Giant manta ray

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Scientific name

Mobula birostris

Family

Mobulidae

Size

7 meters (23 feet)

Lifespan

45 years

Did you know?

Mantas have the biggest brain-to-body ratio of all fish species studied to date, and they use a specialized blood vessel system to keep the brains warmer than the ambient temperature. The significance of the brain structure is still being studied, but the size and structure may be indicative of species with complex social behaviors.

About Giant manta rays

Highly intelligent and social creatures, giant manta rays in some regions spend their days in large groups and at cleaning stations in shallow waters and then move into deeper waters at night to feed. They are often found concurrently with whale shark aggregations, as both species feed on the highly concentrated zooplankton produced by fish and invertebrate spawning events. Mantas use a highly specialized filter-feeding apparatus that filters plankton from seawater as they swim. This apparatus allows larger particles to ricochet away from the gills into the stomach and resists clogging of unwanted items. In the western Central Atlantic Ocean, we found that their preferred habitats are mostly coastal in areas of high primary productivity, such as river outflows. Giant manta rays are among the least productive species of rays in terms of their reproductive output, and it is estimated that a single female may only produce 4-7 offspring in its lifetime. The valuable trade of their gill plates has led to increased demand for giant manta rays, and some fisheries have begun targeting them, where they were once only captured incidentally. Because of their low reproductive rate, the species would take a long time to recover from overexploitation.

Diet

Like whale sharks, giant manta rays are planktivores, feeding primarily on zooplankton such as krill, fish eggs and larvae, small shrimps, copepods, and crab larvae.

Distribution

Giant manta rays are found worldwide in tropical and temperate waters from the surface to 1,000 meters in depth.

Fun facts

What we think of as manta rays are actually all mobula rays. The entire genus Manta was reclassified to Mobula in 2017.

The filtering mechanism used by mantas is being studied as a way to treat wastewater or filtering of microplastics.

Giant manta ray photo gallery

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Asistente de comunicación (Internship)

MarAlliance es una organización internacional sin ánimo de lucro registrada en EE.UU., Belice, Panamá y Cabo Verde, cuyo objetivo es explorar, facilitar e inspirar cambios positivos para la fauna marina amenazada, especialmente tiburones y rayas, sus hábitats críticos y las comunidades humanas dependientes. Nuestra misión es amplia y ambiciosa, y trabajamos en tres idiomas y en siete países de tres regiones. Ante el declive de muchas poblaciones de megafauna marina, estas especies necesitan una voz fuerte, eficaz y con base científica que las represente para ayudar a los socios dependientes a dar forma a las estrategias y acciones de gestión y conservación para invertir el declive.

Resumen del puesto:

Buscamos a un becario (6 meses) proactivo, con conocimientos digitales y excelente capacidad de redacción y edición de textos, que apoye la creación de contenidos escritos de alta calidad y recursos multicanal para difundir el trabajo que MarAlliance realiza a través de sus plataformas en línea (sitio web, redes sociales, boletín, entre otras) y fuera de línea, y que interactúe con nuestro público externo para contribuir a nuestros objetivos generales de comunicación y marketing. El Asistente de Comunicación dependerá directamente del Coordinador de Comunicación y Marketing, y trabajará en estrecha colaboración con el resto del equipo para apoyarles en los elementos de comunicación de su trabajo.

Las funciones y responsabilidades incluirán, entre otras, las siguientes:

  1. Proporcionar apoyo creativo, editorial y operativo a los proyectos. 
  2. Apoyo en la organización, etiquetado y etiquetado del archivo fotográfico y gestión del archivo de vídeo.
  3. Gestión de la comunidad: Gestionar activamente los canales de medios sociales, así como identificar nuevas tendencias y oportunidades de colaboración. Generar reels y visuales.
  4. Apoyo en la redacción de artículos de blog (SEO) y contenido de boletines. 
  5. Ayudar a construir y desarrollar materiales, herramientas y acciones para campañas (online y offline).
  6. Ayudar en diferentes tareas relacionadas con la comunicación trabajando mano a mano con contratistas externos (desarrollador web, diseñador gráfico…) para mejorar el compromiso de las audiencias externas.
  7. Apoyo en la elaboración de informes de campañas y comunicaciones (Google Analytics, métricas de redes sociales, informes de marketing por correo electrónico).
  8. Como parte del Equipo de Comunicación de MarAlliance, apoyar al Coordinador de Comunicación y Marketing en cualquier otro proyecto de comunicación, coherente con las habilidades y experiencia del titular del puesto, en circunstancias no rutinarias.

