View allAll Photos Tagged Aggregation
PROJECT:
Aggregations
PHOTO CREDIT:
James Harris?
Exhibit: Johnson Trading Gallery
Location: Design Miami/ 2008, Miami, Florida, USA
An aggregation of vestimentiferan tubeworms (Lamellibrachia sp.) interspersed with chemosynthetic mussels. A large white urchin is seen in upper left and a white chiton can be found in the lower left attached to a mussel.
Image ID: expl7875, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Location: Gulf of Mexico, North
Photo Date: 2012 April 6
Credit: NOAA Okeanos Explorer Program, Gulf of Mexico 2012 Expedition
PROJECT:
The Morning Line
PHOTO CREDIT:
Aranda\Lasch
by Matthew Ritchie with Aranda\Lasch and Arup AGU
Commissioned by Thyssen-Bornemisza Art Contemporary
Seville, Spain, 2008
An aggregation of sardines envelop a group of predatory green jacks in the Gulf of California. Photographer and Scripps Institution of Oceanography, UC San Diego, marine biologist Octavio Aburto-Oropeza is co-creator of the Natural Numbers, a new multimedia website to encourage wise use of marine resources. The site points out that the 10.5 million tons of sardines caught in Mexico’s fishery over a recent 20-year period could have met the animal protein needs of the entire population of that country for a year. Instead the majority of fished sardines are used in animal feed. The overfishing of sardines now threatens populations of marine animals that feed on them.
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.
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.
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 .
I have found these aggregations more often on rocks. This is on Dege Pk., WA state, USA.
On heather and rock in open subalpine at 2134m / 7,000'.
These aggregations are quite common on mountain tops. I gave up trying to key them out. "dougwaylett" has recommended 'Ladybugs of Alberta" by John Alcorn, 2007, as the only popular guide for ladybugs in North America. Thought I'd try the easy way out first.
my lichen photos by genus - www.flickr.com/photos/29750062@N06/collections/7215762439...
my photos arranged by subject, e.g. mountains - www.flickr.com/photos/29750062@N06/collections
Antelopes. Kgalagadi Transfrontier Park/ Kalahari Desert. South Africa. Nov/2019
Blue Wildebeest
The blue wildebeest (Connochaetes taurinus), also called the common wildebeest, white-bearded wildebeest, or brindled gnu, is a large antelope and one of the two species of wildebeests. It is placed in the genus Connochaetes and family Bovidae, and has a close taxonomic relationship with the black wildebeest. The blue wildebeest is known to have five subspecies. This broad-shouldered antelope has a muscular, front-heavy appearance, with a distinctive, robust muzzle. Young blue wildebeest are born tawny brown, and begin to take on their adult colouration at the age of 2 months. The adults' hues range from a deep slate or bluish gray to light gray or even grayish brown. Both sexes possess a pair of large curved horns.
The blue wildebeest is a herbivore, feeding primarily on short grasses. It forms herds which move about in loose aggregations, the animals being fast runners and extremely wary. The mating season begins at the end of the rainy season and a single calf is usually born after a gestational period of about 8.5 months. The calf remains with its mother for 8 months, after which it joins a juvenile herd. Blue wildebeest are found in short-grass plains bordering bush-covered acacia savannas in southern and eastern Africa, thriving in areas that are neither too wet nor too arid. Three African populations of blue wildebeest take part in a long-distance migration, timed to coincide with the annual pattern of rainfall and grass growth on the volcanic soil short-grass plains where they can find the nutrient-rich forage necessary for lactation and calf growth
Source: Wikipedia
Gnu-de-cauda-preta
O gnu-de-cauda-preta (Connochaetes taurinus) ou boi-cavalo-de-cauda-preta [2] (em inglês, blue wildebeest, "gnu-azul") é uma das duas espécies de gnu, encontrada no Leste e Sul da África e contando com pelagem cinzenta, mas face e a cauda negras.
