View allAll Photos Tagged Aggregation
A view from both sides of a mixed sleeping aggregation Megachile nigrovittata & Megachile deanii on dead Cobbler peg plant (Bidens pilosa)
Hong I-nan was the first president of this aggregation of poets, Yeeng-ser community, . They were allowed to continue using Han-yui , their mother tongue, to communicate and teach.this activity was then regarded as a way to save taiwanese culture under japanese governence. this photo was taken in 1909, in this society's first gathering,. in Hong's residense in Taipei city. This place is now part of the old national taiwan university hospital and other nearby buildings.
601 TuringTower Studio at University of Pennsylvania, School of Design, Fall 2014. Student: Jae geun Ahn
One of two aggregations of bees hanging from the BART tracks in El Cerrito.
This one had a visible structure
after 5 hours
from Tamandua Reserva Flores, Ecuador: www.flickr.com/andreaskay/sets/72157671181153332
Graves Light, Boston Harbor.
The Graves is an aggregation of rock outcroppings in Massachusetts Bay, Massachusetts, United States. Situated some 11 miles (18 km) offshore of downtown Boston, it is the outermost island in the Boston Harbor Islands National Recreation Area.
It is the location of The Graves Light, at 113 feet (34 m) tall the tallest lighthouse in Boston Harbor, and an important navigation aid for traffic to and from the port. The island has a permanent size of 1.8 acres, and rises to a height of 15 feet (4.6 m) above sea level; there is only aquatic vegetation on the island. The island is managed by the Coast Guard, and is not open to the public.
The Graves are named after Thomas Graves, a prominent early trader of colonial Massachusetts.
The Graves are northeast of the Roaring Bulls and far northwest of Three and One-half Fathom Ledge. Despite their offshore location, the Graves are within the city limits of Boston.
A new major shipping channel into Boston Harbor, the Broad Sound Channel, opened in the early 1900s, necessitating a lighthouse at the Graves.
In 1902, Congress appropriated $75,000 for a lighthouse and fog signal, and Governor Crane of Massachusetts signed a deed conveying 435,400 square feet at the ledges to the federal government.
The project ultimately cost $188,000, meaning a second appropriation of $113,000 was required in April 1904.
Construction took place from 1903 to 1905, and Royal Luther of Malden, Massachusetts, was in charge. The style of Graves Light is very similar to Maine's Ram Island Ledge Light, built at about the same time.
The granite for the tower was cut at Rockport on Cape Ann. Rock on the ledges was blasted, and the foundation was laid just four feet above the low tide mark. The first 42 feet were completed in the summer of 1903.
A schooner transported materials from Lovell's Island, 3 1/2 miles away, to the Graves, and a 75-foot steamer transported workers to the site. A shanty was constructed on the highest ledge of the Graves, connected to the wharf by a 90-foot elevated walkway. The shanty had living quarters, a storeroom, a blacksmith shop, and a kitchen, and up to 30 men lived there in the summers of 1903 and 1904.
While the granite was being put in place, the ironwork was being manufactured in Boston and a huge first-order Fresnel lens was being created in Paris.
The summer of 1904 saw the lighthouse reach a height of 88 feet. Construction was completed during the following year. A granite oil house was built 90 feet south of the tower, reachable by a footbridge.
On the night of September 1, 1905, Graves Light's first keeper, Elliot C. Hadley, lighted the most powerful light in Massachusetts history for the first time. The gigantic lens floated on 400 pounds of mercury. After the completion of Graves Light, a Lighthouse Establishment report stated:
At so exposed a site the height necessary for the lantern above the heavier masses of spray, the consequent geographic range, its location so far seaward, the service of the light to the large commerce of Boston and modern ships of deep draft, make it perhaps the most important light north of Cape Cod.
Like spotted seatrout and other sciaenid (drum) species, sand seatrout (Cynoscion arenarius) form large groups called aggregations and, using specialized sonic muscles that they pulse against their swim bladders, also produce a distinctive sound as part of their spawning behavior.
