Ocean Acidification - Part 2, Solutions

00:10:39
https://www.youtube.com/watch?v=2KLT9vFVOmc

Resumen

TLDRLa vidéo traite de l'acidification des océans et l'importance de comprendre et de surveiller ce phénomène pour préserver la vie marine. Elle met en avant le rôle des écloseries d'huîtres qui, confrontées à des problèmes de taux de mortalité dus à un faible pH, ont commencé à surveiller la chimie carbonique de l'eau pour mieux gérer leurs opérations. Grâce à des collaborations avec des organismes communautaires et des institutions comme l'Oregon State University, des capteurs de pH sont installés pour recueillir des données essentielles. La vidéo souligne également l'importance du rôle des communautés locales et des générations futures dans la préservation des océans, ainsi que le potentiel des plantes aquatiques, comme les herbiers marins, à contrebalancer les effets de l'acidification. En fin de compte, la vidéo encourage l'espoir et l'action collective pour protéger l'environnement marin.

Para llevar

  • 🌊 L'acidification des océans est un problème mondial causé par l'augmentation de CO2.
  • 🦪 Les écloseries d'huîtres souffrent de la baisse du pH affectant la formation des coquilles.
  • 🤝 La collaboration avec des universités et communautés locales est essentielle.
  • 📊 Des capteurs de pH surveillent les changements chimiques de l'eau.
  • 🌿 Les herbiers marins peuvent aider à atténuer les impacts acides en absorbant le CO2.
  • 🔄 Les écloseries utilisent le tamponnage pour améliorer leurs résultats en production.
  • 📚 L'éducation et la sensibilisation sont cruciales pour les générations futures.
  • 🗺️ Les efforts locaux sont nécessaires pour peindre un tableau global de l'océan.
  • 🔬 La recherche vise à mieux comprendre les interactions environnementales.
  • 💪 L'action collective peut engendrer des changements positifs pour les océans.

Cronología

  • 00:00:00 - 00:05:00

    L'oratrice partage son lien personnel avec les animaux des coquillages et leur vie marine, soulignant l'importance de se connecter à la vie océanique même à un jeune âge. Elle critique l'approche de ne rien faire face aux problèmes climatiques et marins, et affirme sa conviction en la capacité collective de l'humanité à faire une différence. Un exemple concret est le partenariat avec Surf Rider Foundation et l'Université d'État de l'Oregon pour surveiller le pH océanique, un projet qui implique les communautés locales dans la collecte de données essentielles.

  • 00:05:00 - 00:10:39

    L'accent est mis sur l'acidification des océans qui pose un défi majeur et nécessite la collaboration entre scientifiques et communautés locales. L'étude souligne aussi l'importance de la chimie carbonique pour la survie des huîtres dans les écloseries, illustrée par l'exemple du succès du buffering pour remédier à ce problème. Les programmes de recherche explorent comment les herbiers marins, en absorbant le CO2, pourraient atténuer l'acidification océanique, surtout dans le Nord-Ouest Pacifique, un des points de vulnérabilité régionaux majeurs aux changements de l'acidité océanique.

Mapa mental

Mind Map

Preguntas frecuentes

  • Quel est le rôle de l'Oregon State University dans cette initiative ?

    Ils analysent les données collectées par les unités de surveillance du pH pour fournir des informations sur la chimie carbonique des océans.

  • Pourquoi l'acidification des océans est-elle un problème pour les écloseries d'huîtres ?

    Une faible pH réduit la disponibilité du carbonate nécessaire à la formation des coquilles d'huîtres, entraînant des échecs lors de la production de larves.

  • Comment les communautés locales peuvent-elles aider à lutter contre l'acidification des océans ?

    En installant des unités de surveillance du pH et en collectant des données, les communautés locales peuvent contribuer à peindre un tableau complet de la situation.

  • Quelle solution a été adoptée par les écloseries pour contrer l'acidification des océans ?

    Elles utilisent des techniques de tamponnage pour augmenter le pH de l'eau, améliorant ainsi la production de graines d'huîtres.

  • Qu'est-ce que l'acidification des océans ?

    C'est une diminution du pH de l'océan due à l'absorption par l'océan du dioxyde de carbone excédentaire de l'atmosphère.

