Cambaroides Similis

Cambaroides Similis

Cambaroides Similis

Kingdom:     Animalia
Phylum:     Arthropoda
Subphylum:     Crustacea
Class:     Malacostraca
Order:     Decapoda
Family:     Cambaridae
Genus:     Cambaroides
Species:     Cambaroides Similis

Local Name : Korean Freshwater Crayfish

Habitat : China and Korea

Water Temperature : 7°C during spring, 16°C during summer, 13°C during autumn, and frozen from December to March

pH range of 6.4-6.7

Turbidity range of 0.4-1 NTU

DO demand of >7.9 ppm

Size in Natural : 3 and 8 cm

This species is known to occur in China, North Korea and South Korea. It inhabits mountain valleys from South Korea, most areas of North Korea, and Liao-dong Peninsula in China (T. Kawai pers. comm. 2008).

This species is known to occur in lotic habitats, including small streams which are surrounded by trees with a large quantity of fallen vegetation, but may also occur in small brooks or puddles. This species prefers clear water, has a biological oxygen demand of <1 parts per million, a dissolved oxygen demand of >7.9 ppm, a pH range of 6.4-6.7, and turbidity range of 0.4-1 NTU. Water temperature is usually 7°C during spring, 16°C during summer, 13°C during autumn, and frozen from December to March. Maximum carapace lengths of females and males are approximately 3 and 4 cm, respectively (Nisimura and Masanobu 2008).

Cambaroides Similis Male

Cambaroides Similis Egg

Cambaroides Schrenckii

Cambaroides Schrenckii

Cambaroides Schrenckii

Kingdom:     Animalia
Phylum:     Arthropoda
Subphylum:     Crustacea
Class:     Malacostraca
Order:     Decapoda
Family:     Cambaridae
Genus:     Cambaroides
Species:     Cambaroides Schrenckii

Local Name :

Habitat : China and Russian Federation

Water Temperature : 

Cambaroides schrenckii has been assessed as Data Deficient. There are a number of potential threats affecting this species such as water pollution and crayfish plague. However little is known on the distribution of this species or the impact these threats are having on the population. Further research is needed on the impact of these threats on population numbers, along with further studies to determine true range before a more accurate assessment of conservation status can be made.

There is no population information available for this species. However, it has been suggested that the density of juveniles is less than 50 per m2 and adults are 3-7 individuals per m2 (T. Kawai pers. comm. 2008).

This species seems to be restricted to lentic water in flats and open rivers, lakes, or dead channels, to a depth of approximately 1 m. It is also known to occur in brackish water such as coastal areas of the Amurskii Liman (Y. Machino pers. comm. 2009). On Sakhalin Island, its optimal water temperature is around 19ºC and pH is 6.5-7.0 (Labai 2005). It inhabits mesotrophic or oligotrophic conditions, silt or sand substrate, usually covered by detritus and vegetation snags (T. Kawai pers. comm. 2008). Floating plants may also occur on the surface of the habitat, and emergent plants or sub-emergent plants dominate in shallow areas (T. Kawai pers. comm. 2008). Gammarid amphipods and snails are known to cohabit with this species. Adult females and males mate during October, females are ovigerous laying 200-240 eggs in spring (T. Kawai pers. comm. 2008).

Cambaroides Dauricus

Cambaroides Dauricus

Cambaroides Dauricus

Kingdom:     Animalia
Phylum:     Arthropoda
Subphylum:     Crustacea
Class:     Malacostraca
Order:     Decapoda
Family:     Cambaridae
Genus:     Cambaroides
Species:     Cambaroides Dauricus

Local Name :

Habitat : China; Korea, Democratic People's Republic of; Korea, Republic of; Russian Federation

Water Temperature :

Cambaroides dauricus has been assessed as Data Deficient. While this species appears to be relatively widespread, there is no information available on the status of the population and how it is being affected by a range of potential threats, specifically crayfish plague and exploitation. Further research on the population status, threats and distribution is needed before a more accurate assessment of conservation status can be made. 

Koba (1942) described this species as inhabiting mountain creeks though it is also known to occur in still water, such as the freshwaters of Amurskii Liman around Pronge (Birstein and Winogradow 1934, Y. Machino pers. comm. 2009). An ovigerous female of this species was collected during spring months (T. Kawai pers. comm. 2008).

