Mueren delfines en el Golfo de México: el derrame petrolero sigue dejando huellas
La alta tasa de delfines muertos encontrados en Alabama y Misisipi han alertado a los ecologistas estadounidenses, quienes indican que la situación podría deberse al derrame de crudo ocurrido el año pasado en el Golfo de México, luego de que explotara una plataforma petrolífera de BP.
En lo que va del año se han encontrado 28 delfines sin vida en las ciudades de Misisipi y Luisina, mientras que en las aguas del Golfo de México se han hallado los cadáveres de 5 delfines bebes. La tasa resulta bastante alta si la comparamos con la registrada en el 2010. En todo el año se encontraron 89 ejemplares sin vida (solo en Misisipi y Luisiana).
Con información de INFORME 21
Tomado de Cubadebate
Los científicos han encontrado a cinco crías de delfines muertas en dos islas en la parte norte del golfo de México.
Esta cifra es alta y los especialistas aún no pueden establecer todavía las posibles razones del extraño fenómeno. Desde el inicio de 2011, 28 cadáveres de delfines de diferente edad han sido encontrados cerca de los estados de Misisipi y Alabama. El año pasado la cantidad de delfines muertos hallados alcanzó los 89.
El Instituto de Estudios de los Mamíferos Marinos empezó una investigación sobre la extraña situación en el golfo de México y según el director de la organización los científicos ya han tomado muestras de tejido de los animales para poder esclarecer las razones de su fallecimiento.
Pero algunos especialistas afirman que es consecuencia del vertido de crudo del verano del año pasado tras la explosión de una plataforma petrolera de British Petroleum en el golfo de México que cubrió una superficie de más de 205 kilómetros cuadrados con este combustible.
RT
Científicos están investigando cuál fue la causa de la muerte de 53 delfines en gestación que aparecieron en el Golfo de México y que aparecieron en las costas de Luisiana, Mississippi y Alabama. Pasarán meses para saber los resultados de laboratorio sobre la causa de los abortos espontáneos de los delfines, los nacimientos prematuros e incluso la muerte de los mamíferos adultos después del parto, dijo Blair Mase, coordinador de la investigación para la Administración Atmosférica y Oceanía Nacional. "Esto no es como CSI donde se saben los resultados al día siguiente, así no se trabaja desafortunadamente", dijo. Fuente: AP
Foto: AP
Terra.com
Para la CNN la situación....."ES MISTERIOSA"
Las crías de delfines fueron encontradas en las costas de Alabama y Mississippi (CNN).
- Las 24 crías de delfines, que estaban con un estado avanzado de descomposición, aparecieron en las costas del sur de EU
- Comparado con otros años, esta cifra es un número récord en encallamiento de delfines
- No se han encontrado muestras de petróleo en los delfines, aunque preocupa a científicos las consecuencias del derrame de petróleo de BP
(CNN) — Al menos 24 crías de delfín han aparecido este año sin vida en las costas de Alabama y Mississippi, en Estados Unidos, lo que alarmó a científicos y autoridades que monitorean la salud del Golfo de México.
Esta cifra de pequeños delfines sin vida es diez veces mayor del promedio registrado en esta época del año, además de que otros seis delfines adultos también llegaron sin vida a las costas de los estados sureños de Estados Unidos.
En enero de 2009 y 2010 no se reportaron encallamientos de crías, comparadas con las cuatro encontradas en enero, dijo el Instituto de Estudios de Mamíferos Marinos (IMMS, por sus siglas en inglés). Durante febrero de los años pasados sólo se encontró una cría.
Blair Mase, quien coordina la vigilancia de encallamiento de mamíferos de la Administración Nacional de Océanos y Atmósfera (NOAA, por sus siglas en inglés), dijo que “no es común encontrar a esta altura del año especímenes tan jóvenes. Cuando comparas las cifras, es un número bastante alto junto a los otros años”.
Esto ha sido llamado por la NOAA como un “evento de mortalidad inusual”, definido como encallamientos inesperados o una pérdida significativa en la población de cualquier mamífero marino.
Aunque los delfines mulares son de hecho la especie más común de animales encallados, por lo regular sucede en marzo, según Mase. “Recibimos reportes de hasta 700 encallamientos cada año”, dijo.
