Just an update on what’s occurred over the year of 2014. It’s been an incredibly busy year with astounding results from a large number of projects, many reached fruition in 2014 and many are nearing completion with much new information discovered in 2014. The Australian Crayfish Project continues to increase the knowledge base on our freshwater crayfish and works towards their conservation.
Euastacus binzayedi Project Ongoing.
There is a team of us working on this project made up of Paul Van der Werf, Chris Van der Wyk, Craig N Burnes and myself. We have had fantastic support from the Queensland Parks and Wildlife Service who have provided accommodation, information, support and encouragement for our survey efforts.
Unfortunately, the weather has been less than cooperative and on one wet and stormy day I got everyone lost so wasted half a day getting us back on track – “me bad”. Other than that it’s just been a matter of hard work, sweet and effort to survey hundreds of square kilometres of rainforest all on foot. It’s been a great project in a fantastic area with astounding results to date. The final surveys are scheduled for early 2015 and will include a hike up Christmas Creek to the Stinson Plane wreck site. Unfortunately, the planed expedition this year, late 2014 was cancelled when one of our volunteers broke his toe the week before.
The paper titled: The distribution, ecology and conservation status of Embezee’s Crayfish Euastacus binzayedi Coughran et al., 2013 (Crustacea: Decapoda: Parastacidae), a dwarf freshwater crayfish from the Gondwana Rainforests, south-eastern Queensland.Robert B. McCormack, Paul Van der Werf, Chris Van der Wyk and Craig N Burnes
Abstract: Embezee’s crayfish Euastacus binzayedi is a small freshwater crayfish recently described (2013) from only one location in the upper reaches of the, Logan River, Queensland. Recently biological surveys by volunteers as part of the broader Australian Crayfish Project (ACP) and with the support of Queensland Parks and Wildlife Service have gathered new information on the species ecology, distribution and conservation status. We have conducted a number of surveys over 2014 and hope to complete our surveys of the whole of Lamington National Park and surrounding area by early 2015 and present a paper on our research by mid 2015.
Due for publication in 2015, stay tuned.
Upper Shoalhaven River surveys continue.
Biodiversity and water quality survey & report of the upper Shoalhaven catchment upstream of Warri Bridge is in progress ( see “Click Here” for futher information on this AABio project). As a result of this AABio project (for more information on this project “Click Here”) we have made some incredible discoveries.
This project sponsored by the Upper Shoalhaven Landcare Council Bio Program and Australian Aquatic Biological P/L has discovered an incredible amount of new information on the Parastacidae species present in the Shoalhaven catchment. Originally, expected to map the distribution of translocated Cherax destructor, E. yanga and E. claytoni in the upper Shoalhaven. This went out the window when we discovered what seems to be Euastacus crassus in the upper Shoalhaven catchment and another new undescribed species. These two new discoveries have led to the generation of 2 new ACP projects to research these species and our research has overflowed out of the Shoalhaven into the adjoining Murrumbidgee, Tuross and Deua catchments.
Research and documentation of these 2 new species in the Shoalhaven catchment will culminate in scientific papers. Stay tuned for further incredible results in 2015.
Euastacus clarkae project completed
Our conservation project on Euastacus clarkae is completed and the paper has been submitted to the Journal of Crustacean Biology (http://www.brill.com/journal-crustacean-biology ). It has been accepted and reviewed and we expect publication in early 2015. The Journal of Crustacean Biology is the official journal of The Crustacean Society for the publication of research on any aspect of the biology of Crustacea & other marine arthropods. As a member of the Crustacean Society http://www.thecrustaceansociety.org/ I wholeheartedly recommend that you join us and share in the mission of the Crustacean Society. Our mission is to advance the study of all aspects of the biology of the Crustacea by promoting the exchange and dissemination of information throughout the world.
