What are the types of marine zooplankton?

Plankton includes two major groups: phytoplankton and zooplankton.

Plankton can be divided into 6 groups based on their size.

Phytoplankton: Most of them are single-celled plants, of which diatoms are the most, as well as dinoflagellates, green algae, cyanobacteria, golden algae, etc.

Zooplankton: includes most of the phyla invertebrates, such as protozoa, coelenterates (all kinds of jellyfish), rotafers, crustaceans, gastropod molluscs (pteropods and heteropods), hairy jaws, lower chordates (planktonic tails and sea bottles), as well as floating eggs and planktonic larvae of various animals.

1. Jiawan porpoise: Jiawan porpoise inhabits a narrow range and is accustomed to warm water areas.

2. Dugong: Dugong has the title of "mermaid", which is very similar to manatee, and is currently mainly distributed in tropical sea areas. Dugongs are very slow to move and have high water quality requirements.

3. Bluefin tuna: Bluefin tuna is mainly distributed in the Pacific Ocean and the Atlantic Ocean, and they inhabit different depths and like to move in groups.

4. Blue whale: The blue whale is currently the largest creature in the world, with a daily diet of more than 4 tons, and its heaviest weight can reach more than 200 tons.

5. Hawksbill turtles: Hawksbill turtles are relatively large in size, with an average of more than meters, and scales are also distributed on the forehead.

Marine animals are a general term for heterotrophic organisms in the ocean, and there are many phyla, which can be divided into marine invertebrates, marine protochordates and marine vertebrates. The main phyla of marine invertebrates: protozoa, sponges, coelenterates, flattened animals, neomorphs, nematozoa, annelids, molluscs, arthropods.

Brachiopods, whiskers, etc.

What are the marine animals.

Marine protochordates are a group of animals that are intermediate between marine invertebrates and marine vertebrates, all of which are seafood, including caudal chordates such as sea squirts. Chordates, such as the Wenchang fish.

Marine vertebrates include marine fish and reptiles.

Birds, mammals.

Among them, marine fishes are roundmouthed, cartilaginous fishes and bony fishes. Marine reptiles include leatherback turtles, turtles, sea snakes, etc.

Marine birds such as albatrosses.

Shearwaters, petrels, boobies, ** birds and puffins, etc.

The species of marine animals such as turtles, whales, starfish, jellyfish, seahorses, seals, etc. are very complex, almost all the phylum and class of terrestrial animals, and the Zen pants finch have representative species in the ocean, and marine animals can be divided into zooplankton, swimming animals and benthic animals from the living habits.

1. Marine invertebrates

The number of species and phyla is the most numerous, accounting for the vast majority of marine animals. The main phyla are: protozoa (protozoa), sponge (porifera), coelenterate (coelenterata), flattened (platyhelminthes), nemertinea, nemathelminthes, annelida, mollusca, arthropods (arthropoda) , brachiopods (brachio-poda), hairy-jawed animals (chaetognatha), whiskered brachiopods (pogonopho-ra), echinoderms (echinodermata) and hemichordates (hemichor-data), etc.

Among them, brachiopods, hairy-jawed animals, whiskered wrists, echinoderms, and hemichordates are endemic phylum in the ocean.

2. Marine protochords

Protochordates are a group of animals that are intermediate between marine invertebrates and marine vertebrate pure oranges. Protochordates are all seafood, including urochordata, such as sea squirts (ascidia); cephalochordata, such as branchiostoma. In the past, it belonged to the protochord group, but now most scholars advocate putting it in invertebrates.

3. Marine vertebrates

These include marine fish, reptiles, birds, and mammals. Among them, marine fish are cyclostomata, chondrichthyes and osteichthyes. Marine reptiles include leatherback turtles (dermochelidae), such as leatherback turtles (dermochelys); Sea turtles (cheloniidae), such as loggerhead sea turtles (Carettta) and hawksbill turtles (Eretmochelys) Marine animals.