Han habido unos 13 eventos de muertes inusuales que involucraron a delfines en el Golfo de México desde 1991, explicó la investigadora, y añadió que los mamíferos son particularmente susceptibles a brotes de algas dañinas, enfermedades infecciosas, a cambios de temperatura y ambientales, así como al impacto de los humanos.
El IMMS dijo que ya elaboró la necropsia en un tercio de las 24 crías. La mayoría se encontraban en un estado avanzado de descomposición como para realizarles un estudio completo, pero se tomaron muestras de tejido para su estudio.
El instituto aún no tiene resultados concluyentes en las causas de muerte de los delfines.
Después de la explosión de la plataforma Deepwater Horizon en abril del año pasado, donde perdieron la vida 11 trabajadores y que causó el peor derrame de crudo en la historia de los Estados Unidos, ha habido una especial preocupación sobre su impacto al medioambiente.
A ninguno de los delfines se les encontró petróleo, y Mase dijo que las autoridades no están proporcionado información sobre la causa de la muerte de las crías.
Pero la principal preocupación es que la temporada de encallamientos aún está por comenzar, de acuerdo al IMMS.
“Desafortunadamente me parece que no es el finales de lo que estamos aún por ver”, señalo el instituto.
So far this year in the Gulf of Mexico, 53 total adult and infant dolphins reported dead. None of the dead adults were pregnant females. Their carcasses washed up in Louisiana, Mississippi and Alabama.
(photo above) Jamie Klaus, a research assistant at the Institute for Marine Mammal Studies in Gulfport, examines a dead dolphin on Horn Island off the Missississi coast on Tuesday 22 of february. (Submitted Photo/Institute for Marine Mammal Studies)
http://media.gulflive.com/mississippi-press-news/photo/dolphin-horn-islandjpg-fdae3aff02d7ec91.jpg
YA SON UNOS 60 DELFINES LOS QUE SE HAN ENCONTRADO MUERTOS EN ZONA DEL DERRAME DE BRITISH PETRÓLEUM
Blair Mase, coordinadora de la organización Redes del Sudeste de Mamíferos Marinos Varados (Southeast Marine Mammal Stranding Network) parte de la NOAA (Administración Oceánica y Atmosférica Nacional de EEUU) , dijo que de 48 DELFINES QUE SE HAN ENCONTRADO MUERTOS desde Panhandle (Florida) hasta Luisiana, 29 han sido muy tiernos (bebés). Su recuento no incluyó el delfín hallado muerto en la isla Singing River Island (datos del martes 22 de febrero de 2011).
53 delfines muertos en el Golfo de México: el derrame petrolero sigue dejando huellas
“Estamos tratando de determinar si las crías nacieron muertas”. Hay más cadáveres en Mississippi que en Alabama y Luisiana.
“Con el derrame de petróleo, es difícil precisar la causa de muerte”. “Estamos tratando de determinar qué está causando esto. Podría ser impacto causado por el hombre que incluye el derrame de petróleo, enfermedades infecciosas o biotoxinas.
MÁS DELFINES MUERTOS EN EL GOLFO DE MÉXICO
Feb. 22, 2011 – Los científicos han encontrado a cinco crías de delfines muertas en dos islas en la parte norte del golfo de México.
Esta cifra es alta y los especialistas aún no pueden establecer todavía las posibles razones del extraño fenómeno. Desde el inicio de 2011, 28 cadáveres de delfines de diferente edad han sido encontrados cerca de los estados de Misisipi y Alabama. El año pasado la cantidad de delfines muertos hallados alcanzó los 89.
El Instituto de Estudios de los Mamíferos Marinos empezó una investigación sobre la extraña situación en el golfo de México y según el director de la organización los científicos ya han tomado muestras de tejido de los animales para poder esclarecer las razones de su fallecimiento.
Pero algunos especialistas afirman que es consecuencia del vertido de crudo del verano del año pasado tras la explosión de una plataforma petrolera de British Petroleum en el golfo de México que cubrió una superficie de más de 205 km2 con este combustible.
Los científicos están investigando la causa de la muerte de 53 delfines en gestación que aparecieron en el Golfo de México y que aparecieron en las costas de Luisiana, Mississippi y Alabama.
Pasarán meses para saber los resultados de laboratorio sobre la causa de los abortos espontáneos de los delfines, los nacimientos prematuros e incluso la muerte de los mamíferos adultos después del parto, dijo Blair Mase, coordinador de la investigación para la NOAA-Administración Atmosférica y Oceanía Nacional.
