottesloe, Nov 6, 2000

WA introduced the policy of setting baited drum lines off five Perth beaches and two in the south-west following an increase in fatal shark attacks in the past 10 years.

Albany does not have baited drum lines off the coast.

Federal approval for the policy only lasts for three more weeks and in order to be extended, the program will have to face a full environmental assessment under Commonwealth law.

Under the proposal, the WA Government would set up to 60 baited drum lines off metropolitan and south-west beaches from November 15 to April 30 each year.

Another 12 would be held in reserve to be deployed when sharks over three metres come close to WA beaches.

Lines would not be set in any proposed marine sanctuary zone, gazetted or proposed recreation zone in any Western Australian marine park or designated fish habitat protection area.

Since the program’s inception the Government has been forced to fend off countless protests and a Supreme Court legal challenge.

Shark policy remains controversial

In March, the Environmental Protection Authority (EPA) ruled out assessing Western Australia’s controversial shark cull, saying it posed a negligible risk to the species.

The decision to cull has been controversial and there have been a number of public protests.

The EPA was called on to assess the policy and rule whether it was environmentally acceptable.

It received 23,000 submissions during a public consultation, which ended in February.

In March, Sea Shepherd failed to get a Supreme Court order to stop the cull.

It had argued the catch-and-kill policy had been improperly introduced, but the Supreme Court ruled the introduction of the drum lines was valid.

 

[The banner at the top of the Potter’s Weal blog <Pottersweal period com> is Muriwai Beach on North Island, New Zealand, where a beach guard was killed the week before by three sharks. Beware big fish in the antipodes. BP]

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Increased Power Outages . . .

Report: Power outages due to weather have doubled since 2003

From the Washington Post’s “Weather Gang:”

(Climate Central)

(Climate Central)

Climate Central released a report Thursday with a remarkable conclusion, but one that may not surprise too frequently “in the dark” Washington, D.C.-area residents: the number of weather-related power outages has shot up since the 1980s, and doubled since 2003.

The Princeton, NJ-based non-profit conducted a national analysis of the last 28 years of outage data from U.S. Department of Energy’s Office of Electricity Delivery and Energy Reliability, and from the North American Electric Reliability Council. It found a stunning ten-fold increase in outages over the period, spanning 1984-2012.

Some of the increase since the 1980s is due to increased outage reporting, Climate Central cautions. ”Yet even since 2003, after stricter reporting requirements were widely implemented, the average annual number of weather-related power outages doubled,” the report finds.

(Climate Central)

(Climate Central)

Virginia and Maryland were both among the ten states with the most weather-related outages since 2003, ranking 5th and 6th, respectively. In that time span, the region was rocked by Hurricanes Isabel (2003), Irene (2011), and Sandy (2012), the June 2012 derecho, and Snowmageddon (2010), all mass-outage events.

Four power companies which serve the Washington, D.C. region (Dominion, Pepco, Baltimore Gas and Electric, and Allegheny) were among the top 25 utilities with the most reported major weather-related outages from 2003-2012, nationally.

The surge in outages raises the question: what’s the cause of the uptick?

Climate Central explains many factors may be driving the increase – from a vulnerable grid under heavy demand to an apparent increase in extreme weather events, some of which may be linked to human-induced climate change. It describes climate change as an outage “threat multiplier” but cautions linking certain extreme weather events to climate change is difficult.

“Climate change is, at most, partially responsible for this recent increase in major power outages, which is a product of an aging grid serving greater electricity demand, and an increase in storms and extreme weather events that damage this system,” the report concludes. “But a warming planet provides more fuel for increasingly intense and violent storms, heat waves, and wildfires, which in turn will continue to strain, and too often breach, our highly vulnerable electrical infrastructure.”

The full report is worth a read: BLACKOUT: EXTREME WEATHER, CLIMATE CHANGE AND POWER OUTAGES

Jason Samenow

Jason Samenow is the Capital Weather Gang’s chief meteorologist and serves as the Washington Post’s Weather Editor. He earned BA and MS degrees in atmospheric science from the University of Virginia and University of Wisconsin-Madison.
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Commonwealth Small Islands Agree . . . (annotated version of Jamaica Observer article)

From the Jamaica Observer of 31 March 2014 <http://www.jamaicaobserver.com/news/Commonwealth-countries-agree-on-way-forward_16377957>

Commonwealth countries agree on way forward

Monday, March 31, 2014

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St Lucian Prime Minister Dr Kenny Anthony

CASTRIES, St Lucia (CMC) — Commonwealth countries have ended a two-day meeting here, identifying key “vulnerable” priority areas geared at building resilience and sustainability in small developing states.

Delegates attending the third Biennial Conference on Small States agreed to maintain their approach to get the international community to pay more attention to the challenges faced by their nations.

With the Commonwealth’s five key pillars of resilience — building of macro-economic stability; micro-economic market efficiency; good governance; social development and cohesion; and sound environmental management as the backbone of their strategy — the meeting has adopted a blueprint for finalising a framework towards building resilience.