Aggregation of Andrena agilissima nests with several females sharing same nest entrance.
A small east-facing slope in a shady spot.
Thanks to Michel to show me the place .
Custom hand-drawn strategic visualizations on the digital heritage field in Europe, by order of DEN and Europeana
PROJECT:
Aggregations
PHOTO CREDIT:
James Harris?
Exhibit: Johnson Trading Gallery
Location: Design Miami/ 2008, Miami, Florida, USA
These images, which include an encounter with a huge whaleshark were taken far offshore off Costa Rica close to an illegal fishing device (FAD). This Fish Aggregation Device was a raftlike structure manufactured to attract as much sealife as possible, but mainly spawning tuna.
Purse sein fisheries scoop up all life that has accumulated around the raft with their massive nets. Any bycatch from small fish to this huge whaleshark, dolphins and even seaturtles are killed in the process. That is why these FAD's are illegal.
They are however used widely in the pacific to feed our tuna riddled dishes..
Every fall, large aggregations of red drum form in nearshore Gulf waters to spawn. Spawning typically starts in mid-September and continues for about two months. Since 2009, Dr. Lowerre-Barbieri and her team have used aerial surveys to assess the distribution and number of spawning aggregations, as well as target aggregations for acoustic tagging. The research team is working to determine where and how red drum travel, as well as whether red drum exhibit spawning site fidelity by returning consistently to some specific location, such as where they were spawned. More information on this study can be found on our website.
In reality, sounds come through the hydrophone (underwater microphone) not one by one or species by species, but as a mixed-up cacophony. To confirm their field observations, researchers replay and amplify the recordings in the lab to isolate and identify the various sound-producing species.
PROJECT:
Design Miami/ Temporary Structure
PHOTO CREDIT:
James Harris
Design Miami/ Temporary Structure
Aranda\Lasch in collaboration with EventStar
Miami, Florida, USA
2008
Damaged MCH flakes. MCH is an anti-aggregation pheromone used to protect trees from attack by the Douglas-fir beetle.
More information about the damaged flakes from Connie Mehmel:
"The spreader that was used for application had been tested and calibrated with 10 kg of flakes in the hopper, and appeared to be working well. However, when 100 kg was loaded in the hopper for application the auger jammed, damaging the load. The flakes delaminated, as shown in this photo."
Photo by: Connie Mehmel
Date: May 11, 2015
Photo credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Wenatchee Service Center.
Source: Connie Mehmel collection. Wenatchee, Washington.
For more information about MCH see:
Ross, Darrell W., Kenneth Edward Gibson, and Gary E. Daterman. 2015. Using MCH to protect trees and stands from Douglas-fir beetle infestation. Forest Health Technology Enterprise Team, US Department of Agriculture, Forest Service.
www.fs.fed.us/foresthealth/technology/pdfs/MCH_handbook_1...
Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
This building, probably the aggregation of three smaller buildings, derives its name from the discovery of human remains in a second floor room in 1831. This was the first body to be found in the town which had assumed to have been abandoned when the eruption began.
sites.google.com/site/ad79eruption/herculaneum-1/insula-i...
This photo taken near Cape Lookout, NC displays a large aggregation of seabirds on a sandbar. There are many different species on this sandbar, brown pelicans, cormorants, albatrosses, and many others. This gathering is fairly common, as most birds are social in nature, however if food was involved, interspecific and intraspecific competition would be evident. These birds are most likely waiting for gifted food from passing boats, scanning the surrounding shallows for prey, or sunning themselves to dry out their wings.
1966年美軍透過1954年中美簽訂的共同防禦條約興建油庫七座，提供美軍在越戰期間戰鬥機及B52轟炸機的飛機用油所需，因位於楊厝里故當地習稱大楊油庫。(digitalculture.tw/aggregation/2991)
20 February 2020, Embu, Kenya - A woman is holding macadamia seeds during a farm tour for young farmers to connect the youth to local farms and producers organised by FAO.