This ACP E. clarkae project was supported with a Mohamed bin Zayed Species Conservation Fund (MBZSCF) grant (Project 12054688) and I am extremely grateful for their generous support. The MBZSCF is a significant philanthropic endowment established to provide targeted grants to individual species conservation initiatives, recognize leaders in the field of species conservation and elevate the importance of species in the broader conservation debate http://www.speciesconservation.org/ .
The paper titled;
CONSERVATION OF IMPERILED CRAYFISH – EUASTACUS CLARKAE MORGAN 1997 (DECAPODA: PARASTACIDAE), A HIGHLAND CRAYFISH FROM THE GONDWANA RAINFORESTS OF AUSTRALIA’S WORLD HERITAGE AREA.Abstract: The imperiled Clark’s Crayfish Euastacus clarkae Morgan (1997) was described from a handful of juvenile specimens collected from one location in 1981. The Australian Crayfish Project recently completed an intensive field survey project to better define its distribution, habitat, biology and conservation status. Euastacus clarkae is restricted to headwater reaches of highland streams feeding the Hastings and Forbes rivers, at elevations ranging from 670-1150 m. The entire Hastings River catchment (3,846 km2) was surveyed and established the Extent of Occurrence for E. clarkae at 200 km2. The distribution was almost entirely located within Werrikimbe National Park where the species was locally abundant. We recommended conservation down listing from Critically Endangered to Endangered and present information to support future conservation efforts and allow specific management plans to be drafted for this rare, highland species. To assist with identification we provide a key to this and other Euastacus found in the Hastings and adjoining drainages.
Soon to be published in the Journal of Crustacean Biology (http://www.brill.com/journal-crustacean-biology ).
This project had led to a number of off shoot scientific projects. We are preparing a paper on all the species of the Hastings Drainage, many never previously recorded. Additionally we are preparing a paper on E. maccai (see next item).
Additionally, recorded in the E. clarkae paper is information on E. simplex. Interestingly, Morgan 1997 documents Euastacus simplex as occurring in the Hastings drainage. Our research indicated this is incorrect and the paper validates our conclusions. The removal of the Hastings drainage from the distribution of E. simplex greatly reduces its distribution area but greatly increases the knowledge base of the species.
Euastacus maccai extension in Hastings Drainage
As an offshoot of the E. clarkae project we discovered Euastacus maccai in the Hastings drainage for the first time. Originally suspected as occurring within the Hastings in 2009, despite increasing efforts it was not till 2014 that a specimen was vouchered and its existence confirmed. Only 12 specimens of this species have ever been recorded prior to 2014 so a very rare and cryptic species.
The discovery of this species has led to a scientific manuscript being generated titled:
Status of the Terrestrial crayfish Euastacus maccai with range extension into Hastings River drainage, New South Wales, Australia.Abstract The terrestrial crayfish Euastacus maccai (McCormack & Coughran 2008) is documented for the first time from the upper Hastings River catchment. This new distribution represents a significant range extension for this rare and elusive freshwater crayfish species. To assist conservation and management of the species we present biological and ecological information together with a key to this and other species of Parastacidae found within the Hastings and adjoining catchments.
We will continue with research on this species into 2015. In late 2014 volunteers on the Australian Crayfish Project documented 3 new locations for the species an managed to capture two new specimens from the Hastings drainage. We have been trialling mist net snares as a capture method for this species. These type snares have proved very effective on other Euastacus species like E. reductus. However our trial in December 2014 for E. maccai proved interesting but unsuccessful.
We deployed 8 snares, 6 in untouched burrows and 2 in excavated burrows. Of the 6 set in untouched burrows 4 had been filled with excavated material renderinging them useless, 2 had captured animals but they had torn free. Of the other 2 one was set in a burrow that had been excavated (approx. 700 mm deep) but no animal captured. It had captured the animal but again the mist net was not strong enough and it had torn away. The other snare was set in a burrow that had been partly excavated (850 mm) and a specimen collected. Although the burrow extended a further metre or so this snare remained untouched. This was a male we capture from that burrow so seemingly it was the only one using the burrow.
