Angel sharks flee from heat: climate change endangers pairing!
Angel sharks flee from heat: climate change endangers pairing!
Kanarische Inseln, Spanien - rising sea temperatures are a serious threat to reproduce the endangered angel sharks (squatina squatina). According to a report by Econews avoid their traditional mating areas when the water temperatures Critical point increase. On the other hand, male angel sharks continue to return to these areas, which leads to an alarming imbalance in the reproductive pattern of this kind.
A study published in the specialist magazine Global Change Biology shows that female angel sharks are particularly sensitive to elevated temperatures. Reproduction is very complex for the females, which is why rising temperatures can result in an escape from the strongholds of reproduction. In 2022, the sea temperatures around La Graciosa were well above average, which led to a decline in the population of female angel sharks.
habitat and reproduction under pressure
The decline in reproductions is a serious danger of survival of the already very endangered angelhai type. Dr. David Jacoby from Lancaster University draws a worrying comparison and describes the effects of marine heat waves as forest fires under water. The Canary Islands are one of the last places of retreat for angel sharks, which is why their protection must be a top priority.
dr. Lucy Mead from the Zoological Society of London warns of a long -term collapse of the reproductive success if the time window increases further between the reproduction behavior of the males and females. The study suggests that targeted protective measures are necessary to save these marine retreat and the population of angel sharks.
overarching effects of climate change
The challenges that climate change for Marine offers ecosystems are not limited to angel sharks. Climate change significantly influences the oceans, which cover 71 % of the earth's surface. Knowing that increasing temperatures and the oceanic dose endanger the biodiversity of the sea. Coral reefs are particularly at risk that suffer from coral bleach and thus not only put in danger, but also numerous other naval forms.
Oceans also act as important carbon storage and therefore have a crucial role in the global climate system. The loss of marine biodiversity also has ecological, economic and social consequences that extend far beyond the sea. Urgent need for action to reduce greenhouse gas emissions and to ensure sustainable use of maritime resources are inevitable.
The loss of coastal habitats and the erosion are further examples of the far -reaching effects of climate change. As required several times, international collaborations and the establishment of Marine protected areas are essential steps to cope with these challenges and to maintain the marine habitats.
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| Ort | Kanarische Inseln, Spanien |
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