Cambaroides Japonicus

Cambaroides Japonicus

Cambaroides Japonicus

Cambaroides Japonicus
Zarigani

Kingdom:     Animalia
Phylum:     Arthropoda
Subphylum:     Crustacea
Class:     Malacostraca
Order:     Decapoda
Family:     Cambaridae
Genus:     Cambaroides
Species:     Cambaroides Japonicus

Local Name : Zarigani / Japanese Crayfish

Habitat : Hokkaidō and Northern Tōhoku, Japan, Asia

Water Temperature : 7 - 16 degree Celcius

Water Spec : BOD is under 1 ppm, DO is over 7.9 ppm, 

pH : 6.4-6.7

Size in Natural : 6 Cm

Age : The longevity of males is estimated to be 11 yr, and females 10 yr. Both sexes become sexually mature 5 or 6 yrs after hatching

Zarigani (Cambaroides Japonicus) is a species of crayfish endemic to Japan.

It is small in size (6 cm) and grayish in color. Its front claws are much weaker than those of other crayfish. Zarigani need low temperature and high water purity, so they live in upper streams of rivers or lakes in highland regions. The distribution of zarigani comprises Hokkaidō and northern Tōhoku (the northern area of Honshū).

The Environmental Agency (now Ministry of Environment) of Japan added it as a vulnerable species (IUCN category) to the Red Data List in 2000. It is thought that the causes of its decrease are corruption of water quality and the spread of the American crayfish Pacifastacus leniusculus, which was imported in the 20th century and has steadily proliferated in northern Japan. Some suspect that this American crayfish carries some disease, such as the crayfish plague known in Europe, that eliminates zarigani.

Geocharax Gracilis

Geocharax Gracilis

Geocharax Gracilis
The Swamp Yabby

Kingdom:     Animalia
Phylum:     Arthropoda
Subphylum:     Crustacea
Class:     Malacostraca
Order:     Decapoda
Family:     Parastacidae
Genus:     Geocharax
Species:     Geocharax Gracilis

Local Name : The Swamp Yabby / Yabby

Habitat : Victoria, Australia

Water Temperature :

Size in Natural : 2 Cm / 20 miligrams

Colour : Black,  Black/Blue, Brown  

Geocharax Gracilis Map

Astacopsis Tricornis

Astacopsis Tricornis

Astacopsis Tricornis

Kingdom:     Animalia
Phylum:     Arthropoda
Subphylum:     Crustacea
Class:     Malacostraca
Order:     Decapoda
Family:     Parastacidae
Genus:     Astacopsis
Species:     Astacopsis Tricornis

Local Name : The Tasmanian Freshwater Crayfish

Habitat : Huon River, Eastern Tasmania, Australia

Water Temperature : 0 - 24 derajat celcius

Size in Natural : 14 Cm / 1 Kilograms


This species is endemic to Tasmania, Australia. It is found in the western half of Tasmania, from the Huon River in the South through the western edge of the Central Plateau to the Gog Range in the North and is relatively widespread (Richardson et al. 2006, Hamr 1990). This species has an estimated extent of occurrence of 28,229 km².

This species is found in rivers, streams and lakes. It constructs burrows in rivers and streams. In addition, it constructs extensive burrow networks in the soft bottoms of lakes (Horwitz and Richardson, 1986, Hamr 1990).

Secondary sexual characters are more numerous in females and perform important functions in spawning and incubation of eggs (Hamr 1990). Females show sexual dimorphism by the presence of cement (or glair) glands in their abdominal segments and pleopods, heavier abdominal setation, elongation and decalcification of uropods, presence of long filamentous oosetae (for egg attachment) on pleopods, broader and deeper abdominal segments as well as greater total length of the abdomen (Hamr 1990). The secondary sexual characters observed in males are greater total weight and larger chelae. Secondary sexual characters are reliable indicators of sexual maturity in females of Astacopsis. The complete acquisition of the full set of these characters accurately mirrors the onset of sexual maturity. Females in the process of maturing can be identified by partial acquisition of some or all of these characters (Hamr 1990). Females mature between 62 and 101 mm carapace length while in males spermatophore production occurs in individuals with a carapace length greater than 37 mm (Hamr 1990).

The male gonopores (or external copulatory structures) consist of a raised genital papillae on the ventral surfaces of the coxae of the fifth pereiopods while the the female gonopores are a pair of oval openings on the ventral surfaces of the coxae of the third pereiopods (Hamr 1990). Female gonopores undergo significant changes at the onset of sexual maturity. These changes consist of increased setation around the gonopore as well as the decalcification of the gonopore cover (Hamr 1990). The setal cover is lost and regained through a moult during the two year reproductive cycle of mature females. The position in the body cavity of male and female gonads of Astacopsis is similar to that observed in other Astacidea. The ovaries consist of a pair of sac-like lobes connected by a single commissure while the testes consist of two cylindrical lobes joined anteriorly by a small transverse bridge (Hamr 1990). The largest collected to date was a male from the lower Gordon River with a carapace length of 14 cm and weighing 1 kg (Hamr 1990).