This project will continue into 2015. We have never seen a berried female of this species and although we expect the juveniles to live in the same burrow as the mother we don’t have one scrap of evidence to support this hypothesis. The project will continue with digging teams to excavate burrows and we will be doing extensive surveillance surveys in 2015 where we film the burrow entrances and forest floor at night to ascertain just what this species gets up to. Stay tuned for some intriguing results.
New Gramastacus species described by ACP in 2014
A paper describing a new species of Gramastacus was published in Zookeys ( http://www.pensoft.net/journals/zookeys/ ) in April 2014. This paper is the culmination of 8 years of research in the coastal creeks and swamps of NSW. Though the description has been published, we continue to research this species with a number of projects ongoing.
The paper titled:
The eastern swamp crayfish Gramastacus lacus sp. nov. (Decapoda: Parastacidae) a new species of freshwater crayfish from coastal New South Wales, Australia.”Abstract Gramastacus lacus sp. n., is described from coastal lowlands of the Central and Mid North Coast regions of New South Wales, Australia. Gramastacus lacus has a restricted distribution in ephemeral habitats, being dependent on regular natural flooding and drying cycles, and burrows for survival during temporary dry cycles. Documented are population distributions in lowland habitats (3–48 m, a.s.l.) from Wamberal Lagoon, north along the coastal strip to Wallis Lake. The species is small, reaching a maximum weight of 7 grams and 21.3 mm OCL, and distinguished by a large male genital papilla, large raised post orbital ridges, laterally compressed carapace and elongated chelae.
To download a free access copy go to http://zookeys.pensoft.net/articles.php?id=3693
For an article with more information go to:
Euastacus diversus paper finalised 2014
Euastacus diversus was first described by Riek (1969) on the basis of 12 immature specimens collected from 30 miles north of Orbost in eastern Victoria, Australia, in 1956. Since then confusion has reined surpreme as Morgan in 1986 failed to find any specimens for his revision of Victorian Euastacus and together with taxonomic uncertainties and lack of new specimens all limited conservation and management efforts.
Aquatic surveys by volunteers of the ACP between 2007 and 2011 collected specimens of Euastcus diversus from across its distribution and together with genetic analysis by Jim Fetzner from the Carnegie Museum of Natural History we were able to present a thorough redescription of the endangered freshwater crayfish Euastacus diversus Riek, based on morphologic and genetic analyses of this newly collected material from eastern Victoria, Australia.
RE-DESCRIPTION OF THE ORBOST SPINY CRAYFISH, EUASTACUS DIVERSUS (RIEK 1969), IN EASTERN VICTORIA, AUSTRALIA.
Jason Coughran, Robert B. McCormack and James W. Fetzner Jr
The COMPLETED paper has been presented by the lead author Jason, at the Biennial Symposium of the International Association of Astacology and the Carcinological Society of Japan. A joint International Conference on Crustacea, which was held at Sapporo, Japan on 20-21 September, 2014. The paper has been submitted to “Freshwater Crayfish” for publication and we expect this to happen in 2015.
New Euastacus species for Victoria.
The E. diversus paper is based on specimens captured between 2007 and 2011. From 2011 to 2013 we were collecting specimens of 3 new Euastacus species. Our plan was to publish the description of the first of these new species with the E. diversus paper. The description is written but we needed to check the morphology and genetics across the limits of its distribution so needed more specimens, but unfortunately, this was not possible due to bureaucratic entanglements. Victoria was closed for research in 2014 thanks to the Vic WSIAEC. See article “Victoria Closed for Research”.
If we ever receive approval from the WSIAEC to recreational fish for yabbies and fish the same as 5 million Australians do each year without WSIAEC approval then we will restart the Victorian projects.
