Blue Turtle Trophy From US – 2014
Rahmani Mraits Lyes Win Blue turtle Trophy From Us For His Actions for Oceans .
BlueTurtle is an environmental endeavor committed to ocean cleanup and preservation. We bringattention to the larger issue of polluted oceans worldwide and enable a lasting, comprehensivesolution through Education, Source Elimination and Cleanup. As a membership organization, weprovide sustainable benefits for our members, our cause and our program.
3 Incredible Inventions That Are Cleaning Our Oceans
https://www.huffingtonpost.com/entry/inventions-that-clean-the-ocean_us_5938be94e4b0b13f2c66ee01
Incroyable article :
Par Madame :
The research is clear: Man-made pollution is choking the oceans. From plastics that swirl around the world trashing beaches and killing marine animals, to chemical and oil spills that poison the sea, humans are to blame for much of the oceans’ deteriorating health.
Fortunately for our planet, some people have dedicated themselves to reversing mankind’s mistakes. In honor of World Oceans Day Thursday, HuffPost is highlighting groundbreaking inventions that were designed to take care of the sea.
While these solutions won’t entirely solve the world’s pollution problem ― real change can only happen when humans drastically change their consumption and plastic production habits ― the projects featured below are a good place to start.
1. This genius bucket that sucks trash and oil out of the sea
2. Boyan Slat’s ambitious plan to clean the Great Pacific Garbage Patch.
3. This technology that turns plastic waste into oil
Un «trou» grand comme trois fois la Bretagne découvert en Antarctique
Un « trou » au milieu de l’Antarctique qui préoccupe les scientifiques. Une étendue d’eau de 80.000 km², soit trois fois la superficie de la Bretagne, a été découverte le mois dernier en pleine banquise dans la mer de Weddell, une partie de l’océan Austral presque entièrement recouverte de glace.
Un phénomène que les chercheurs peinent à expliquer. « C’est un trou assez remarquable », pour le physicien de l’atmosphère Kent Moore, professeur à l’université de Toronto à Mississauga. « C’est comme si on avait mis un coup de poing dans la glace », explique-t-il au site Motherboard.
Si on n’avait pas de satellite, on ne saurait pas qu’il existe »
Ces étendues d’eau entourées de glace sont appelées polynies. Elles peuvent être formées par des remontées d’eau chaude à la surface (notamment à cause des courants marins) ou par des vents, mais on les observe généralement près du littoral, note Kent Moore, alors que le phénomène qui intrigue actuellement les scientifiques est localisé loin dans la banquise. « C’est à des centaines de kilomètres de la lisière. Si on n’avait pas de satellite, on ne saurait pas qu’il existe ». Autre particularité : sa taille. Les polynies peuvent habituellement atteindre quelques centaines de km², très loin de ce « monstre » de 80.000 km².
Une polynie avait déjà été observée dans la même zone de la mer de Weddell dans les années 1970, que les moyens de l’époque n’avaient pas permis d’étudier de près, selon Kent Moore. Après avoir disparu pendant quarante ans, le « trou » est revenu l’an dernier pour quelques semaines. Puis de nouveau cette année.
Parmi les possibles causes de la formation de ce phénomène, l’hypothèse du réchauffement climatique est avancée, mais les chercheurs ne souhaitent pas tirer de conclusions prématurées. Les possibles conséquences sur l’océan Austral et le climat de l’Antarctique ne sont pas non plus connues. A ce stade, « on ne comprend pas vraiment l’impact à long terme qu’auront les polynies », avoue Kent Moore.
LE POINT BLEU (ÉVÉNEMENT PROTECTION DE PLAGE) DAR BOUAAZZA CASABLANCA 2019
Le point bleu:
Événement ,causerie autour du thème « plage ,connaissances et protection »
Le point bleu se veut un évènement au bord de la plage constituer de :
- – Table ronde ouverture officiel de Evènement (présentations – explication du programme de l’évènement – désignation).
- – - Ateliers environnementale et sensibilisation sur la protection des plages et des cotes en générale. ( recyclage, coloriage pour enfants ) (débat et réponses aux questions pour adultes).
- – Ateliers Nettoyage de la plage (raisonnés) avec l’aide de spécialistes environnementale et océanographes.
- Atelier nettoyage de la plage sous-marine (par une équipe de travaux sous-marins) certifiée et professionnel.