The meeting “emphasised the conceptual underpinnings of vulnerability and resilience in each of the five pillars and the use of resilience profiling to drive progress forward”.

The Commonwealth said a critical component of the framework is the forging of strong partnerships in order to acquire much needed global financing and a better trade environment.

“The issues that were discussed over that last two days will be used to feed into the G20* development forum which the Commonwealth plays an important technical role,” said Commonwealth Deputy Secretary General, Deodat Maharaj.

“What is valuable of that forum is that we also have other important partners — not only the G20 countries but also institutions such as the World Bank. As a matter of fact on the issues that we discussed here one key issue was how do you deal with shocks associated with natural disasters,” he said.

The Commonwealth says it plans to lobby other small states ahead of the Small Island Developing States (SIDS) conference to be held in Samoa later this year in order to get support for the use of a “vulnerability index”.

“One of the key deliverables therefore that we are seeking following the conference and for the Small Island Developing States conference taking place in Samoa will be the finalisation of the resilience index which can better help small island developing states to access concessional and development financing,” said Seychelles Foreign Affairs Minister Jean-Paul Adam.

“One of the key concerns that have been raised for example is debt and the debt overhang that many island countries have and it’s a question of finding innovative ways to address these issues,” Adam.

Other deliverables included the “innovative and non-traditional measures to address high debt burdens; the inclusion of vulnerability as a criteria for access to concessional resources; the development and application of counter-cyclical loans for mitigation of growth and debt challenges as well as a debt for climate change adaptation and mitigation swaps“.

Adam and his St Lucia counterpart, Alva Baptiste said that the 53-member** grouping now has a six-month timeline to get the “vulnerability index”, which is a concept already in progress by the Commonwealth ready for the September SIDS meeting.

“So when we have developed that vulnerability index it gives us a better chance of now attracting concessionary financing so that we can reduce our debt, get the opportunity to have more room to manoeuvre and fiscal flexibility that we can now stimulate more employment for the people of the country, deal with poverty in a more decisive way,” Baptiste said.

He told reporters, “As you reduce poverty and unemployment, a greater number of your citizens will now have access to finance, so that they can make an effective demand for goods and services in the economy. And so it will contribute to growth and the well-being of the people of the perspective jurisdictions.”

The link between governance and resilience was also discussed with delegates exploring options for policymakers to strengthen their governance framework, given their limited human and financial resources.

On the issue of climate change, delegates highlighted the need for ocean forecasting to predict impacts from climate change. They also called for action on land-based sources of pollution as well as concrete efforts to strengthen oceans and seas issues.

– – – – – – – – – – – – – – – – –

*G20 Members: Countries

  • Argentina
  • Australia
  • Brazil
  • Canada
  • China
  • France
  • Germany
  • India
  • Indonesia
  • Italy
  • Japan
  • Mexico
  • Russia
  • Saudi Arabia
  • South Africa
  • Korea
  • Turkey
  • United Kingdom
  • United States
  • European Union

– – – – – – – – – – – – – – – – –

**Can’t find the 53rd SID, but here’s Wikipedia’s list of 52 SIDS, with collateral memberships noted in footnotes:

Caribbean Pacific Africa, Indian Ocean, Mediterranean and South China Sea (AIMS)
Anguilla[a][b][c] American Samoa[d][e][c] Bahrain[a][e]
Antigua and Barbuda Cook Islands[c] Cape Verde[e]
Aruba[a][f] Federated States of Micronesia Comoros[g]
Bahamas Fiji Guinea-Bissau[g][e]
Barbados French Polynesia[a][b][c] Maldives[f]
Belize Guam[d][e][c] Mauritius
British Virgin Islands[a][b][c] Kiribati[g] São Tomé and Príncipe[g][e]
Cuba[e] Marshall Islands Seychelles
Dominica Nauru Singapore[e]
Dominican Republic[f] New Caledonia[a][b][c]
Grenada Niue[c]
Guyana Northern Mariana Islands[a][e][c]
Haiti[g] Palau
Jamaica Papua New Guinea
Montserrat[a][c] Samoa[g]
Netherlands Antilles[d][f][c] Solomon Islands[g]
Puerto Rico[a][f][c] Timor-Leste[g][a][f]
Saint Kitts and Nevis Tonga
Saint Lucia Tuvalu[g]
Saint Vincent and the Grenadines Vanuatu[g]
Suriname
Trinidad and Tobago
United States Virgin Islands[d][e][c]

Notes (a = 1, b = 2, etc.)

  1. Neither member nor observer of the Alliance of Small Island States
  2. Associate member of regional cooperation body
  3. Not a member of the United Nations
  4. Observer of the Alliance of Small Island States
  5. Neither member nor observer of regional cooperation body
  6. Observer of regional cooperation body
  7. Also a Least developed country
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Dramatic Increases in Rate of Coastal Wetland Loss

This issue is especially significant for SMALL ISLANDS, given the importance of preserving coastal wetlands in the face of climate change effects, including especially sea level rise and increased frequency of coastal storms.

abc article dramatic coastal wetland losses 2014 03 20

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