Spirobranchus corniculatus | |
---|---|
Surat Thani, Thailand, 2023 | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Annelida |
Clade: | Pleistoannelida |
Clade: | Sedentaria |
Order: | Sabellida |
Family: | Serpulidae |
Genus: | Spirobranchus |
Species: | S. corniculatus |
Binomial name | |
Spirobranchus corniculatus (Grube, 1862) | |
Spirobranchus corniculatus, commonly referred to as the Indo-Pacific Christmas tree worm, is a species of tube-building annelid fanworms in the family Serpulidae. [1] [2] Belonging to the class Polychaeta, it is recognized for its bristle-like tentacles and the presence of a structure called radioles. It is widely encountered and recognized for its unique resemblance to a conifer and its diverse array of colors. [3] Initially presumed to be part of a species group including Spirobranchus cruciger and Spirobranchus gaymardi , it has been determined to be a singular, morphologically adaptable species inhabiting the Central Indo-Pacific region. [4]
The Christmas tree worm is very vibrant in color and changes its color based on depth, camouflage, and a scare tactic. [5] It has bright spiral rings around its body segments or radioles, which can number more than 200 segments. [6] The body is abnormally large, ranging up to 45 mm (1.8 in) long and 0.5 mm (0.020 in) wide. [6]
The species predominantly engages in reproduction throughout its lifespan. Males use their coloration to attract females. [5] During mating, females emit a pheromone that signals males to release sperm. In turn, females release eggs; this action is called spawning. [7] Larvae are characterized by an elongated body. [8] The species also uses its color to make predators second guess their meal. The species primarily consumes suspended food particles, phytoplankton, and microalgae. [5]
Spirobranchus corniculatus can be found in the tropical Indo-Pacific, specifically in corals such as Porites lobata , which are typically found in Hawaiian waters. [6] The Christmas tree worm inhabits depths of 3–30 m (9.8–98.4 ft) [8] and can also be found living on almost every species of coral. [5] It is mostly encountered in the eastern side of the globe, spanning Southeast Asia, the Indian Ocean, the central Pacific, and the northern region of Australia. [5]
Porites is a genus of stony coral; they are small polyp stony (SPS) corals. They are characterised by a finger-like morphology. Members of this genus have widely spaced calices, a well-developed wall reticulum and are bilaterally symmetrical. Porites, particularly Porites lutea, often form microatolls. Corals of the genus Porites also often serve as hosts for Christmas tree worms.
Spirobranchus giganteus, commonly known as the Christmas tree worm, is a tube-building polychaete worm belonging to the family Serpulidae. The S. giganteus lives in coral reefs in the Indo-Pacific region to the Caribbean.
Bispira brunnea, the social feather duster or cluster duster, is a species of marine bristleworm. They tend to live in groups of individuals, and are common off the Caribbean islands in southeast North America. The feather duster has one crown of various colors, however, the color of the crown seems to be consistent within individual colonies.
The Coral Triangle (CT) is a roughly triangular area in the tropical waters around Indonesia, Malaysia, Papua New Guinea, the Philippines, Solomon Islands, and Timor-Leste. This area contains at least 500 species of reef-building corals in each ecoregion. The Coral Triangle is located between the Pacific and Indian oceans and encompasses portions of two biogeographic regions: the Indonesian-Philippines Region, and the Far Southwestern Pacific Region. As one of eight major coral reef zones in the world, the Coral Triangle is recognized as a global centre of marine biodiversity and a global priority for conservation. Its biological resources make it a global hotspot of marine biodiversity. Known as the "Amazon of the seas", it covers 5.7 million square kilometres (2,200,000 sq mi) of ocean waters. It contains more than 76% of the world's shallow-water reef-building coral species, 37% of its reef fish species, 50% of its razor clam species, six out of seven of the world's sea turtle species, and the world's largest mangrove forest. In 2014, the Asian Development Bank (ADB) reported that the gross domestic product of the marine ecosystem in the Coral Triangle is roughly $1.2 trillion per year and provides food to over 120 million people. According to the Coral Triangle Knowledge Network, the region annually brings in about $3 billion in foreign exchange income from fisheries exports, and another $3 billion from coastal tourism revenues.
Cephalopholis argus, the peacock hind, roi, bluespotted grouper, and celestial grouper, is a species of marine ray-finned fish, a member of the subfamily Epinephelinae, the groupers, and part of the family Serranidae, which also includes the anthias and sea basses. They come from the Indo-Pacific which is variously a commercial gamefish, an invasive species, and occasionally an aquarium resident. Its species name comes from its resemblance to the "hundred staring eyes" of the monster Argus who had a hundred eyes and was the shepherd of the goddess Hera in Greek mythology.
