Showing posts with label Kalamos area. Show all posts
Showing posts with label Kalamos area. Show all posts

23 October 2009

Ionian Dolphin Project: updated report 1991-2009


The Ionian Dolphin Project, a long-term research and conservation programme conducted by Tethys in the eastern Ionian Sea, has recently completed a report of the activities done in the context of its three study areas in Greece: Gulf of Amvrakikos, Gulf of Corinth and Inner Ionian Sea Archipelago.

The online version of the report can be viewed at the link below:

http://www.tethys.org/hd/research.htm

(also see pages of the Menu)

Enjoy!

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NOTE:
the links above have been updated since the web site was modified in August 2010.

12 September 2009

Pira on holidays


Pira is a male bottlenose dolphin who has been seen regularly around the island of Kalamos, Greece, for 15 consecutive years. He has been there since 1993 and is considered one of the most resident dolphins.

In April 2009 we spotted him in the Bay of Itea, Gulf of Corinth, where Tethys has recently started a new reserch project. To get there, Pira had travelled approximately 170 km.

After April, we did not manage to find Pira again despite extensive surveys in the central Gulf of Corinth. We started making jokes such as ‘Maybe Pira came here on holidays and now he is back in Kalamos’. Well... he was! In July and September he was seen again around Kalamos together with his old bottlenose dolphin friends. He had made a 170 km round trip along the Ionian coast of Greece.

Silvia Bonizzoni

10 September 2009

Old friends sighted around Kalamos


A few days ago, two V.I.D. (Very Important Dolphins) were encountered around the island Kalamos: Pira and Spiti, both bottlenose dolphins, seen together in a group of 11 individuals.

In 2006 Pira, a male, had a piece of yellow fishing net stuck in his blowhole, but by July 2009 he had managed to extrude the net from the blowhole. During the September sighting, Pira went to bowride in front of our research boat and Joan Gonzalvo took some nice photos of the blowhole, confirming that the net went away without causing any visible problem.

Spiti is the most popular dolphin among volunteers who had a chance to see this dolphins around Kalamos, thanks to his distinctive non-fin. Spiti's dorsal fin has been cut-off (possibly by a longline or a boat propeller) in 2003. Despite the dramatic amputation, Spiti recovered well and pigmentation went back to the original dark grey color.

Silvia Bonizzoni

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Top photo: Pira bowriding our research boat
Bottom photo: Spiti with his missing dorsal fin

02 September 2009

Ionian Dolphin Project web update


The web site section of the Ionian Dolphin Project has been updated to include work conducted until July 2009.

Check it out!

http://www.tethys.org/projects/IDP/

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The Ionian Dolphin Project is a long-term research and conservation programme conducted by the Tethys Research Institute in the Ionian Sea.

In 1991 the Tethys Research Institute started a study around the island of Kalamos, in the Inner Ionian Sea Archipelago (a Natura 2000 area). Initially meant to be a long-term investigation on the ecology and behaviour of common dolphins in a central Mediterranean hotspot, the study documented their sharp decline. Common dolphins declined dramatically from about 150 to 15 animals between 1995 and 2007. Actions by Tethys aim to facilitate their recovery. Bottlenose dolphins are found in the same area in relatively small numbers, but have stable trends and were studied intensively over the past decade. Ongoing monitoring allows to detect changes in population status and propose timely management measures.

In 2001 Tethys started a study in the Amvrakikos Gulf, where bottlenose dolphins are the only cetacean species encountered. This study showed that about 150 dolphins live in the Gulf. These dolphins are members of a resident community showing unique behaviour and ecology. The Gulf - which is part of a larger National Park - is also inhabited by loggerhead sea turtles Caretta caretta and has a rich bird fauna including rare species. Research carried out by Tethys is documenting how the local dolphin community interacts with its environment and how human activities - particularly fishing and pollution - may influence its conservation status.

In 2009 Tethys started a new study in the Gulf of Corinth to investigate the ecology and status of three cetacean species: bottlenose dolphins, striped dolphins and short-beaked common dolphins. Although the number of striped dolphins living in the Gulf is still unknown, concerns over their status are raised by their likely small population size, high degree of geographic isolation, reproductive closeness and limited extent of occurrence. Striped dolphins in the Gulf are often associated with a few common dolphins and inbreeding between the two species may occur. Bottlenose dolphins also live in the Gulf at low densities.

