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Aquatic Commons (37.071 recursos)

The Aquatic Commons is a thematic digital repository covering the natural marine, estuarine /brackish and fresh water environments . It includes all aspects of the science, technology, management and conservation of these environments, their organisms and resources, and the economic, sociological and legal aspects.

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Mostrando recursos 1 - 20 de 130

  1. Chaetodon melapterus (Guichenot, 1863)

    Ketabi, Ramin; Jamili, Shahla
    Chaetodon melapterus also known as Black-finned Melon Butterflyfish, Blackfin Butterflyfish and Arabian Butterflyfish is a piscine so stunningly gorgeous, but we daren’t look directly at it lest we succumb to its spell. This species is usually found in coastal reefs rich in coral growth interspersed with sand patches. C. melapterus lives in coral rich areas of shallow coastal reefs; occasionally in aggregations. They feed exclusively on coral polyps and nothing else. Maximum length is 13 cm in Persian Gulf (Kish Island, Iran). It is found at depths between 2-16 m. C. melapterus are usually encountered in pairs, but sometimes observed...

  2. Chaetodon nigropunctatus (Sauvage, 1880)

    Ketabi, Ramin; Jamili, Shahla
    Chaetodon nigropunctatus or Black-spotted Butterflyfish inhabits shallow coral reefs and sandy lagoons rich in stony coral growth at depths between 3 - 15 m and feeds mainly on stony coral polyps. We report for the first time from Persian Gulf (Kish Island, Iran). Maximum length is 15 cm in Persian Gulf (Kish Island, Iran). C. nigropunctatus is indicator species for specific coral-feeding. The butterfly fish are found to be living both in groups and as an individual. They are found swimming in groups and sometimes they swim alone until they get a partner. C. nigropunctatus is oviparous breeders and monogamous,...

  3. Pseudochromis nigrovittatus (Boulenger, 1897)

    Ketabi, Ramin; Jamili, Shahla
    Pseudochromis nigrovittatus or Dottybacks are common inhabitants of coral reefs throughout the tropical Indo-West Pacific. P. nigrovittatus inhabits equally frequently mixed communities of macroalgae and hard corals and sparse hard coral communities on rock platform, including those dominated by Acropora, Porites, Galaxea. P. nigrovittatus was recorded from a depth range of 4–20 m. Maximum length is 8 cm in Persian Gulf (Iran, Kish Island). All dottybacks are hermaphrodites. The sexes are separate. There is a possibility of sexual dimorphism in P. nigrovittatus, such that males are usually bigger than females. Color and caudal fin morphology differences have also been observed....

  4. Zebrasoma xanthurum (Blyth, 1852)

    Ketabi, Ramin; Jamili, Shahla
    Zebrasoma xanthurum, the purple tang or yellowtail tang, is a species of reef surgeonfish. Purple tangs typically inhabit coral reef ecosystems. Purple tang found in groups in coral-rich areas or on rocky bottoms Z. xanthurum show varying degrees of habitat preference and utilization of coral reef habitats, with some species spending the majority of their life stages on coral reef while others primarily utilize seagrass beds, mangroves, algal beds, and /or rocky reefs. The majority of Z. xanthurum are exclusively found on coral reef habitat, and of these, approximately 80% are experiencing a greater than 30% loss of coral reef...

  5. Blenniella periophthalmus (Valenciennes, 1836)

    Ketabi, Ramin; Jamili, Shahla
    Blenniella periophthalmus is a species of combtooth blenny found in coral reefs. It is commonly known as the blue-dashed rockskipper, bullethead rockskipper, false rockskipper, or the peppered blenny. B. periophthalmus is a marine, reef-associated species that occurs in tropical climates with a depth range of 0-5 m. We report for the first time from Persian Gulf (Kish Island, Iran).  This species inhabit exposed outer intertidal reef flats, where it can hide in cracks and holes. It is commonly observed clinging to rocks as the water recedes below them during the low cycle of the swell and this species is often confused with mudskipper gobies. Maximum length is 10...

  6. Antennablennius variopunctatus (Jatzow & Lenz, 1898)

    Ketabi, Ramin; Jamili, Shahla
    Antennablennius variopunctatus, the Orange-dotted blenny, is a species of combtooth blenny found in coral reefs in the western Indian Ocean. A. variopunctatus is unique to the intertidal area and would be overlooked in conventional reef surveys. Maximum length is 8 cm in Persian Gulf (Iran, Kish Island). There are insufficient algae on the rocks, it is important to feed more frequently and supplement with algae rich food. A. variopunctatus is oviparous, their eggs are demersal and adhesive, and are attached to the substrate via a filamentous, adhesive pad or pedestal. Larvae are planktonic, often found in shallow, coastal waters. A....

