common cuttlefish behavior

Distance chemoreception in the common cuttlefish, Sepia officinalis (Mollusca, Cephalopoda).

105, 525–532. The acclimation period took place in a total of six independent experimental life support systems (each tank with 22 L of volume) supplied by natural seawater filtered down to 0.35 μm and through UV radiation, under a semi-closed system.

While Vibrio species are sometimes found in the gastrointestinal tract of fish, the findings hint at an expanded range of organisms and body sites associated with Vibrio. Six of the eight adult cuttlefish released into a radio–acoustic positioning (VRAP) array left the area rapidly (≤ 45 min) whilst two remained for multiple days (≤ 9 days). Effects of ocean acidification on statolith calcification and prey capture in early life cuttlefish. Over the past centuries, atmospheric carbon dioxide (CO2) concentration has been increasing, with a current value of ∼ 415 ppm (NOAA, 2019), being the highest registered in the past 800,000 years. Defective skeletogenesis and oversized otoliths in fish early stages in a changing ocean.

Cuttlebones have long been used as an inexpensive dietary supplement for birds. The same model with Gamma family and log link function was used to analyze the Fulton’s index (with replicates and hatching date as random factors).
Holly L. Lutz and S. Tabita Ramírez-Puebla et al (2019) A Simple Microbiome in the European Common Cuttlefish, Sepia officinalis.

Earth Planet. The best model for each output was chosen according to the calculation of Akaike Information Criterion (AIC), i.e., the best model was the one that featured the smallest AIC. One of the mechanisms pointed for some behavioral disruptions when individuals are exposed to OA is the GABA-A receptor. Yet, it is still not fully understood what the consequences (e.g., metabolic and behavioral level) of this phenomenon on these organisms are. R. Soc. (2011), who also showed that cuttlefish early stages do not seem to be affected by near-future OA. Cubasch, U., Wuebbles, D., Chen, D., Facchini, M. C., Frame, D., Mahowald, N., et al. doi: 10.3354/ab00009, Lacoue-Labarthe, T., Martin, S., Oberhänsli, F., Teyssié, J.-L., Markich, S., Jeffree, R., et al. Available: https://www.esrl.noaa.gov/gmd/ccgg/trends/ (accessed June 09, 2019).

Effect of ocean acidification (ΔpH = 0.4) on the reaction to a conspecific visual stimulus of the common cuttlefish Sepia officinalis with 15–20 DAH. The other studies also suggest: (i) an increase in the frequency of premature hatching, (ii) an increase of pre-hatching critical partial pressure (Pcrit – the point at which the rate of oxygen consumption was no longer maintained independently of ambient pO2), (iii) a decrease in pre-hatching routine metabolic rate (Rosa et al., 2013), and (iv) decrease of perivitelline fluid pH (Hu et al., 2011). Citation: Holly L. Lutz and S. Tabita Ramírez-Puebla et al (2019) A Simple Microbiome in the European Common Cuttlefish, Sepia officinalis . bioRxiv 508853. Lab. Elegant cuttlefish – (Sepia elegans) – Found offshore in southern British waters. Effects of elevated CO2 on predator avoidance behaviour by reef fishes is not altered by experimental test water. Such findings are likely related with their nekton-benthic (and active) lifestyle, their adaptability to highly dynamic coastal and estuarine zones, and the already harsh conditions (hypoxia and hypercapnia) inside their eggs, which may favor the odds of the common cuttlefish recruits to endure the future acidified ocean through a possible pre-adaptation to these adverse conditions (Melzner et al., 2009; Hu, 2016). |, https://www.frontiersin.org/articles/10.3389/fphys.2019.00975/full#supplementary-material, https://www.esrl.noaa.gov/gmd/ccgg/trends/, Creative Commons Attribution License (CC BY). Noteworthy, 8.33% of the individuals exposed to hypercapnia presented the more severe type of reaction – type 3 (escape, attack and/or dorsal arms raised), whereas no individuals under normocapnia showed this type.

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