BLUE SPINY LOBSTER // ( Panulirus versicolor)
Kingdom: Animalia
Phylum: Arthropoda
Sub-Phylum: Crustacea
Class: Malacostraca
Order: Decapoda
Family: Palinuridae
Genus: Panulirus
Species: Panulirus versicolor
Blue Spiny lobster (Panulirus versicolor) is a special of lobster that lives in tropical reefs, commonly found in the tropical indo-Pacific region. It is one of the most common varieties of spiny lobster in Sri Lanka.
Blue Spiny lobster grows up to 40 centimetres, although it is typically no more than 30cm. Blue Spiny Lobster has no long claws and has two pairs of large antennae. Both of the antennae are double ended and usually colored white. Moreover, the body of Blue spiny lobster is commonly all patterned with azure blue stripes and their stomach is colored with white bands.
Behavior of Blue Spiny lobster is nocturnal. They tend to be solitary and aggressive with others. Blue spiny lobster is a carnivore; they consume other crustaceans, small fishes, carrion, and various arthropods. This makes them to be active at night, which includes searching for food in sand or rubble.
Blue spiny lobster can be kept at home aquariums, however extra caution is needed to keep them; this reef marine species can be destructive as it may damage fish and other corals and it must be very well fed. That is why having a large sized aquarium and putting rock caves are absolute necessary.
By: Diemas Ekakarina Prihandini
Phylum: Arthropoda
Sub-Phylum: Crustacea
Class: Malacostraca
Order: Decapoda
Family: Palinuridae
Genus: Panulirus
Species: Panulirus versicolor
Blue Spiny lobster (Panulirus versicolor) is a special of lobster that lives in tropical reefs, commonly found in the tropical indo-Pacific region. It is one of the most common varieties of spiny lobster in Sri Lanka.
Blue Spiny lobster grows up to 40 centimetres, although it is typically no more than 30cm. Blue Spiny Lobster has no long claws and has two pairs of large antennae. Both of the antennae are double ended and usually colored white. Moreover, the body of Blue spiny lobster is commonly all patterned with azure blue stripes and their stomach is colored with white bands.
Behavior of Blue Spiny lobster is nocturnal. They tend to be solitary and aggressive with others. Blue spiny lobster is a carnivore; they consume other crustaceans, small fishes, carrion, and various arthropods. This makes them to be active at night, which includes searching for food in sand or rubble.
Blue spiny lobster can be kept at home aquariums, however extra caution is needed to keep them; this reef marine species can be destructive as it may damage fish and other corals and it must be very well fed. That is why having a large sized aquarium and putting rock caves are absolute necessary.
By: Diemas Ekakarina Prihandini
NORWAY LOBSTER // Nephrops norvegicus
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Decapoda
Family: Nephropidae
Genus: Nephrops
Species: N. norvegicus
Norway lobster or Nephrops norvegicus has a typical body shape of a lobster. It has a pale orange color. Nephrops is named after the kidney-shaped eyes; Nephrops – “kidney eyes”, their eyes are highly sensitive to light. A short exposure to light can damage the retina. Although they’re sensitive to the light, Norway lobster eyes are large, black and moveable. Grows to a maximum total length of 25 cm including the tail and clawed legs. It is “the most important commercial crustacean in Europe”. Norway lobster lives in the northeastern Atlantic Ocean and parts of the Mediterranean Sea (Morocco to Lofoten). It lives at depths between 20 and 500 m. Nephrops norvegicus able to dig its burrow (hole) from 20 to 30 cm deep. They spend a lot of time hiding, especially females with roe. Typical life span of Norway lobster is 5 to 10 years. Nephrops norvegicus is a scavenger and predator. They feed on active prey; worms and fish. They catch their prey using their chelipeds/claw and walking legs. The muscular tail of Norway lobster is usually eaten. In Spain and Portugal, people eat them only on special occasions, but their price is less expensive than the common lobster.
BY: VICKY KIRKPATRICK
Phylum: Arthropoda
Subphylum: Crustacea
Class: Malacostraca
Order: Decapoda
Family: Nephropidae
Genus: Nephrops
Species: N. norvegicus
Norway lobster or Nephrops norvegicus has a typical body shape of a lobster. It has a pale orange color. Nephrops is named after the kidney-shaped eyes; Nephrops – “kidney eyes”, their eyes are highly sensitive to light. A short exposure to light can damage the retina. Although they’re sensitive to the light, Norway lobster eyes are large, black and moveable. Grows to a maximum total length of 25 cm including the tail and clawed legs. It is “the most important commercial crustacean in Europe”. Norway lobster lives in the northeastern Atlantic Ocean and parts of the Mediterranean Sea (Morocco to Lofoten). It lives at depths between 20 and 500 m. Nephrops norvegicus able to dig its burrow (hole) from 20 to 30 cm deep. They spend a lot of time hiding, especially females with roe. Typical life span of Norway lobster is 5 to 10 years. Nephrops norvegicus is a scavenger and predator. They feed on active prey; worms and fish. They catch their prey using their chelipeds/claw and walking legs. The muscular tail of Norway lobster is usually eaten. In Spain and Portugal, people eat them only on special occasions, but their price is less expensive than the common lobster.
BY: VICKY KIRKPATRICK
Japanese spider crab or Macrocheira Kaempferi can be found on the pacific area of Japan Island mostly found in Sugami, Suruga and Tosa Bays, but spider crab can also be found in Eastern Taiwan. They are famous because of their size and they are adible.