  7. Enneapterygius ventermaculus (Holleman, 1887)

    Ketabi, Ramin; Jamili, Shahla
    Enneapterygius ventermaculus, known commonly as the Blotched triplefin, is a species of triplefin blenny. They are generally coral reef inhabitants, their colouring and small size rendering them cryptic. E. ventermaculus is a demersal, marine species that occurs in subtropical climates and has a depth range of 0-12 m. New record is given from Iranian Waters of Persian Gulf (Kish Island). Maximum length is 4 cm in Kish Island male/unsexes. This is a cryptic species, found on rocky and coral reefs with encrusting algae and invertebrates. Triplefin blennies are small, large-eyed fish that live in shallow coastal waters around the world....

  8. Boloceroides mcmurrichi (Kwietniewski, 1898)

    Ketabi, Ramin; Jamili, Shahla
    Boloceroides mcmurrichi is looking like an untidy mop, this anemone is sometimes seen in sea grass areas on many of our shores. It is possibly seasonal. Sometimes, large numbers are seen (up to 10-20 animals in a trip) and then none at all. Maximum length is 2 cm in Persian Gulf (Iran, Kish Island). Tiny swimming anemones may sometimes be confused with Sea grass anemones which have translucent tentacles with tiny spots. The swimming anemone harbors symbiotic single-celled algae (zooxanthellae). The algae undergo photosynthesis to produce food from sunlight. The food produced is shared with the sea anemone, which in...

  9. Alpheus djiboutensis (De Man, 1909)

    Ketabi, Ramin; Jamili, Shahla
    Alpheus djiboutensis, a member of snapping shrimp (Family Alpheidae) live in burrows together with gobiid fishes. Maximum length is 8 cm in Persian Gulf (Iran, Kish Island). A. djiboutensis is common in sponges and corals. A. djiboutensis lives on surfaces sandy depths at depths between 2 and 15 meters symbiosis between A. djiboutensis and Cryptocentrus lutheri (our observation in Iran, Persian Gulf, Kish Island). Despite being 2 completely different animals. They often live in symbiosis. The goby build a cave into the substrate which undertakes A. djiboutensis to clean and maintain, usually the C. lutheri stands so that its tail...

  10. Alticus kirkii

    Ketabi, Ramin; Jamili, Shahla; Shahbazi, Soheil
    Distribution: Alticus kirkii has a wide distribution throughout the western Indian Ocean, including Reunion, Mozambique, Tanzania, Seychelles, and Somalia, north to the Red Sea, east to India. It was found in Kish Island & Abu Musa Island of Persian Gulf (Iranian Waters).

  11. Ecsenius pulcher (Murray, 1887)

    Ketabi, Ramin; Jamili, Shahla
    Ecsenius pulcher is an almost exclusively benthic species that inhabits tropical, marine waters. E. pulcher is found on rocky shores where it hides in crevices. Maximum standard length is 4.4 cm male/unsexed. Maximum length is 7 cm in Persian Gulf (Iran, Kish Island). Larvae are planktonic, often found in shallow coastal waters. E. pulcher can have different color patterns. Dark brown dorsally on head and body and (abruptly) white below or dark brown and posterior part of the body is orange-yellow with narrow dark bars. E. pulcher has a solid color form and one in which the melanophores have been...

  12. Plakobranchus ocellatus (van Hasselt, 1824)

    Ketabi, Ramin; Jamili, Shahla
    Plakobranchus ocellatus is a common inhabitant of shallow coral reef pools and lagoons. It is seldom seen as it is well-camouflaged, half buried in the coral sand. P. ocellatus lives in sheltered, shallow water habitats with stones or gravel and silt. Maximum length is 6-7 cm in Persian Gulf (Iran, Kish Island). It may seem puzzling that this slug has evolved a method of storing chloroplasts, but at the same time shades them from the sunlight which would allow them to photosynthesis and provide nourishment for the slug. It is a theory, which is totally untested, that P. ocellatus deliberately...

  13. Alticus kirkii (Günther, 1868)

    Ketabi, Ramin; Jamili, Shahla
    The Kirk's blenny (Alticus kirkii) is a species of combtooth blenny (family Blenniidae) in the genus Alticus. It is a tropical blenny. Adults are found in the intertidal zone of exposed rocky shores, often out of the water and down to around 2 m and often spend time out of the water. They are able to breathe air when on land. Air-breathing A. kirkii utilize both aquatic and terrestrial habitats. They actively shuttle back and forth between rock pools and air (skipper). During the day it emerges from the water to feed upon the algae growing in the splash zone...