Astacopsis Franklinii

Astacopsis Franklinii

Astacopsis Franklinii

Astacopsis Franklinii

Kingdom:     Animalia
Phylum:     Arthropoda
Subphylum:     Crustacea
Class:     Malacostraca
Order:     Decapoda
Family:     Parastacidae
Genus:     Astacopsis
Species:     Astacopsis Franklinii

Local Name : The Tasmanian Freshwater Crayfish

Habitat : New Town Rivulet, Northern Hobart, Eastern Tasmania, Australia

Water Temperature : 0 - 24 derajat celcius

Size in Natural : 60 Grams

Astacopsis Franklinii are usually dark brown with a paler underside, although juveniles can be pale orange in colour. The rostrum is narrow, V-shaped and terminates in a single blunt spine. Males and females are similar in overall body size. This is the smallest of the Astacopsis species; reaching a maximum weight of only 60 grams.

Astacopsis franklinii has been assessed as Least Concern. This species is widespread and relatively abundant across Tasmania, with an estimated extent of occurrence of 22,379 km2. Though there are known threats to this species, these are not thought to pose a signficant threat to this species at present. This species is smaller than Astacopsis gouldi and quicker to mature so is more resilient to pressures.

Ecology:     This species is found in rivers and streams and is a burrower (Hamr 2008). It is also known, in at least one location on the Freycinet Peninsula, to construct burrows well away from permanent water bodies (Horwitz and Richardson 1986).

Females begin to acquire secondary sexual characters between 36 and 46 mm carapace length (CPL), but most do not mature until 46 mm CPL. Males apparently begin to produce sperm at approximately 30 mm CPL but 100% maturity is not reached until size classes reach a CPL of 38 mm (Hamr 2008). In addition, this species mates and spawns in April-May, eggs are carried over winter, hatch in January, and young stay attached until well into the following autumn (April-May) (Hamr 2008). Astacopsis franklinii from Mt. Wellington matures at a smaller size than A. gouldi and A. tricornis (Hamr 1992a).

General threats to crayfish in Tasmania are likely to affect this species. These include the conversion of native forest to plantation, fragmentation of populations by barriers to movement such as poorly constructed or raised road culverts, habitat disturbance (removal of riparian vegetation, bank erosion, de-snagging, channelization) and illegal fishing (Australian Natural Resources Atlas 2007). In addition, climate change may present a threat to this species in the future through warming the cool, high altitude habitat required for this species (Hamr 2008). At the present time these ae not considered significant threats to the population.

Astacopsis Gouldi

Astacopsis Gouldi

Astacopsis Gouldi / The Tasmanian Giant

Astacopsis Gouldi
A. Gouldi
The Tasmanian Giant Freshwater Crayfish
Giant Freshwater Crayfish
The Tasmanian Giant Freshwater Lobster
Giant Freshwater Lobster

Kingdom:     Animalia
Phylum:     Arthropoda
Subphylum:     Crustacea
Class:     Malacostraca
Order:     Decapoda
Family:     Parastacidae
Genus:     Astacopsis
Species:     Astacopsis Gouldi

Local Name : The Tasmanian Giant Freshwater Crayfish /  The Tasmanian Giant Freshwater  Lobster

Habitat : The Arthur River in Tasmania's north-west across the north of the state to include all rivers flowing into the Bass Strait, Tasmanian, Big River Tasmania, Australia

Water Temperature : 0 - 24 derajat celcius

Size in Natural : Up to 5 Kilogram (11 lb) in weight and over 80 centimetres (31 in) long

Age : surviving for up to 40 years

The Tasmanian giant freshwater crayfish (Astacopsis gouldi) is the largest freshwater invertebrate in the world. The species is only found in Tasmania (an Australian island), and is listed as a vulnerable species due to habitat loss and over fishing. It is also severely threatened by siltation and de-snagging of streams as decaying wood forms the favourite part of its diet. It is not known if the animals are nourished by the wood, the bacteria, algae or invertebrates living in the rotting logs. They also eat leaves, fish and other meat, including other freshwater invertebrates.