Experiencia, conocimientos y aptitudes requeridos:

  1. Licenciatura en comunicación, periodismo, marketing o cualquier disciplina relacionada.
  2. Experiencia en comunicación digital o marketing.
  3. Pasión e interés por la naturaleza, la vida marina y la conservación.
  4. Capacidad demostrada para redactar y presentar comunicaciones creativas.
  5. Presencia y conocimientos de medios sociales y digitales.
  6. Capacidad para realizar múltiples tareas y detectar buenas historias.
  7. Capacidad para trabajar a distancia y cumplir los plazos establecidos.
  8. Conocimientos de diseño gráfico deseables, pero no necesarios.
  9. Conocimientos de edición de vídeo deseables pero no necesarios. 

Salario y prestaciones:

Estipendio durante 6 meses.

Idiomas:

Español, con fluidez en inglés

Localización:

Este contrato será a distancia dentro de las zonas horarias de América, flexible, a tiempo completo y desde casa con hasta un 10% de viajes ocasionales locales e internacionales.

Cómo presentar la candidatura:

Por favor, envíe su currículum, portfolio si lo tiene, y carta de presentación a info@maralliance.org con “MAR-CA_Apellido” en el asunto antes del 21 de febrero, 2024. No se admiten llamadas.

Communications Assistant (Internship)

MarAlliance is an international non-profit registered in the US, Belize, Panama and Cabo Verde that aims to explore, enable and inspire positive changes for threatened marine wildlife – notably sharks and rays – their critical habitats and dependent human communities. Our remit is broad and ambitious, and we work in three languages and across seven countries encompassed by three regions. In the face of declines in many populations of marine megafauna, these species need a strong, effective, and science-based voice to represent them to help dependent partners shape management and conservation strategies and action to reverse declines.

Position summary:

We are seeking for a proactive, digitally savvy Paid Intern (6 month) Communications Assistant with excellent writing and copy editing skills, who will support the creation of high-quality written content and multichannel assets to broadcast the work MarAlliance does through its online (website, social media, newsletter, among others) and offline platforms, and engage with our external audiences to contribute to our overall communications and marketing goals. The Communications Assistant will directly report consistently to the Communications and Marketing Coordinator, and work closely with the rest of the team to support them on the communications elements of their work.

Duties and responsibilities will include but are not limited to:

  1. Provide creative, editorial, and operational project support. 
  2. Support organizing, labeling and tagging the photo archive and video archive management.
  3. Community Management: Actively manage social media channels, as well as identify new trends and collaboration opportunities. Generate reels and visuals.
  4. Support with writing blog articles (SEO) and newsletter content. 
  5. Help build and develop materials, toolkits, and actions for (online and offline) campaigns.
  6. Assist in different communications-related tasks working hand in hand with external contractors (web developer, graphic designer…) to improve the engagement of external audiences.
  7. Support in campaign and communications reporting (Google Analytics, social media metrics, email marketing reports)
  8. As part of the MarAlliance Communications Team, support the Communications and Marketing Coordinator with any other communications projects, consistent with the skills and expertise of the post holder, in non-routine circumstances.

Experience, Knowledge, and Skills Required:

  1. Bachelor’s degree in communications, journalism, marketing or any related discipline.
  2. Experience working in digital communications and or marketing.
  3. Passion and interest for nature, marine life and conservation.
  4. Proven ability to write and deliver creative communications.
  5. Social Media and digital presence and knowledge.
  6. Ability to multitask and spot good stories.
  7. Capable of working remotely and meeting established deadlines.
  8. Graphic design skills are desirable but not required.
  9. Video editing skills are desirable but not required.

Salary and benefits:

Stipend for 6 month.

Language:

Spanish, with fluent English

Location:

This contract will be remote within the Americas time zones, flexible, full-time and home-based with up to 10% occasional local and international travel.

How to apply:

Please send your resume, portfolio if you have one, and cover letter to info@maralliance.org with “MAR-CA_Last name” in the subject line by 21st of February, 2024. No calls please.