Portal:Marine life

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Marine life is concerned with the plants, animals and other organisms that live in the ocean. Given that in biology many phyla, families and genera have some species that live in the sea and others that live on land, marine biology classifies species based on the environment rather than on taxonomy. For this reason marine life encompasses not only organisms that can only live in a marine environment, but also those whose lives revolve around the sea.
At a fundamental level, marine life helps determine the very nature of our planet. Marine organisms produce much of the oxygen we breathe and probably help regulate the earth's climate. Shorelines are in part shaped and protected by marine life, and some marine organisms even help create new land.
Marine biology covers a great deal, from the microscopic, including plankton and phytoplankton, which can be as small as 0.02 micrometres and are both hugely important as the primary producers of the sea, to the huge cetaceans (whales, dolphins and porpoises) which reach up to a reported 33 metres (109 feet) in length in the case of the blue whale.



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Carcinus maenas.jpg

Carcinus maenas is a common littoral crab, and an important invasive species. It is listed among the 100 "world's worst invasive alien species".

C. maenas is known by different names around the world. In the British Isles, it is generally referred to simply as the shore crab. In North America and South Africa, it bears the name green crab or European green crab. In Australia and New Zealand, it is referred to as either the European green crab or European shore crab.

C. maenas has a carapace up to 60 mm long and 90 mm wide, with five short teeth along the rim behind each eye, and three undulations between the eyes. The undulations, which do not protrude beyond the eyes are the simplest means of distinguishing C. maenas from the closely-related C. aestuarii, which can also be an invasive species. In C. aestuarii, the carapace lacks any bumps and extends forward beyond the eyes. The other character for distinguishing the two species is the form of the first and second pleopods (collectively the gonopods), which are straight and parallel in C. aestuarii, but curve outwards in C. maenas .

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George Boulenger.

George Albert Boulenger (born Brussels, Belgium, October 19, 1858 died Saint Malo, France, November 23, 1937) was a British zoologist.

Boulenger was the only son of Gustave Boulenger, a Belgian public notary, and Juliette Piérart de Valenciennes. He graduated in 1876 from the Free University in Brussels with a degree in natural sciences and worked for a while at the Museum of Natural History of Brussels as an assistant naturalist studying amphibians, reptiles, and fishes. He also made frequent visits during this time to the Muséum National d'Histoire Naturelle in Paris and the British Museum in London.

In 1880, he was invited to work at the Natural History Museum by Dr. Albert C. L. G. Günther and assigned to the task of cataloguing the amphibians in the collection. His position in the British Museum meant that he had to be a civil servant of the British Empire, and so became a naturalized British subject. In 1882 he became a first-class assistant in the Department of Zoology and remained in that position until his retirement in 1920.

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Did you know...

Light microscopy image of the undescribed species of Spinoloricus that is living in anoxic environment (Stained with Rose Bengal). Scale bar is 50 μm.
Titan triggerfish.jpg
  • Triggerfishes are the brightly coloured fishes of the family Balistidae. (pictured)
  • The sea otter often keeps a stone tool in its armpit pouch.

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Magellanic penguin (Spheniscus magellanicus) near Punta Arena, Chile.
Photo credit: User:Nhobgood

Ocellaris clownfish often live symbiotically with the Heteractis magnifica sea anemone, using them for shelter and protection.

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Marine Life Categories

Major Fields of Marine Biology: Marine Biology - Ecology - Zoology - Animal Taxonomy

Specific Fields of Marine Biology: Herpetology - Ichthyology - Planktology - Ornithology

Biologists: Zoologists - Algologists - Malacologists - Conchologists - Biologists - Marine Biologists - Anatomists - Botanists - Ecologists - Ichthyologists

Organisms:

Plants: Algae - Brown Algae - Green Algae - Red Algae - Sea Vegetables -

Invertebrates: Cnidarians - Echinoderms - Molluscs - Bivalves - Cephalopods - Gastropods

Fish: Fish - Bony fish - Lobe-finned fish - Ray-finned fish - Cartilaginous fish - Electric fish - Fish diseases - Rays - Sharks - Extinct fish - Fictional fish - Fisheries science - Fishing - Fishkeeping - Live-bearing fish

Reptiles and Amphibians: Marine reptiles - Sea turtles - Mosasaurs - Sauropterygia

Mammals: Marine mammals - Cetaceans - Pinnipeds - Sirenians

Miscellaneous: Aquaria - Oceanaria - Agnatha - Endangered species - Aquatic biomes - Ecozones - Aquatic organisms - Cyanobacteria - Dinoflaggellates

Marine Life Topics

Ocean zones: Photic zoneAphotic zonePelagic zoneNeritic zoneLittoral zoneSublittoral zoneBenthic zone
Plants and Algae: AlgaeBrown algaeRed algaeGreen algaeSeagrassPhytoplankton
Invertebrates: SquidCuttlefishCrabsLobstersStarfish Cscr-featured.svgSea UrchinJellyfishPortuguese man o' warCorals Symbol support vote.svgTunicates Symbol support vote.svg
Fish: LampreysJawless fishCartilagenous fishBony fishSharksRaysSkatesCoelacanthsLungfishPlacodermiLobe-finned fishRay-finned fishSturgeonsGarsEelsHerringsSalmonTroutLancetfishAnglerfishToadfishCodsFlyingfishSeahorsesFlatfishScorpionfishCichlids
Reptiles: CrocodilesAlligatorsCaimanGharialTurtlesSea turtlesLeatherback turtleMarine iguanaSea snakes Symbol support vote.svg
Birds: PenguinsSea gullsKittiwakesAlbatrosses Cscr-featured.svgSea ducksCormorantsSea eagleGuillemotsPuffinsAuksTernsGannetsOsprey Symbol support vote.svgRazorbillOystercatchers
Mammals: MonotremesMarsupialsCetaceansWhalesDolphinsPorpoisesPinnipedsWalruses Symbol support vote.svgTrue sealsFur sealsSea LionsSireniansManateesDugongs Symbol support vote.svgPolar bear Symbol support vote.svgSea otter Cscr-featured.svgMarine otterBlubber
Cscr-featured.svg Represents a Featured article, Symbol support vote.svg Represents a Good article


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