O gnu é um herbívoro que se alimenta principalmente de gramíneas curtas. Estes animais são corredores rápidos e extremamente cautelosos. A estação de acasalamento começa no final da estação chuvosa e um único filhote geralmente nasce após um período gestacional de cerca de 8,5 meses. O bezerro permanece com sua mãe por 8 meses, após o qual se junta a um rebanho juvenil. Os gnus são encontrados nas planícies de grama curta que margeiam savanas de acácia cobertas de arbustos no sul e no leste da África, prosperando em áreas que não são nem muito úmidas nem muito áridas. Três populações africanas de gnus participam de uma migração de longa distância, programada para coincidir com o padrão anual de chuva e crescimento de grama nas planícies de grama curta do solo vulcânico, onde podem encontrar a forragem rica em nutrientes necessária para a lactação e crescimento de bezerros
Fonte: Wikipedia (tradução livre)
Kgalagadi Transfrontier Park
Kgalagadi Transfrontier Park is a large wildlife preserve and conservation area in southern Africa. The park straddles the border between South Africa and Botswana and comprises two adjoining national parks:
•Kalahari Gemsbok National Park in South Africa
•Gemsbok National Park in Botswana
The total area of the park is 38,000 square kilometres (15,000 sq mi). Approximately three-quarters of the park lies in Botswana and one-quarter in South Africa. Kgalagadi means "place of thirst." [1] In September 2014, more than half of the Botswana portion of the park was sold for gas-fracking
The park is located largely within the southern Kalahari Desert. The terrain consists of red sand dunes, sparse vegetation, occasional trees, and the dry riverbeds of the Nossob and Auob Rivers. The rivers are said to flow only about once per century. However, water flows underground and provides life for grass and camelthorn trees growing in the river beds. The rivers may flow briefly after large thunderstorms
Source: Wikpedia
Parque Transfronteiriço do Kgalagadi
O Parque Transfronteiriço de Kgalagadi é uma grande área de preservação e conservação da vida selvagem no sul da África. O parque fica na fronteira entre a África do Sul e o Botsuana e compreende dois parques nacionais adjacentes:
• Parque Nacional Kalahari Gemsbok na África do Sul
• Parque Nacional Gemsbok no Botsuana
A área total do parque é de 38.000 quilômetros quadrados (15.000 milhas quadradas). Aproximadamente três quartos do parque ficam no Botsuana e um quarto na África do Sul. Kgalagadi significa "lugar de sede". Em setembro de 2014, mais da metade da parte do parque em Botsuana foi vendida por fracking a gás
O parque está localizado em grande parte no sul do deserto de Kalahari. O terreno consiste em dunas de areia vermelha, vegetação escassa, árvores ocasionais e leitos secos dos rios Nossob e Auob. Diz-se que os rios fluem apenas uma vez por século. No entanto, a água flui no subsolo e fornece vida para as árvores que crescem nos leitos dos rios. Os rios podem fluir brevemente após grandes tempestades
Fonte: Wikipedia (traduçã livre)
Kalahari Desert
The Kalahari Desert is a large semi-arid sandy savanna in Southern Africa extending for 900,000 square kilometres (350,000 sq mi), covering much of Botswana, parts of Namibia and regions of South Africa.
It is not to be confused with the Angolan, Namibian and South African Namib coastal desert, whose name is of Khoekhoegowab origin and means "vast place"
Kalahari is derived from the Tswana word Kgala, meaning "the great thirst", or Kgalagadi, meaning "a waterless place"; the Kalahari has vast areas covered by red sand without any permanent surface water
Source: Wikpedia
Deserto do Kalahari
O Kalahari, Calaari ou Calaári é um deserto localizado na África Austral, com cerca de 900.000 km² abrangendo partes de Angola, do Botswana, Namíbia e África do Sul.
