Tag Archives: Dumaguete

Life among the Bubbles

Bubble Coral Shrimp - Vir philippinensis
Bubble Coral Shrimp – Vir philippinensis
Bubble CoralPlerogyra sinuosa

Bubble Coral ShrimpVir philippinensis
Like all coral associated shrimps, the limit between, parasitism and mutual symbiosis, is pretty thin. Probably that the shrimp, in exchange of food and shelter, helps fight off some small parasites, such as flat worms, coral eating nudies, some sponges or algae that would compete with the corals. or even clean the coral off any detritus, sand…

Bubble CoralPlerogyra sinuosa
The vesicles resembling bubbles up to 1 in in diameter. These enlarge during the day but retract to a certain extent during the night to expose the polyps and their tentacles. It obtains most of its nutritional needs from the symbiotic dinoflagellates that live inside its soft tissues including the walls of the vesicles. These photosynthetic organisms provide the coral with organic carbon and nitrogen, sometimes providing up to 90% of their host’s energy needs for metabolism and growth. Its remaining needs are met by the planktonic organisms caught by the polyps at night.

Etymology
Vir – from Latin ‘man’
philippinensis –  Means “from the Philippines”
Plerogyra Plero from Latin ‘almost’ + gyra, alteration of Greek gŷros ‘circle’ or ’round’
sinuosa – Latin ‘winding’

Smile….Ouch

Lance Blenny - Aspidontus dussumieri
Lance Blenny – Aspidontus dussumieri

Lance BlennyAspidontus dussumieri
These are what is known as a  false cleanerfish. They are noted for their cunning mimicry of cleaner wrasses: by imitating the latter’s color, form, and behavior, these blennies are able to trick other fish (or even divers) into letting down their guard, long enough for the blennies to nip a quick mouthful of skin or scale.

Etymology:
Aspidontus: Greek, aspis, -idos = shield + Latin, dens, dentis = teeth
The specific name honors the French explorer and trader Jean-Jacques Dussumier. He is known as a collector of zoological species from southern Asia and regions around the Indian Ocean between 1816 and 1840. Dussumier’s name was lent to numerous species, and an entire genus of herrings is called Dussumieria.

Painted Shielded Horns

Thecacera picta - Nudibranch
Thecacera picta – Nudibranch

Thecacera picta – Nudibranch –
They are almost clear, you can see its internal organs through the translucent body. A characteristic feature of this genus are the long horns on its back, which can be extended and retracted. Most of the nudibranchs with feathery gills have them near the back of the body, but here they’re closer to the front.

Etymology
Thecacera. From Greek ‘theke’, a receptacle, a scabbard or sheath + ‘kerós’, horn, for the shielded rhinophores.
picta – From Latin ‘pictus’ for painted, colored, decorated

A rhinophore is one of a pair of chemosensory rod-shaped structures which are the most prominent part of the external head anatomy in nudibranchs.

Etymology
Rhinophore – relates to the function as an organ of “smell”. A mixed Latin and Greek word meaning “carrying noses” – “Rhino-” means nose from Ancient Greek ‘rhis’ and from its genitive rhinos. “Phore” means “to bear” from New Latin -‘phorus’ and from Greek -phoros “bearing”, a derivative of phérein.

BigFin Reef Squid

Big Fin Reef Squid
BigFin Reef Squid –
Sepioteuthis lessoniana

Bigfin Reef SquidSepioteuthis lessoniana – BfRS have a large oval fin that extends throughout the margins of its mantle.

  • BfRS adapt to warmer temperatures by laying more eggs, making them a good indicator species for climate change.
  • The babies resemble miniature adults and are remarkable for already having the capability to change body coloration upon hatching.
  • BfRS have the fastest recorded growth rates of any large marine invertebrate, reaching 600 g in only four months. They are a short-lived species, with a maximum recorded lifespan of 315 days.
  • Males have been observed to exhibit mating behaviors with other males. Some males have been found with numerous spermatophores embedded in their mouth funnels. Since BfRS distinguish sex by visual cues, this may be a form of deception. The smaller males (termed “female mimics” or “sneaker males”) might have assumed body patterning typical of females in order to trick larger males. Believing they are females, they will then waste their spermatophores on them.
  • BfRS are one of the most commercially important squid species, and are widely consumed as human food.

Coloration

  • Large chromatophores densely cover the upper surfaces of the head, mantle and arms with fewer on the sides.
  • BfRS are capable of metachrosis – rapidly changing body coloration and patterns through voluntary control of chromatophores.
  • They also possess iridophores that produces iridescent metallic greens and red when illuminated.
  • They are also one of two squid species with leucophores that are a reflector-type structural coloration that reflects ambient light, such that they are white in white light, green in green light, and so on.
  • BfRS are remarkable for having the ability to produce complex body patterns from the moment they hatch.

Etymology:
Sepioteuthis – Greek for “cuttlefish squid”
lessoniana: Named after René Primevère Lesson who was a 19th century French botanist and surgeon who collected it off the coast of New Guinea during the circumnavigational voyage of the French corvette La Coquille (1822–1825).

LeftEye Flounder

Intermediate Flounder - Asterorhombus intermedius
Intermediate Flounder – Asterorhombus intermedius

Intermediate FlounderAsterorhombus intermedius  
Lefteye flounders are a family, Bothidae, of flounders. They are called “lefteye flounders” because most species lie on the sea bottom on their right sides, with both eyes on their left sides.

