Archive | February 2016

Did you know you can tell individual whales and dolphins apart?

Many whales and dolphins have markings that are individually unique. These are easily distinguished in photographs. Read More…

Advertisements

Playlist shuffle: The daily acoustic repertoire of bottlenose dolphins

12316220_10153447058015547_8203803342898833234_n

Anja Badenas, MSc Student on Marine Biodiversity and Conservation

 

Playlist shuffle: the daily acoustic repertoire of bottlenose dolphins

 

As mentioned on the previous post , bottlenose dolphins rely on sound production for orientation, feeding and communication with con-specifics. It is therefore of great importance to study their vocalization repertoire as it can provide important information on their habitat use and responses to human induced stress. Acoustic monitoring using hydrophones (underwater microphones) to record the different vocalizations naturally produced by dolphins is particularly important in coastal habitats, where dolphins may be affected by boat traffic noise and coastal construction.

spectogram

Spectogram showing different bottlenose dolphin vocalizations.BP = burst pulse, W=whistle, LFN=Low frequency narrowband sounds. (from Gridley et al. 2015).

Read More…

Where to see dolpins in Cape Town

simon-elwen-sea-search-team-member

Dr Simon Elwen

Dr Simon Elwen, director of Sea Search Africa wrote an interesting article in Cape Town Community, here the link to the full article.

In the article, he gives suggestions about where to see dolphins.

 

 

Read More…

Did you know…bottlenose dolphins have names and friends?

Sound travels 4 TIMES FASTER in water than air and most whales and dolphins rely on sound to communicate and find food.

Bottlenose dolphins can develop individually distinctive SIGNATURE WHISTLES in the first year of life. Somewhat like a NAME, these whistles are used to help dolphins stay in contact and address each other.

Bottlenose dolphins also use ECHOLOCATION CLICKS to find and track their prey.

Small groups join together and split up frequently. This is called a FISSION-FUSION SOCIETY.

Some individual dolphins consistently associate with each other- much like friends

This slideshow requires JavaScript.