Scientists stumble upon hundreds of octopus moms in the deep sea

first_imgArticle published by Shreya Dasgupta Scientists have discovered a large nursery of octopus mothers some 3 kilometers (1.9 miles) deep in the Pacific Ocean.The octopuses are an unknown species of the genus Muusoctopus, a group of deep-sea octopuses generally known to lead solitary lives.The octopuses and their eggs will likely not survive, researchers say, because the animals are exposed to warmer temperatures than they are used to.But the presence of this large, “suicidal” population of octopuses suggests that there must be many more octopuses living in cooler, more livable crevices on the seafloor, researchers add. Scientists exploring a patch of the seafloor some 3 kilometers (1.9 miles) deep inside the Pacific Ocean have accidentally stumbled upon a large nursery of octopus mothers.A team of geochemists had gone looking for warm water seeping out of cracks on the Dorado Outcrop, an expanse of rocky seafloor made of cooled lava from an underwater volcano, located about 250 kilometers (155 miles) west of Costa Rica.The researchers did find the warm seeps, but they also discovered hundreds of purple octopuses clustered around those seeps, nearly all of them guarding a clutch of eggs. When the researchers returned the next year in 2014, they saw the same thing: octopuses with eggs huddled around a network of cracks on the rocky bottom.“The focus of [our] expeditions to Dorado Outcrop was to study a cool hydrothermal system. In doing so, we discovered this fascinating congregation of brooding octopuses,” Geoffrey Wheat of the University of Alaska Fairbanks, said in a statement. “To maximize the scientific return of the expeditions, we shared the video with deep-sea biologists, whose research led to this publication.”Footage of this unusual octopus assembly surprised Janet Voight, associate curator of zoology at the Field Museum in Chicago, U.S.“When I first saw the photos, I was like ‘No, they shouldn’t be there! Not that deep and not that many of them,’” Voight said. “To my knowledge there had been no reports of octopuses at this or comparable depths off between southern California and Peru.”One of the Muusoctopus octopuses studied by the researchers. Image by Phil Torres and Geoff Wheat.Voight and her colleagues identified the octopuses as an unknown species of the genus Muusoctopus, a group of deep-sea octopuses generally known to lead solitary lives. Deep-sea octopuses are also known to live in cold waters, rich in oxygen. But near the warm seeps, the octopuses were exposed to temperatures higher than they were used to.The warm water poses a problem for the octopuses, Voight and her colleagues write in a new study published in Deep Sea Research Part I. The warmer temperature increases the metabolic rate of octopuses, which makes them need more oxygen than the warm water can provide. In such a hostile environment, the octopuses are likely to meet a tragic end, the researchers say.None of the 186 octopus eggs that the researchers closely observed showed any evidence of a developing embryo, for example, and the octopuses themselves showed signs of severe stress.“As the embryos start to develop from fertilized cells, they’re increasing their oxygen use … and they’re confronted with less oxygen available,” Voight told Discover magazine. “I don’t see how they can possibly survive.”But it’s not all bleak. Octopus mothers breed just once, and spend the rest of their lives protecting their clutch of eggs until they hatch. Voight thinks that the presence of this large, “suicidal” population of octopus suggests that there must be many other octopuses living in cooler, more livable crevices and fissures on the seafloor that “replace the dying mothers and eggs that we can see.”Voight added that the scientists had sometimes observed octopus arms peeking out from the cracks in the rock, pointing toward signs of an unseen population.