Pub Date : 2022-12-31DOI: 10.5869/fc.2022.v27-1.27
T. Kawai, E. Barabanshchikov
The syntypes of the freshwater crayfish, Cambaroides koshewnikowi (Birstein and Vinogradov, 1934) and C. wladiwostokiensis (Birstein and Vinogradov, 1934), held in the Zoological Museum of Moscow University are re-examined, the type series are described and illustrated. Detailed information on geographical distribution, natural habitat and fecundity of Russian cambaroid species are provided. Also, morphological features of the gastric mill and the lateral ramus of the antennule of Cambaroides are exhibited for future examination of their phylogeny.
对莫斯科大学动物博物馆保存的淡水小龙虾Cambaroides koshewnikowi (Birstein and Vinogradov, 1934)和C. wladiwostokiensis (Birstein and Vinogradov, 1934)的模式进行了重新检查，并对类型系列进行了描述和说明。提供了俄罗斯形虫种类的地理分布、自然栖息地和繁殖力的详细资料。此外，Cambaroides的胃磨和触角侧支的形态特征也被展示出来，以便将来研究它们的系统发育。
{"title":"Re-examination of Cambaroides koshewnikowi and C. wladiwostokiensis with Morphological Observations of the Antennules and Gastric Mill of the Cambaroididae","authors":"T. Kawai, E. Barabanshchikov","doi":"10.5869/fc.2022.v27-1.27","DOIUrl":"https://doi.org/10.5869/fc.2022.v27-1.27","url":null,"abstract":"\u0000 The syntypes of the freshwater crayfish, Cambaroides koshewnikowi (Birstein and Vinogradov, 1934) and C. wladiwostokiensis (Birstein and Vinogradov, 1934), held in the Zoological Museum of Moscow University are re-examined, the type series are described and illustrated. Detailed information on geographical distribution, natural habitat and fecundity of Russian cambaroid species are provided. Also, morphological features of the gastric mill and the lateral ramus of the antennule of Cambaroides are exhibited for future examination of their phylogeny.","PeriodicalId":29940,"journal":{"name":"Freshwater Crayfish","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43352318","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Caitlin C Bloomer, Christopher A. Taylor, B. Wagner
Understanding species’ habitat and resource requirements is critical for effective conservation. To assess whether a species is imperiled, data are needed on its range and natural history. In this study, we examined the resource use, including diet and habitat associations, of the Slenderwrist Burrowing Crayfish, Fallicambarus petilicarpus, a narrowly endemic primary burrowing crayfish in southcentral Arkansas. We found that F. petilicarpus has an omnivorous diet, feeding on aquatic invertebrates and detritus. We compared habitat characteristics of sites in the Ouachita drainage that contained F. petilicarpus and sites with other primary burrowing crayfish. Fallicambarus petilicarpus inhabits roadside ditches with low elevation and reduced canopy cover, like other primary burrowing species in the region. Comparisons among burrowing crayfish suggest there may be overlap in environmental niches of species in this region and subsequent competition. Field sampling expanded the known range of F. petilicarpus from ~174 km2 to ~1150 km2. Fallicambarus petilicarpus remains a narrowly endemic species with potential to be threatened by habitat loss and food scarcity caused by urban expansion and climate change.
