About Marine Mammals
Marine mammals are a food source in many countries around the world. Historically, they were hunted by coastal people, and in the case of aboriginal whaling, still are. This sort of subsistence hunting was on a small scale and produced only localised effects.
Why are whales throwing seaweed on their heads?
... While the Marine Mammals enjoyed rolling around in the seaweed, there was one spot in particular that the whales targeted...
Atlantic orcas 'learning from adults' to target boats
... The Spanish government is using maps of their movements to help inform sailors about how to avoid these Marine Mammals, which hunt for tuna along the coast of Portugal and Spain, and through the narrow Strait of Gibraltar...
Dolphins, whales and seals not protected by UK government, report finds
... Politicians on the Efra committee have suggested the UK should encourage countries they have trade deals with to stop killing Marine Mammals...
Rewilding seas: Some waters off England to get full protection
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Orca mothers make 'lifelong sacrifice' for sons
... " There are currently just 73 of these killer whales left, so the scientists say they need to understand anything that could help inform decisions about how to protect these Marine Mammals...
Dolphins 'shout' to get heard over noise pollution
... They are one of many Marine Mammals that rely on whistles and echolocation to work together for hunting and reproducing...
Marine wildlife warning as UK whale sightings rise
... " Far too many marine creatures are unnecessarily killed due to unsustainable fishing practices, with lost and discarded fishing gear also causing havoc - especially for seals, dolphins and other Marine Mammals...
River Thames: Sharks and seahorses found living in waterway
... The river has seen an increase in its range of birds, Marine Mammals and natural habitats since the 1990s...
River Thames: Sharks and seahorses found living in waterway
Sharks, seahorses, eels and seals have been found living in the River Thames , a study has found.
The State of the Thames Report, led by the Zoological Society of London (ZSL), highlights changes since The River was declared " biologically dead" in 1957.
The River has seen an increase in its range of birds, Marine Mammals and natural habitats since the 1990s.
However, A Number of fish species found in the tidal areas of the Thames have showed a slight decline, experts found.
Conservation scientists Said further research was needed to determine The Cause .
Climate Change has increased the temperature of London's waterway by 0. 2C a year, the study Said . The Rising temperature has meant water levels in the tidal Thames have increased since 1911, ZSL Said .
have also been rising 4. 26mm a year since 1990,
The Report Said shark species including tope, starry smooth hound and spurdog live in the Thames and the there are More Than 100 species of fish in the 215-mile long river.
It added short-term trends revealed water quality has improved, with dissolved oxygen concentrations showing an increase from 2007 to 2020.
Alison Debney, for ZSL, Said : " Estuaries are one of our neglected and threatened ecosystems.
" They provide us with clean water, protection from flooding, and are an important nursery for fish and other wildlife. The Thames Estuary and its associated 'blue carbon' habitats are critically important in our fight to mitigate Climate Change and build a strong and resilient future for nature and people.
" This report has enabled us to really look at how far the Thames has come on its journey to recovery since it was declared biologically dead, and, in some cases, set baselines to build from in The Future . "
Analysis, BBC London transport and environment correspondent, Tom Edwards :The Thames is a huge part of what makes London Unique - and it plays a big part in the lives of many Londoners.
This first major report into The State of the Thames Estuary in 60 years is bittersweet.
There have been huge improvements since parts were declared biologically dead in 1957; there are now 115 fish and 92 bird species. There are seahorses, eels, seals and even sharks.
Oxygen levels are improving but nitrates from sewage are getting worse - although that will hopefully improve when the " super sewer" opens in 2025.
But The Real concern is The Effects of Climate Change . Sea levels are increasing by 4mm a year and the temperature of the Thames is increasing by 0. 2C a year.
Those changes could heavily impact the estuary's wildlife.
The Report also highlights The Need for the, also known as London's super sewer.
The £4. 2bn, 15-mile (24km) long, 200ft (61m) deep sewer will capture 39 million tonnes of untreated sewage that is currently flushed into the Thames every year.
" [The sewer] will have a significant impact on the water quality, Making It a much healthier environment for wildlife to survive and flourish, " Said Liz Wood-Griffiths, from Tideway.
ZSL Said it was working closely with partners to create new estuarine habitats, including seagrass and saltmarsh ones.
" Between them, these not only help to restore wildlife in The River , but also act as natural flood defences, and help to mitigate against Extreme Weather such as storms and floods, " ZSL Said .
Source of news: bbc.com