Individuals of over 5 kilograms (11 lb) in weight and over 80 centimetres (31 in) long have been known in the past, but now, even individuals over 2 kilograms (4.4 lb) are rare.The species is only found in Tasmanian rivers flowing north into the Bass Strait (with the exception of the Tamar) below 400 metres (1,300 ft) above sea level, and is listed as an endangered species on the IUCN Red List. The specific epithet gouldi commemorates the Australian naturalist John Gould.

Astacopsis Gouldi is very long-lived, surviving for up to 40 years. Their main predators are humans, platypus, river blackfish and rakali.

Astacopsis Gouldi is territorial. Males maintain a harem of several females. They reproduce slowly, with the result that unregulated recreational fishing of this species has had a great impact on its abundance, and also explains why the largest individuals now found are smaller than previously. This species was listed as "vulnerable" under Australian law in 1995, and it is now illegal to catch A. gouldi without a permit, carrying a maximum fine of A$10,000.

Astacopsis Gouldi Map

Procambarus Fallax

Procambarus Fallax

Procambarus Fallax
Deceitful Crayfish

Size : under 12 cm (4.72 inch)
Temperature : 15 °C (59 °F) - 25 °C (77 °F)
pH tolerance : 6 - 8
Water hardness tolerance : 10 - 20 °dKH
Life span : 3 years
Behavior : aggressive
Care level : easy
Feeding : omnivore 

Procambarus Fallax has been assessed as Least Concern. This species has a wide distribution throughout the Florida peninsular and into Georgia. It is a very variable species in its habitat requirements and is considered to be one of the most common crayfish species in the Florida peninsular. Further research is required to determine the abundance of this species, and whether it is being impacted upon by any major threat processes.

Range Description Procambarus Fallax :     This species is found in the tributaries of the Satilla River, Georgia, and southward through peninsular Florida (Hobbs 1942). This species has a distribution of approximately 87000 km2.

Countries:      United States (Florida, Georgia)

Procambarus Fallax in Tank

Procambarus Fallax with shell

Procambarus Alleni

Procambarus Alleni

Procambarus Alleni in Tank

Species name: Procambarus Alleni

Common Names: Electric Blue Crayfish/Crawfish/Crawdads, Blue Crayfish, Florida Crayfish/Crawfish/Crawdadsm, A small blue Crayfish

Kingdom:     Animalia
Phylum:     Arthropoda
Subphylum:     Crustacea
Class:     Malacostraca
Order:     Decapoda
Family:     Cambaridae
Genus:     Procambarus
Subgenus:     Leconticambarus
Species:     Procambarus Alleni

Habitat : Florida, United State

Difficulty : Moderate

Min. Tank Size : 75.7 Litres (20 US G.)

Size 7.6-17.8cm (3-7 ")

pH : 7 - 7.5

Temperature : 18.3-23.9°C (65 -75 °F)

Water Hardness : 6-10 °d

Stocking Ratio : 1:1 M:F

Diet : Omnivore

Life Span : 6-5 years

Procambarus Alleni is a species of freshwater crayfish endemic to Florida. Its natural range is the area east of St. Johns River and all of Florida from Levy County and Marion County southwards, as well as on some of the Florida Keys. It is widely sold in the aquarium trade under a variety of names, including the blue crayfish or electric blue crayfish. It is included on the IUCN Red List as a species of Least Concern.
Coloration: Generally entire body is blue. Some will show red sides or speckling throughout the underbellies. Back plates are often speckled blue with lighter and darker patches. Aquarium trade breeds are usually all brilliant blue. Wild caught are blue, brown, and red.

Environment: Freshwater Procambarus Alleni
Origin Habitat: Florida Everglades, throughout the peninsula areas of Marion and Levy counties and possibly through the keys.

Temperament Procambarus Alleni : Moderately aggressive
Water parameters: pH of 6.5-8.5, soft to hard water, and temperature of 65-85 F. This is a very hardy species and quickly adjusts to almost all changes. Won’t tolerate ammonia and nitrites as much as common fish however.

Aquarium setup for Procambarus Alleni : At least 30 gallons for a single crayfish. Provide plenty of hiding places as they do commonly hide in darker spaces during the day. Keep with descent sized fish that can quickly evade the crayfish. Keep the cover tight on the tank and provide no holes as this species will clamp onto cords and hoses and climb out of the tank. Larger aggressive cichlids should not be kept with the crayfish as they may attack and torment it.
Electric Blue Crawfish

Feeding Procambarus Alleni : The crayfish will filter feed off the bottom as well as accept wafers and crab bites. The fish will snack on dead or dying fish but is generally too slow to catch fish that are still living. When molting the species will eat it own molt to regain vital nutrients that were lost.