Macrocheira Kaempferi is the largest arthropods that ever known. They have orange color with white spots along the legs. They have 8 legs, and 2 huge claws. The right claw is usually the largest on the adults, the next three pairs are used for walking, and the fifth pair of legs is small and normally tucked underneath the rear portion of their carapace (the shell covering their back). For adult females, these legs are used to clean their embryos (fertilized eggs) and the male uses them to transfer sperm to the female during mating. The body (carapace) is around 37 centimeters long but the adult specimen that ever measured is around 4 meters long from the tip of their cheliped (claw-bearing leg) to the other sides. The male chelipeds are bigger than female’s. Their whole body weight was measured up to 41 pounds.
Japanese spider crab lives in the bottom of the continental shelf in sandy and rocky environment at the average depth 150-300 meters, but however they often found in depth 600 meters. They spend most of their time in swallow water (50 meters depth) in spawning season.
They’re omnivorous scavenger. Means that they get their food from dead and decaying sea animals and plants along the sea bed. They also eat living kelp and algae. Because their slow movement, they only able to catch small and easy life fishes.
Macrocheira Kaempferi doesn’t have significant communication between each others. Their antennae are greatly reduced, their eyestalks are shorts. But because they are not an active predators and do not have many enemies, their sensory system are not accurate like other decapods in the same area.
Their matting behaviors are rarely observed. Their mate seasonally during early spring. The male crab hold the sperm in spermatophores then inserted into the female’s abdomen using the first 2 chelipeds. The fertilization is internal, females carry eggs on their backs and lower bodies during incubation until they hatch it. They can lays over 1.5 million eggs/season but not all of them survive. The egg it self are around 0.63-0.85 mm. females took 10 days to hatching her eggs and breeding duration is around 1 year.
FACTS AND MYTH
· They may live over 100 years, but some reports says that kaempferi are generally can live over half of a century.
· Mariners used to tell tales of M. kaempferi dragging sailors underwater and feasting on their flesh. This is generally regarded as untrue, although it is certainly plausible that one of these crabs would feast upon the dead body of a sailor who had previously drowned.
by. Aisyah Putri Gani
Macrocheira Kaempferi is the largest arthropods that ever known. They have orange color with white spots along the legs. They have 8 legs, and 2 huge claws. The right claw is usually the largest on the adults, the next three pairs are used for walking, and the fifth pair of legs is small and normally tucked underneath the rear portion of their carapace (the shell covering their back). For adult females, these legs are used to clean their embryos (fertilized eggs) and the male uses them to transfer sperm to the female during mating. The body (carapace) is around 37 centimeters long but the adult specimen that ever measured is around 4 meters long from the tip of their cheliped (claw-bearing leg) to the other sides. The male chelipeds are bigger than female’s. Their whole body weight was measured up to 41 pounds.
Japanese spider crab lives in the bottom of the continental shelf in sandy and rocky environment at the average depth 150-300 meters, but however they often found in depth 600 meters. They spend most of their time in swallow water (50 meters depth) in spawning season.
They’re omnivorous scavenger. Means that they get their food from dead and decaying sea animals and plants along the sea bed. They also eat living kelp and algae. Because their slow movement, they only able to catch small and easy life fishes.
Macrocheira Kaempferi doesn’t have significant communication between each others. Their antennae are greatly reduced, their eyestalks are shorts. But because they are not an active predators and do not have many enemies, their sensory system are not accurate like other decapods in the same area.
Their matting behaviors are rarely observed. Their mate seasonally during early spring. The male crab hold the sperm in spermatophores then inserted into the female’s abdomen using the first 2 chelipeds. The fertilization is internal, females carry eggs on their backs and lower bodies during incubation until they hatch it. They can lays over 1.5 million eggs/season but not all of them survive. The egg it self are around 0.63-0.85 mm. females took 10 days to hatching her eggs and breeding duration is around 1 year.
FACTS AND MYTH
· They may live over 100 years, but some reports says that kaempferi are generally can live over half of a century.
· Mariners used to tell tales of M. kaempferi dragging sailors underwater and feasting on their flesh. This is generally regarded as untrue, although it is certainly plausible that one of these crabs would feast upon the dead body of a sailor who had previously drowned.
by. Aisyah Putri Gani
Batwing coral crab
Batwing coral crab is also known as queen crab, and red coral crab. Batwing coral crab gets the named because it has wide arms and it looks like a bat wing. Batwing coral crab is one of the most beautiful crab in the area, the carapace of this batwing coral crab is so smooth and heavy, with no teeth, except for a blunt one at the lower right and left hand corner. Carapace is the upper body of this crab. The color of this crab is pale to brick red with scarlet spot and have a line of whit and yellow spots and between it eyes there’s 2 antenna. Size of this crab is big, it size is 7,5 cm to 12 cm and its legs were about 4 inches long, batwing coral crab is the largest crab in Caribbean .Habitat of this batwing coral crab is Occurs on coral reefs and rocky rubble in the shallow waters. Nocturnal.
Depth ranges where batwing coral crab live is from 1 m down to 15 m.
Coral crab taxonomy is:
· Kingdom : Animalia
· Phylum : Arthropoda
· Class : Crustacea
· Order : Decapoda
· Suborder : Reptantia
· Genus : Carpilius
· Species : Carpilius corallinus
By Fabian Erlanda Nasution
Coral crab taxonomy is:
· Kingdom : Animalia
· Phylum : Arthropoda
· Class : Crustacea
· Order : Decapoda
· Suborder : Reptantia
· Genus : Carpilius
· Species : Carpilius corallinus
By Fabian Erlanda Nasution