Research by Tethys is providing support to management efforts in the eastern Ionian Sea, through actions including:

- continued monitoring of dolphin groups through field research methods including boat surveys and individual photo-identification, to detect population trends, identify critical habitat, and gain further insight into ways of mitigating the present threats;

- research on factors threatening the local ecosystem, particularly with regard to the impact of fishing;

- public awareness initiatives (e.g. involvement of a large number of volunteers, “Dolphin Days” and other events organized locally, public presentations, lectures at local schools, video productions);

- contacts and meetings with the local Authorities and fishermen organisations, aimed to a) raise awareness on the need to establish measures to protect dolphins and implement the existing regulations (e.g. with regard to illegal fishing activities); and b) identify ways to compensate any losses for fishermen or promote a progressive re-conversion of their activities;

- dissemination of information in the scientific literature and provision of sound data and management proposals to international agreements and bodies concerned with the protection of marine biodiversity.

28 July 2009

Kalamos: first sighting of the year


Finally! Yesterday, just after 15 minutes of navigation around the transparent waters of Kalamos we had our first sighting of the year. It was my seventh time surveying the area this year and I already had come to terms with the fact that a sighting, given the low dolphin density in these waters, was quite unlikely.

When my colleague Susie called out! I couldn’t believe it. My perplexity, however, only lasted three seconds -- the time it took to turn around and spot the familiar silhouettes of the dolphin’s dorsal fins smoothly cutting the sea surface. As we approached them we confirmed that they were bottlenose dolphins. We spent three hours photoidentifying all the 16 dolphins of the group and recording their behaviour with the help of our five Earthwatch volunteers. I cannot think of a better spot for the dolphins to pop up and make my day. They were right in front of the beautiful village of Episkopi, where we had our field base for over 15 years and where I had some of the best moments of my life.

Because of my exclusive dedication to research in the Amvrakikos Gulf for the past several years, my last sighting in Kalamos occurred in 2004. Being around that group of dolphins felt special. Since I switched on the camera to get started with the photo-id, memories kept coming to my mind. My first sighting in a nearby location, 11 years ago. The first day I grabbed the camera with shaky hands after Giovanni (Bearzi) handed it to me saying “Joan, six dolphins: photoidentify them all - you have half an hour”. The first research season in which me and my fratello Stefano (Agazzi) were in charge of the research and logistics on our own... and many hours spent in the company of these wonderful creatures. I would not be the same person without all those experiences on my shoulders.

Joan Gonzalvo

20 June 2009

All good things come to an end


Isn’t it strange how six weeks sometimes feel like a small eternity? That’s at least the impression I have as my time here in Amvrakikos Gulf is drawing to an end. Once immersed in the pleasant routine of combined field and analytic work, everything else fades away and you feel like you have been here forever. Although a cliché, it wouldn’t be an exaggeration to say that this experience has paved the road for a new chapter in my life.

Professionally, I have learnt and developed tremendously, and have no doubt that this is my ‘path in life’ (to throw in another cliché). Personally, I have had a lot of fun and enjoyed every day out at sea. ‘Conservationally’, I hope that my work will make some kind of contribution to cetacean research.


On my last day we also made a second survey of the site of Kalamos, and the comparison with Amvrakikos is rather striking. This place looks like a paradise, but is unfortunately a paradise in decline, for dolphin-lovers at least. Listening to Joan describing the situation of 10 years ago, it is difficult to believe that hardly any cetaceans or marine mega fauna remain.


Being able to follow your beliefs and passions as part of your work is a privileged few are entitled. I thus feel doubly grateful for having had the opportunity to work with Tethys as a research assistant. A special thanks is due to Joan and Giovanni, whose guidance and support have made my time here not only possible but also challenging and exciting. Bon courage for next week Joan!


Christina Geijer

13 June 2009

First survey of the year at Kalamos


On June 8th, we carried out the first survey of the year in the area of Kalamos. It felt good to navigate these waters, where I had my first dolphin sighting ten years ago, after four years without personally doing any survey in this area.

However, no dolphins were spotted across more than 3 hours of survey under good sea state conditions. This was no surprise, considering the negative dolphin population trends that we have been describing over the years.

During the survey, countless anecdotes about the numerous sightings I had in these crystal-clear waters came to mind. It is hard to believe that an area that was so full of marine life just a decade ago has become such a desert. Surveying the area of Kalamos will help us keep in mind that bottlenose dolphin abundance in the Amvrakikos Gulf cannot be given for granted. Dolphins can and sometimes do decline in relatively short periods of time, and we must ensure that those we are studying in the Gulf won’t face the kind of anthropogenic impact that affected the area of Kalamos, former common dolphin paradise.

Joan Gonzalvo