“Esto no es como en la TV, esto no es como en CSI donde se saben los resultados al día siguiente, así no se trabaja desafortunadamente”, dijo.
Fuente: AP
Derrame British Petroleum Golfo México
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http://dailycaller.com/2011/02/24/scientists-scrutinize-rise-in-baby-dolphin-deaths/
NEW ORLEANS (AP) — Scientists are trying to figure out what killed 53 bottlenose dolphins — many of them babies — so far this year in the Gulf of Mexico, as five more of their carcasses washed up Thursday in Louisiana, Mississippi and Alabama.
It’s likely to be months before they get back lab work showing what caused the spontaneous abortions, premature births, deaths shortly after birth and adult deaths said Blair Mase, the National Oceanic and Atmospheric Administration’s stranding coordinator for the Gulf Coast.
“It’s not like CSI where the very next day they have the results in. It doesn’t work that way, unfortunately,” she said.
Calves and fetuses made up at least 85 percent of the deaths in Alabama, 60 percent or more of those in Mississippi and Florida and 20 percent in Louisiana, according to NOAA figures.
The Mississippi and Alabama deaths are in areas where bottlenose dolphins go to calve, said Moby Solangi, director of the Institute for Marine Mammal Studies in Gulfport.
Solangi said he’d never seen anything like the calf deaths, or found word of anything like it in 30 years of records from his area — Alabama, Mississippi and east Louisiana.
However, Mase said 68 dolphins that washed up in east Texas in March 2007 also included an unusually large number of calves. The bodies were too decomposed to find the cause, she said.
Although scientists are investigating whether the deaths are related to last year’s huge BP oil spill, Mase confirmed that toxins from oil or chemicals used to disperse it may be a less likely cause than cold or disease. That’s because only one species of dolphin — and no other kind of animal — is dying, and because the calf deaths appear concentrated in Mississippi and Alabama rather than Gulf-wide.
The dolphins found Thursday include three off Louisiana and one each off Mississippi and Alabama, NOAA spokeswoman Kim Amendola said. The bodies had not been retrieved, so ages and sizes were not known, she said.
Since Jan. 1, 19 dead dolphins have been found off Louisiana, 16 off Mississippi, 15 in Alabama and three in the Florida Panhandle. Mississippi and Alabama usually each see two to four dolphin strandings a month at this time of year, Mase said.
Solangi said only six of the 23 calves found by Wednesday in Mississippi and Alabama were in good enough condition for a necropsy, the animal version of an autopsy.
“We’ve collected tissues and sent them off to various laboratories for pathology and toxicology,” he said. “All we can tell is some of them may have been premature, some of them were stillborn and others may have just survived for a day or two and died.”
Dolphins usually calve in March and April, he said.
Mase said dolphin stranding reports have been unusually high since January 2010. Last winter’s deaths probably were caused by extreme cold, she said. “It was a very, very cold winter last year. We had a lot of turtle mortality, manatee mortality and dolphin mortality.”
The Deepwater Horizon exploded into flames on April 20 and sank four days later. The spill response brought crews out to look for oiled wildlife and to clean the remote areas where most strandings occur, Mase said.
Because those areas are remote, there’s no way to know the true numbers of dolphin strandings and deaths. “The number is not absolute — just a kind of barometer,” Mase said.
Read more: http://dailycaller.com/2011/02/24/scientists-scrutinize-rise-in-baby-dolphin-deaths/#ixzz1F5PsKqqp
Three baby dolphins were pinpointed Monday and a fourth was reported today by National Resource Advisory employees who are working with BP cleanup crews on the island.
Researchers with the IMMS are headed to the island now to take tissue samples and possibly remove the bodies back for studies.
These infant dolphins are among the 18 reported since January.
The four are also among the 28 total adult and infant dolphins reported since the beginning of the year. None of the dead adults were pregnant females.
The industry’s leading scientist on marine mammal strandings is concerned about these deaths.
Blair Mase, NOAA’s marine mammal stranding coordinator for the Southeast region, confirmed that the number of baby dolphin deaths is high.
She said the Institute for Marine Mammal Studies reports all its findings to her.
So far this calving season, 18 infant dolphins have either been stillborn or died shortly after birth.
“We’re definitely keeping a close eye on this situation,” Mase said. “We’re comparing this to previous years, trying to find out what’s going on here.”
She said this is the time of the year that she sees death in young dolphins, because it is the beginning of the birthing season. But really, the normal birthing season is a little later in the year, she said.
