Juniper Publishers-Oceanography Open Access Journal

  Juniper Publishers -  Journal of Oceanography Opinion Climate change is not an impending event, it has already arrived. Its extent is unclear, but notions of an impending or present mass extinction abound. Global warming is tempered by our seas, where more than a third of the planet's carbon is stored. These oceans, enormous sinks of carbon and home to vast and diverse life forms, will transform from a preserver of climatic balance to a destroyer of it. Barring a radical reduction of emissions, we will see at least four feet of sea-level rise and possibly ten by the end of the century. Climate change appears to be the most pressing collective action problem of modern times. Global coordination initiatives - from Kyoto to Paris -have not, to date, resulted in an appreciable reduction of emissions or in any discernable shift, globally, our economic system. Fundamentally, human perceptions of water, fish and nature generally has been through the lens of a resource. This paradig...

  Juniper Publishers -  Journal of Oceanography Short Communication The Automatic Identification System (AIS) is a protocol imposed by the International Maritime Organization (IMO) for all vessels larger than 300 gross tons or carrying passengers. Generally, organizations use this protocol to identify activities done by vessels during a period of time, but due to the large amount of data, this process needs to be focused on limited periods of time or specific areas. Regular relational databases, such as Postgres, which is a common free relational database to store large data sets, does not keep up with billions of points generated by AIS messages. On the other hand, there is also the issue of visualizing this high number of points in a web interface. This work presents a solution for both problems using only freely available software. The chosen problem is the detection of global fishing activity. Specifically, we want to visualize two types of industrial ve...

Juniper Publishers -  Journal of Oceanography Abstract This paper reports the first case of delphinid infanticide off Reunion Island (Indian Ocean). This event provided a rare opportunity to record almost immediate visual and acoustic behaviour in an infanticidal context. The necropsy demonstrated that calf's death was caused by traumatical injuries, most probably inflicted through purposeful violent interactions. Teeth marks found on the calf's skin would incriminate conspecifics. However, epimeletic and in particular nurturant behaviour from a mother towards her dying calf could induce superficial tooth marks as those observed here. Post mortem acoustic and behavioural observations displayed agonistic and sexual interactions from three Indo-Pacific bottlenose dolphin males towards the mother-calf pair spinner dolphin. The nature of the inter-species interaction strongly suggests that Indo-Pacific bottlenose dolphins could have caused traumatic lethal lesions on the c...