O nome é derivado de uma palavra em tsuana[2] e significa "a grande sede"
Derivada da palavra Kgalagadi, significa o lugar da a grande sede (kgala - sede; gadi - lugar). A formação do deserto é devida, principalmente, a corrente marítima fria de Benguela[carece de fontes], que atua na costa sudoeste da África, condensando o vapor de água que vai em direção ao continente, fazendo com que as massas de ar cheguem mais secas ao mesmo. O Kalahari possui vasta área coberta por areia avermelhada sem afloramento de água em caráter permanente. Porém Kalahari não é um deserto verdadeiro. Partes dele recebem mais de 250 mm de chuva mal distribuída anualmente e possuem bastante vegetação. É realmente árido somente no sudoeste (menos de 175 mm de chuva ao ano), fazendo do Kalahari um deserto de fósseis. As temperaturas no verão do Kalahari vão de 20 a 40°C. No inverno, o Kalahari tem um clima seco e frio com geada à noite. As baixas temperaturas do inverno podem ficar abaixo de 0°C. O clima no verão em algumas regiões do Kalahari pode alcançar 50°C (por isso algumas tribos bosquimanas se recolhem nos momentos mais quentes do dia).
Fonte: Wikipedia
PROJECT:
The Morning Line
PHOTO CREDIT:
Aranda\Lasch
Schematic Model
30" L x 15" H x 15" D
2008
produced by Aranda\Lasch
Museum Board, Paint
Custom hand-drawn strategic visualizations on the digital heritage field in Europe, by order of DEN and Europeana
Antelopes. Kgalagadi Transfrontier Park/ Kalahari Desert. South Africa. Nov/2019
Blue Wildebeest
The blue wildebeest (Connochaetes taurinus), also called the common wildebeest, white-bearded wildebeest, or brindled gnu, is a large antelope and one of the two species of wildebeests. It is placed in the genus Connochaetes and family Bovidae, and has a close taxonomic relationship with the black wildebeest. The blue wildebeest is known to have five subspecies. This broad-shouldered antelope has a muscular, front-heavy appearance, with a distinctive, robust muzzle. Young blue wildebeest are born tawny brown, and begin to take on their adult colouration at the age of 2 months. The adults' hues range from a deep slate or bluish gray to light gray or even grayish brown. Both sexes possess a pair of large curved horns.
The blue wildebeest is a herbivore, feeding primarily on short grasses. It forms herds which move about in loose aggregations, the animals being fast runners and extremely wary. The mating season begins at the end of the rainy season and a single calf is usually born after a gestational period of about 8.5 months. The calf remains with its mother for 8 months, after which it joins a juvenile herd. Blue wildebeest are found in short-grass plains bordering bush-covered acacia savannas in southern and eastern Africa, thriving in areas that are neither too wet nor too arid. Three African populations of blue wildebeest take part in a long-distance migration, timed to coincide with the annual pattern of rainfall and grass growth on the volcanic soil short-grass plains where they can find the nutrient-rich forage necessary for lactation and calf growth
Source: Wikipedia
Gnu-de-cauda-preta
O gnu-de-cauda-preta (Connochaetes taurinus) ou boi-cavalo-de-cauda-preta [2] (em inglês, blue wildebeest, "gnu-azul") é uma das duas espécies de gnu, encontrada no Leste e Sul da África e contando com pelagem cinzenta, mas face e a cauda negras.
O gnu é um herbívoro que se alimenta principalmente de gramíneas curtas. Estes animais são corredores rápidos e extremamente cautelosos. A estação de acasalamento começa no final da estação chuvosa e um único filhote geralmente nasce após um período gestacional de cerca de 8,5 meses. O bezerro permanece com sua mãe por 8 meses, após o qual se junta a um rebanho juvenil. Os gnus são encontrados nas planícies de grama curta que margeiam savanas de acácia cobertas de arbustos no sul e no leste da África, prosperando em áreas que não são nem muito úmidas nem muito áridas. Três populações africanas de gnus participam de uma migração de longa distância, programada para coincidir com o padrão anual de chuva e crescimento de grama nas planícies de grama curta do solo vulcânico, onde podem encontrar a forragem rica em nutrientes necessária para a lactação e crescimento de bezerros