Breeding Procambarus Alleni : They breed throughout the year. The female will carry the eggs under her tail section or swimmerets. Once hatched try to provide adequate rooming and caves, rocks for each to hide. If adequate space is not available cannibalism will occur, as crayfish will eat each other. Usually breeding period until hatched is around 1 month.

Electric Blue crayfish were first brought into the hobby in florida. Every year the crayfish hobby grows stronger, seems everyone would like to have this amazing creature. Blue crayfish are not only for looks, crayfish are great scavengers that eat debris off aquarium floors and ornaments. Alleni crayfish can generally be kept with fast non aggressive fish such as neons, do not keep them with cichlids or any other aggressive fish. All crayfish moly, they need to do this to grow, when they molt, there shell is very soft, they will need to hide a few weeks. Its difficult to say when they will molt, generally every couple of months. Crayfish growth depends on a few factors, the water temperature ( warm = fast ) , the amount fed, and the aquarium size

Procambarus Citlaltepetl

No Pic

Procambarus Citlaltepetl

This species is known only from its type locality at Rincón de la Doncella Park Lake, Ciudad Mendoza, Municipio de Camerino Z. Mendoza, in the state of Veracruz, Mexico (Rojas et al. 1999). It is found at an altitude of 1,400 m (Rojas et al. 1999). This species has an estimated extent of occurrence of 10 km².

ProcambarusCatemacoensis

Procambarus Catemacoensis

Procambarus Catemacoensis

Kingdom:     Animalia
Phylum:     Arthropoda
Subphylum:     Crustacea
Class:     Malacostraca
Order:     Decapoda
Family:     Cambaridae
Genus:     Procambarus
Species:     Procambarus Catemacoensis

Procambarus Catemacoensis has been assessed as Critically Endangered B1ab(iii) + B2ab(iii). This species is restricted to the eastern shore of Lake Catemaco, Mexico, which is approximately 10 km² and can be considered one location. Furthermore, the lake habitat is under threat from deforestation in the catchment resulting in sedimentation. This ongoing decline in habitat quality is assumed to be impacting the population of this species, however if further survey work shows that the population is stable then this species would qualify for a listing under Near Threatened.

Procambarus Atkinsoni

No Pic

Procambarus Atkinsoni 

This species is known only from Isla de la Juventad, Cuba (Hobbs 1989). 

ProcambarusAcanthophorus

Procambarus Acanthophorus Hairy Claw

Procambarus Acanthophorus
Male and Female

Procambarus Acanthophorus


Common Name/s: Spanish – Reculilla



Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Decapoda
Superfamily: Astacoidea
Family: Cambaridae
Genus: Procambarus
Species:  Procambarus Acanthophorus  / Procambarus (Austrocambarus) Acanthophorus


Procambarus (Austrocambarus) Acanthophorus

Habitat and Ecology Procambarus Acanthophorus : Mexico
Procambarus Acanthophorus is known from creeks, lagoons, and marshy habitats, and has a rapid population doubling time (M. López-Mejía., F. Alvarez. and C. Pedraza-Lara pers. comm. 2009).

Max body size: 10cm, this species has hair on its pincers


PH : 6.5 – 8.0

Temperature : 15 – 28°C (59 – 82°F)

Hardness : 5 – 30 (gH); 3 – 20 (kH)


Keeping Procambarus Acanthophorus : You can keep 1 pair in an aquarium of 60cmx30cm.
Bigger tanks allow for a greater number of individuals.
A wide range of pH and GH is possible as long as one avoids the extremes.
Procambarus Acanthophorus is not as tolerant to bad water quality as the more widely distributed Procambarus clarkii, Procambarus Allenii and Procambarus Acutus.

Behaviour : Like Procambarus allenii

How to tell apart males from females : As usual (longer pincers, gonopods in males, broader tail in females)

Breeding : As usual.

