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Uma ilha com mais espécies de peixes é necessariamente mais estável?

A resposta é mais complexa do que parece.

Um estudo baseado em mais de uma década de monitoramento analisou comunidades de peixes recifais em quatro sistemas insulares do Atlântico Sudoeste. Foram realizados 3.634 levantamentos subaquáticos, com o registro de 150 espécies.

Os resultados mostram que a área recifal e o isolamento influenciam não apenas quantas espécies vivem em cada ilha, mas também as diferenças entre comunidades de um local para outro e de um ano para o seguinte.

As ilhas menores e mais isoladas apresentaram comunidades menos ricas e mais estáveis durante o período analisado. Isso, porém, não significa que estejam mais protegidas contra impactos: uma menor diversidade de espécies pode reduzir a capacidade do ecossistema de compensar futuras perdas.

Leia o artigo completo no site do IntegraMar.

#IntegraMar #PeixesRecifais #IlhasOceânicas #BiodiversidadeMarinha #CienciaMarinha

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Novidade científica no laboratório BioRec! 🪸

Acesse o artigo publicado do Dr. Lucas Nobrega pelo link: https://doi.org/10.1080/00222933.2026.2715751

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São 4 anos de ONDA! 🌊

Quatro anos de ciência coletiva, feita por muitas mãos e por olhares atentos à conservação. De Fernando de Noronha à Ilha da Trindade, aprendemos que cuidar do oceano é um trabalho que ninguém faz sozinho.

Ao longo desse caminho, unimos diferentes esferas da governança, foram pesquisadores, gestores, comunidades, educadores, estudantes e instituições para pensar juntos em soluções para os problemas socioambientais das ilhas oceânicas. Cada expedição, cada roda de conversa, cada dado coletado por um cientista cidadão e cada sala de aula que virou laboratório ajudaram a tecer essa rede enorme de colaboração

Esse vídeo é um pedacinho dessa história e uma homenagem a todo mundo que fez parte dela. Obrigada por navegarem com a gente até aqui. 💙

Que venham muitas outras marés! 🐢🐠🏝️

Edição: @flaviazagury

Financiamento: @cnpq_oficial_2

Imagens: @flaviazagury @faysonmerege @rafa.mesquita @fabioborgesdoc @brunonoronha @biarangel.sharks @peld_iloc

Agradecimentos: @marinhaoficial @cnpq_oficial_2 @icmbionoronha @icmbio.grandesoceanicas @peld_iloc

#ONDA4Anos #IlhasOceânicas #CiênciaCidadã #FernandoDeNoronha #IlhaDaTrindade ConservaçãoMarinha EducaçãoAmbiental PELD Oceano

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Diving on Noronha’s reefs luckily often includes seeing a few sharks. This juvenile Caribbean reef shark (Carcharhinus perezii) was particularly curious and came over to check us out while we were busy with our transects.

We also noticed that it looked unusually skinny, although from a brief underwater encounter it’s hard to know why.

Reef sharks are important components of coral reef food webs, and healthy shark populations are often associated with reefs under lower fishing pressure and stronger protection. Their presence alone doesn’t necessarily mean a reef is healthy, but seeing them regularly is certainly a good sign. #coralreef #shark #underwaterphotography #brazil

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Remote and isolated oceanic islands such as Bermuda in the north Atlantic, and Trindade and Fernando de Noronha in Brazil are home to an unusual hybrid, but let’s begin with the parent species. I’ve seen and photographed many of those in Noronha. First parent is the Coney, Cephalopholis fulva, a small grouper closely associated with the reef, spending most of its time and feeding near the bottom.

The other parent, the Creole Fish, lives a very different life. Paranthias furcifer often swims well above the reef, feeding on zooplankton in the water column. This one came closer to the bottom to be cleaned by the Noronha endemic cleaner goby Elacatinus phthirophagus seen just below it.

The hybrids are so distinctive that they were once given their own taxonomic identity, Menophorus dubius, before their hybrid origin was recognized. But they don’t just look intermediate between the two parent species. Their behavior and feeding ecology are intermediate too. Here, one is swimming and feeding up in the water column, more like Paranthias.

And here’s another closer to the reef, more like Cephalopholis. Their diet reflects the same pattern, combining feeding strategies of both parent species.