Fonte: Wikipedia (tradução livre)
Kgalagadi Transfrontier Park
Kgalagadi Transfrontier Park is a large wildlife preserve and conservation area in southern Africa. The park straddles the border between South Africa and Botswana and comprises two adjoining national parks:
•Kalahari Gemsbok National Park in South Africa
•Gemsbok National Park in Botswana
The total area of the park is 38,000 square kilometres (15,000 sq mi). Approximately three-quarters of the park lies in Botswana and one-quarter in South Africa. Kgalagadi means "place of thirst." [1] In September 2014, more than half of the Botswana portion of the park was sold for gas-fracking
The park is located largely within the southern Kalahari Desert. The terrain consists of red sand dunes, sparse vegetation, occasional trees, and the dry riverbeds of the Nossob and Auob Rivers. The rivers are said to flow only about once per century. However, water flows underground and provides life for grass and camelthorn trees growing in the river beds. The rivers may flow briefly after large thunderstorms
Source: Wikpedia
Parque Transfronteiriço do Kgalagadi
O Parque Transfronteiriço de Kgalagadi é uma grande área de preservação e conservação da vida selvagem no sul da África. O parque fica na fronteira entre a África do Sul e o Botsuana e compreende dois parques nacionais adjacentes:
• Parque Nacional Kalahari Gemsbok na África do Sul
• Parque Nacional Gemsbok no Botsuana
A área total do parque é de 38.000 quilômetros quadrados (15.000 milhas quadradas). Aproximadamente três quartos do parque ficam no Botsuana e um quarto na África do Sul. Kgalagadi significa "lugar de sede". Em setembro de 2014, mais da metade da parte do parque em Botsuana foi vendida por fracking a gás
O parque está localizado em grande parte no sul do deserto de Kalahari. O terreno consiste em dunas de areia vermelha, vegetação escassa, árvores ocasionais e leitos secos dos rios Nossob e Auob. Diz-se que os rios fluem apenas uma vez por século. No entanto, a água flui no subsolo e fornece vida para as árvores que crescem nos leitos dos rios. Os rios podem fluir brevemente após grandes tempestades
Fonte: Wikipedia (traduçã livre)
Kalahari Desert
The Kalahari Desert is a large semi-arid sandy savanna in Southern Africa extending for 900,000 square kilometres (350,000 sq mi), covering much of Botswana, parts of Namibia and regions of South Africa.
It is not to be confused with the Angolan, Namibian and South African Namib coastal desert, whose name is of Khoekhoegowab origin and means "vast place"
Kalahari is derived from the Tswana word Kgala, meaning "the great thirst", or Kgalagadi, meaning "a waterless place"; the Kalahari has vast areas covered by red sand without any permanent surface water
Source: Wikpedia
Deserto do Kalahari
O Kalahari, Calaari ou Calaári é um deserto localizado na África Austral, com cerca de 900.000 km² abrangendo partes de Angola, do Botswana, Namíbia e África do Sul.
O nome é derivado de uma palavra em tsuana[2] e significa "a grande sede"
Derivada da palavra Kgalagadi, significa o lugar da a grande sede (kgala - sede; gadi - lugar). A formação do deserto é devida, principalmente, a corrente marítima fria de Benguela[carece de fontes], que atua na costa sudoeste da África, condensando o vapor de água que vai em direção ao continente, fazendo com que as massas de ar cheguem mais secas ao mesmo. O Kalahari possui vasta área coberta por areia avermelhada sem afloramento de água em caráter permanente. Porém Kalahari não é um deserto verdadeiro. Partes dele recebem mais de 250 mm de chuva mal distribuída anualmente e possuem bastante vegetação. É realmente árido somente no sudoeste (menos de 175 mm de chuva ao ano), fazendo do Kalahari um deserto de fósseis. As temperaturas no verão do Kalahari vão de 20 a 40°C. No inverno, o Kalahari tem um clima seco e frio com geada à noite. As baixas temperaturas do inverno podem ficar abaixo de 0°C. O clima no verão em algumas regiões do Kalahari pode alcançar 50°C (por isso algumas tribos bosquimanas se recolhem nos momentos mais quentes do dia).
Fonte: Wikipedia
PROJECT:
Aggregations
PHOTO CREDIT:
James Harris?
