Fish stock assessment
Catch, effort and survey data are fitted in population models to estimate biomass and fishing mortality against reference points, with data-limited methods where records are short.
GCRI · Biodiversity Nexus
Ocean science provides the physics, chemistry and biology behind marine biodiversity risk: heat, acidity and oxygen in the water, the currents that connect habitats, and the stock assessments that tell fisheries managers how much can be taken. It links offshore change to coastal habitats and livelihoods.
Ocean science studies the physics, chemistry, biology and geology of the oceans and coasts. It informs aumento del nivel del mar, marea de tormenta, marine heatwaves, acidification and fisheries change, all of which affect coastal populations and trade. In biodiversity and nature, climate and hazards and oceans and coasts, ocean projections guide coastal defence, port planning and fisheries management. They link marine hazards to food security, shipping routes and coastal economies. The canonical description is on STEM Commons.
Catch, effort and survey data are fitted in population models to estimate biomass and fishing mortality against reference points, with data-limited methods where records are short.
Satellite sea surface temperature is compared with the local climatology to compute accumulated heat stress, which is related to observed bleaching and mortality.
Ocean circulation models release virtual larvae to estimate which reefs and nurseries supply others, informing the design of protected area networks.
Marine heat, sea temperature and chlorophyll over the Amazon Basin, from NASA GIBS. Each layer carries its own date.
El mapa interactivo requiere JavaScript; la lista de capas y las fuentes figuran a continuación.
Capas 3
Estado del océano, para esta página
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Último disponible
NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © colaboradores de OpenStreetMap (ODbL) · Natural Earth
Cargando las imágenes más recientes de la NASA.
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Ocean state, framed on the Amazon Basin.Productos satelitales y de modelos tal como los publica la NASA, cada uno con su propia fecha. Son indicadores, no evaluaciones de ningún lugar.
Capas y fechas
Datasets and records used by ocean and coastal science on this platform, with the role each plays and the label its values carry. Sources are listed in el registro de fuentes.
| Datos | Función | Etiqueta |
|---|---|---|
| OBIS marine occurrence records | Species distribution | OBSERVADO |
| Copernicus Marine and NOAA Coral Reef Watch | Temperature, heat stress and biogeochemistry | OBSERVADO |
| Fisheries catch and survey data | Stock assessment inputs | Estadísticas publicadas |
| Argo floats and moorings | Subsurface temperature and oxygen | OBSERVADO |
| Ocean circulation model output | Connectivity and projections | MODELADO |
Assembled from the Nexus Standards area profile Normas sobre riesgos de biodiversidad y naturaleza: the hazards it names, the sistemas and sectors that carry the loss, the controls that dampen it and the data that observe it. Choose the components, pick an initiating hazard and step through the cascade. The Map view places the run on an example geography with open data. Every coupling weight is a stated assumption you can change. A teaching model, not a forecast, an assessment or a certification. To model a place of your own choosing, open the full Constructor de sistemas.
Amenazas
Sistemas y acoplamientos
Controles
NS-0 Constitución y principiosNS-1 La UNI y el catálogo de artefactos (gramática v0.2: segmentos de dominio, sector, región y entorno)NS-3 UNI de registros de riesgo (gramática, tabla de correspondencia heredada, autoridad de asignación)NS-3b Perfil de metadatos de conjuntos de datos y productos (STAC, DCAT, PROV-O)NS-5 Norma de figuras, mapas y visualizaciones (con el kit UI/UX)NS-9 UNI contextuales (despliegues, instancias, instancias de programa)NS-11 Verificación y seguimiento (evidencia, atestaciones, observación de la conformidad de confianza cero)NRS-N5 Riesgo y resiliencia de la biodiversidad y la naturalezaNRS-H65 Familia de amenazas: transgresión de los límites planetarios (NHS-1 planet.boundary)NRS-H27 Familia de amenazas: biodiversidad y presión sobre las especies (NHS-1 eco.species)NRS-H26 Familia de amenazas: degradación de tierras y humedales (NHS-1 eco.land)NRS-H28 Familia de amenazas: cambios del estado climático (NHS-1 eco.climate-state)NRS-H64 Familia de amenazas: cambios de régimen de los ecosistemas (NHS-1 eco.regime-shift)Observación
Geografía de ejemplo
Models are checked against tide gauge records, altimetry and in situ profiles. Hindcasts of past storms and heatwaves test predictive skill.
| Verificación | Cómo se hace |
|---|---|
| Retrospective analysis | Stock assessments are rerun with recent years removed to test for systematic revision |
| Satellite against in-situ | Remotely sensed temperature and ocean colour are compared with mooring and ship data |
| Bleaching hindcast | Heat stress metrics are tested against surveyed past bleaching events |
Coastal processes at fine scale and ice sheet contributions to sea level remain uncertain. Observations of the deep ocean and polar seas are sparse.
The sectors ocean science for marine biodiversity touches and how strongly they depend on each other: what a study has to observe and model together.
Firma
La biodiversidad y sus socios
La biodiversidad aporta polinización y suelos a la alimentación (0.6), regulación de cuencas al agua (0.5) y transmisión zoonótica y medicamentos a la salud (0.4).
W · E · I · F · H · B
El modelo, sus supuestos, sus datos y su incertidumbre, en la forma en que un científico o un ingeniero los comprobaría. Las estructuras siguen métodos publicados. Los valores representados son ilustrativos, no hallazgos.
How a satellite or sensor record becomes evidence on ocean science for marine biodiversity, and where each step adds uncertainty.
Océanos y costas stewards ocean and coastal science for the Consortium and reviews how it is applied across platforms.
Process explorer · Process
9 steps·3 stages·1 gate
Proceso
The WMO flood forecasting manual and Early Warnings for All describe the chain from forecast to action, across EW4All’s four pillars.
Neutral outline of a published external standard or method, from its issuing body. Not a record of operation. Nexus does not perform, certify or approve any step shown. A gate or decision belongs to the party the source names.
serie Reports is the Consortium’s quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.
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