Agribusiness has been sighted as one of the pillars that can be used to reduce rural-urban migration of the youth. In Kenya, the mean average age of the population is 19 years, with 80% of the 49m people being below age 35. This project aims to address the adverse drivers of rural out-migration of youth, by creating additional and improved employment and entrepreneurship opportunities in agri-business.
Photo credit must be given: © FAO/Fredrik Lerneryd
Red drum begin spawning in the fall when daylight hours decrease and water temperature begins to cool. They can reach lengths up to 45 inches and weigh up to 51 pounds.
PROJECT:
Design Miami/ Temporary Structure
PHOTO CREDIT:
James Harris
Design Miami/ Temporary Structure
Aranda\Lasch in collaboration with EventStar
Miami, Florida, USA
2008
MCH flakes. MCH is an anti-aggregation pheromone used to protect trees from attack by the Douglas-fir beetle.
Photo by: Connie Mehmel
Date: May 11, 2015
Photo credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Wenatchee Service Center.
Source: Connie Mehmel collection. Wenatchee, Washington.
For more information about MCH see:
Ross, Darrell W., Kenneth Edward Gibson, and Gary E. Daterman. 2015. Using MCH to protect trees and stands from Douglas-fir beetle infestation. Forest Health Technology Enterprise Team, US Department of Agriculture, Forest Service.
www.fs.fed.us/foresthealth/technology/pdfs/MCH_handbook_1...
Image provided by USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth
Socially Mobile
Location Aggregation for Mobile Devices
January 28, 2004
Dennis Crowley
dens@dodgeball.com
I made this trip to see the spawning aggregations of Goliath Groupers. The week before I arrived there were torrential rains and strong winds from the southwest which had blown the Gulf Stream far offshore. The water was stirred up, green, full of floc, and with a thermocline around 40-55’. But the Goliaths were still there and really impressive!! Frequently 15-30 or more per wreck; it was hard to count with the limited vis. I will be planning to come back next year hoping for better picture taking conditions.
Graves Light, Boston Harbor.
The Graves is an aggregation of rock outcroppings in Massachusetts Bay, Massachusetts, United States. Situated some 11 miles (18 km) offshore of downtown Boston, it is the outermost island in the Boston Harbor Islands National Recreation Area.
It is the location of The Graves Light, at 113 feet (34 m) tall the tallest lighthouse in Boston Harbor, and an important navigation aid for traffic to and from the port. The island has a permanent size of 1.8 acres, and rises to a height of 15 feet (4.6 m) above sea level; there is only aquatic vegetation on the island. The island is managed by the Coast Guard, and is not open to the public.
The Graves are named after Thomas Graves, a prominent early trader of colonial Massachusetts.
The Graves are northeast of the Roaring Bulls and far northwest of Three and One-half Fathom Ledge. Despite their offshore location, the Graves are within the city limits of Boston.
A new major shipping channel into Boston Harbor, the Broad Sound Channel, opened in the early 1900s, necessitating a lighthouse at the Graves.
In 1902, Congress appropriated $75,000 for a lighthouse and fog signal, and Governor Crane of Massachusetts signed a deed conveying 435,400 square feet at the ledges to the federal government.
The project ultimately cost $188,000, meaning a second appropriation of $113,000 was required in April 1904.
Construction took place from 1903 to 1905, and Royal Luther of Malden, Massachusetts, was in charge. The style of Graves Light is very similar to Maine's Ram Island Ledge Light, built at about the same time.
The granite for the tower was cut at Rockport on Cape Ann. Rock on the ledges was blasted, and the foundation was laid just four feet above the low tide mark. The first 42 feet were completed in the summer of 1903.
