11 pictures found
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Worm (Bonellia viridis). It is a species of marine worm known for the exceptional sexual dimorphism it presents: the female has its body divided into
© Sergio Hanquet / Biosphoto
© Sergio Hanquet / Biosphoto
Worm (Bonellia viridis). It is a species of marine worm known for the exceptional sexual dimorphism it presents: the female has its body divided into two parts, the proboscis and the trunk. The trunk, which has a canal in the middle, ends in a wavy fork and can measure up to 1 meter in length; The trunk has a globose appearance and measures between 5 and 15 cm approximately. The male cannot be seen with the naked eye since it usually measures between 2 and 4 mm, has a flat body and no trunk. Marine invertebrates of the Canary Islands. Tenerife.
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Twilight zone around S pass, seascape in the middle of the mesophotic zone at a depth of 85 metres, Mayotte
© Gabriel Barathieu / Biosphoto
© Gabriel Barathieu / Biosphoto
Twilight zone around S pass, seascape in the middle of the mesophotic zone at a depth of 85 metres, Mayotte
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Gray seal (Halichoerus grypus) in the middle of laminaria around the island of molene in the Marine Natural Park of Iroise. Brittany, France
© Yves Lefèvre / Biosphoto
© Yves Lefèvre / Biosphoto
Gray seal (Halichoerus grypus) in the middle of laminaria around the island of molene in the Marine Natural Park of Iroise. Brittany, France
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The marine environment, Conservatory of the coastline panel,
© Jean-Philippe Vantighem / Biosphoto
© Jean-Philippe Vantighem / Biosphoto
The marine environment, Conservatory of the coastline panel, Guadeloupe
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Reproduction of a blue mussel ; This shell has a reproductive system with separate sexes: male or female. Ejaculation gametes is done by exhaling
© Christian Vidal / Biosphoto
© Christian Vidal / Biosphoto
Reproduction of a blue mussel ; This shell has a reproductive system with separate sexes: male or female. Ejaculation gametes is done by exhaling siphon near the fringe of the mantle. Fertilization occurs in the marine environment.
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Pacific Oysters ; Non-native oyster original Japanese, is introduced in France from 1966. The spat comes from marine capture on limed tiles, or grown
© Christian Vidal / Biosphoto
© Christian Vidal / Biosphoto
Pacific Oysters ; Non-native oyster original Japanese, is introduced in France from 1966. The spat comes from marine capture on limed tiles, or grown in hatcheries with the capture of larvae (or eyed) is on the broken shells so they do not clump together. This is followed by selection and calibration. The seed is sold to the size of 12 to 15 mm.
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Oyster spawning phase ; The oyster is male or female. The genital products (eggs or sperm) are contained in a pouch called gonad.
© Christian Vidal / Biosphoto
© Christian Vidal / Biosphoto
Oyster spawning phase ; The oyster is male or female. The genital products (eggs or sperm) are contained in a pouch called gonad. Fertilization occurs in the marine environment. Non-native oyster original Japanese, is introduced in France from 1966. It is an invasive oyster, it covers more than 98% of French production. France is the European leader.
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Learning scuba diving France ; Importance of communication in the
© Jean Cassou / Biosphoto
© Jean Cassou / Biosphoto
Learning scuba diving France ; Importance of communication in the submarine environment
© Brandon Cole / Biosphoto
Barracuda chassant au milieu d'un Herbier sous-marin Belize
© Brandon Cole / Biosphoto
Coquillage au milieu d'un herbier sous-marin Belize
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Colonie de Manchots royaux de la Baie du Marin ; Au milieu se trouve des installations techniques de la base française
© Frédéric Pawlowski / Biosphoto
© Frédéric Pawlowski / Biosphoto
Colonie de Manchots royaux de la Baie du Marin ; Au milieu se trouve des installations techniques de la base française