“Never would I have anticipated such a dense cluster of these animals at 3,000 meters depth, and we argue that the numbers of octopuses we see are simply the surplus population,” Voight said.Wheat added: “This is only the third hydrothermal system of its type that has been sampled, yet millions of similar environments exist in the deep sea. What other remarkable discoveries are waiting for us?”Three octopus arms emerge from a hole in the basalt rock of the Dorado Outcrop. Image by Anne Hartwell.Group of brooding octopuses on the ocean floor. Image by Phil Torres and Geoff Wheat.Citation:Hartwell, A.M., Voight, J.R. and Wheat, C.G. (2018) Clusters of deep-sea egg-brooding octopods associated with warm fluid discharge: An ill-fated fragment of a larger, discrete population? Deep Sea Research Part I: Oceanographic Research Papers. Animals, Biodiversity, Conservation, Deep Sea, Environment, Green, Happy-upbeat Environmental, Marine, Marine Animals, Marine Biodiversity, Marine Conservation, New Species, Oceans, Research, Species Discovery, Wildlife center_img Popular in the CommunitySponsoredSponsoredOrangutan found tortured and decapitated prompts Indonesia probeEMGIES17 Jan, 2018We will never know the full extent of what this poor Orangutan went through before he died, the same must be done to this evil perpetrator(s) they don’t deserve the air that they breathe this has truly upset me and I wonder for the future for these wonderful creatures. So called ‘Mankind’ has a lot to answer for we are the only ones ruining this world I prefer animals to humans any day of the week.What makes community ecotourism succeed? In Madagascar, location, location, locationScissors1dOther countries should also learn and try to incorporateWhy you should care about the current wave of mass extinctions (commentary)Processor1 DecAfter all, there is no infinite anything in the whole galaxy!Infinite stupidity, right here on earth.The wildlife trade threatens people and animals alike (commentary)Anchor3dUnfortunately I feel The Chinese have no compassion for any living animal. They are a cruel country that as we knowneatbeverything that moves and do not humanily kill these poor animals and insects. They have no health and safety on their markets and they then contract these diseases. Maybe its karma maybe they should look at the way they live and stop using animals for all there so called remedies. DisgustingConservationists welcome China’s wildlife trade banThobolo27 JanChina has consistently been the worlds worst, “ Face of Evil “ in regards our planets flora and fauna survival. In some ways, this is nature trying to fight back. This ban is great, but the rest of the world just cannot allow it to be temporary, because history has demonstrated that once this coronavirus passes, they will in all likelihood, simply revert to been the planets worst Ecco Terrorists. Let’s simply not allow this to happen! How and why they have been able to degrade this planets iconic species, rape the planets rivers, oceans and forests, with apparent impunity, is just mind boggling! Please no more.Probing rural poachers in Africa: Why do they poach?Carrot3dOne day I feel like animals will be more scarce, and I agree with one of my friends, they said that poaching will take over the world, but I also hope notUpset about Amazon fires last year? Focus on deforestation this year (commentary)Bullhorn4dLies and more leisSponsoredSponsoredCoke is again the biggest culprit behind plastic waste in the PhilippinesGrapes7 NovOnce again the article blames companies for the actions of individuals. It is individuals that buy these products, it is individuals that dispose of them improperly. If we want to change it, we have to change, not just create bad guys to blame.Brazilian response to Bolsonaro policies and Amazon fires growsCar4 SepThank you for this excellent report. I feel overwhelmed by the ecocidal intent of the Bolsonaro government in the name of ‘developing’ their ‘God-given’ resources.U.S. allocates first of $30M in grants for forest conservation in SumatraPlanet4dcarrot hella thick ;)Melting Arctic sea ice may be altering winds, weather at equator: studyleftylarry30 JanThe Arctic sea ice seems to be recovering this winter as per the last 10-12 years, good news.Malaysia has the world’s highest deforestation rate, reveals Google forest mapBone27 Sep, 2018Who you’re trying to fool with selective data revelation?You can’t hide the truth if you show historical deforestation for all countries, especially in Europe from 1800s to this day. WorldBank has a good wholesome data on this.Mass tree planting along India’s Cauvery River has scientists worriedSurendra Nekkanti23 JanHi Mongabay. Good effort trying to be objective in this article. I would like to give a constructive feedback which could help in clearing things up.1. It is mentioned that planting trees in village common lands will have negative affects socially and ecologically. There is no need to even have