Spread of Procambarus Acanthophorus : rare

Cherax Communis

Cherax Communis

Cherax Communis
Cherax Wamena
Cherax Baliem
Huna Baliem

Local Name : Huna Baliem  / Cherax Papua / Cherax Sp / Huna Wamena / Huna Papua / Udang Balem / Udang Wamena / Lobster Baliem / Lobster Wamena / Udang Papua

Natural habitat :  Balim River, Wamena, Papua, Irian Jaya, Indonesia

Water temperature range : 16-18 oC

Scavenger species

Naturally up to 200 gram in size

Male Bigger than Female

Body Color : Light Brown

Cherax Communis

Cherax Albertisii

Cherax Albertisii

Cherax Albertisi

Cherax Albertisii
Cherax Albertisi

Kingdom:     Animalia
Phylum:     Arthropoda
Subphylum:     Crustacea
Class:     Malacostraca
Order:     Decapoda
Family:     Parastacidae
Genus:     Cherax
Species:     Cherax Albertisii

Local Name : Huna Biru / Huna Blue / Udang Selingkuh / Lobster Blue Tiger / Papua Blue / Papua Blue Green / Cherax Papua / Cherax Sp

Natural Habitat : Merauke River, Papua, Irian Jaya, Indonesia

Water temperature range : 22-28 oC

Scavenger species

Naturally up to 200 gram in size

Male Bigger than Female

Body Color : Blue Green

Cherax Monticola

Cherax Monticola

Cherax Monticola
Cherax Baliem
Baliem Crayfish
Wamena Crayfish

Local Name : Huna Baliem  / Papua Black / Cherax Papua / Cherax Sp / Brown Coral Crayfish / Lobster Baliem / Udang Baliem / Cherax Baliem / Baliem Crayfish / Huna Wamena / Lobster Wamena / Udang Wamena

Natural habitat : Ibele River and Balim River, Papua, Irian Jaya, Indonesia

800-1200 Sea Water Level

Water temperature range : 16-18 oC

Scavenger species

Naturally up to 300 gram in size

Male Bigger than Female

Body Color : Black & Brown

Good Taste As Food

Cherax Wasselli

Cherax Wasselli

Cherax Wasselli

Habitat : Northern Tip Queensland, Australia

Distribution Cherax Wasselli

Cherax Setosus

Cherax Setosus

Cherax Setosus 
The NewCastle Yabby

Kingdom:     Animalia
Phylum:     Arthropoda
Subphylum:     Crustacea
Class:     Malacostraca
Order:     Decapoda
Family:     Parastacidae
Genus:     Cherax
Species:     Cherax Setosus

Local Name : crawbob, freshwater crayfish, lobby, yabbie, the Green Yabby,  The New Castle Yabby, Brown Yabby

Habitat : New Castle, Australia

Water Temperature : 10 - 20 derajat celcius, Cool Water

pH : 5 - 8

Size in Natural : Up to 15 grams, up to 15 cm
 
 Omnivora

Cherax Rynchotus

Cherax Rynchotus

Cherax Rynchotus

Cherax Rotundus

Cherax Rotundus

Cherax Rotundus

Cherax Robustus

Cherax Robustus

Cherax Robustus

Cherax Quinquecarinatus

Cherax Quinquecarinatus Black

Cherax Quinquecarinatus

Cherax Quinquecarinatus
Gilgie, Jilgi, Gilgies

 Kingdom:     Animalia
Phylum:     Arthropoda
Subphylum:     Crustacea
Class:     Malacostraca
Order:     Decapoda
Superfamily:     Parastacoidea
Family:     Parastacidae
Genus:     Cherax
Species:     Cherax Quinquecarinatus

Other Name : Gilgie, Jilgi, Gilgies

Habitat : coastal south of Western Australia

Water Temperature : 17 - 25 derajat celcius


pH : 6 - 8

Size in Natural : up to 13 Centimeter


Cherax Quinquecarinatus is a small freshwater crayfish endemic to the south-west corner of Australia. It is one of two species known as gilgie, or jilgi, which is a seasonal food source for people of the region. Gilgies are found throughout a biogeographically isolated region of the coastal south of Western Australia and significant in the ecology of aquatic systems of that bioregion.

Reaching a maximum of 130 mm, Cherax Quinquecarinatus is one of the smallest in the genus Cherax. They vary in colour from light to black-brown. Their heads have 5 keels, two pairs of spines at rostrum and none on their telson. Their chelipeds are rounded and narrow and are often speckled. While restricted to southwestern Western Australia, it has the widest distribution in the biogeographic region. It is found in all habitats containing freshwater crayfish, congenors such as Cherax tenuimanus (marron), or the genus Engaewa.

The species has been traditionally hunted by tribes in the region. This involved an elaborate seasonal rituals relating to taboos of eating. It has been claimed that this was linked to an early form of environmentalism and sustainability. Family groups (moieties) would establish temporary claim to territory and lay fishtraps and use scoops to gather marron and jilgi. Some tribes travelled great distances to join the hunt and each indigenous group carried unique and particular oral traditions regarding this practice. Indigenous artwork has been shown to actually convey important information about different species and selective harvesting. The Nyungah people are also known to have caught and eaten the animal.

