Download Atlantica Oceanic

UAC Atlantica Facility is the first level of The Ancient Gods, Part One, the first expansion for Doom Eternal. The level is set on the UAC Atlantica, the UAC's oceanic climate and environmental research station, which secretly conceals the body of the Seraphim - the Doom Slayer is tasked with finding this being in order to free Urdak from the demons' control.

A very rare southern oceanic species in Ireland and Britain, where it is known from temperate rainforests in south west Ireland and a single ravine in North Wales. Mainly found on base rich bark on old Oaks but rarely also rock. An orange-brown isidiate species similar to Porina hibernica, Porina rosei and Coenogonium confusum. Porina atlantica differs from these species in the thicker and taller more branched isidia than these species, with a cortex which has numerous strongly projecting cells and the rough thallus surface with convex lumps.

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Based on the Bayesian isotopic niches, all five squid species were distributed mainly in subantarctic waters, with the exception of H. atlantica, which occupied subtropical waters (Fig. 2). Gonatus antarcticus and Taonius sp. B exhibited a wide distribution from subtropical to Antarctic water, throughout the time-series (Fig. 2). The isotopic niche area (SEAc) of most species were wider in 1984, indicating more generalist feeding niches in this particular year (Table 1). A larger SEAc was always associated with expansion of the niche at the limit of the distribution, e.g., to more northerly waters for Taonius sp. B, and to more southerly waters for Galiteuthis glacialis (Fig. 2).

Based on isotopic niches, all five squid species showed a broader range of habitat use or trophic levels in 1984. One explanation is that the El Nio event increased sea surface temperatures, reduced the primary productivity and hence the abundance of Antarctic krill12,13,14. This would explain the shifts in distribution as the squid were forced to become even more generalist and to exploit different size classes or more diverse prey35,36, leading to greater niche width. Another non-exclusive explanation based on the SAM index is that there was intensification of the westerly winds, as shown by previous studies, which may affect the distribution of prey if the oceanic fronts moved southwards7,52. Nevertheless, as predicted by Rodhouse (2013)34, our results demonstrate that there was no effect on squid distribution over the study-period, with the exception of Taonius sp. B.

Changes in distribution of cephalopods in response to environmental conditions, including El Nio events, have been noted in other regions. In north Atlantic and Arctic waters, both pelagic and benthic species (Todaropsis eblanae, Sepietta oweniana, Sepiola atlantica) are now found at much higher latitudes than before, connected to the increasing water temperatures21,53,54. Guerra et al. (2002)55 also reported the appearance of subtropical species (Alloteuthis africanus) in Galician waters attributed to an increase in sea surface temperature. Based on our results, ocean warming seems likely to benefit at least one of our study species, H. atlantica, but constrain another, M. longimana, the distribution of which is expected to shrink progressively further south.

According to our study, squid in the Southern Ocean will continue to retain or even increase in their importance in pelagic food webs. All the studied species except H. atlantica appeared to exploit a wide range of habitats, while maintaining a similar trophic level over time, despite changing environmental conditions (strong El Nio events, increasing sea surface temperature). Unsurprisingly, Histioteuthis atlantica, a subtropical species, should be favoured by ocean warming. Variability in the SAM, as well as in sea-ice extent is therefore unlikely to have major detromental impact on squid species in the Southern Ocean. This agrees with the hypothesis that generalist species with broad dietary niches and habitats are expected to be more resilient to environmental change65. Based on our results, ocean warming seems likely to benefit at least one of our study species, H. atlantica, but constrain another, M. longimana, as mention above. As H. atlantica is a warm water species32 with an expanding habitat, they may become more available to predators that breed further south, such as wandering albatrosses at South Georgia39. Similarly, M. longimana which prefers colder waters, might also experience greater predation from penguins, seals, whales and albatrosses if its distribution shifts even further south30,66.

As the first study to report long-term changes in nekton in the Southern Ocean, our results for these five squid species provide new clues as to how cephalopod communities may react to a changing environment. This response differed from species to species, regardless of their typical habitat (Antarctic, subantarctic or subtropical waters), or the prevailing environmental conditions. Understanding the scale of the impacts that El Nio might have on each species, and the influence of other environmental or biological drivers on distribution will be key to predicting their future roles in the food web. To conclude, the main cephalopod species in the diet of wandering albatrosses at South Georgia (M. longimana, G. glacialis, G. antarcticus, H. atlantica and Taonius sp. B) seem to have adapted well to past changes in environmental conditions and this high plasticity may well ensure their continued success.

We analysed 13C and 15N in five squid species: Moroteuthopsis longimana (former Kondakovia longimana), Taonius sp. B (Voss), Gonatus antarcticus, Galiteuthis glacialis and Histioteuthis atlantica. The selection was based on two criteria: (1) the five species together form the majority of squid consumed by our biological sampler, the wandering albatross (up to 87.0% of diet by mass)62, and (2) together, these five species reflect different water masses (Antarctic, subantarctic and subtropical) in the Southern Ocean43, which might show contrasting responses to past environmental changes.

The lithosphere divides into about 15 main plates and many smaller ones, some debated. If you live in California, you live where the Pacific plate scrapes along the North American plate, moving north. If you live in Washington, D.C., you live far from the boundary of the North American plate, which terminates in the middle of the Atlantic. I live on the western edge of the North American plate (in Seattle). The small oceanic Juan de Fuca plate dives under us. It has been locked in place for centuries. The earthquake that will bring Seattle down when the Juan de Fuca plate comes unstuck has become legendary before it even happens. We call it The Big One.

The airspace of the North Atlantic (NAT), which links Europe and North America, is the busiest oceanic airspace in the world. In 2012 approximately 460,000 flights crossed the North Atlantic and that volume of traffic continues to increase. Direct Controller Pilot Communications (DCPC) and ATS Surveillance are unavailable in most parts of the NAT Region. Aircraft separation, and hence safety, are ensured by demanding the highest standards of horizontal and vertical navigation performance/accuracy and of operating discipline.

Over the high seas, the lower limit of all NAT oceanic control areas is FL55. There is no upper limit. Airspace at and above FL55 is Class A controlled airspace and below FL55 it is Class G uncontrolled airspace.

The distribution pattern of vesicomyids reveals common features with the general distribution of seep fauna. As in the vesicomyids the majority of seep animal genera have wide, transoceanic distribution, with a near continental type of distribution [14]. For comparison, among obligate hydrothermal genera only 16% have transoceanic ranges [14] and 60% have very limited distribution occurring in only one hydrothermal region [45]. In addition, the hydrothermal fauna is mainly characterized by an oceanic pattern of distribution [14]. With respect to their tendency to occur near continents, vesicomyids also differ from bivalves of regular deep-sea habitats, which are mainly characterized by panthalassic distribution pattern [19]. Apart from that, there is no apparent latitudinal zonality in vesicomyids, such as a circum-tropical or high-latitude distribution pattern as documented for many regular deep-water animals. e24fc04721