{"title":"Resource Use by the Slenderwrist Burrowing Crayfish, Fallicambarus petilicarpus","authors":"Caitlin C Bloomer, Christopher A. Taylor, B. Wagner","doi":"10.5869/fc.2021.v27-1.1","DOIUrl":"https://doi.org/10.5869/fc.2021.v27-1.1","url":null,"abstract":"\u0000 Understanding species’ habitat and resource requirements is critical for effective conservation. To assess whether a species is imperiled, data are needed on its range and natural history. In this study, we examined the resource use, including diet and habitat associations, of the Slenderwrist Burrowing Crayfish, Fallicambarus petilicarpus, a narrowly endemic primary burrowing crayfish in southcentral Arkansas. We found that F. petilicarpus has an omnivorous diet, feeding on aquatic invertebrates and detritus. We compared habitat characteristics of sites in the Ouachita drainage that contained F. petilicarpus and sites with other primary burrowing crayfish. Fallicambarus petilicarpus inhabits roadside ditches with low elevation and reduced canopy cover, like other primary burrowing species in the region. Comparisons among burrowing crayfish suggest there may be overlap in environmental niches of species in this region and subsequent competition. Field sampling expanded the known range of F. petilicarpus from ~174 km2 to ~1150 km2. Fallicambarus petilicarpus remains a narrowly endemic species with potential to be threatened by habitat loss and food scarcity caused by urban expansion and climate change.","PeriodicalId":29940,"journal":{"name":"Freshwater Crayfish","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46060993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-31DOI: 10.5869/fc.2021.v26-2.89
Caterina Francesconi, Mălina Pîrvu, A. Schrimpf, R. Schulz, L. Pârvulescu, K. Theissinger
The invasive spiny-cheek crayfish (Faxonius limosus) has been able to colonize many European waterbodies since its first introduction into Europe, threatening the indigenous crayfish fauna. The remarkable reproductive plasticity of this species has been suggested as an important factor contributing to the alarming invasiveness of this species. In this study, we compared the reproductive strategies of an invasive (F. limosus) and a sympatric indigenous crayfish (Pontastacus leptodactylus). We questioned if the reproductive abilities, namely parthenogenesis and multiple paternity, may contribute to an ongoing invasion process in the Lower Danube. Using microsatellites, we genotyped the mothers and their offspring from 11 clutches of F. limosus and 18 clutches of P. leptodactylus. While no parthenogenesis has been found in F. limosus populations, multiple paternity has been detected for the first time in both species, with comparable incidence. The results of the study indicate that multiple paternity does not play a dominant role in the successful colonization of F. limosus in the Danube. However, the presented results have to be regarded as a pilot study, with a limited number of samples and loci investigated. Given the relevance of mating system knowledge for management measures, future studies with larger sample number could provide valuable contributions to ongoing conservation actions.
{"title":"Mating Strategies of Invasive Versus Indigenous Crayfish: Multiple Paternity as a Driver for Invasion Success?","authors":"Caterina Francesconi, Mălina Pîrvu, A. Schrimpf, R. Schulz, L. Pârvulescu, K. Theissinger","doi":"10.5869/fc.2021.v26-2.89","DOIUrl":"https://doi.org/10.5869/fc.2021.v26-2.89","url":null,"abstract":"The invasive spiny-cheek crayfish (Faxonius limosus) has been able to colonize many European waterbodies since its first introduction into Europe, threatening the indigenous crayfish fauna. The remarkable reproductive plasticity of this species has been suggested as an important factor contributing to the alarming invasiveness of this species. In this study, we compared the reproductive strategies of an invasive (F. limosus) and a sympatric indigenous crayfish (Pontastacus leptodactylus). We questioned if the reproductive abilities, namely parthenogenesis and multiple paternity, may contribute to an ongoing invasion process in the Lower Danube. Using microsatellites, we genotyped the mothers and their offspring from 11 clutches of F. limosus and 18 clutches of P. leptodactylus. While no parthenogenesis has been found in F. limosus populations, multiple paternity has been detected for the first time in both species, with comparable incidence. The results of the study indicate that multiple paternity does not play a dominant role in the successful colonization of F. limosus in the Danube. However, the presented results have to be regarded as a pilot study, with a limited number of samples and loci investigated. Given the relevance of mating system knowledge for management measures, future studies with larger sample number could provide valuable contributions to ongoing conservation actions.","PeriodicalId":29940,"journal":{"name":"Freshwater Crayfish","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49125635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-31DOI: 10.5869/fc.2021.v26-2.99
P. Cabe, Sujan M. Henkanaththegedara, Brian T. Watson, Zachary J. Loughman, Roger F. Thoman
We used existing collection records to summarize the current understanding of freshwater crayfish diversity in Virginia. Virginia includes both Atlantic slope drainages and tributaries of the Tennessee and Ohio Rivers which flow to the Gulf of Mexico via the Mississippi River. The state’s varied topography produces a wide range of freshwater habitats from mountain-side springs and seeps to rushing mountain streams to warm, turbid rivers and the lentic habitats of the coastal plain. We report distributional patterns of 31 species and one subspecies. About 20% of the species reported are introduced, one native species is federally listed as threatened, and several other taxa are species of conservation concern. A number of yet-to-be-described taxa with highly limited distributions will likely need protection. We hope the data included will prove useful in future efforts to understand the diversity of these fascinating and ecologically important animals in Virginia and will further the resolution of Virginia’s complete crayfish fauna.