A schooner transported materials from Lovell's Island, 3 1/2 miles away, to the Graves, and a 75-foot steamer transported workers to the site. A shanty was constructed on the highest ledge of the Graves, connected to the wharf by a 90-foot elevated walkway. The shanty had living quarters, a storeroom, a blacksmith shop, and a kitchen, and up to 30 men lived there in the summers of 1903 and 1904.
While the granite was being put in place, the ironwork was being manufactured in Boston and a huge first-order Fresnel lens was being created in Paris.
The summer of 1904 saw the lighthouse reach a height of 88 feet. Construction was completed during the following year. A granite oil house was built 90 feet south of the tower, reachable by a footbridge.
On the night of September 1, 1905, Graves Light's first keeper, Elliot C. Hadley, lighted the most powerful light in Massachusetts history for the first time. The gigantic lens floated on 400 pounds of mercury. After the completion of Graves Light, a Lighthouse Establishment report stated:
At so exposed a site the height necessary for the lantern above the heavier masses of spray, the consequent geographic range, its location so far seaward, the service of the light to the large commerce of Boston and modern ships of deep draft, make it perhaps the most important light north of Cape Cod.
The 113-foot tall Graves Light is visible from a 24-nautical mile range.
The tallest of the three lighthouses in Boston Harbor, the Graves is sited at the main entrance to Boston Harbor, and continues its tradition as a navigational aid, though now automated.
I came across a mating aggregation of Chromis viridis, where an estimated few thousand individuals crowded on a patch of seagrass in ~ 5 meters and frantically mated. The males turned either slightly yellow, with black fin edges, or completely yellow, with a black caudal fin. What a spectacle!
For some scientific background, and a video of the spectacle, see: www.pacificklaus.com/chromis-viridis-mating-aggregation
Pictured here is an aggregation of turtles sunbathing on a rock in the middle of a pond. These turtles are most likely common snapping turtles, Chelydra serpentina, although this is not completely clear. These turtles are unable to regulate their body temperatures and are therefore completely dependent on the temperature of their environment. Because of this, they need to frequently sunbathe in order to maintain their ideal body temperatures. Because snapping turtles eat both plant and animal matter, they are considered important aquatic scavengers as well as active hunters. Common snapping turtles have only a few predators when they are adults, but eggs are subject to predation by many different sources. This points towards snapping turtles having a type III survivorship curve where most individuals die at a young age and adults having a relatively low annual mortality rate.
Art Work: Aggregation
Artist: Chun Kwang Young (Korean)
chunkwangyoung.com/html/main.php
INFO: fr.wikipedia.org/wiki/Chun_Kwang_Young
Reference: www.google.com.tw/search?q=kwang+young+chun+artist&es...
Art Plural Gallery
Director: Frederic de SENARCLENS
A:: 38 Armenian Street, Singapore 179942
T:: +65 6636 8360
F:: +65 6636 8361
E:: info@artpluralgallery.com
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This shot was taken in an exhibition "ART TAIPEI 2014".
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* PS - This roll got exposed on 2014/11/01, developed by a local studio 達蓋爾銀鹽暗房工作室 on 2014/12/01, and scanned with "Epson Perfection V600 Photo" on 2014/12/12.
(Check out 達蓋爾銀鹽暗房工作室 FaceBook, go to www.facebook.com/pages/%E9%81%94%E8%93%8B%E7%88%BE%E9%8A%...)
Large spawning groups of black drum (Pogonias chromis), called aggregations, produce characteristic sounds as part of their spawning behavior, usually beginning in January and lasting through early spring.
Passive acoustics, a noninvasive method of learning about fish by studying their sounds, allows researchers to gain knowledge about fish behavior without having to disrupt their activities or sacrifice fish. For an example of how this technique is used by researchers at FWC's Fish and Wildlife Research Institute, view the article "Mapping Spawning Habitat of Spotted Seatrout (Cynoscion nebulosus) in Tampa Bay."