Pour plus de details consulter le lien suivant : https://lyesocean.com
Le secret du jump whaling
Le jump whaling ou le saut de baleine, pourquoi les baleines sautent-elles hors de l’eau?
c’est surement pas pour nous dire Coucou.
les pros ont pu repondre sur le lien suivant :
le secret du jump whaling
Le secret du jump whaling
Café Vert. « Co-Concepteur et Co-Organisateur » Événement-Maroc
En tant que Co-Concepteur et Co-Organisateur avec Mr Anas Ouaziz « Président de l’association Vision Verte » au Maroc, je me permet de faire un petit résume sur le concept et la troisième édition du café vert » plantes de-polluantes » .
Un événement qui à pour principe de prendre Un café conviviale, autour d’un thème choisi au préalable , dans le domaine de l’environnement en présence de spécialistes dans le thème.
Pour cette troisième édition nous avons penser au thème » plantes de-polluantes » , cet événement à pris place dans une pépinière qui prévois un stand pour les plantes de-polluantes.
En coordination avec l’association Vision Verte à Casablanca Maroc , nous avons pu mettre en réalité cet événement, qui est le café vert, faire profiter les présents, de l’expérience de toute un chacun , échange, partage , connaissances, bon moments entre spécialistes et passionnés .
Je tiens a remercier le président de l’association vision verte « Mr Anas Ouaziz » pour son ouverture d’esprit et la bonne collaboration de Tous, pour la réussite de cet événement que j’ai pris vraiment très au sérieux.
1- Echanges de bibliographies , de livres , de recherche sur les plantes de-polluantes.
2- Visite effectuer au sein de la pépinière par des paysagistes pour l’ensemble des présents.
3- Reconnaissance des plantes et leurs apport anti pollution.
4- échange , nouvelles idées , protection de l’environnement
5- Intervention de tout les acteurs de l’événement
6- Conclusion et actions à développer après le Café vert.
Des membres ont pu concevoir des affiches eco , une décoration très spéciales » remerciements et respect »
MOLA MOLA
The ocean sunfish or common mola (Mola mola) is the heaviest known bony fish in the world. Adults typically weigh between 247 and 1,000 kg (545–2,205 lb). The speciesis native to tropical and temperate waters around the globe. It resembles a fish head with a tail, and its main body is flattened laterally. Sunfish can be as tall as they are long when their dorsal and ventral fins are extended.
Sunfish live on a diet consisting mainly of sea jellies, but because this diet is nutritionally poor, they consume large amounts to develop and maintain their great bulk. Females of the species can produce more eggs than any other known vertebrate,[3] up to 300,000,000 at a time.[4] Sunfish fry resemble miniature pufferfish, with large pectoral fins, a tail fin, and body spines uncharacteristic of adult sunfish.
Adult sunfish are vulnerable to few natural predators, but sea lions, killer whales, and sharks will consume them. Among humans, sunfish are considered a delicacy in some parts of the world, including Japan, Korea, and Taiwan. In the EU, regulations ban the sale of fish and fishery products derived from the family Molidae.[5] Sunfish are frequently caught in gillnets.
A member of the order Tetraodontiformes, which also includes pufferfish, porcupinefish, and filefish, the sunfish shares many traits common to members of this order. The ocean sunfish, Mola mola, is the type species of the genus.
Why Do Tuna and Dolphin Swim Together?
Yellowfin tuna (Thunnus albacares) and spotted dolphins (Stenella attenuata) often swim together in the eastern tropical Pacific (ETP). This fact has intrigued scientists for decades. A simple synopsis of current thinking about this issue is detailed below (with figures).
There have been two leading hypotheses about why it happens:
- finding lunch (the feeding hypothesis), and
- avoiding becoming lunch (the predation hypothesis)
And there have also been many questions:
- Why is it mostly yellowfin tuna and spotted dolphins who swim together?
- What are benefits for each species?
- Is the association necessary for either species?
- Is the association permanent for either species?
- Why does it usually happen in the ETP and not other oceans?
A new scientific paper spreads new light on dolphin-tuna associations (see abstract at bottom). Michael Scott, one of the SDRP co-founders and a senior scientist at the Inter-American Tropical Tuna Commission, along with his co-authors have examined the most prominent hypotheses by tying together three studies:
- a simultaneous tracking study of spotted dolphins and yellowfin tuna
- a study comparing their prey and daily foraging patterns, and
- a study of the oceanographic features correlated with the tuna–dolphin associations.
