Table 1. Names and positions of the sampling locations along the Chilean coast, ordered from north to south.

Location	Abbreviation	Species	Type	Latitude	Longitude	Sampling date
Iquique	IQ	Northern	Central	20°25'62”S	70°12'48”W	05-05-2008
Carrizal Bajo	CA	Northern	Central	28°04'27”S	71°08'36”W	05-05-2008
Chañaral de Aceituno	AC	Southern	Marginal	29°04'03”S	71°29'26”W	03-06-2008
Choros Ventana	CH	Northern	Marginal	29°12'57”S	71°28'23”W	03-06-2008
Coquimbo-Cruz	CO	Southern	Marginal	29°57'15”S	71°21'44”W	15-06-2008
Río Limarí	LI	Southern	Central	30°44'10”S	71°42'05”W	06-05-2008
Las Cruces	LC	Southern	Central	33°30'09”S	71°38'01”W	06-05-2008
Valdivia	VA	Southern	Central	39°46'75”S	73°23'49”W	04-06-2008