Colour Variation of an Individual of Hart's Rivulus (Rivulus hartii) found in a Habitat Rich in Polycyclic Aromatic Hydrocarbons in the Pitch Lake of Trinidad
Ryan S. Mohammed1, Mark J. McMullan2, Bettina Schelkle3, Cock van Oosterhout2
1 - Faculty of Science and Agriculture, The University of the West Indies. St. Augustine Campus, Strategic Environmental Services, 5 Henry Pierre Terrace, St. Augustine, TRINIDAD AND TOBAGO
2 - Department of Biological Science, University of Hull, UK
3 - Biological Sciences, Cardiff University, UK
Abstract. Typical coloured Rivulus hartii have been documented in South America and the twin island state of Trinidad and Tobago in habitats ranging from rock pools to slow moving streams. After repeated sampling at the Pitch Lake, an area rich in polycyclic aromatic hydrocarbons in Trinidad, a single individual was found within a pool of the lake with abnormal colouration. The fish exhibited normal behavior and showed no signs of pathology.
Key words: Rivulus hartii, Pitch Lake, colour variation.