Research projects on sea turtles and cetaceans

Historic manifesto from 1980 which, thanks to Prof. Roberto Argano, establishes the protection of sea turtles, cetaceans and sturgeon.

It all started when collaborations were consolidated within important projects launched by WWF Italy and coordinated by the Department of Animal and Human Biology at La Sapienza University of Rome, through the authoritative referent Prof. Roberto Argano, zoologist and full professor, as well as national scientific director of the same project. He is responsible for the Decree of 15 May 1980 of the Ministry of the Merchant Marine which established the protection of sea turtles, cetaceans and sturgeon.

And it was precisely in that context that the Mediterranean Sea Turtles Project UICN was born. And it was precisely thanks to this important synergy and growth of discoveries and experiences that ARCA saw a significant contribution to the launch of the project and to 93 scientific publications, with co-authors who were internationally renowned technologists such as Mauro Cocco, Guido Gerosa, Daniela Freggi and Paolo Casale.
But ARCA will never forget those who initially played a decisive role in the concrete launch of the project. First of all, all the Salento fishermen's navies, and in order of collaborative importance: Santa Maria di Leuca, Otranto, Porto Cesareo, Castro, Tricase, Brindisi and Gallipoli. The humble fishermen, owners of small boats or fishing vessels were those who initially allowed the "Caretta caretta Italia" project to collect and mark hundreds of specimens, study their ethology and allow many specimens to be recovered and given the necessary rehabilitation care. They never received funding or reimbursement of expenses; the great communication and socialization skills of Prof. Roberto Argano had involved them and made them feel like the first protagonists.

“But right at the tip of the heel of the boot, in Santa Maria di Leuca, there is the highlight. Started by the relentless commitment of Roberto Basso, who directs the Natural History Museum of Calimera, it has created a great enthusiasm and participation. For us it is a great lesson, we would like it to be for everyone. The fishermen of Leuca, like all fishermen, cause involuntary and useless damage to the sea by catching turtles with large hooks of swordfish longlines. However, with extreme civility they try to repair this involuntary damage. Even if it is a great inconvenience to recover and have on board during work a frantic beast like a turtle of 50 or more kilograms, they do it. On land the turtle is, as far as possible, freed from the hook, measured, marked and released back into the wild. At least five hundred specimens have returned to the sea in a few years. It is not the solution, but it is a good start. If more people would take care of the issue, this one as well as many others that concern the environment, if we had more means, we could limit the damage and bring it back within acceptable limits…”.

– We would like to report verbatim what Professor Roberto Argano wrote on this subject in 1987 in the volume Mare Nostrum published by the WWF.

Since 1984, in just a few years, over 1200 specimens were marked, especially Caretta caretta . Many degree theses have been written on this huge and specialized project. We were the pioneers who created the recovery center in Lampedusa, the one at the Marine Biology Station of the University of Messina; the one in Basilicata near the mouth of the Sinni River and many others in Calabria, Campania and Abruzzo. The same can be said for the discovery of the first egg-laying sites in Italy of Caretta caretta , which is due to our association, to its widespread network of increasingly qualified collaborators, to its canine units of Labrador dogs specially trained to locate their nests.

At the same time, important collaborations with the Cetacean Studies Center of Milan also began; ARCA intervened from 1982 to 1995 on several thousand beachings of cetaceans and sea turtles along all the coasts of Southern Italy. On behalf of the Public Prosecutor's Office of the District Court of Otranto and Lecce in 1986, we offered important collaborations useful for the definition of the investigation into the Enichem Agricoltura case of Manfredonia.