“We’re trying to determine if we do in fact have still births,” she said. There are more in Mississippi than in Alabama and Louisiana.
“With the oil spill, it is difficult,” she said. “We’re trying to determine what’s causing this. It could be infectious related. Or it could be non-infection.
“We run the gamut of causes,” she said, including human impact, which would include the oil spill; infectious disease and bio-toxins,
IMMS has been conducting necropsies on the baby dolphins and sharing the findings with Mase.
Read more about this story later today at sunherald.com. Reporter Karen Nelson and photo journalist Amanda McCoy are on Horn Island today and will be reporting exclusively on what’s happening on the island.
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Read more: http://www.sunherald.com/2011/02/21/2881134/baby-dolphin-deaths-spike-on-gulf.html##ixzz1F58CbcSD
Dead Baby Dolphins Washing up along Gulf Coast at 10 Times Normal Rate
By Karen Nelson
Biloxi Sun Herald
Baby dolphins, some barely 3 feet in length, are washing up along the Mississippi and Alabama coastlines at 10 times the normal rate of stillborn and infant deaths, researchers are finding.
The Sun Herald has learned that [18] young dolphins, either aborted before they reached maturity or dead soon after birth, have been collected along the shorelines.
The Institute of Marine Mammal Studies performed necropsies, animal autopsies, on two of the babies Monday. Moby Solangi, director of the institute, called the high number of deaths an anomaly and said it is significant, especially in light of the BP oil spill throughout the spring and summer last year.
Oil worked its way into the Mississippi and Chandeleur sounds and other bays and shallow waters where dolphins breed and give birth.
This is the first birthing season for dolphins since the spill.
Dolphins breed in the spring and carry their young for 11 to 12 months, Solangi said.
Typically in January and February, there are one or two babies per month found in Mississippi and Alabama, then the birthing season goes into full swing in March and April.
“For some reason, they’ve started aborting or they were dead before they were born,” Solangi said. “The average is one or two a month. This year we have 17, and February isn’t even over yet.” [Updated below, 18 dead baby dolphins reported]
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The Institute for Marine Mammal Studies has confirmed that a fourth baby dolphin has washed ashore on Horn Island, Mississippi….
These infant dolphins are among the 18 reported since January. The four are also among the 28 total adult and infant dolphins reported since the beginning of the year. None of the dead adults were pregnant females.
The industry’s leading scientist on marine mammal strandings is concerned about these deaths.
Blair Mase, NOAA’s marine mammal stranding coordinator for the Southeast region, confirmed that the number of baby dolphin deaths is high.
She said the Institute for Marine Mammal Studies reports all its findings to her.
So far this calving season, 18 infant dolphins have either been stillborn or died shortly after birth.
“We’re definitely keeping a close eye on this situation,” Mase said. “We’re comparing this to previous years, trying to find out what’s going on here.”
She said this is the time of the year that she sees death in young dolphins, because it is the beginning of the birthing season. But really, the normal birthing season is a little later in the year, she said.
“We’re trying to determine if we do in fact have still births,” she said. There are more in Mississippi than in Alabama and Louisiana.
“With the oil spill, it is difficult,” she said. “We’re trying to determine what’s causing this. It could be infectious related. Or it could be non-infection.
“We run the gamut of causes,” she said, including human impact, which would include the oil spill; infectious disease and bio-toxins,
IMMS has been conducting necropsies on the baby dolphins and sharing the findings with Mase.
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ALSO: Baby sperm whale found on Galveston beach, Houston Chronicle, February 23, 2011.
