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| Samia, Diogo S. M.; Bessa, Eduardo; Blumstein, Daniel T.; Nunes, José A. C. C.; Azzurro, Ernesto; Morroni, Lorenzo; Sbragaglia, Valerio; Januchowski‐hartley, Fraser A.; Geffroy, Benjamin. |
| In an increasingly anthropic world, humans have profound impacts on the distribution and behaviour of marine fishes. The increased human presence has modified fishesf antipredator behavioural responses, and consequently flight decisions, as a function of their changed perceptions of risk. Understanding how fish react to human presence can help identify the most vulnerable functional groups/species and estimate impacts caused by human disturbance. Shoal and body size are known to influence fish flight initiation distance (FID; the distance between the predator and prey when the prey begins to escape); however, few studies attempt to test the moderators of these relationships. Here, we present a comprehensive meta]analysis evaluating FID of fish in... |
| Tipo: Text |
Palavras-chave: Antipredator behaviour; Economic escape theory; Fish size; Flight initiation distance; Shoal size. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00500/61173/64775.pdf |
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| Mat, Audrey; Dunster, Gideon P.; Sbragaglia, Valerio; Aguzzi, Jacopo; De La Iglesia, Horacio O.. |
| Animals living in the intertidal zone are exposed to prominent temperature changes. To cope with the energetic demands of environmental thermal challenges, ectotherms rely mainly on behavioral responses, which may change depending on the time of the day and seasonally. Here, we analyze how temperature shapes crabs’ behavior at 2 different times of the year and show that a transition from constant cold (13.5°C) to constant warm (17.5°C) water temperature leads to increased locomotor activity levels throughout the day in fiddler crabs (Uca pugilator) collected during the summer. In contrast, the same transition in environmental temperature leads to a decrease in the amplitude of the daily locomotor activity rhythm in crabs collected during the winter. In... |
| Tipo: Text |
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| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00384/49507/50001.pdf |
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| Sbragaglia, Valerio; Lamanna, Francesco; Mat, Audrey; Rotllant, Guiomar; Joly, Silvia; Ketmaier, Valerio; De La Iglesia, Horacio O.; Aguzzi, Jacopo. |
| The Norway lobster, Nephrops norvegicus, is a burrowing decapod with a rhythmic burrow emergence (24 h) governed by the circadian system. It is an important resource for European fisheries and its behavior deeply affects its availability. The current knowledge of Nephrops circadian biology is phenomenological as it is currently the case for almost all crustaceans. In attempt to elucidate the putative molecular mechanisms underlying circadian gene regulation in Nephrops, we used a transcriptomics approach on cDNA extracted from the eyestalk, a structure playing a crucial role in controlling behavior of decapods. We studied 14 male lobsters under 12-12 light-darkness blue light cycle. We used the Hiseq 2000 Illumina platform to sequence two eyestalk... |
| Tipo: Text |
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| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00483/59476/62314.pdf |
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