A helpful reminder when trying to recall the family name for this fish is that:

“Bothidae (Both o’ dey) eyes are on the same side o’ dey head.”

Etymology:

  • Asterorhombus: Greek, aster = “star” + Greek, rhombos = “paralelogram”
  • intermedius Latin “intermediate”, used in medical names and descriptions of structures in the body that are between two other structures

Hardest hitters on Earth.

Not Muhammad Ali – The Peacock Mantis Shrimp

Peacock Mantis Shrimp - Odontodactylus Scyallarus
Peacock Mantis Shrimp – Odontodactylus Scyallarus

Peacock Mantis ShrimpOdontodactylus Scyallarus – a smasher, with club-shaped raptorial appendages. An active hunter, it prefers gastropods, crustaceans, and bivalves, and will repeatedly smash its prey until it can gain access to the soft tissue for consumption. It is reported to have a “punch” of over 50 miles per hour, this is the fastest recorded punch of any living animal.

Here is an interesting read about their clubbing arms:

The stomatopod dactyl club: a formidable damage-tolerant biological hammer. The dactyl clubs exhibit an impressive set of characteristics adapted for surviving high-velocity impacts on the heavily mineralized prey on which they feed. Consisting of a multiphase composite of oriented crystalline hydroxyapatite and amorphous calcium phosphate and carbonate, in conjunction with a highly expanded helicoidal organization of the fibrillar chitinous organic matrix, these structures display several effective lines of defense against catastrophic failure during repetitive high-energy loading events.

Mantis Shrimp Eyes are also Highly unique in the animal kingdom.
Its specialized eyes can pick up several types of light, including infrared and ultraviolet, and its color vision tops ours. It can also see a type of polarized light that no other animal is known to be able to detect. The key to the extraordinary vision is in the structure of its eyes, which consist of six rows of numerous smaller eyes called ommatidia. It is the way the way light-sensing cells in some ommatidia are arranged. They sit at just the angle to convert circularly polarized light (CPL)–a type of light wave that travels in a spiral–to a form that other cells underneath can detect.

Etymology:

  • Odonto from Greek “having teeth” and Greek daktylos “finger, toe”
  • Scyllarus from Greek skyllaros, kyllaros “hermit crab” + -idae

Renate Khalaf’s Cleaner Shrimp

Renate Khalaf's Cleaner Shrimp - Urocaridella renatekhalafae
Renate Khalaf’s Cleaner Shrimp – Urocaridella renatekhalafae

Renate Khalaf’s Cleaner ShrimpUrocaridella renatekhalafae – a clear cleaner shrimp in the family Palaemonidae. It was identified as a species new to science in 2018, and was named in honor of the discoverer’s mother, Renate Khalaf.

Two important notes:
1. Shows that not everything you see has been identified yet
2. That you can name thing for your mom.

Etomology – Oura Greek meaning “tail” and Latin Carid meaning “crustacean”

Spotted Porcelain Crab

Spotted Porcelain Crab, Neopetrolisthes maculata

Spotted Porcelain Crab –  Neopetrolisthes maculata, lives as commensal in large sea anemones. Sitting among the stinging tentacles and filtering planktonic food from the currents.

Entomology Neopetrolisthes – neo Greek for “new”, petro – Latin & Greek for “rock”, olisthes – L & G for “slippery”
Entomology Maculata comes from the Latin root macula, meaning “spot, stain”

Ambon Crinoid Shrimp a master class in camouflage

Amboinensis Crinoid Shrimp - Periclimenes amboinensis
Amboinensis Crinoid Shrimp – Periclimenes amboinensis

Ambon Crinoid Shrimp or Feather Star ShrimpPericlimenes amboinensis – Hiding among the arms of the crinoid this little shrimp wondered if I could see him.

Small in size, between 1 – 1.5 cm, they can be highly variable in colors – Yellow, White,Black,Blue,Orange,Green,Brown and in combination of colors, all depending on the host Crinoid that it lives on, for camouflage.

Crinoids, also known as “feather stars” or comatulids are harmless, colorful creatures. They are among the most ancient and primitive of ocean invertebrates. Crinoids are Echinoderms (Phylum Echinodermata, meaning “spiny skin”). To feed, they extend their arms to catch bits of plankton or detritus (waste matter) passing in the current, making them “suspension feeders”.

Etymology of amboinensis Means “from Ambon” the island in the Lesser Sunda Islands, Indonesia.

Etymology of Crinoid – Greek word krinon, “a lily”, and eidos, “form”

Whitemargin Stargazer Fish

WhitemMargin Stargazer - Uranoscopus sulphureus
Whitemargin Stargaser look’n up at ya

Whitemargin Stargazer fishUranoscopus sulphureus – Stargazers are not a fish to mess with. They have double-grooved poison spines behind the operculum and above the pectoral fins and wounds can be quite serious. Stargazer possess electric organs located in a specialized pouch behind the eyes and can discharge up to 50 volts, depending on the temperature of the water at the time! Because stargazers are ambush predators which camouflage themselves and some can deliver both venom and electric shocks, they have been called “the meanest things in creation”. The fish is often locally known as the mother-in-law fish.

Inhabits reef flats but is rarely seen because it lies buried in the bottom most of the time, with only the eyes showing. When buried, the cirri on the edge of the mouth serve to keep out the sand during respiration. The oral lure is used to attract the prey within striking range of the mouth.

This little fellow was only about 15cm long but they get to a maximum length of 45.0 cm.

Etymology: Uranoscopus: Greek, ouranos = sky + Greek skopein = to watch