The active and well-prepared environmental magistrate of Otranto, Ennio Cillo, opened an investigation that brought to light the dumping, off the coast of Salento, of thousands of cubic meters of dangerous industrial waste. This was caprolactam and other toxic substances that caused serious debilitation and intoxication to marine fauna, in particular to all those species, cetaceans and turtles that had lung respiration. When they surfaced to breathe they came into contact with these suspended substances that caused serious damage to the skin, eyes and respiratory tract, resulting in their beaching, often while still alive. In this great die-off, ARCA really knew how to make a difference by mobilizing hundreds of volunteers: biologists, veterinarians, civil protection units and divers, law enforcement, but above all, once again, the professional and recreational fishermen who watched over and patrolled hundreds of kilometers of the Adriatic and Ionian coasts. After a long and complex legal battle, the responsibilities and causes that led to such a massacre were recognized and it was decided to prevent such a massacre from being perpetuated.

This is how ARCA found itself operating on over 900km of coastline in the regions of Puglia, Basilicata and Sicily where, in the event of beachings, qualified volunteers, also following training courses, were able to operate promptly thanks also to synergic collaboration with all the territorially competent law enforcement agencies.

It is worth mentioning a case that solved many enigmas on the ethology of sea turtles and their erratic-migratory ability. It was August 19, 1986 when, off the coast of Salento, fishermen from Santa Maria di Leuca picked up a young Caretta caretta that had taken the hook of their longline. It weighed 9 kilos and was 43 centimeters long. They promptly informed the director of the civic museum of Salento Roberto Basso because it had an unusual steel identification tag, not an Italian one, but rather with the writing: Vir-Kej-Miami-Florida 33149. Initially, it was thought that it was the result of marking by an American researcher operating in the Mediterranean, then, to banish any possible doubt from his mind, Professor Roberto Argano decided to write to the United States, to the mysterious address in Miami. When the reply arrived, the content fully highlighted the sensational nature of the discovery. Researcher Barbara Schroeder responded: “The turtle is ours. It was born in 1981 on the Atlantic coast of Florida. We kept it in our institute for a year then, on June 2, 1982, we released it off the lagoons of Padre Island (Southern Texas). It weighed 546 grams and was 14 centimeters long. The enthusiasm of all Italian and American researchers is very high. It is the first time that certain proof has emerged, that a Caretta caretta has traveled over 10,000 kilometers of sea”. It was supposed that they were erratic and that they performed seasonal migrations, other turtles tagged by Roberto Basso and the ARCA volunteers in Otranto and found in Greece, Tunisia and Spain. In honor of the American researcher, she was renamed Barbara and was able to return to the sea. And if she was lucky, she will have been able to return to reproduce on that beach where she was born in 1981. Let's not forget the proven longevity of this species and we would all like to hope that she is still alive, that she continues to swim freely across oceans and seas, without ever forgetting that our small but active association has also been able to make a decisive contribution in this case.

If today the sea turtles in the Mediterranean and in particular the Carretta caretta species are clearly recovering, both in terms of population density and the number of confirmed and growing reproductive sites, it is certainly also due to the work carried out by ARCA and its active volunteers. In the eighties we were the first to invest a lot of energy in favor of education and awareness in schools. We were the first to denounce the serious damage caused by plastic waste dispersed in the environment and in particular in the sea. We performed hundreds of autopsies and examinations of the stomach contents, on sea turtles and cetaceans that revealed the clear presence, in their digestive system, of foreign bodies given by plastic bags and other objects.

Fundamental was the laborious and costly activity aimed at marking the greatest number of specimens possible, as well as recovering, treating and releasing into nature the ever-increasing number of injured or needy specimens that arrived at our recovery centres.

Also with regard to cetaceans, the synergic collaboration with the cetacean center of Milan, located at the time at the Civic Museum of Natural History, was fundamental; the authoritative experience of Giuseppe Notarbartolo Di Sciara was decisive in terms of teaching and the right stimuli to refine and strengthen our research activities. Also with regard to cetaceans, from 1982 to 1985, there were hundreds of interventions on beachings of living or already deceased specimens. Once again, the example of many young volunteers from Salento constituted an example of sensitivity and resourcefulness for many other associations and centers that were gradually established throughout Italy and the Mediterranean.