Blue Mountains Crayfish Poisoning paper published in 2014
Bifenthrin is a pyrethroid insecticide typically applied by pest controllers to protect against termites. It has a high toxicity to aquatic organisms. In July 2012 bifenthrin contaminated Jamison Creek, Wentworth Falls, NSW and caused a mass mortality event of freshwater crayfish and macroinvertebrates. As part of the Australian Crayfish Project we volunteered to conduct a follow up survey of Jamison Creek and similar creeks in the area to monitor the recovery of freshwater crayfish and fish in the creek after this catastrophic event.
Results of those surveys were included in a scientific paper which has been presented at 7th Australian Stream Management Conference held in July at Townsville, Queensland.
St Lawrence, A., Wright, I.A., McCormack, R.B., Day, C., Smith, G. and Crane, B. (2014). Bifenthrin pesticide contamination: impacts and recovery at Jamison Creek, Wentworth Falls, in Vietz, G; Rutherfurd, I.D, and Hughes, R. (editors), Proceedings of the 7th Australian Stream Management Conference. Townsville, Queensland, Pages 558-567.
In July 2012, over 1000 dead Giant Spiny Crayfish (Euastacus spinifer) were found in a two kilometre reach of Jamison Creek, Wentworth Falls, including within the Greater Blue Mountains World Heritage Area. A multi-agency investigation discovered the crayfish were killed by a termiticide, Bifenthrin, and that the effects extended beyond the crayfish to the entire aquatic macroinvertebrate community. The contaminant entered the creek via a conventional stormwater drainage system of pits and pipes, which provided a direct connection between the property at which the pesticide was over-applied and the creek 300m away. The pest control operators involved were prosecuted.
Our paper is now available on the conference website:
Gosford Gramastacus Project Ongoing
The Gosford City Council Ecological Research Grant Project; “Biology, distribution and abundance of Gramastacus crayfish and invertebrates in the Avoca and Cockrone Lagoon freshwater ephemeral habitats” is ongoing. We have not located any Gramastacus crayfish as yet, but interestingly we are finding large numbers of False spider crabs Amarinus lacustris.
False spider crabs Amarinus lacustris are a widespread and relatively abundant small crab species inhabiting low salinity and freshwaters waters in south eastern and eastern Australia, New Zealand, and Lord Howe and Norfolk Islands. They are a small freshwater crab species only reaching 10 mm in body width, with a distinctive H-shaped groove on their back. They are a slow growing species that can be covered with weeds or algae growing on their shell which makes them harder to see and for predators to find. It’s a small vulnerable species that is cryptic in nature and rarely seen or captured, spending most of their life hiding in thick reeds and roots or under rocks that offer protection and shelter from predators.
Research and surveys for this project will continue in 2015.
“Victoria Closed for Research for 2014”
Unfortunately, we were unable to conduct any research in Victoria during 2014 due to bureaucratic entanglements.
For the last 7 years I have had permits for scientific research in Victoria and have been dealing with Vic DPI and DSE which are both very professional and efficient departments. These two departments have now combined into Victorian Department of Environment and Primary Industries (DEPI) at that time (or now DELWP). My permits expired in April 2014 so in February I contacted DEPI and started the renewal process. All went smoothly and with exceptional professionalism and efficiency my new draft permit was ready, however, there was a hiccup. Under the new regulations to catch crayfish and fish in Victoria I now need Animal Ethics Committee approval. No problems I thought, I’ve been doing the job for 7 years in Victoria without a problem, have approvals from all the other states and I’m just recreational fishing for fish and yabbies, something 5 million Australians do every year without AEC approval, so how hard can it be?
I proceeded to contact the Wildlife and Small Animal Institutions Animal Ethics Committee (WSIAEC). Chatting to them initially they told me of the difficulties others had getting approval and how the most innocent of research projects had been rejected in the past. That should have been my first hint as to how things would go. Instead I laughed with them at the misfortune of others and proceeded to progress my application.