- Dead Baby Dolphins In Gulf Of Mexico: 5 More Found – Deaths News … 24 Feb 2011 … Scientists say five dead baby dolphins have been found on two islands … They report that 28 dolphins of all ages have been found dead in waters … washed up Thursday in Louisiana, Mississippi and Alabama. …. New Zealand’s deadliest Earthquake in 80 years struck in its second city, Christchurch, …
politifi.com/…/Dead-Baby-Dolphins-In-Gulf-Of-Mexico-5-More-Found-1669140.html - Scientists scrutinize rise in baby dolphin deaths – Mississippi …Dead Baby Dolphins In Gulf Of Mexico: 5 More Found GULFPORT, Miss. …
politifi.com/…/Scientists-scrutinize-rise-in-baby-dolphin-deaths-1670815.html – En caché - Four Dead Baby Dolphins Found in Mississippi Gulf – AOL Travel News 23 Feb 2011 … Bodies of baby dolphins have been discovered since Jan. … of coastline from Louisiana east across Mississippi to Gulf Shores, … One possible cause being looking at it in the dolphins deaths is the oil spill in the Gulf of Mexico after a BP … Top 5 Fast Food Cities in the U.S. [Reader's Digest] …
news.travel.aol.com › Travel Ideas and Interests – En caché - Scientists scrutinize rise in baby dolphin deaths – Yahoo! News 24 Feb 2011 … The Mississippi and Alabama deaths are in areas where bottlenose … The bodies had not been retrieved, so ages and sizes were not known, she said. Since Jan. 1, 19 dead dolphins have been found off Louisiana, … Scientists scrutinize rise in bottlenose dolphin deaths in Gulf of Mexico; BP oil … …
news.yahoo.com/s/ap/20110224/ap…/us_dead_dolphins – En caché - Dead Baby Dolphins In Gulf Of Mexico: 5 More Found 23 Feb 2011 … Scientists say five dead baby dolphins have been found on two islands in … They report that 28 dolphins of all ages have been found dead in waters off … Four Dead Baby Dolphins Found in Mississippi Gulf – AOL Travel News …. and of people in some parts of Louisiana and Alabama who are suffering …
www.huffingtonpost.com/…/dead-baby-dolphins-in-gul_n_827590.html – En caché - Scientists Scrutinize Rise In Baby Dolphin Deaths – News Story … 24 Feb 2011 … The Mississippi and Alabama deaths are in areas where bottlenose … The bodies were too decomposed to find the cause, she said. … 1, 19 dead dolphins have been found off Louisiana, … PIQUA: 4 Of The 5 City Commissioners Named In A Recall …. Scientist Finds Gulf Bottom Still Oily, Dead …
www.whiotv.com/news/26985283/detail.html – En caché - IMMS – News 21 Feb 2011 … GULFPORT — Four baby dolphins lay dead in the sand on the south side … The numbers for carcasses of all ages of dolphins found in the two …. The bodies of 26 infant and stillborn dolphins have been … of coastline from Louisiana east across Mississippi to Gulf Shores, Alabama, officials said. …
www.imms.org/Article_2011_Feb_21CalvesStrand.php – En caché - Gulf Shores News and Weather – Gulf Shores Rentals 25 Feb 2011 … … many of them babies — so far this year in the Gulf of Mexico, as five more of their carcasses washed up Thursday in Louisiana, Mississippi and Alabama. …. NEW ORLEANS (AP) – The bodies of five more dead dolphins have been …
www.gulf-sands.com/news.asp – En caché – Similares - 01 – News Page – WDAM – Channel 7 – Serving Hattiesburg, Laurel … 25 Feb 2011 … The Following is a Press Release from the City of Hattiesburg. …. 2011 2:24 PM ET NEW ORLEANS (AP) – The bodies of 5 more dead dolphins have been reported on the Gulf Coast. …. (AP) – Scientists have found four dead baby dolphins on Horn Island in the Mississippi Gulf of Mexico. …
www.wdam.com/Global/category.asp?C=8389 – Similares - Dead dolphins in Gulf – The News Herald : Homepage 23 Feb 2011 … (AP) — Scientists say five dead baby dolphins have been found on two islands in the northern Gulf of Mexico, adding to what … tally of dead dolphins in recent months off Mississippi and Alabama. … They report that 28 dolphins of all ages have been found dead in waters …. NWS Panama City – Fair …
www.newsherald.com › News -Posted by Jim at Thursday, February 24, 2011 www.desdemonadespair.net/
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By Leigh Coleman and Steve Gorman; Editing by Jerry Norton
Thu Feb 24, 2011BILOXI, Mississippi (Reuters) – The death toll of dolphins found washed ashore along the U.S. Gulf Coast since last month climbed to nearly 60 on Thursday, as puzzled scientists clamored to determine what was killing the marine mammals.
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Yesterday, Scientists probe dolphin death rise
Scientists are trying to figure out what killed 53 bottlenose dolphins – many of them babies – so far this year in the Gulf of Mexico, as five more of their carcasses washed up on Thursday in Louisiana, Mississippi and Alabama. Skip related content uk.news.yahoo.com/21/20110225/tsc-scientists-…Escribió Malcolm Allison
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