Exhibit: Johnson Trading Gallery
Location: Design Miami/ 2008, Miami, Florida, USA
'LoLux Commons' Urban Housing Studio Jonas Coersmeier at University of Pennsylvania, Weitzman School of Design, Fall 2020. Student: Danny Ortega
Culturomics: Boy vs Girls. Plots of the frequency of the words "girls and boys", from 1900 to 2000 in a search of six billion words in five million books. Digitized from via the Google University consortium and plot From Google's N-gram viewer. ngrams.googlelabs.com/ Riff from Kevin Kelly's Technium www.kk.org/thetechnium/
PROJECT:
Design Miami/ Temporary Structure
PHOTO CREDIT:
James Harris
Design Miami/ Temporary Structure
Aranda\Lasch in collaboration with EventStar
Miami, Florida, USA
2008
PROJECT:
The Morning Line
PHOTO CREDIT:
Aranda\Lasch
by Matthew Ritchie with Aranda\Lasch and Arup AGU
Commissioned by Thyssen-Bornemisza Art Contemporary
Seville, Spain, 2008
PROJECT:
Aggregations
PHOTO CREDIT:
James Harris?
Exhibit: Johnson Trading Gallery
Location: Design Miami/ 2008, Miami, Florida, USA
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
Whirligig Beetles Aggregation at McIver Landing on the Deep River in Gulf NC
Beetles who struggle for safety in the daytime from fish and other predators by massing together. A scare will send them spinning out in circles like a whirligig. But they quickly reform into one group for safety. The ones in the center are mostly well fed females then well fed males, other females, and on the fringe mostly unfed males. In a large group the fish will usually learn to let them be.
video: www.youtube.com/watch?v=PjMQMWg_X9o&feature=c4-overvi...
for more info
link.springer.com/article/10.1007%2FBF00299362#page-1
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.
CT Arzneimittel GmbH, Lengeder Str. 42 a, 13407 Berlin, Tel.: 0 30 /40 90 08-0, Fax: 0 30/ 40 90 08-21, www.ct-arzneimittel.de
Bezeichnung des/r Präparats/e ASS-CT 100 mg TAH Tabletten
Wirkstoff Acetylsalicylsäure Anwendungsgebiete Zur Thrombozytenaggregationshemmung bei: instabiler Angina pectoris – zusätzl. zur Standardtherapie, akuter Myokardinfarkt als Teil der Standardtherapie, Reinfarktprophylaxe, nach arteriellen, gefäßchirurgischen o. interventionellen Eingriffen (z. B. nach ACVB, bei PTCA), Vorbeugung TIA u. Hirninfarkten, nachdem Vorläuferstadien aufgetreten sind. Hinweis: aufgr. niedr. Dosierung nicht wirksam b. Schmerzzuständen. Warnhinweise keine Apothekenpflichtig Stand: Februar 2008
Zu Risiken und Nebenwirkungen lesen Sie die Packungsbeilage und fragen Sie Ihren Arzt oder Apotheker.
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
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.
PROJECT:
Design Miami/ Temporary Structure
PHOTO CREDIT:
James Harris
Design Miami/ Temporary Structure
Aranda\Lasch in collaboration with EventStar
Miami, Florida, USA
2008
PROJECT:
Aggregations
PHOTO CREDIT:
James Harris?
Exhibit: Johnson Trading Gallery
Location: Design Miami/ 2008, Miami, Florida, USA
Calibration of a fertilizer bucket used for MCH flake application. Lake Wenatchee State Airport, Washington.
Photo by: Connie Mehmel
Date: May 8, 2015
Photo credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection, Wenatchee Service Center.
Source: Connie Mehmel collection. Wenatchee, Washington.
Note: MCH is an anti-aggregation pheromone used to protect trees from attack by the Douglas-fir beetle.
For more information 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
601 TuringTower Studio at University of Pennsylvania, School of Design, Fall 2014. Student: Jae geun Ahn
Cradle is called an aggregation of mirror-polished, stainless steel spheres, and the sculpture operates structurally like an enormous Newton’s Cradle — the ubiquitous toy that can be found on the desktops of corporate executives. Each ball is suspended by a cable from a point on the wall and locked in position by a combination of gravity and neighboring balls. As a whole, the balls imply an articulated surface suggestive of foam or sea life, said Ball Nogues Studio representatives.
See: Cradle 2- detail
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..