The final application (some 35 pages) was sent early March 2014.
That was promptly reject for a whole bunch of reasons which I felt were all unreasonable. (Don’t get me started on the rejection). However, I said nothing and promptly sent a reply with some additional 14 pages of information.
This is where the whole application took a left turn straight back to the 1920’s. I had great difficulty getting my mind around their response. It seems that they don’t accept responses to additional information they have requested, the applicant needs to reapply in full from scratch incorporating any additional requested information into the new applications.
Now I have applied for hundreds of licences, permits and consents over the last 30 years to local, state and federal governments departments and never come across this gross inefficiency.
So now I have to reapply and send in a new application of 50 pages which the WSIAEC has to go through again from scratch, wasting their time to do the exact same thing they did last time but now try and see that I have added the information they requested. The gross inefficiency and complete waste of resources is unbelievable. It is not only a tremendous waste of my time but why are Victorian taxpayers funding such a grossly inefficient department?
So I send in the 2nd new complete 50 page application and guess what! You guessed it, they have more questions and demands. So again I must reapply in full from scratch.
So I send in the 3rd new 50 page application. It’s the end of December now and still no WSIAEC approval. They charge me $550 for this lack of service and the waste of my time for most of the year. I’m a very dissatisfied customer. Do you know the kicker? On the bottom of their emails they state “Please consider the environment before printing this email”. How hypocritical, whole forests have been consumed by their inefficiency and demand for paperwork.
At a time when all government departments are struggling for funding and all are cutting services and increasing efficiency, to have a department that is so grossly inefficient and wasteful is a travesty, why the Victorian people fund this WSIAEC is inexplicable.
Let me be extremely clear. I have no concerns with Victorian Department of Environment, Land, Water and Planning which is a very professional and efficient department. They are as good as or better than any of their interstate counterparts and I’ve used them as examples of efficiency and ability to other interstate departments in the past. Yet for me to receive their permit I need approval from the “Department of Economic Development, Jobs, Transport & Resources, Wildlife and Small Institutions Animal Ethics Committee” that is the exact opposite and that is what makes this whole horrid episode so unbelievable.
I’m just applying to recreational fish for yabbies and fish and killing them the same as 5 million recreational fishers do in Australia every year. If I can’t get approval, what chance has a researcher that may actual want to do something with an animal and not kill it but keep it in captivity. VICTORIA CLOSED FOR RESEARCH!!!!!!!!!!”that’s an understatement”
Lets hope that in 2015 WSIAEC approval is finally received and the ACP research can continue.
Coffs Harbour Council Project Completed
Aquatic Biodiversity Survey and Baseline Mapping of Freshwater Crayfish and Aquatic Species of the Coffs Harbour LGA. Was completed in 2014 and the 103 page final report issued to council in July 2014. It was an extremely interesting survey in a tremendously scenic area.
The project concentrates on the 64 km section of coastal strip between the sea and approximately 20 km inland generating a total of 1280 square kilometres under investigation. Ephemeral creeks and swamps not normally surveyed were specifically targeted and resulted in some very interesting findings.
We were specifically looking for Tenuibranchiurus crayfish as part of our ongoing project. We were also targeting Cherax cuspidatus as part of that project and just generally mapping not only freshwater crayfish but all fish, molluscs, macro inverts and gastropods, etc.
Interestingly we document The River Swimming Crab Varuna litterata in the area for the first time. See next article.
The River Swimming Crab
Project 100062-1. Aquatic Biodiversity Survey and Baseline Mapping of Freshwater Crayfish and Aquatic Species of the Coffs Harbour LGA. Was completed in 2014 and the 103 page final report issued to council in July 2014.
During this AABio survey we discovered The River Swimming Crab Varuna litterata. A species not known to occur in NSW, this discovery represents a significant range extension. Further surveys were conducted as part of the ACP and a scientific manuscript documenting our findings has been generated. We hope to submit this paper for publication in 2015
New Distribution Records of The River Swimming Crab Varuna litterata from coastal New South Wales, Australia.
