Biodiversity and its threats in the Wadden Sea

This article is part of the 4sea Project

The European Wadden Sea

The European Wadden Sea is located in the North Sea and reaches from Den Helder in the Netherlands, through Germany to Esbjerg in Denmark. There are other parts of the world where tidal regions also exist for example in Mauritania in West Africa and in Georgia Bight in the USA. With the expanse of the European Wadden Sea of 10.000 square meters it is the longest, connected tidal region worldwide [1].

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Publicités

Does heat stress amplify the negative effects of micro plastics on marine benthic filter feeders?

This article is part of the 4sea Project

Since the 1950´s, the worldwide plastic production has continuously increased to a maximum of roughly 288 Mio tons in 2013. Of this vast amount of plastic litter about 4.8 to 12.7 Mio tons enter the oceans annually even though it is a fact that plastic and especially small plastics particles (< 5mm), termed micro plastics pose a serious threat to marine organisms and their ecosystems [1]. These small particles are ubiquitous in the marine environment and can mistakenly be taken up by marine organisms, like bivalve species causing severe negative effects. Micro plastics can lead to tissue inflammation, reduction of filtering activities, the production of pseudofaeces, impact the reproduction, or even cause death [2].

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The SDGs turn 2 – Time to get to know #SDG14

This article is written by Mona Hosseini.

Back in September 2015 193 governments came together after a process of discussions and negotiation to sign the 17 Sustainable Development Goals (SDGs). The SDGs then replaced the Millennium Development Goals (MDGs). The MDGs were meant to be reached until 2015 whereas the SDGs are part of the post 2015 agenda, namely the 2030 Agenda for Sustainable Development [1].

The Sustainable Development Goals turned 2 this year which is only one of many reasons to pay attention to them. Before taking a closer look at the 14th SDG about life below water we will discuss Sustainable Development in general and have a broad but short overview of the 17 Sustainable Development Goals.

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Climate change and fishery: How climate change strongly impact food security in Sub-Saharan-Africa?

This article is part of the 4sea Project

In the whole world, fisheries play an important role providing food supply and being an income generator and nutrition source to millions of people. Indeed, some 43,5 millions of people live directly from the fishery sector. If you add all the fishery associated activities, it is some 200 millions of people (Essam Yassin Mohammed and Zenebe Bashaw Uraguchi, 2013) who live directly from fishery.

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Desertif’Actions 2017

This article is written by Charlotte Blondel.

The international summit of non-state actors on desertification, Désertif’Actions 2017, took place in Strasbourg, France, from 26th to 28th June, 2017. It was co-organized by Climate Chance, CARI and the UN Convention on Desertification (UNCCD), and supported by the city of Strasbourg.

logo-desertifactions2017

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Upwelling Zones – Secrets of the deep Ocean

This article is part of the 4sea Project. 

The sinking of water masses forms the “motor” of the thermohaline circulation. Warm saline water masses flow from the equatorial regions to the north, where they cool down, lose volume and sink to the bottom. Along the ocean floor those water masses flow back to the south. However, these water masses must come up at some point to form a circulation and to follow the simple law of physics of mass continuity. The process of these re-emerging water masses is called upwelling.

EarthMap_upwelling_red

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Cooking Tropical Storms

Increasing sea surface temperature changing precipitation patterns and fuelling extreme weather conditions.

This article is part of the 4sea Project.

When you heat the water for your cup of tea, you take of the lid and you see there are lots of tiny drops under the lid. With the climate change, the same procedure is happening with the sea of our planet and that’s how climate change can change precipitation patterns by increasing sea surface temperatures that creates evaporation and increases the rainfall. And we are not just talking about small scattered showers, but tremendous rainfalls and tropical storms.

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