Azores Whale Lab - Cetacean Ecology Group

Twitter feed of the Azores Whale Lab - Cetacean Ecology Group, headed by Dr. Mónica A. Silva. Cetacean research in the North Atlantic for over 20 years.

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

This is the last post of @AzWhaleLab. In science, as in life, we follow strict ethics principles: honesty, integrity, respect, fairness, objectivity, responsibility, collaboration. This platform no longer follows or defends these principles. Find us on @azwhlab.bsky.social

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

On the 7th June, the Azores Whale Lab provided practical exercises on photo-id and bioacoustics to the Master’ students (University of the Azores). They had the opportunity to collect photo-id pictures of common dolphins and to acoustically detect and locate sperm whales

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

Our study on fin whale food talk is mentioned in this month's National Geographic portuguese edition, on an interesting article about fin whales seen off the coast of Portugal https://t.co/pBnRryKWvc @MiriamRomagosa @OkeanosUac

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

In the afternoon (11th of June), the @AzWhaleLab headed to the high school “Escuela Secundaria Manuel de Arriaga” to present our work on understanding and protecting whales in the region, led by our colleague Daviana Berkowitz-Sklar @Daviberkos @sergiperezjorge @OkeanosUac

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

On Tuesday morning (11th of June), the @AzWhaleLab joined the Eco-Encontros event at elementary school “Escola Básica Integrada da Horta (Faial)” for a fun and educational marine life art activity. @OkeanosUac @Daviberkos

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

A reduction of prey size would require greater compensation to reach whales’ average daily metabolic requirements

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

New paper on sperm whale reponses to changes in prey structure. In-situ foraging data was used to determine daily energy acquisition and to identify the minimum required foraging success rate and explore potential responses to environmental changes. Check the thread 🧵

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

The highest impact was on the decrease in prey size than on a reduction on prey size variability implying that foraging success rates are more sensitive to changes in average energy intake, than variability in energy intake.

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

Species showed some spatial or temporal partitioning, suggesting that species coexistence could play a key role in structuring the cetacean community in the region and in its ecological role. Thanks to @AzWhaleLab, Jérôme Spitz and Yann Planque at #Pelagis (@CNRS)

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

Niche overlaps occur mainly between species within the same guild, indicating some potential for trophic redundancy in the community.

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

Species were grouped into four trophic guilds, segregated mainly by trophic position (TP): low-TP guild with three zooplanktivore baleen whales, mid-TP guild with micronektivores, high-TP guild with micronekton and nekton consumers, and a cluster with false killer whales only.

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

Stable isotopes from 12 cetacean species were analysed. Isotopic niches are very diverse and suggest the use of diverse habitats and resources among species.

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

The @AzWhaleLab is happy to present the first description of the trophic structure of the cetacean community in the Azores, as revealed by their isotopic niches. Find the full study published in Frontiers in Marine Science here (Lebon et al., 2024): https://t.co/USt0xAqiDR

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

More information on IMMAs:

https://t.co/GYqEohWb2A

https://t.co/AAGvVg4hxF

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

The @AzWhaleLab contributes to the creation of an Important Marine Mammal Area (IMMA) for the Azores encompass within an initiative that has created 33 new IMMAs in the North East Atlantic Ocean and Baltic Sea and was led by the @IUCN Marine Mammal Protected Areas Task Force

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

The @AzWhaleLab is happy to announce a recent paper on the evolution of fin whale songs in the North Atlantic published in @eLife  @MiriamRomagosa: Romagosa et al., 2024: https://t.co/UUiLsELSpf). @OkeanosUac

[Azores Whale Lab - Cetacean Ecology Group @AzWhaleLab]

We just finished a mission to test the acoustic system boing developed by project OCEAN. @NavAwareness. Check out the official video of the mission: https://t.co/RpNIpfNEGH