In Western Australia, recreational fishing (marroning) will include gilgies in the catch, but it is not considered to be a commercial species

The gilgie lives in permanent and temporary water courses in the South of Western Australia. It can survive periods of drought through a process called aestivation - burrowing down and entering a state of dormancy.

They are widely found within the region, having a greater range of environments. These can include permanent lakes and areas receiving water for 5–7 months of the year. It lives in complex and narrow environments, such as silty river beds between fallen trees, feeding on decaying organic matter and receiving protection from predation. The animal undergoes many moults and these decrease with age. Sexual maturity can occur from two years and at half their fully mature size. Spawning occurs from late winter to early summer.

Their conservation is that of all the freshwater crayfish species of the South West, recognised as having a high degree of importance due to the long term isolation of the bioregion. However, protection of the two endemic genera is usually focused on the commercial species. Few studies have been made to the specific threat. The region has undergone extensive logging and intensive cultivation which are known to have impacted upon the water tables and courses. The species is sensitive to pollutants such as petroleum products and organochlorines and is known to accumulate heavy metals.

The species is assumed to have an integral role, through the consumption of decaying organic matter, in the ecology of its region and contributing to the biodiversity. High sensitivity to toxins and pollutants has been seen as an indicator of the presence of these within a habitat.

Some populations have been exposed to porcelain disease (Thelohania) and the introduction of crayfish diseases threaten entire populations.

The gilgie is used in permaculture gardens in Western Australia. They enable ponds and pools to be self-sustaining

Cherax Quadricarinatus

Red Claw Face

Cherax Quadricarinatus
Red Claw
Walkamin Red Claw

Kingdom:     Animalia
Phylum:     Arthropoda
Subphylum:     Crustacea
Class:     Malacostraca
Order:     Decapoda
Family:     Parastacidae
Genus:     Cherax
Species:     Cherax Quadricarinatus

Other Name : Australian red claw crayfish, Queensland red claw, redclaw, tropical blue crayfish, yabby and freshwater blueclaw crayfish), Red Claw Crayfish, Blue Lobster / Lobster Capit Merah / Red Claw Lobster / Huna Capit Merah

Habitat : Queensland, Australia and Papua New Guine

Water Temperature : 25 - 30 derajat celcius

pH : 5 - 8

Size in Natural : up to 600 grams (21 oz)

Life Span : 4 - 7 years

This species is native to freshwater creeks and water bodies in tropical Queensland, the Northern Territory and south-eastern Papua New Guinea. It has been widely translocated around the world, and is considered an invasive species. This species has established feral populations in South Africa, Mexico, Jamaica and Puerto Rico (Ahyong and Yeo 2007). This species has a distribution exceeding  3.5 million km². 

Cherax Quadricarinatus is farmed commercially in Queensland and the Northern Territory, and is harvested at between 35–130 grams (1.2–4.6 oz).Cherax Quadricarinatus is a sought-after product with a delicate crustacean flavour. They are both non-aggressive in nature and highly fertile, and can therefore be bred in large numbers in captivity. Time to sexual maturity, and therefore harvest size, is somewhere between six to twelve months in optimal farmed conditions

Cherax Quadricarinatus Now Farmer commerciallt in Indonesia

Cherax Quinquecarinatus

Cherax Punctatus

Cherax Punctatus

Cherax Punctatus

CambarellusPatzcuarensis

Cambarellus Patzcuarensis

Mini Mexican Crayfish
Mini Mexican Crawfish
Mexican Orange Dwarf
Mexican Orange Crayfish/Crawfish
Mexican Dwarf
Mexican Dwarf Orange Crayfish/Crawfish
Dwarf Mexican Orange Crayfish/Crawfish
Patzcuarensis Cambarellus
Mexican Orange Dwarf Crayfish
CPO or Cambarellus Patzcuarensis Orange 

Description
It has a body measuring 4–5 centimetres (1.6–2.0 in), including claws. Most specimens found in the wild are brown, sometimes with a gray or blue tint. Cambarellus patzcuarensis var. "Orange" (Mexican dwarf crayfish, sometimes Mexican dwarf orange crayfish) is an orange-coloured mutation often held in aquariums, but this form is rarely found in the wild. Yet another colorful addition to the aquarium tank. The orange striped and tanned color is mesmerizing as well as their smallness. Mexican Orange Dwarf crayfish are plant friendly yet a little aggressive despite their size. When fully mature they average 2.5 – 4.0 cm. They are omnivores like any other type of crayfish as their diet consists of dead leaves, algae, phytoplankton, fish flakes and any dead animal matter (aquarium types ONLY). When housing these crayfish in a tank a lot of hiding space should be created as they tend to prey on each other during the molting period.

