Thursday, May 22, 2008

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Grouper-Day

GROUPER DAY EVENT

Marine Protected Area of \u200b\u200bPortofino, in collaboration with University Genoa, Dr. Mojetta Angelo (Milan) and the City of Santa Margherita Ligure, decided to organize a day devoted to the census of dusky grouper in the waters of the WAP.
It is thought to involve Diving Centres so that normally operate within the AMP, so that this day may constitute a promotional event for The PMI for diving.
This is a unique opportunity to offer different dive underwater, in which the experience of each mode has to be appreciated, as well as of an event that sees the work along with several diving operators in the Marine Protected order to enhance the image of our sea.

The initiative will take place over two days, May 25 and June 8: begin at the site of AMP in S. Margherita with an explanation of the activity.
The census itself will take place Saturday, June 8, between 16:00 and 16:45 to 20:30 with dinner prepared by the Navy League of St. Margherita. Diving to the participants and their customers on May 25, will explain the reasons behind this move and the techniques of visual census to be taken. handing each participant a pre-printed ballot on which to place the data will then be allocated by drawing lots, individual diving about 30 dive sites on which to operate. Some sites are also planned in Area C of the AMP, but will be activated for the occasion, some dive sites in the area A.

The basic idea is to have each site for 3 or 4 (in case you made a run in snorkelling) units of reference (0.5, 10,20,30 m) long which will be held the 'immersion.
At each site divers will plunge into 8 pairs, 4 of which will carry out a horizontal transect to the east and 4 west, keeping the shares as laid down. If membership of the divers was very large, you may consider going down with trios or double pairs of divers. It 'clear, however, that more than 4 persons per transect is not thought possible.

During the dive, divers should note the number of sightings of grouper and some features of the copies distributed on board the night before. After diving, each group will return to their diving, which are responsible for photocopying or photographing all the completed form, so that the card can remain as a reminder to the diver and the organization can collect data.

In summary, this is the program:

May 28, 2008

Meeting in St. Daisy in the new headquarters of the Marine Protected Area, in Viale Rainusso 1, with all those responsible Diving Centers of the participants and their biologists:

- dive briefing

- distribution of the material for divers

- explanation of the use of tablets in the collection of data

- a brief lesson on groupers

- the draw of the dive sites

June 7, 2008

During this day will be held on census :

- 16:00 h immersion at

- 16:45 h after the dive

- meeting in St. Margherita at 19:00 h at the marquee on the pier

- collection of information contained in the tablets by the organization

- h dinner 20.30 (dinner, prepared by the Navy League of Santa Margherita, will cost between 20 and 25 euro per person)

- communication of preliminary results, thanks

To more info and bookings contact info@portofinodive.com

Diving participants: * Association

System Europe 2000 Distinguished Sub

* * * Group
Sori Underwater World Fund
Massub
* * * S Portofino Dive
. * The European fruitful DC
dive'in
center * Center Sub Duilio Marcante


Wednesday, May 21, 2008

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Gallery of nudibranchs David Doubilet

David Doubilet is probably one of the most famous underwater photographers in the world. He works for National Geographic and many other newspapers.
Here find a gallery of Nudibranchs photographed by him. One minor problem: to take pictures on a white background, here is written that he used a kind of table lamp (underwater) to obtain striking images. But I prefer "normal" ones - still moving the animals is not a practice I approve.


Wednesday, May 14, 2008

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The super-view of the shrimp

A group of researchers has shown that the crustacean stomatopode Gonodactylus smithii (A tropical shrimp, which is located in New Caledonia and the Philippines) has a very advanced version of the vision polarized feature almost unique in the animal kingdom. The hypothesis is that this vision can serve both the phenomena of courtship to find the prey on which it feeds, often transparent and difficult to detect.

From PlosONE

Thursday, May 8, 2008

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The effect of acidification on sea lilies

The sea lilies seem to be able to withstand the increased acidity of the water, but with a significant cost on the structure of the muscles. Despite the conditions of high acid seem to increase their ability to accumulate calcium and rebuild parts of the body cavity has the muscle quite common that researchers believe may reduce locomotor efficiency and hence the likelihood of survival.
From Nature