Displaying items by tag: common dolphins
The first eight months of 2017 alone have seen 201 recorded strandings - up 30% compared to the same period in the last two years.
“As in recent years, the numbers of dead common dolphins recorded are very high, with 78 records for this species to the end of August 2017 accounting for 39% of all strandings,” says IWDG strandings officer Mick O’Connell, who notes that the numbers of dead dolphins washing ashore in late winter and spring has grown unusually high.
“Even in a series of years with particularly high numbers of this species stranding since 2011, 2017 is well ahead of the previous two ‘record’ years by the end of August — 66 in 2016 and 53 in 2013.
“These are, of course, minimum numbers as we don't know how many dead animals go unrecorded and also many unidentified dolphins which aren't identifiable to species level are likely to be common dolphins,” he adds.
The IWDG is currently working with the Marine Institute, Department of Agriculture and National Parks and Wildlife service on a post-mortem scheme for common dolphins, striped dolphins and harbour porpoises which is hoped will shed new light on what might be causing this alarming rise in cetacean deaths.
Meanwhile, there was more positive news from the recent all-Ireland whale watch at the end of August, where three-quarters of the 20 sites around the island recorded sightings.
Around 1,300 whale watchers and wildlife enthusiasts spotted eight species of cetacean between them — with the busiest site at Loop Head in Co Kerry, where 120 lucky visitors got to see two humpback whales, five minke whales, six bottlenose and a whopping 50 common dolphins.
Other marine wildlife species spotted around the coast included Risso’s dolphins, blue fin tuna, ocean sunfish and grey seals.
A total of 28 confirmed standings were recorded in the IWDG's strandings database in January and February of this year, just below 2013's worst figures so far when 31 were reported.
That compares to an average of fewer than six reports for the same period each year between 2002 and 2010.
The current decade has seen a significant jump in recorded figures, with 18 reports of dolphin standings in 2011 compared to just two in the same months in 2010.
Many of the dolphins found this year were recorded in the North West, a great number of them drowned according to post-mortem results, while others showed signs of being tangled in fishing gear, which suggests they were bycatch in the nets of supertrawlers that ply the seas off Donegal, Sligo and Mayo.
"While there is no conclusive proof of what vessels are involved, the evidence points to the presence of large (c.100m) foreign registered freezer trawlers fishing in Irish offshore waters."
That's according to the IWDG's strandings officer Mick O'Connell, who warns that "the number of bycaught dolphins that actually get washed ashore and recorded as stranded may be only a small percentage of the actual number of dead animals."
The IWDG reiterates the call for independent observers to be placed on supertrawlers in Irish waters, following controversy over the visit of one of the world's largest fishing boats last November.
In other news, Scotland's Press and Journal reports that a humpback whale was killed after getting trapped in fishing ropes in the Outer Hebrides.
The juvenile whale was found dead on the Isle of Barra this week with the "classic signs of having suffered entanglement."
#MarineWildlife - Seven dolphins and two beaked whales have stranded on beaches in the northwest in events described as "unusual" by the Irish Whale and Dolphin Group (IWDG).
On the Mullet Peninsula, a group of seven common dolphins - comprising five adults and two juveniles - live stranded at Tarmon Beach on Sunday 12 May.
Though initial attempts to refloat them were successful, one of the juveniles was later found dead and the other was euthanised due to poor health.
Meanwhile in Donegal, the fresh carcass of a female True's or Sowerby's beaked whale was found on Sunday evening on Five Fingers Stand at Inishowen - some days after a reported live stranding of a Sowerby's beaked whale on the Welsh coast.
The Inishowen stranding was followed yesterday 14 May by the discovery of a dead beaked whale calf at Trawbreaga Bay, in what is believed to be a connected stranding.
Samples of the adult female were taken in order to confirm the species, either of which would mark a rare cetacean record for Ireland - the first since 2009.
#MARINE WILDLIFE - A "feeding frenzy" involving a pod of fin whales was spotted off Hook Head in Co Wexford last week, The Irish Times reports.
And according to Andrew Malcolm of the Irish Whale and Dolphin Group (IWDG), two of the whales were in the same location almost exactly a year ago.
Malcolm, who was with a group on board the Rebecca C, used photographs of the whale's dorsal fins to compare records for the confirmation.
The pod of six fin whales was seen feeding some 3km southeast of Hook Head, attracted by the herring spawning grounds in the area.
More than 30 other cetaceans, including common dolphins, porpoises and a minke whale, were sighted on the trip.
The Irish Times has more on the story HERE.