Robert Browning McCormack1,3, and Craig Neil Burnes2
1Volunteer Australian Crayfish Project c/- Australian Aquatic Biolodgical P/L, Karuah, NSW Australia. firstname.lastname@example.org
2Volunteer Australian Crayfish Project c/- Albatross Aquaculture, Woollamia, NSW Australia. email@example.com
3Research Associate, Carnegie Museum of Natural History, Section of Invertebrate Zoology, 4400 Forbes Avenue Pittsburgh, PA 15213-4080. www.carnegiemnh.org
The river swimming crab Varuna litterata (Fabricius, 1798) is recorded for the first time from the Coffs Harbour area of New South Wales (NSW) Australia. Specimens were collected from sites 40 km apart in Yuraygir National Park and Boambee, NSW. A tropical species previously only recorded as far south as south east Queensland, their presence so far south represents a major range extension and the likely hood of climate change and a strengthening East Australian Current contributing to this range extension is discussed.
Tenuibranchiurus Project Ongoing
An undescribed species of Tenuibranchiurus occurs in coastal NSW. For a number of years we have been researching this species. The Coffs Harbour research project contributed to the information base on this species but much more is required. This project will be ongoing in 2015 and well into 2020.
Cherax cuspidatus Redescription
The Coffs Harbour and Port Macquarie research projects both contributed tremendously to this project. A major project is the redescription and description of all Cherax species in eastern Australia. Cherax cuspidatus is the first of 3 Cherax species we will completed and published in 2015/16. Stay tuned for this redescription in 2015.
Aquatic Biodiversity Survey and Baseline Mapping of Freshwater Crayfish and Aquatic Species of the Port Macquarie-Hastings LGA coastal strip
Project 100062‐2 is completed. Aquatic Biodiversity Survey and Baseline Mapping of Freshwater Crayfish and Aquatic Species of the Port Macquarie‐Hastings LGA coastal strip. The final report was issue to Council in January 2014.
The main aim of this survey was to document the distribution of freshwater crayfish species within the Port Macquarie‐Hastings LGA coastal strip within 20 km of the coastline. Ephemeral creeks and swamps not normally surveyed were specifically targeted as these areas present suitable habitat for rare and endangered Gramastacus and Tenuibranchiurus crayfish. The survey was conducted between March 2013 and August 2013 representing a time frame including high flow and low flow periods. The survey concentrated on smaller creeks and swamps avoiding the larger streams and rivers. A total of 56 sites were surveyed specifically targeting freshwater crayfish with all other by‐catch species recorded. Of the 56 sites, 48 were ephemeral sites and 8 sites contained permanent water.
Despite our best efforts we were unable to identify any Gramastacus or Tenuibranchiurus freshwater crayfish in any of the freshwater habits surveyed. Much of the survey area represents suitable habitat, however we speculate that the Manning River floodplain to the south represents a barrier to dispersal and Gramastacus crayfish which are only found to the south of this significant barrier. Tenuibrachiurus crayfish were not confirmed from the area and have not been recorded south of Coffs Harbour to date.
The northern coastal yabby Cherax cuspidatus was found to be widespread and abundant throughout the lower altitude survey area. Currently, the International Union for the Conservation of Nature, Red List infers the species is in decline south of Port Macquarie. Our research indicates the opposite; we found the species to be widespread and abundant south of Port Macquarie. 23 Ephemeral sites contained the northern coastal yabby Cherax cuspidatus.
The Hairy Crayfish Euastacus reductus was found to be widespread and abundant throughout the flowing coastal mountain streams within the survey area.