to agree or disagree with it, because, you also mentioned the fact that Cauvery Calling aims to plant trees only in the private lands of the farmers. So, plantation in the common lands doesn’t come into the picture.2.I don’t see that the ecologists are totally against this project, but just they they have some concerns, mainly in terms of what species of trees will be planted. And because there was no direct communication between the ecologists and Isha Foundation, it was not possible for them to address the concerns. As you seem to have spoken with an Isha spokesperson, if you could connect the concerned parties, it would be great, because I see that the ecologists are genuinely interested in making sure things are done the right way.May we all come together and make things happen.Rare Amazon bush dogs caught on camera in BoliviaCarrot1 Feba very good iniciative to be fallowed by the ranchers all overSponsoredlast_img read more

China seizes totoaba swim bladders worth $26 million, arrests 16

first_img Popular in the CommunitySponsoredSponsoredOrangutan found tortured and decapitated prompts Indonesia probeEMGIES17 Jan, 2018We will never know the full extent of what this poor Orangutan went through before he died, the same must be done to this evil perpetrator(s) they don’t deserve the air that they breathe this has truly upset me and I wonder for the future for these wonderful creatures. So called ‘Mankind’ has a lot to answer for we are the only ones ruining this world I prefer animals to humans any day of the week.What makes community ecotourism succeed? In Madagascar, location, location, locationScissors1dOther countries should also learn and try to incorporateWhy you should care about the current wave of mass extinctions (commentary)Processor1 DecAfter all, there is no infinite anything in the whole galaxy!Infinite stupidity, right here on earth.The wildlife trade threatens people and animals alike (commentary)Anchor3dUnfortunately I feel The Chinese have no compassion for any living animal. They are a cruel country that as we knowneatbeverything that moves and do not humanily kill these poor animals and insects. They have no health and safety on their markets and they then contract these diseases. Maybe its karma maybe they should look at the way they live and stop using animals for all there so called remedies. DisgustingConservationists welcome China’s wildlife trade banThobolo27 JanChina has consistently been the worlds worst, “ Face of Evil “ in regards our planets flora and fauna survival. In some ways, this is nature trying to fight back. This ban is great, but the rest of the world just cannot allow it to be temporary, because history has demonstrated that once this coronavirus passes, they will in all likelihood, simply revert to been the planets worst Ecco Terrorists. Let’s simply not allow this to happen! How and why they have been able to degrade this planets iconic species, rape the planets rivers, oceans and forests, with apparent impunity, is just mind boggling! Please no more.Probing rural poachers in Africa: Why do they poach?Carrot3dOne day I feel like animals will be more scarce, and I agree with one of my friends, they said that poaching will take over the world, but I also hope notUpset about Amazon fires last year? Focus on deforestation this year (commentary)Bullhorn4dLies and more leisSponsoredSponsoredCoke is again the biggest culprit behind plastic waste in the PhilippinesGrapes7 NovOnce again the article blames companies for the actions of individuals. It is individuals that buy these products, it is individuals that dispose of them improperly. If we want to change it, we have to change, not just create bad guys to blame.Brazilian response to Bolsonaro policies and Amazon fires growsCar4 SepThank you for this excellent report. I feel overwhelmed by the ecocidal intent of the Bolsonaro government in the name of ‘developing’ their ‘God-given’ resources.U.S. allocates first of $30M in grants for forest conservation in SumatraPlanet4dcarrot hella thick ;)Melting Arctic sea ice may be altering winds, weather at equator: studyleftylarry30 JanThe Arctic sea ice seems to be recovering this winter as per the last 10-12 years, good news.Malaysia has the world’s highest deforestation rate, reveals Google forest mapBone27 Sep, 2018Who you’re trying to fool with selective data revelation?You can’t hide the truth if you show historical deforestation for all countries, especially in