  14. Pseudobiceros kryptos (Newman & Cannon, 1997)

    Ketabi, Ramin; Jamili, Shahla
    Pseudobiceros kryptos is usually found on colonial ascidians under rubble on the reef crest or reef slope. P. kryptos is free swimming flatworm. New record is given from Persian Gulf (Iran, Kish Island). P. kryptos is the only polyclads which actively swim with exaggerated undulations of its ruffled margin. This, along with flamboyant coloration, is thought to be aposematic or warning behavior advertising their suspected unpalatability to visual predators such as fish. P. kryptos is in part: "Background color variable; mottled olive green to lime green and white, large irregular brown and olive green spots on the margin, large irregular...

  15. Haminoea cyanomarginata (Heller & Thompson, 1983)

    Ketabi, Ramin; Jamili, Shahla
    Haminoea cyanomarginata is found in the coral rubble in shallow waters, while in the Persian Gulf it is usually seen at night, between 2-5 in of depth, on rocky surfaces covered with algae. We report for the first time from Persian Gulf (Kish Island, Iran). Maximum length is 5 mm in Persian Gulf. We can observe H. cyanomarginata only 2-3 days in March in each year in Kish Island (Iranian Waters). It has a number of distinctive color features, the most prominent being the purple edge to the parapodia, head shield, and infrapallial lobe. The body, and mantle, which can...

  16. Goniobranchus annulatus (Eliot, 1904)

    Ketabi, Ramin; Jamili, Shahla
    Goniobranchus annulatus is a species of sea slug, a very colourful dorid nudibranch, a shell-less marine gastropod mollusc. G. annulatus inhabits various sections of coral reefs, ranging from the shallow subtidal adjacent to mangrove forests up to 15 m depth near the reef crest. G. annulatus forms mating aggregations similar to those found in many sea hares. G. annulatus is simultaneous hermaphrodites. Both individuals darts their penis toward each other to induce one to act as a male and the other as the female. The victorious one to penetrate the body wall is the dominant male. Eggs are deposited on...

  17. Pseudoceros prudhoei (Newman & Cannon, 1994)

    Ketabi, Ramin; Jamili, Shahla
    Pseudoceros prudhoei is usually found on rocky or reef habitats, swimming in open waters or under coral rubble plates, where they find their prey, the ascidians. Maximum length is 5 cm in Persian Gulf (Iran, Kish Island). While some of the free-living flatworms tend to hide under rocks escaping from the sunlight, colorful polyclads usually demonstrate a very conspicuous behavior, swimming through the water column next to coral reefs. These animals actually do not need to avoid predators, because their bright color pattern works as a warning sign about their distastefulness and toxicity. None of the animals had a negative...

  18. Sabellastarte spectabilis (Grube, 1878)

    Ketabi, Ramin; Jamili, Shahla
    Sabellastarte spectabilis is commonly known as the feather duster worm, feather duster or fan worm. It has reported for the first time from Iranian waters (Kish Island) and finding in the intertidal and subtidal reefs. Especially common in sites where phytoplankton is abundant. The worm's body occupies a flexible mucus tube formed by adhesion of silt from the water column. Polychaetes, or marine bristle worms, have elongated bodies divided into many segments. Each segment may bear setae (bristles) and parapodia (paddle-like appendages). Some species live freely, either swimming, crawling or burrowing, and these are known as "errant". Others live permanently...

  19. Megalomma vesiculosum (Montagu, 1815)

    Ketabi, Ramin; Jamili, Shahla
    Megalomma vesiculosum (Giant Feather Duster Worm) has reported for the first time from Persian Gulf (Iran, Kish Island). M. vesiculosum is a polychaete worm that reaches up to 12 cm in length. It has relatively few (about 50) tentacles, each with a large eyespot at the free end. It creates a long and tough tube, which is mostly encrusted untidily with large shell fragments and small stones. The tube protudes no more than 40-50 mm (in Iran, Kish Island) from coarse sand or muddy gravel at low water and below. The body and crown vary in color from yellowish to...

  20. Cheilinus lunulatus (Forsskål, 1775)

    Ketabi, Ramin; Jamili, Shahla
    The Cheilinus lunulatus (broomtail wrasse) is a species of wrasse native to the Red Sea and Indian Ocean. It is another one of the big wrasses which has a very low abundance on the local scale and in this case a limited geographical distribution. Broomtail wrasse lives in shallow waters, but also at 2 to 30 m of depth on the outer side of the reefs. It is often going around on the sandy bottoms, at the limit of the madreporic formations, in the prairies of submerged grasslands looking for shells it crushes easily, like a nutcracker. C. lunulatus can...

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