Study Findings:
The tuna follow the dolphins, but the association is neither permanent nor obligatory.
The benefits of the association are not based on feeding advantages. The dolphins and tuna tend to feed at different depths, at different times, and often on different prey.
The predation hypothesis was supported. One or both species likely gain protection from predators (such as large sharks) by forming large, mixed-species groups.
The yellowfin tuna also associate with spinner dolphins, although to a lesser degree than spotted dolphins. The difference is influenced by the different swimming depths of the two dolphin species and the oceanography.
These associations occur under quite specific oceanographic conditions.
How Oceanography Influences the Tuna-Dolphin Association
In most tropical oceans, there are warm, well-oxygenated waters at the surface called the mixed layer (Figure 1). Underneath lies a thick layer of colder, oxygen-poor water called the Oxygen Minimum Zone. Separating these two is the thermocline, a thin layer where the temperature drops rapidly.
What makes the ETP so unusual is that the warm mixed layer and the thermocline are much shallower than in most oceans (10 to 50 meters deep) and the Oxygen Minimum Zone is much thicker and more hypoxic.
As one travels westward in the ETP, the mixed layer and the thermocline deepen (Figure 2). When these depths reach about 50 meters, the association between the yellowfin tuna and spotted dolphin weakens).
These conditions are not unique to the ETP but also occur in a few places in other oceans – the nearshore waters of West Africa and the northern Indian Ocean, for example – and yellowfin tuna have been reported to swim with dolphins in these same waters. The association is most prevalent and consistent in the ETP however where these oceanic conditions are more widespread than in any other ocean.
How Swimming Depths Influence the Dolphin –Tuna Associations
The tuna-dolphin association appears to primarily form during the daytime. The tracking and food habits studies showed that spotted dolphins typically dive deep to feed on fishes and squids at night and travel 15-20 meters below the surface during the day (Figure 3). The yellowfin tuna swim near the thermocline during the day.
The spinner dolphin (Stenella longirostris) is another dolphin species found in the ETP associating with tuna. This is most likely because spinner dolphins, like the yellowfin tuna, join spotted dolphin herds during the day to reduce the risk of predation (by gaining safety in numbers). Interestingly, it was the spinner dolphins that helped explain where the tuna-dolphin association can occur.
Spinner dolphins swim near the surface, and there is usually a substantial vertical difference compared with the tuna swimming near the thermocline. In some areas where the thermocline is very shallow, the yellowfin tuna associate with spinner dolphins without any spotted dolphins.
This suggests that the differences in the swimming depths of the three species, along with the depth of the thermocline influence where the tuna dolphin association forms. As the thermocline deepens, the vertical distance between the yellowfin tuna and the dolphins becomes too great to maintain the association.
As shown in Figure 4, when the thermocline is shallow (less than 25 meters), the yellowfin tuna may associate with both dolphin species.
When the thermocline deepens, the vertical difference in swimming depth between the yellowfin tuna (near the thermocline) and spinner dolphins (near the surface) is too great to maintain the association directly. At this depth, however, spinner and spotted dolphins still may associate during surfacing to breath, but only the deeper-swimming spotted dolphins associate with yellowfin tuna (Figure 5).
When the thermocline sinks even deeper , the vertical difference in swimming depth between the yellowfin tuna (near the thermocline) and both spotted and spinner dolphins is too great to maintain an association (Figure 6).
This Open Access article may be obtained from the journal:
Scott, M.D, Chivers, S.J., Olson, R.J., Fiedler, P.C., Holland, K. 2012. Pelagic predator associations: tuna and dolphins in the eastern tropical Pacific Ocean Marine Ecology Progress Series 458:283–302, or by downloading a pdf.
Questions about the study can be addressed to Michael Scott at mscott@iattc.org
IMAGES FROM A WARMING PLANET
http://www.imagesfromawarmingplanet.net/
Pas de droits sur l'album 322054We must also learn to support others if we want to move forward
Ashley Cooper runs https://lnkd.in/gXkumw8 the world’s only climate change photo agency. His book « Images From a Warming Planet » is out now and available from https://lnkd.in/gjvuyyR An art photographic book with foreword by Jonathon Porritt, it contains the best 500 images from the last fourteen years documenting the impacts of climate change on every continent on the planet.
Good Work ! Big Up.