  • Pourquoi les herbiers marins sont-ils importants dans cette lutte ?

    Ils absorbent le CO2, ce qui peut aider à atténuer les impacts de l'acidification dans certaines zones.

  • Quel est l'objectif de la recherche sur les estuaires de la côte nord-ouest du Pacifique ?

    Comprendre comment les herbiers marins peuvent atténuer les impacts d'un faible pH et de l'acidification des océans.

  • Quel est l'impact potentiel de l'acidification des océans sur la société humaine ?

    Elle peut affecter la biodiversité marine et les industries dépendantes des ressources océaniques.

  • Quel est le rôle de la prochaine génération dans la lutte contre ce problème ?

    Prendre des mesures à l'échelle locale pour surveiller la santé des océans et sensibiliser aux enjeux.

  • Pourquoi la collaboration est-elle essentielle pour résoudre le problème de l'acidification des océans ?

    Les scientifiques seuls ne peuvent pas couvrir toutes les zones ; la participation des communautés locales est cruciale.

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    I connected to seashell animals as a
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    child that was my connection to the fact
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    that there was life in the ocean this is
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    evidence of animals that live here and
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    evidence of this huge you know life uh
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    underneath the sea and that to me was a
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    personal connection at a young
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    [Music]
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    age I think that uh to put our heads in
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    the sand um and to say that we have um
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    huge climate change issues or huge ocean
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    issues that we can't solve is not
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    bettering our Humanity in any way and
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    that's why I do the work I do I'm
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    inspired to make a difference I'm
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    inspired that people can make a
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    difference and I believe in the
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    collective power of the human
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    race I think that when we put our heads
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    together to do something good that we
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    can really do dramatic things for the
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    betterment of our oceans and our
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    waves
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    so Surf Rider Foundation is partnering
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    with uh a number of different Community
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    groups in Oregon State University put
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    out some different pH monitoring units
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    so we install these in different special
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    places we're targeting Marine reserves
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    and protected areas we collaborate with
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    Oregon State University because they are
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    the chief scientists we simply assist
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    them in changing and swapping out the
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    units each month and we send it back to
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    Oregon State University they download
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    the data they read the data and they
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    feed us back the
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    [Music]
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    results ocean notification is one of
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    these big challenges and what we need is
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    as much information as much
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    understanding as we have about what's
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    happening out there but we can't do it
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    alone as scientists we can only go to so
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    many places and we only know so many
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    places to paint a complete picture we
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    really have to enlist the help of folks
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    who are out there on the coast who know
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    something about changes and who knows
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    how to get to
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    sites
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    measuring changes in our ocean
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    environment it it's not something that
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    only three people very specialized phds
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    in the world can do it's something that
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    all of us can have a hand in and that's
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    a really important message because the
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    information that we're getting back is
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    shared by people and they know exactly
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    where it came
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    from I want my kids to walk down the
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    beach into CC shells I want them to
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    understand that you don't have to be in
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    the ocean to know that there's life
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    there that we depend on and I believe
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    that we can make a difference and we can
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    connect people to making a change in the
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    in the
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    [Music]
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    world I was brought in uh the end of
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    2007 uh Suka the owner here was having a
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    lot of trouble producing larae it's
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    normal to have some problems in a
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    production season and an oyster Hatchery
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    but these were persistent problems month
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    after month after month of
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    mortality well at the time we had no
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    idea what the problem was we thought um
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    bacteria was a major problem at that
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    point we were not thinking about
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    Carbonic chemistry at all you know we
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    never did in our industry so by accident
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    basically we finally stumbled upon the
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    fact that carbonate chemistry was
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    affecting our our initial results in the
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    Hatchery so when we spawned oysters they
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    were dramatically impacted by low
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    PH when the pH the ocean drops there's
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    less carbonate available for oysters to
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    form their shelves and so that's more
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    stress on the animal which can result in
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    catastrophic failures for
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    laring in 2009 we started doing some
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    pretty good data collection with Oregan
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    State they could tell us a lot about the
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    carbonate chemistry of the water and
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    that really helped us to pin down the
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    Carbonic chemistry
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    better so with oyster Hatchery there's
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    been a number of uh steps which they've
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    now come to essentially be more
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    resilient to ocean acidification one of
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    those uh is just simply the monitoring
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    and so understanding what the chemistry
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    of the water coming into the the
