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Displaying items by tag: apex predator

The Irish Whale and Dolphin Group (IWDG) has said that evidence suggests a pod of three bottlenose dolphins is living on the east coast of Ireland.
According to RTÉ News, the organisation as validated close to 200 sightings of the dolphins - one of whom was spotted off Co Down in October 2010 - along the Dublin and Wicklow coastline in the last year.
The IWDG's Páraig Whooley says that further analysis of theor movements show that they rarely travel north beyond Dalkey Island or south of Wicklow town, ind
icating a core range of 21 miles (33km).
"Remarkably, they seem to split their time evenly between their Dublin and Wicklow hotspots, thus making them extremely easy to locate, observe and photograph," he adds.
"In fact... the best way to find them other than checking this site, is probably to jump on a DART train in Dun Laoghaire bound for Greystones (or visa versa), making sure to look out the correct window."
While well known for being "boisterous, interactive and gregarious", bottlenose dolphins are also "indescriminate killers of porpoises and other dolphin species, with well-documented cases of infanticide".
Neither are they to be taken lightly by swimmers, with "a case load in Ireland of attacks on swimmers leading to serious injury, and at least one overseas case of [a bottlenose] killing a swimmer.
"It's nice to be able to boast of an apex predator lurking so close to the capital," adds Whooley.
RTÉ News has images of the dolphins in action off the south Dublin coastline HERE.

The Irish Whale and Dolphin Group (IWDG) has said that evidence suggests a pod of three bottlenose dolphins is living on the east coast of Ireland.

According to RTÉ News, the organisation as validated close to 200 sightings of the dolphins - one of whom was spotted off Co Down in October 2010 - along the Dublin and Wicklow coastline in the last year.

The IWDG's Pádraig Whooley says that further analysis of theor movements show that they rarely travel north beyond Dalkey Island or south of Wicklow town, indicating a core range of 21 miles (33km).

"Remarkably, they seem to split their time evenly between their Dublin and Wicklow hotspots, thus making them extremely easy to locate, observe and photograph," he adds. 

"In fact... the best way to find them other than checking this site, is probably to jump on a DART train in Dun Laoghaire bound for Greystones (or visa versa), making sure to look out the correct window."

While well known for being "boisterous, interactive and gregarious", bottlenose dolphins are also "indescriminate killers of porpoises and other dolphin species, with well-documented cases of infanticide". 

Neither are they to be taken lightly by swimmers, with "a case load in Ireland of attacks on swimmers leading to serious injury, and at least one overseas case of [a bottlenose] killing a swimmer.

"It's nice to be able to boast of an apex predator lurking so close to the capital," says Whooley.

RTÉ News has images of the dolphins in action off the south Dublin coastline HERE.

Published in Marine Wildlife

About Electric outboard engines

The direct-drive component in electric outboard engines means that the electric motors are incredibly efficient compared to conventional marine combustion motors, operating with considerably higher torque whilst using less power.

Without any need for gears, cooling systems and moving parts the motors are maintenance free, highly efficient and economic to run.

As a result, electric boat engines are becoming more popular on Irish waters as the world transitions from fossil fuels to green energy.

To date, popular electric engine sizes have been trolling engines typically used by fishermen on lakes.

These marine engines are available in models that can be used in fresh water and sea water, for your boat or kayak.

Electric motors are Ideal for fishermen because they are quiet and create little in the way of disturbance 

Popular electric trolling models range from 30lb thrust to 55lb thrust in a range of shaft lengths.

But use is becoming broader now in 2021 and electric outboard engines are being used on small runabouts and RIBS where electric outboard engine sizes are getting bigger.

Outboard electric engines are economical and environmentally friendly. Battery technology is also improving at a rapid rate meaning they are becoming smaller and lighter and run for longer.

Built in hydro-generation provides alternative recharging options whilst under sail are also options meaning the electric outboard now has a home on the stern on small yachts and dayboats too.

As far back as 2014, Torqeedo owner Jack O'Keefe from Cork Harbour told Afloat readers of his sailing adventures in a Drascombe Coaster dinghy and how after swapping from a petrol version the rewards from his new electric outboard engine are less noise, no smells, more stowage, better sailing performance and a motor that can be started by a small child. But it's still not silent, there's a whine he says here 

Popular brands in Ireland are Torqeedo, ePropulsion, Pulsar and Minn Kota but there are more arriving all the time as the technology advances