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  • This is a newly hatched juvenile Eumicrotremus awae lumpsucker, a species found along the Pacific coast of Japan's main island of Honshu. The fish is 2mm to 3mm in size, perched on brown algae (Lessoniaceae). The white ring pattern is characteristic of juveniles, disappearing as the juvenile takes on permanent coloration. This one has already begun to adopt an orange-red hue.
    eumicrotremus-awae-juvenile-lumpsuck...tif
  • This is a newly hatched juvenile Eumicrotremus awae lumpsucker, a species found along the Pacific coast of Japan's main island of Honshu. The fish is 2mm to 3mm in size, perched on brown algae (Lessoniaceae). The juveniles retain this distinct pattern with white rings for a brief time, eventually taking on solid coloration that varies from brown and red to green, pink and other hues.
    eumicrotremus-awae-juvenile-lumpsuck...tif
  • This is a newly hatched juvenile Eumicrotremus awae lumpsucker, a species found along the Pacific coast of Japan's main island of Honshu. The fish is 2mm to 3mm in size, perched on brown algae (Lessoniaceae). The white ring pattern is characteristic of juveniles, disappearing as the juvenile takes on permanent coloration. This one has already begun to adopt a greenish hue.
    eumicrotremus-awae-juvenile-lumpsuck...tif
  • Pictured here are several clusters of Korean sandlance (Hypoptychus dybowskii) eggs, with developing embryos becoming visible in some of the eggs. Each egg is about 2mm in size. These small fish, growing up to 10cm in length, produce a sticky secretion in their kidneys that they use to adhere eggs to sargassum (Sargassum horneri (Turner) C.Agardh) as shown here.
    hypoptychus-dybowskii-eggs-korean-sa...tif
  • A sabretooth blenny (Petroscirtes breviceps) relaxing among delicate folds of brown algae Colpomenia sinuosa
    petroscirtes-breviceps-blenny-colpom...tif
  • This is a U-mark sandperch (Parapercis snyderi) poised on top of delicate folds of brown algae Colpomenia sinuosa.
    parapercis-snyderi-u-mark-sandperch-...tif
  • This is a pair of Pair of Aspasma minima clingfish hiding underneath part of a large growth of Ecklonia cava brown algae. This species is found in the northwest Pacific.
    aspasma-minima-clingfish-pair-japan-...tif
  • Two male Zoarchias major eelpouts with mouths wide open facing off in the middle of Sargassum hemiphyllum algae. The fishes blend-in well with both the coloration and texture of these brown algae and other surrounding vegetation and substrate, providing some measure of protection in the form of camouflage from larger fish patrolling the reef.
    zoarchias-major-eelpouts-fighting-sa...tif
  • Zoarchias major eelpouts engaged in competitive fighting within a mass of Sargassum hemiphyllum algae. These fish, known as ookazunagi in Japanese, blend-in well with the coloration of this and other algaes and seaweeds, providing them with some protection from predation by larger fish.
    zoarchias-major-male-eelpouts-compet...tif
  • Close-up view of developing Korean sandlance (Hypoptychus dybowskii) embryos inside eggs, each about 2mm in size. The eggs are on sargassum (Sargassum horneri (Turner) C.Agardh), stuck to the macro algae by secretions from the adult fish. Photographed at a magnification of four times life-size.
    hypoptychus-dybowskii-eggs-korean-sa...tif
  • This is a species of clingfish (Aspasma minima) that is found in the northwest Pacific. This individual was one of a pair that was living on a large growth of brown algae (Ecklonia cava). As can be seen here, the fish is capable of turning its eyes to look directly overhead.
    aspasma-minima-clingfish-japan-20210...tif
  • This is a species of clingfish (Aspasma minima) that is found in the northwest Pacific. This individual with its mouth open was one of a pair that was living on a large growth of brown algae (Ecklonia cava).
    aspasma-minima-clingfish-mouth-open-...tif
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