Is Eating Shark and Other Large Fish Healthy for You?

Share:

As a top predator on the food chain, sharks and other large predatory fishes are known to accumulate toxins acquired from the fish and other prey they eat throughout the course of their lives. Several published papers indicating that shark meat contains high levels of methyl mercury, which is a potent neurotoxin that is often derived from industrial processes, notably cement manufacturing.

Results from a recent study conducted by MarAlliance team members indicated that over 80% of sampled sharks at Lighthouse Reef Atoll in Belize were above the US Environmental Protection Agency (EPA) advisory levels of 0.3 parts per million (ppm) and over 37% were above the Federal Drug Administration (FDA) and World Health Organisation (WHO) advisory levels of 1.0 ppm. Previous research on methyl mercury levels in Goliath grouper conducted in Belize by MarAlliance suggests that mercury levels are high in animals larger than 55 cm TL, with many exceeding the US governmental advisory criteria for human health (Evers et al. 2009).

Although alarming, these results are not wholly unsurprising. Sharks and groupers are apex predators that are known to biomagnify toxins, including heavy metals such as mercury, due to the many food chain linkages existing in the marine environment. In humans, absorption of large pulses of mercury and continued ingestion above the advisory levels impacts cognitive abilities, memory and depresses serotonin levels.

US EPA and FDA advisories suggest that pregnant women should avoid eating fish such as shark and king mackerel and not eat more than two meals of fish or shellfish of lower mercury content a week (no more than 12 ounces or two average meals (see: What You Need to Know About Mercury in Fish and Shellfish). Because of the potential for developmental problems, these advisories are considered too high for pregnant women and young children, with suggestions that 0.12 ppm would be the acceptable threshold for these groups.

Related News...

Belize

With 24 years of country-based experience working with large fish, turtles, fisheries, and the tourism sector in Belize, MarAlliance’s work with large iconic marine wildlife

Read More

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.