Dr. Jamilarizgalla

Department of Aquaculture faculty of Agriculture

Full name

Dr. Jamila taher ahmed rizgalla


Doctor of Phiosophy

Academic Rank



Born in Tripoli, Jamila Rizgalla graduated from the Faculty of Veterinary Medicine, Tripoli, Libya in 1999. Following an MSc in Aquatic Veterinary Studies from the Institute of Aquaculture, University of Stirling, Scotland in 2005 she accepted a position as assistant lecturer at the department of Aquaculture, Faculty of Agriculture, University of Tripoli, Tripoli 2006 and was appointed head of department 2009-2010. Following a PhD in the health status of wild dusky grouper in Libya, at the Institute of Aquaculture, University of Stirling, Scotland, funded by the Libyan government in 2017. She returned to the department of Aquaculture, Faculty of Agriculture, University of Tripoli, Tripoli, Libya to continue her work as Lecture. She teaches at the University of Tripoli and internationally. She called to life Project Snowball (2018-date), a project that aims at assessing marine biodiversity in Libyan waters combining field work, social media and citizen science projects. She is author and co-author of a number of scientific papers, most of which concern diseases and disease processes in fish, recording of invasive species and assessing marine megafauna.

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Doctor of Phiosophy

3 ,2017

Master degree

Aquatic Veterinary Studies
Institute of Aquaculture, University of Stirling, Scotland, UK
8 ,2005

Bachelor Degree

Veterinary Medicine
Faculty of Veterinary Medicine, University of Tripoli
8 ,1999


Ulcerative dermatitis in wild dusky grouper Epinephelus marginatus (Lowe) from Libyan waters

In the period 2013–2015, wild dusky grouper, Epinephelus marginatus (Lowe), caught in Libyan coastal waters and ranging in size from 42 to 92 cm in total length, were observed to have distinctive skin lesions of unknown aetiology. Histopathologically, the lesions comprised a multifocal, unilateral or bilateral dermatitis, involving the epidermis, superficial dermis and scale pockets, and sometimes, in severe cases, the hypodermis. Severe lesions had marked epidermal spongiosis progressing to ulceration. Healing was observed in some fish. Bacteria and fungi could be isolated from severe lesions, although they were not seen histopathologically in early‐stage lesions. By contrast, metazoan parasite eggs were observed in the dermis and epidermis of some fish with mild and moderate dermatitis. Unidentified gravid digenean trematode parasites carrying similar eggs were also seen within the blood vessels of the deep and superficial dermis. The cause of this distinctive condition, termed dusky grouper dermatitis (DGD), and its potential impact upon already threatened Mediterranean wild dusky grouper populations and upon cultured grouper more widely have yet to be established.
Jamila taher ahmed rizgalla(5-2016)
Publisher's website

A novel use of social media to evaluate the occurrence of skin lesions affecting wild dusky grouper, Epinephelus marginatus (Lowe, 1834), in Libyan coastal

The social media network Facebook™ was used to gather information on the occurrence and geographical distribution of dusky grouper dermatitis, a skin lesion affecting the dusky grouper, Epinephelus marginatus. Dusky grouper are common targets for spear fishermen in the Mediterranean and by monitoring spearfishing activity in Libyan waters, it was possible to document skin lesions from their entries on Facebook. Thirty-two Facebook accounts and 8 Facebook groups posting from 23 Libyan coastal cities provided a retrospective observational data set comprising a total of 382 images of dusky grouper caught by spearfishing between December 2011 and December 2015. Skin lesions were observable on 57/362 fish, for which images were of sufficient quality for analysis, giving a minimal prevalence for lesions of 15.75%. Only dusky grouper exceeding an estimated 40 cm total length exhibited lesions. The ability to collect useful data about the occurrence and geographical distribution of pathological conditions affecting wild fish using social media networks demonstrates their potential utility as a tool to support epidemiological studies and monitor the health of populations of aquatic animals. To our knowledge, this represents the first time that such an approach has been applied for assessing health in a wild population
Jamila taher ahmed rizgalla(1-2017)
Publisher's website