A hybrid that is intermediate not only in appearance, but also in the way it lives. #ichthyology #explore #marinesciences

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Mais um ano recebendo o pessoal do @peld_iloc em Fernando de Noronha!

Sua equipe está realizando diversas pesquisas aqui na ilha e este já é mais um ano dessa parceria junto com a gente.

É uma troca constante de conhecimento e experiência.

Cada descoberta reforça o quanto a ciência e a preservação caminham juntas e o quanto Noronha merece esse cuidado.

Seguimos juntos, contribuindo para que esse paraíso continue sendo estudado e protegido! ❤️

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What does an ecological survey team bring underwater? Some essential field gear is less sophisticated than you might think. A surprising amount of it starts at the hardware store, then gets adapted to the job.

Our expedition brought researchers from several institutions together to contribute to a long term reef monitoring effort. Here’s what everyone brought into the field:

📏 Suzy brought a transect tape and homemade slates to record the crabs living in association with stony corals.

✏️ Alexia, proudly showing off her trick for not losing her precious pencil, conducted transects to survey reef fish communities.

📝 Lucas used an old but effective technique: a PVC pipe around his arm on which he can write underwater while conducting fish surveys.

📷 Tito carried the large photo quadrat. It keeps the camera at a consistent distance from the seafloor so photographs can be used to compare benthic communities.

🔨 Carla brought a hammer, chisel, and plenty of pre-labeled bags to collect stony coral samples for DNA and symbiotic algae analyses.

🐠 My job was to document which species we encountered and capture photographs that show the details needed for identification. For that, a good underwater camera setup was my most important piece of gear.

Different tools, different questions, and a lot of practical solutions that make field science possible.

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Conheça o Arquipélago de São Pedro e São Paulo! Um paraíso que poucos conhecem.

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I’m a little too late to hop on the “yes, but” trend, so I changed it up slightly to show how the underwater shots actually come to be.

Thanks to @coralreeffish for capturing these moments!

First up is Stegastes pictus, a Brazilian endemic damselfish that I really fell in love with while diving in Fernando de Noronha. I especially love all those little blue details.

Next up is the moray Muraena pavonina. I found three of them hanging out together in the same spot, which made for a pretty perfect photo opportunity. They’re especially common around northeastern Brazil and definitely among the most photogenic morays.

This was a really cool find: an undescribed Emblemariopsis blenny. These tiny fish live tucked into holes in coral rubble or live corals, which makes them very easy to swim straight past.

They’re signal blennies, which means the males use their dorsal fin as a visual signal, flashing it to attract mates.

#underwaterphotography #coralreef #biodiversity #brazil #expedition

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The Noronha cleaner goby (Elacatinus phthirophagus) is found only in Fernando de Noronha and Atol das Rocas. Gobies in this genus often have close associations with corals or sponges, but this species can be found living and setting up cleaning stations on both. Like other cleaner gobies, they make a living picking parasites and other unwanted passengers from visiting fishes, including some much larger than themselves.

One of the small but very charismatic Brazilian endemics we’ve been seeing here in Noronha! 🇧🇷🐠

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Como funciona um censo de vida marinha em ilhas isoladas do Brasil?

Na Ilha de Trindade, pesquisadores do programa PELD ILOC realizam um monitoramento ecológico contínuo de longa duração que funciona de forma semelhante a uma contagem populacional, identificando espécies de peixes e acompanhando suas características sob a água.

No Repórter Eco, a ecorrespondente Katharina Grisotti acompanha de perto o trabalho dos cientistas que transformam as ilhas oceânicas em referências de preservação. Por estarem distantes da interferência humana direta, essas regiões concentram ecossistemas preservados que ajudam a mensurar os impactos de fenômenos como El Niño, mudanças climáticas e alterações nos oceanos ao longo dos anos.

▶️ Assista ao programa completo no canal do Repórter Eco no YouTube
🔔 Ative as notificações e siga @tvcultura

#RepórterEco #TVCultura #SomosCultura #VidaMarinha

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This might be the best way to arrive with your gear for a scientific expedition.

Fernando de Noronha is one of the only places where a buggy is actually the main mode of transportation. And yes, one buggy really does fit the science gear, dive gear, and cameras for two researchers.

Kicking off our expedition here on the island. Follow along for more expedition content over the next few days! 🤿🔬

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