[PERSON]  
2 Grupo de Investigacion en Ecologia Marina Aplicada y Pesqueras (EMAP), Instituto de Investigacion de Estudios Ambientes y Recuros Naturales (i-UNAT), Campus de Tafira, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain; [EMAIL_ADDRESS]  
[PERSON]  
1 Area de Toxicologia, Universidad de La Laguna, 38071 La Laguna, Spain;  
[EMAIL_ADDRESS] (A.G.); [EMAIL_ADDRESS] (S.P.-M.); [EMAIL_ADDRESS] (D.G.-W.); crubull.edu.es (C.R.-A. ); [EMAIL_ADDRESS] (D.N.-C.); [EMAIL_ADDRESS] (S.A.-V.); [EMAIL_ADDRESS] (S.A.-V.); [EMAIL_ADDRESS] (S.A.H.) Grupo de Investigacion en Ecologia Marina Aplicada y Pesqueras (EMAP), Instituto de Investigacion de Estudios Ambientes y Recuros Naturales (i-UNAT), Campus de Tafira, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain; [EMAIL_ADDRESS]  
[PERSON]  
1 Area de Toxicologia, Universidad de La Laguna, 38071 La Laguna, Spain;  
[EMAIL_ADDRESS] (A.G.); [EMAIL_ADDRESS] (S.P.-M.); [EMAIL_ADDRESS] (S.P.-M.); [EMAIL_ADDRESS] (S.P.-M.); [EMAIL_ADDRESS] (S.P.-M.); [EMAIL_ADDRESS] (S.A.-V.); [EMAIL_ADDRESS] (S.A.-V.); [EMAIL_ADDRESS] (S.A.H.) [PERSON]  
2 Grupo de Investigacion en Ecologia Marina Aplicada y Pesqueras (EMAP), Instituto de Investigacion de Estudios Ambientes y Recuros Naturales (i-UNAT), Campus de Tafira, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain; [EMAIL_ADDRESS]  
[PERSON]  
1 Area de Toxicologia, Universidad de La Laguna, 38071 La Laguna, Spain;  
[EMAIL_ADDRESS] (A.G.); [EMAIL_ADDRESS] (S.P.-M.); [EMAIL_ADDRESS] (S.P.-M.); [EMAIL_ADDRESS] (S.P.-M.); crubull.edu.es (S.A.-V.); [EMAIL_ADDRESS] (S.A.-V.); [EMAIL_ADDRESS] (S.A.H.) [PERSON], Spain; [EMAIL_ADDRESS]  
[PERSON]  
1 Area de Toxicologia, Universidad de La Laguna, 38071 La Laguna, Spain;  
[EMAIL_ADDRESS] (A.G.); [EMAIL_ADDRESS] (S.P.-M.); [EMAIL_ADDRESS] (S.P.-M.); [EMAIL_ADDRESS] (S.P.-M.); crubull.edu.es (S.P.-M.); [EMAIL_ADDRESS] (S.A.-V.); [EMAIL_ADDRESS] (S.A.-V.); [EMAIL_ADDRESS] (S.A.H.) [PERSON]  
2 Grupo de Investigacion en Ecologia Marina Aplicada y Pesqueras (EMAP), Instituto de Investigacion de Estudios Ambientes y Recuros Naturales (i-UNAT), Campus de Tafira, Universidad de Las Palmas de Gran Canaria, 35017 Las Palmas de Gran Canaria, Spain; [EMAIL_ADDRESS]  
Canarian Public Health Service, Central Laboratory, 38005 Santa Cruz de Tenerife, Spain  
[PERSON]  
1 Area de Toxicologia, Universidad de La Laguna, 38071 La Laguna, Spain;  
[EMAIL_ADDRESS] (A.G.); [EMAIL_ADDRESS] (S.P.-M.); [EMAIL_ADDRESS] (S.P.-M.); [EMAIL_ADDRESS] (S.P.-M.); [EMAIL_ADDRESS] (S.A.-V.); [EMAIL_ADDRESS] (S.A.-V.); [EMAIL_ADDRESS] (S.A.-V.); atoref@ull.edu.estheir tissues and organs are directly related to water pollution and the bioaccumulation of contaminants in the food chain [14; 15; 16; 17]. _Sparisoma cretense_ ([PERSON], 1758) is an omnivorous species that feeds on algae on rocks and its benthic animals and on sea grass and microinvertebrates, especially crustaceans and small mollusks. It belongs to the group of herbivores that have developed special muscles and bones in the pharynx, which function as a crusher, and it uses these plates in the pharyngeal area to grind all the food it eats, which results in a reddish-brown paste in its intestines [18; 19; 20]. _Serranus atricauda_ ([PERSON], 1874) plays an important role in coastal marine ecosystems where it is an active predator of small fish, crustaceans, bivalves, gastropods and urochordates of the thaliacea family. It is a solitary and territorial fish that usually lives on the coastline and in sub-littoral areas on shallow rocky bottoms, up to 350 m deep. It hides among rocks, caves or any cavity if it feels threatened [21; 22; 23]. Bearing in mind all the above, the objective of this study is to study whether the metal concentrations in _S. cretense_ and _S. atricauda_ differ between different coastal areas around the island of Tenerife, Canary Islands and to study whether these species are good bioindicators of coastal pollution.