The Giant Spiny Crayfish Euastacus spinifer was found to be present at a number of sites however, extensive suitable habitat was not available along the coastal strip of the survey area and numbers were seemingly low. Additionally, this survey concentrated on ephemeral areas and larger permanent streams were only an additional minimal priority. Broader ACP surveys indicate the species is abundant further inland.
Exceptionally good news was that no invasive freshwater crayfish species were documented with in the survey area.
Native gudgeons (firetail gudgeons Hypseleteotris galii, striped gudgeons Gobiomorphus australis and empire gudgeons Hypseleotris compressa) were widespread and abundant at 18 of the sites and exotic Gambusia holbrooki were widespread (12 sites) but at generally low abundance which was encouraging. However, at one site G. holbrooki was at plague proportions which was alarming.
The terrestrial weed Lantana (Lantana camara) was common at many coastal sites however it was not rampant.
Aquatic weeds were not common but salvina was a major problem north of the survey area
Generally, we found the aquatic health and condition of the creeks, streams and swamps within the survey area to be good.
Cherax destructor in eastern drainages
A scientific paper titled; “New records and review of the translocation of the yabby Cherax destructor into eastern drainages of New South Wales, Australia” has been published in the Australian Zoologist.
McCormack, R.B. (2014). New records and review of the translocation of the yabby Cherax destructor into eastern drainages of New South Wales, Australia. Australian Zoologist. Volume 37 (1) 85 – 94. ISSN 0067-2238 (Print). http://doi.org/10.7882/AZ.2014.006
Abstract: The blue claw yabby Cherax destructor is a native of the Murray Darling drainage basin in the interior of south-eastern Australia. In New South Wales (NSW) the species naturally occurs west of the Great Dividing Range but recently, it has become established in eastern parts of NSW, outside of its natural range. The potential threats and translocation of this species into eastern NSW was first documented at 20 sites by Coughran et al. (2009). This paper builds on their initial work and documents a further 52 translocation sites (Table 1) recorded over the last four years. In an effort to further our understanding of the threat, we present information on the dispersal of this species together with observational information on interactions with freshwater crayfish (Parastacidae) species and suggest recommendations to help slow the translocation process.
Giant dragonflies (Petalura) have larvae that dig burrows just like crayfish and as part of the ACP we dig them up thinking they are crayfish. The project takes us to remote or unusual regions and when we come across giant dragon fly larvae it creates interest from Petalura enthusiasts. This has lead to meeting Ian Baird one of the foremost experts on Petalura dragonflys. Our interests coincide and Ian has joined us to research the upper Hastings River and I’ve joined him to check out the highland swamps of the Blue Mountains. Ian is a fountain of information and a bunch of ACP volunteers and myself have learned a wealth of information from him. We will all be looking for giant dragon flies in the future to assist him with his research.
For some years now Hugh Jones has joined us for expeditions along the Clyde and Shoalhaven rivers. Hugh’s forte is freshwater mussels and we are all learning heaps from Hugh. As a result of Hugh’s education all ACP volunteers are seeking mussels as well as crayfish when we are in the field.
Hugh and I manned a stand at the Gloucester Platypus festival together for the second year in a row. Hugh touts the benefits of freshwater mussels to the ecosystem and I tout the benefits of freshwater crayfish.
New records and review of the distribution and ecology of freshwater crayfish (Crustacea, Decapoda, Parastacidae) of the southern catchment of the Clyde River, New South Wales, Australia.
Robert B McCormack and David Crass
Our paper is completed and final corrections are being done prior to submission. Aquatic biological surveys for freshwater crayfish were undertaken in the southern catchment of the Clyde River, New South Wales. 57 sites were surveyed, from 43 sites 192 crayfish were captured and examined with individual size, weight, sexual maturity, fecundity and physical condition recorded. The distributions of native Euastacus spinifer and Euastacus yanga are documented, together with biological and ecological information on species interactions and habitat partitioning.
Currently this paper is on hold awaiting genetic analysis as we found some interesting morphological variation between upper catchment and lower catchment species.