This section on marine fish showcases the colourful fish that inhabit various marine ecosystems. Fish make up the largest group of vertebrates, and nearly half of the world's fish species can be found in the ocean. They are diverse in their characteristics, colour and body form but what unites them is the presence of a swim bladder which is an air filled organ that helps them swim and stay afloat. There are over 18,000 species of saltwater fish in oceans around the world, and this number keeps changing due to fluctuating populations and estimates based on predation, fishing pressure, etc. Marine fish have several adaptations that ensure that excess salts don't accumulate in their bodies. Sadly, due to several pressures like pollution, overfishing, aquarium and exotic pet trade, and climate change, all these colourful fish are facing threats in their environment.
Tiger moray | Joydeep Sarkar
Giant moray | Joydeep Sarkar
Masked moray | Vardhan Patankar
Undulated moray | Joydeep Sarkar
Blue-ring angelfish | Vardhan Patankar
Common clownfish | Vardhan Patankar
Semi-circle angelfish | Jonathan Emmett
Threeband damselfish | Phalguni Ranjan
Latticed butterflyfish | Vardhan Patankar
Melon butterflyfish | Phalguni Ranjan
Meyer's butterflyfish | Vardhan Patankar
Phantom bannerfish | Phalguni Ranjan
Fire dartfish | Vardhan Patankar
Banded triplefin | Phalguni Ranjan
Blue-lined grouper | Vardhan Patankar
Four-saddle grouper | Phalguni Ranjan
Honeycomb grouper | Jonathan Emmett
Redfin anthias | Vardhan Patankar
Coral hawkfish | Vardhan Patankar
Freckled hawkfish | Vardhan Patankar
Longnose hawkfish | Joydeep Sarkar
Arc-eye hawkfish | Phalguni Ranjan
Speckled sandperch | Vardhan Patankar
Spotted sandperch | Phalguni Ranjan
Variegated lizardfish | Vardhan Patankar
Chestnut jawfish | Joydeep Sarkar
Moontail bullseye | Vardhan Patankar
Moorish idol | Phalguni Ranjan
White-margin stargazer | Joydeep Sarkar
Bubblefin wrasse | Phalguni Ranjan
Moon wrasse | Phalguni Ranjan
Tricolor parrotfish | Phalguni Ranjan
Black-blotched porcupinefish | Vardhan Patankar
Thornback cowfish | Joydeep Sarkar
Yellow boxfish | Vardhan Patankar
Golden spadefish | Vardhan Patankar
Longfin batfish | Vardhan Patankar
Orange-spotted spinefoot | Vardhan Patankar
Red lionfish | Vardhan Patankar
Devil scorpionfish | Vardhan Patankar
Weedy scorpionfish | Joydeep Sarkar
Thorny seahorse | Joydeep Sarkar
Ornate ghost pipefish | Joydeep Sarkar
Robust ghost pipefish | Vardhan Patankar
Blue-lined snapper | Vardhan Patankar
Dark-banded fusilier | Vardhan Patankar
Deep-bodied fusilier | Phalguni Ranjan
Bigeye snapper | Joydeep Sarkar
Bronze soldierfish | Vardhan Patankar
Pinecone soldierfish | Vardhan Patankar
Silverspot squirrelfish | Vardhan Patankar
Convict surgeonfish | Vardhan Patankar
Powder blue surgeonfish | Vardhan Patankar
Short-nosed unicornfish | Phalguni Ranjan
Striped surgeonfish | Phalguni Ranjan
Boomerang triggerfish | Vardhan Patankar
Clown triggerfish | Joydeep Sarkar
Harlequin filefish | Joydeep Sarkar
Titan triggerfish | Phalguni Ranjan
Bludger trevally | Vardhan Patankar
Giant trevally | Vardhan Patankar
Golden trevally juveniles | Vardhan Patankar
Warty frogfish | Joydeep Sarkar
Painted frogfish juvenile | Joydeep Sarkar
Giant frogfish | Joydeep Sarkar
Harlequin sweetlips | Vardhan Patankar
Ribboned sweetlips | Joydeep Sarkar
Harlequin sweetlips juvenile | Evan Nazareth