A Perfect Planet

Common dolphin

Delphinus delphis

Port St. Johns, Eastern Cape, South Africa

Though the main underwater baitball sequence was filmed in Port St Johns, topside shots of common dolphins and cape gannets were filmed, from boat and by drone, in Algoa Bay: "In addition to the underwater drama of a baitball, we also wanted to get the build-up and action above water... and for this Port St Johns was definitely not the place. The good underwater visibility at this spot means it's very popular with tourists and divers... For this above-water perspective, the Oceans team decided on Port Elizabeth, over 600 kilometres further down the coast" (A Perfect Planet book)

Cape gannet

Morus capensis

Port St. Johns, Eastern Cape, South Africa

Roger Horrocks' instagram

Pacific chub mackerel

Scomber japonicus

Port St. Johns, Eastern Cape, South Africa

Perfect Planet book suggests underwater baitball shots were of sardines; but other sources (including the narration itself) make it clear these are mackerel. Visual ID that these are either chub mackerel or horse mackerel, both baitfish found in South Africa. They are both distinguished from sardines (such as the South African pilchard, the main species in sardine runs) by their larger bodies and brighter yellow tails. The cape horse mackerel has "no distinctive markings apart from a small, black spot on edge of its operculum near the upper angle", which isn't really visible in the shots; so, I'm leaning towards this being the Pacific chub mackerel, which is "absent from the Indian Ocean except for South Africa from KwaZulu-Natal to Western Cape, and are replaced by the closely related Atlantic chub mackerel in the Atlantic." (https://en.wikipedia.org/wiki/Chub_mackerel)

Copper shark

Carcharhinus brachyurus

Port St. Johns, Eastern Cape, South Africa

Likely a copper shark based on colouration, though at least one individual has a black mark on the bottom tip of its tail (03:46), which is inconsistent with this speciess

Fernandina marine iguana

Amblyrhynchus cristatus cristatus

Fernandina Island, Galápagos, Ecuador

Flightless cormorant

Nannopterum harrisi

Fernandina Island, Galápagos, Ecuador

Galápagos sea lion

Zalophus wollebaeki

Fernandina Island, Galápagos, Ecuador

Flamboyant cuttlefish

Metasepia pfefferi

Lembeh Strait, Indonesia

Location taken from "A Perfect Planet" book

Common eider

Somateria mollissima

Saltstraumen Strait, Norway

Blue mussel

Mytilus edulis

Saltstraumen Strait, Norway

"The blue mussel that grow along our coastline are of the species Mytilus edulis, also known as the common mussel. But we also have Mytilus galloprovincialis and Mytilus trotsulus, which is siblings to Mytilus edulis. These species have distinct distributions but may hybridize if they are present at the same locality. How the distributions are in Saltstraumen, is impossible to say as it has not been done any research on this. Most likely, Mytilus edulis is the dominant species of mussels in the Saltstraumen marine protected area, as this is a mussel that naturally belongs in the North Atlantic. Mytilus galloprovincialis is from the Mediterranean Sea, and Mytilus trotsulus originates in the northern part of the Pacific Ocean." Source: https://www.facebook.com/saltstraumvern/posts/265486501641910/

Brown garden eel

Heteroconger longissimus

Bahamas

Rosy razorfish

Xyrichtys martinicensis

Bahamas

Common bottlenose dolphin

Tursiops truncatus truncatus

Bahamas

Southern stingray

Hypanus americanus

Bimini, Bahamas

Lemon shark

Negaprion brevirostris

Bimini, Bahamas

https://www.bbc.co.uk/programmes/articles/4C7Z6rw936Qjzx0Q2nvKZWP/a-perfect-planet-gallery?

Convict tang

Acanthurus triostegus

Guam, Micronesia

Book location + "The Oceans episode introduces us to the animals of Norway and Guam, as well as returning to the Galápagos."

Whitespotted surgeonfish

Acanthurus guttatus

Guam, Micronesia

Reef manta ray

Mobula alfredi

Guam, Micronesia

The reef manta ray has a dark dorsal side with usually two lighter areas on top of the head, looking like a nuanced gradient of its dark dominating back coloration and whitish to greyish, the longitudinal separation between these two lighter areas forms a kind of Y. While for the oceanic manta ray, the dorsal surface is deep dark and the two white areas are well marked without gradient effect. The line of separation between these two white areas form meanwhile a "T".

Hardyhead silverside

Atherinomorus lacunosus