FIGURE 1. Survey stations (yellow dots) on the west and east coastline of south India. *Station Codes: A-Minicoy; B-Kadmat; C-Agatti; D-Kavaratti; E-Grande Island (Goa State); F-Netrani Island (Karnataka State); G-Vizhinjam (Kerala State); H-Enayam; I-Kolachel; J-Kadiapattnam; K-Muttom inshore; L-Muttom offshore, Kelakkal; M-Muttom offshore, Melakkal; N-Kanyakumari; O-Leepuram; P-Chinnamuttom; Q-Hare Island; R-Manauli Island; S-Kurusadi Island; (Q-S Gulf of Mannar Islands, Eastern India).