Water Parameters: Care must be taken when housing these species as they are extremely fragile and delicate. Regular water changes should always be conducted to avoid accumulation of nitrates in the water. Cool to warm temperatures ranging between 18 - 26° C will suffice. Soft to hard water with a pH of 7.0 – 8.0 will be beneficial to these little crayfish.

Sexing: The females are slightly larger than the males.

Breeding : Good healthy numbers will likely result in them breeding. Their young ones are born alive and looking like their parents. When a female is in berry she should be separated from the rest of the pack. The young ones are also prone to cannibalistic tendencies during the molting phase.

Compatibility : They do well in great numbers but they should not be housed together with any larger crayfish as they will not last very long. Despite their smallness they will not shy away from any type of confrontation even it means a fight to the death. They can be tanked together with any shrimp and fish except the big aggressive fish types.

Cambarellus Patzcuarensis Orange

CPO

Cambarellus Patzcuarensis

Cambarellus Patzcuarensis

Cambarellus Patzcuarensis

Cambarellus Patzcuarensis

Cambarellus Patzcuarensis

Cherax Sp Orange

Cherax Sp Orange

Cherax Sp Orange

Cherax Sp Orange

Cherax Sp Orange
The Orange Papua Crayfish
Cherax Holthuisi
Cherax Holthuisi Orange
Orange Coral

Local Name in Papua : Huna / Huna Orange
Indonesian Name : Orange Papua


Kingdom:     Animalia
Phylum:     Arthropoda
Subphylum:     Crustacea
Class:     Malacostraca
Order:     Decapoda
Family:     Parastacidae
Genus:     Cherax
Subgenus:     Cherax
Species:     Cherax Holthuisi

Habitat : Aitinjo Lake, Ayam Maro River, Sorong, Papua, Indonesia
Water Temperature : 22 - 28 derajat celcius

Size in Natural : Up to 15 gram 81–93 mm (3.2–3.7 in)

Male Large then Female

Orange / Soft Orange in Body Color

Cherax Holthuisi/ Cherax Sp Orange  is a species of crayfish from the Bird's Head Peninsula in New Guinea. It grows to a total length of 81–93 mm (3.2–3.7 in) and is typically pink, orange or yellow in wild specimens. It was described in 2006 after animals circulating in the aquarium trade could not be assigned to any known species.

The total length of Cherax Holthuisi is 81–93 millimetres (3.2–3.7 in). In the wild, it is pink, orange or pale yellow, although blue varieties are also sold in the aquarium trade. It is chiefly differentiated from the other species in the genus Cherax by the form of the rostrum, the shape of the claws and the small size of its eyes. In  Cherax Holthuisi / Cherax Sp Orange , the rostrum has two indentations on each side, and several indistinct lobes; in most other species, there are 3–8 teeth on the rostrum

Distribution and habitat
In the wild, Cherax Holthuisi / Cherax Sp Orange has only been recorded from Aitinjo Lake (1°25′28″S 132°22′22″E) on the Bird's Head Peninsula at the western end of New Guinea, in the Indonesian province of West Papua. The lake is 4 kilometres (2.5 mi) long and up to 350 metres (1,150 ft) wide, and is surrounded by steep mountains.  Cherax Holthuisi / Cherax Sp Orange  has been listed as Data Deficient on the IUCN Red List, pending better knowledge of its biology.

Specimens of  Cherax Holthuisi / Cherax Sp Orange  were collected in 1952, when M. Boeseman bought nine individuals from locals on the shores of Lake Aitinjo. They were deposited in the Rijksmuseum van Natuurlijke Historie (now part of Naturalis) as lots RMNH D 51503 and RMNH D 51504. The species remained undescribed, however, until Christian Lukhaup and Reinhard Pekny attempted to identify some exotic crayfish then on the market in Germany. Their specimens did not accord with any of the nine species described from New Guinea by Lipke Holthuis, but did match Boeseman's undescribed specimens. Lukhaup and Pekny therefore described the new species in a 2006 publication in Zoologische Mededelingen and called it Cherax holthuisi in honour of Lipke Holthuis. One juvenile was later discovered among specimens described as the new species Cherax boesemani in 2008.