Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Whale And Dolphin Calves In The Bay Of Biscay

17.10.2005


The Biscay Dolphin Research Programme (BDRP) has recorded an increasing number of whale & dolphin calves and juveniles in the Bay of Biscay and English Channel during the spring and summer months confirming the importance of the area as a calving ground and an area probably used by many species during the post-natal period.



Clive Martin, BDRP Director and Senior Wildlife Officer said: “In May we started to record calves amongst the Common Dolphin (Delphinus delphis) pods which are often encountered bow riding the Pride of Bilbao, we have also encountered Harbour Porpoise (Phocoena phocoena) calves in the English Channel. A number of Fin (Balaenoptera physalus) and Sperm Whale (Physeter macrocephalus) calves and juveniles have also been encountered during May and June.”

The calves can easy be distinguished from adults by their smaller size (less than half that of adult) and their close association with an adult, presumably their mother.


Dr Tom Brereton, BDRP Scientific Officer said: “From the unique BDRP Biscay sighting database which spans the last 10 years, calves from a number of cetacean species start to be seen regularly in June and July. Encounters continue during the summer months when calves of Common (Delphinus delphis), Striped ( and Bottlenose Dolphins (Tursiops truncatus), Harbour Porpoises (Phocoena phocoena), Fin Whales (Balaenoptera physalus), Sperm Whales (Physeter macrocephalus), Pilot Whales (Globicephala melas) and Cuvier’s Beaked Whales (Ziphius cavirostris) are seen.”

Clive Martin and Matt Hobbs also from BDRP, who was leading a Company of Whales tour, witnessed an incredible sighting of Common Dolphins (Delphinus delphis) on a July crossing of Biscay. Over 3500 dolphins were seen during the passage south with a single pod in excess of 1000 individuals, with more than 50 juveniles and calves – this clearly demonstrates the importance of the area for this species.

The Bay of Biscay may be a calving ground for several species of cetacean and is probably used by many of these species during the post-natal period. The northern Biscay-Celtic shelf-break in particular provides an abundant source of food for animals during the summer and autumn period due to highly elevated marine productivity. This productivity is driven by internal tidal waves mainly caused by the interaction of surface tides with steep and complex sea-bed topography. For Common Dolphins (Delphinus delphis) and other species, this super-abundance of food provides the ideal conditions to feed extra mouths.

With many cetaceans under threat from over fishing, by-catch and habitat destruction in many parts of the World, habitats such as Biscay which provide important feeding areas for a wide range of cetacean species and for mothers with calves are critically important and need to be protected.

Evidence from the Biscay Dolphin Research Programmes extensive database of cetacean sightings in the European Atlantic and its continuing research, together with its close links with members of the Atlantic Research Coalition (ARC), indicate that the Bay of Biscay is of high significance in European terms for a number of threatened species, including the Bottlenose Dolphin (Tursiops truncatus), the Common Dolphin (Delphinus delphis) and the Fin Whale (Balaenoptera physalus) yet the slope and canyon waters of Biscay, which are favoured by cetaceans, do not currently have specific protection as a habitat.

For further information on the Biscay Dolphin Research Programme (BDRP) please contact Adrian Shephard, Public Relations & Publicity Officer at adrian.shephard@biscay-dolphin.com or visit the website at www.biscay-dolphin.org.uk

Adrian Shephard | alfa
Further information:
http://www.biscay-dolphin.org.uk
http://www.biscay-dolphin.org.uk/pressrelease/091005.html

More articles from Ecology, The Environment and Conservation:

nachricht International network connects experimental research in European waters
21.03.2017 | Leibniz-Institut für Gewässerökologie und Binnenfischerei (IGB)

nachricht World Water Day 2017: It doesn’t Always Have to Be Drinking Water – Using Wastewater as a Resource
17.03.2017 | ISOE - Institut für sozial-ökologische Forschung

All articles from Ecology, The Environment and Conservation >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Pulverizing electronic waste is green, clean -- and cold

22.03.2017 | Materials Sciences

Astronomers hazard a ride in a 'drifting carousel' to understand pulsating stars

22.03.2017 | Physics and Astronomy

New gel-like coating beefs up the performance of lithium-sulfur batteries

22.03.2017 | Materials Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>