[MARMAM] New Article: Dolphins Presence & Incidental Capture in a marine fin fish farm

Bruno Diaz bruno_daz2000 at yahoo.es
Sun Feb 18 06:36:43 PST 2007

Dear Marmam subscribers,
  Apologies in advance, to those of you on both listserves who will receive cross-postings.

  I am pleased to announce the publication of the following article in the last J. Mar. Biol. Ass. U.K. (2007); JMBA 87, 113–117 entitled:
  Bottlenose dolphin (Tursiops truncatus) presence and incidental capture in a marine fish farm on the north-eastern coast of Sardinia (Italy)
  Díaz López, B & Bernal Shirai, J.A. 
  doi: 10.1017/S0025315407054215
  On the north-eastern coast of Sardinia, from November 2004 to January 2006, the first attempt in the Mediterranean basin to obtain information on encounter rate, group size and incidental capture of bottlenose dolphins in a marine fish farm was assessed, combining direct observations from fish farm boats with photoidentification studies. During 15 months of research, 79 d (65.3% of the total monitored days) were spent in direct observation of 146 groups of bottlenose dolphins around the fish farm cages. There was a peak in bottlenose dolphin presence during winter. Photographs were taken in the fish farm area during 79 encounters on 61 different days (totalling 34 marked individuals). The regular occurrence of some dolphins suggests individual preferences for the fish farm area. The incidental bottlenose dolphin capture observed in large, loose predator nets (1 dolphin per month) is cause for concern, as it is questionable whether or not the bottlenose dolphins in the
 area can sustain incidental capture of this magnitude. The information gained from this study shows the necessity for further regulations to be established, both in the use of predator nets and management of marine fish farms.
  A pdf file is available and can be sent on request (bruno at thebdri.com), the article will be available shortly from the BDRI's website www.thebdri.com
  This paper is one in a series of studies that have been published over the past years which show the influence of a marine fin fish farm in bottlenose dolphins presence, distribution and feeding behaviour.
  Best wishes,
  Bruno Díaz López
  Research Chief
  The Bottlenose Dolphin Research Institute BDRI
  Via Diaz 4, Golfo Aranci 07020, Italy
  Tel: 00 39 346 0815414
  bruno at thebdri.com

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