Arothron meleagris, commonly known as the guineafowl puffer or golden puffer, is a pufferfish from the Indo-Pacific, and Eastern Pacific. It is occasionally harvested for the aquarium trade. It reaches 50 cm in length.
Sufflamen bursa, sometimes known as Lei Triggerfish, bursa triggerfish, scythe triggerfish or boomerang triggerfish, is a triggerfish from the Indo-Pacific. Its name is derived from the two markings behind its eyes that wrap around the fish similar to a Hawaiian Lei. The color of these markings changes depending on the fish's mood, in which case the colors may alter from yellow, dark brown, and black. It is a species of reef fish found in reef ecosystems in the Indo-Pacific, including Japan, Australia, and Hawaii. It occasionally makes its way into the aquarium trade.
The bird wrasse, Gomphosus varius, is a species of the wrasse family.
Halichoeres chrysus, commonly called the canary wrasse, golden wrasse or yellow wrasse, is a fish species in the wrasse family native to central Indo-Pacific area.
A radiole is a heavily ciliated feather-like tentacle found in highly organized clusters on the crowns of Canalipalpata. Canalipalpata is an order of sessile marine polychaete worms consisting of 31 families. These benthic annelid tube worms employ radioles primarily for alimentation. While their primary role is to function as an organ for filter feeding, radioles also serve as respiratory organs. Because of their role in gas exchange, radioles are often referred to as "gills".
The barred thicklip wrasse is a species of fish belonging to the wrasse family, native from the Indo-Pacific.
Sabellastarte spectabilis is a species of benthic marine polychaete worm in the Sabellidae family. It is commonly known as the feather duster worm, feather duster or fan worm. It is native to tropical waters of the Indo-Pacific but has spread to other parts of the world. It is popular in aquariums because of its distinctive appearance and its ability to remove organic particles and improve water quality.
Pavona duerdeni, the porkchop coral, is a coral that forms clusters of cream-colored lobes or discs. They grow in large colonies, divided into ridges or hillocks. The coral is considered to be uncommon due to its low confirmed abundance, yet they are more commonly found in Hawaii, the Indo-Pacific, and the Tropical Eastern Pacific. They make up some of the largest colonies of corals, and have a slow growth rate, as indicated by their dense skeletons. Their smooth appearance is due to their small corallites growing on their surface.
Centropyge fisheri, the orange angelfish, whitetail angelfish, damsel angelfish, yellowtail angelfish, Hawaiian flame angelfish, Fisher’s angelfish, Fisher’s dwarf angelfish or Fisher’s pygmy angelfish, is a species of marine ray-finned fish, a marine angelfish belonging to the family Pomacanthidae. It is found in the Indo-Pacific region.
Stylophora pistillata, commonly known as hood coral or smooth cauliflower coral, is a species of stony coral in the family Pocilloporidae. It is native to the Indo-Pacific region and is commonly used in scientific investigations.
Heteropsammia cochlea, also known as walking dendro, is a species of small solitary coral in the family Dendrophylliidae that is native to the Indo-Pacific area.
Chrysopetalidae is a family of polychaete worms. The body is short or elongated, with few or numerous segments. All segments bear on their dorsal side a fan or a transverse row of paleae. The cephalic lobe has tentacles and eyes and the buccal segment has two or four tentacular cirri on each side. The parapodia are uniramous or biramous, with dorsal cirri upon all segments. The ventral bristles are compound.
Acropora clathrata, commonly known as lattice table coral is a species of stony corals belonging to the family Acroporidae. They are a zooxanthellate coral, which are generally found in fringing reefs, sheltered reefs and back reef habitats, between the depths of 5–40 m (16–131 ft). Its size varies according to the depth at which they are found, with members of the species that have larger surface areas typically found at greater depths.
Dictyosphaeria versluysii is a species of green algae in the family Siphonocladaceae. This species is indigenous to Indonesia, with a world distribution ranging from the Pacific regions and extending to the Indian Ocean. It can be found in various countries including Mexico, China, Thailand, Vietnam, the Philippines, Australia, and Hawaii.
Loimia medusa, commonly known as the spaghetti worm or medusa worm, is an aquatic species of annelid belonging to the family Terebellidae.