Europe from 1800s to this day. WorldBank has a good wholesome data on this.Mass tree planting along India’s Cauvery River has scientists worriedSurendra Nekkanti23 JanHi Mongabay. Good effort trying to be objective in this article. I would like to give a constructive feedback which could help in clearing things up.1. It is mentioned that planting trees in village common lands will have negative affects socially and ecologically. There is no need to even have to agree or disagree with it, because, you also mentioned the fact that Cauvery Calling aims to plant trees only in the private lands of the farmers. So, plantation in the common lands doesn’t come into the picture.2.I don’t see that the ecologists are totally against this project, but just they they have some concerns, mainly in terms of what species of trees will be planted. And because there was no direct communication between the ecologists and Isha Foundation, it was not possible for them to address the concerns. As you seem to have spoken with an Isha spokesperson, if you could connect the concerned parties, it would be great, because I see that the ecologists are genuinely interested in making sure things are done the right way.May we all come together and make things happen.Rare Amazon bush dogs caught on camera in BoliviaCarrot1 Feba very good iniciative to be fallowed by the ranchers all overSponsored Conservation, Critically Endangered Species, Endangered Species, Environment, Fish, Illegal Fishing, Illegal Trade, Marine, Marine Animals, Oceans, Traditional Chinese Medicine, Vaquita, Wildlife, Wildlife Trade, Wildlife Trafficking Article published by Shreya Dasguptacenter_img Chinese customs officials have confiscated 444 kilograms (980 pounds) of totoaba swim bladders, estimated to be worth about $26 million.The ongoing Chinese investigation also led to the arrest of 16 people known to be part of a major totoaba trafficking syndicate.The illegal totoaba fishery has spelled doom not just for the totoabas themselves, but also for the vaquita, the world’s smallest and rarest porpoise, also found only in the Gulf of California. Chinese customs officials have confiscated 444 kilograms (980 pounds) of swim bladders harvested from totoaba, a critically endangered fish, estimated to be worth about $26 million.The totoaba (Totoaba macdonaldi) is a large marine fish that lives only in the Gulf of California, Mexico. Its dried swim bladders, also called maws, have been dubbed “aquatic cocaine” because of the high prices they fetch in mainland China and Hong Kong, with large maws reportedly earning up to $47,000 in local black markets, according to the investigative NGO Elephant Action League (EAL).Apart from the seizures, the latest Chinese undercover operation, named “SY608,” which involved several raids carried out across cities in Guangdong and Guangxi, also led to the arrest of 16 people. These individuals are part of one of the main totoaba trafficking syndicates, according to conservation group WildAid.“Though the investigation is still ongoing, preliminary results show the syndicate would purchase the totoaba swim bladders in Mexico then transport them through multiple transit points using suitcases before entering [China] to be sold illegally,” WildAid said in the statement.Mexico banned totoaba fishery in 1975 after totoaba catches declined drastically. But illegal fishing continues because of the high demand for totoaba swim bladders in China, where it is incorrectly believed to treat fertility and circulatory problems. In April this year, Mexican authorities arrested two Chinese nationals who were attempting to smuggle hundreds of dried totoaba swim bladders in suitcases.The illegal totoaba market has spelled doom for the vaquita (Phocoena sinus), the world’s smallest and rarest porpoise, also found only in the Gulf of California. The vaquita gets entangled in gillnets meant for totoabas, which has led to its population collapsing to only 12 individuals.“For many years China was not aware of the illegal trade in totoaba bladders,” WildAid CEO Peter Knights said in the statement. “But when alerted, they stopped open trade and now they are taking down smuggling rings. Let’s hope their decisive action can help the remaining vaquita porpoises that are literally on the brink of extinction.”NOAA Fisheries picture from 1992 showing a vaquita, bottom, captured as bycatch along with a totoaba in Sonora, Mexico. Image by NOAA.last_img read more