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    Hatchery is one of the key things that
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    they've done is buffer what we say
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    buffer the tanks and and so I equate
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    that to uh like we call it the Tums
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    approach and they're basically putting
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    an an acid in the water and what that's
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    doing is raising the ph and increasing
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    the saturation State and that has
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    changed or improved their uh oyster seed
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    production tremendously and restored a
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    large proportion of that to what it was
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    prior to the seed failures they were
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    having uh and they would continue to
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    have without that
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    buffering so I hope that people as we
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    move
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    forward I I don't want anybody else to
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    see the impacts that we have but they're
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    going to and I hope that we can be
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    proactive enough to to start working on
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    it before it gets too
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    late
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    um so when we look at Ocean chemistry it
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    it might seem like wow there's nothing
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    that we can really do locally as
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    Citizens as communities to to change
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    that but when we look at a a really
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    productive estr and you see a vibrant
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    green seagrass beds well those those uh
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    those plants are actually taking up CO2
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    as we speak what we TR we're trying to
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    do as a research Community is trying to
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    understand hey when and where are they
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    drawing down so much CO2 that they can
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    actually uh amarate some of the changes
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    that are already happening and the early
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    studies that are coming back it's really
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    promising it looks like they they have a
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    really sizable imprint fingerprint on
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    the the carbon dioxide chemistry that
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    we're seeing on a day-to-day
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    basis so my PhD research is focused on
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    how seagrass and macro algae in Pacific
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    Northwest estuaries might be able to
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    mitigate impacts of low PH or ocean
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    acidification and so I've been
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    monitoring eelgrass communities and also
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    pH and carbon dioxide in four different
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    estuaries along the Pacific Northwest
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    and particularly focusing in the South
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    slooh Estuary in CZ
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    Bay the Pacific Northwest is
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    particularly vulnerable to ocean
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    acidification uh we've seen the
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    progression of OA here happening much
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    quicker than in other places in the
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    world and we also have this really tight
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    coupling between the estuaries and
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    oceans on the on the west coast and so
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    for those reasons I think it's really
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    important that we kind of lead the way
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    as as far as research and understanding
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    and managing our Coastal ecosystems for
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    ocean
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    acidification the knowledge that can be
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    gained here in the Pacific Northwest
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    would then hopefully be applicable to
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    other places in the
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    world the fact that you know seag
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    grasses could in some respect save the
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    day uh when it comes to ocean
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    acidification that's what you know keeps
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    me
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    going
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    about a year or so ago I took a Marine
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    Science class at my high
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    school and the way that we started to
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    get into that was we each had kind of
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    our
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    individual um end of the semester
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    projects and the project that I decided
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    to do was about how the ocean Acts as a
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    carbon sink and I also learned about how
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    an excess of carbon dioxide can lead to
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    ocean
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    acidification I've heard about it before
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    but I wasn't entirely aware of how
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    serious the issue actually was and this
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    really interested me so I came to the
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    Marine Science Center to learn more
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    about it and that's when I started
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    becoming more aware about the effects
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    that ocean pacification not only has in
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    the environment but can also have in
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    terms of basic Human
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    Society so that's when I started getting
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    into the Marine Science Program at Port
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    offord I helped deploy the pH sensor
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    down at Rocky Point along with a team of
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    three other people by helping the deploy
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    the sensor I feel like that definitely
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    helped us learn more about this issue
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    and helped keep track of um what's going
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    on in our oceans I think my generation
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    through educ
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    through taking action in their local
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    communities on issues like this that
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    will be one of the best ways that they
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    can make a big
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    impact as long as people are keeping
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    track of what's going on in the oceans
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    and we're able and willing to take
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    action then there's still
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    hope
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    e
Etiquetas
  • acidification des océans
  • chimie carbonique
  • surveillance du pH
  • collaboration
  • communautés locales
  • écloseries d'huîtres
  • herbiers marins
  • éducation
  • action collective
  • environnement marin