{"title":"An Annotated Checklist of the Freshwater Crayfish of Virginia","authors":"P. Cabe, Sujan M. Henkanaththegedara, Brian T. Watson, Zachary J. Loughman, Roger F. Thoman","doi":"10.5869/fc.2021.v26-2.99","DOIUrl":"https://doi.org/10.5869/fc.2021.v26-2.99","url":null,"abstract":"\u0000 We used existing collection records to summarize the current understanding of freshwater crayfish diversity in Virginia. Virginia includes both Atlantic slope drainages and tributaries of the Tennessee and Ohio Rivers which flow to the Gulf of Mexico via the Mississippi River. The state’s varied topography produces a wide range of freshwater habitats from mountain-side springs and seeps to rushing mountain streams to warm, turbid rivers and the lentic habitats of the coastal plain. We report distributional patterns of 31 species and one subspecies. About 20% of the species reported are introduced, one native species is federally listed as threatened, and several other taxa are species of conservation concern. A number of yet-to-be-described taxa with highly limited distributions will likely need protection. We hope the data included will prove useful in future efforts to understand the diversity of these fascinating and ecologically important animals in Virginia and will further the resolution of Virginia’s complete crayfish fauna.","PeriodicalId":29940,"journal":{"name":"Freshwater Crayfish","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45495005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-31DOI: 10.5869/fc.2021.v26-2.119
P. Hamr
There are presently twelve species of freshwater crayfishes recognized in Canada. Due to the recent reclassification of three of the genera present in Canada as well as the discovery of an additional species of the burrowing Paintedhand Mudbug, there arose some confusion with respect to the nomenclature as well as the total number of species found in Canada. This review updates the taxonomy, status, distribution and nomenclature of Canadian freshwater crayfishes. A new and updated taxonomic key to the Canadian species is provided. The possible invasions of Canadian waters by the Red Swamp Crawfish as well as the Marbled Crayfish are discussed.
{"title":"An Update of the Classification, Status, and Distribution of Canadian Freshwater Crayfishes","authors":"P. Hamr","doi":"10.5869/fc.2021.v26-2.119","DOIUrl":"https://doi.org/10.5869/fc.2021.v26-2.119","url":null,"abstract":"There are presently twelve species of freshwater crayfishes recognized in Canada. Due to the recent reclassification of three of the genera present in Canada as well as the discovery of an additional species of the burrowing Paintedhand Mudbug, there arose some confusion with respect to the nomenclature as well as the total number of species found in Canada. This review updates the taxonomy, status, distribution and nomenclature of Canadian freshwater crayfishes. A new and updated taxonomic key to the Canadian species is provided. The possible invasions of Canadian waters by the Red Swamp Crawfish as well as the Marbled Crayfish are discussed.","PeriodicalId":29940,"journal":{"name":"Freshwater Crayfish","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46312233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-31DOI: 10.5869/fc.2021.v26-2.75
T. Kawai
In the present study, for the first time the Mexican freshwater crayfish reported in the Japanese aquarium pet trade is identified as Cambarellus patzcuarensis. This diagnosis is based on the morphological description of key characters, such as the gastric mill, mandible, and gill, which are also illustrated. Information on the introduction history and legislation of the species in Japan is provided. Mating behaviour of the species was observed under laboratory conditions and is described.
{"title":"Mating Behavior and Morphology of Imported Mexican Freshwater Crayfish (Cambarellinae: Cambaridae) in Japan","authors":"T. Kawai","doi":"10.5869/fc.2021.v26-2.75","DOIUrl":"https://doi.org/10.5869/fc.2021.v26-2.75","url":null,"abstract":"\u0000 In the present study, for the first time the Mexican freshwater crayfish reported in the Japanese aquarium pet trade is identified as Cambarellus patzcuarensis. This diagnosis is based on the morphological description of key characters, such as the gastric mill, mandible, and gill, which are also illustrated. Information on the introduction history and legislation of the species in Japan is provided. Mating behaviour of the species was observed under laboratory conditions and is described.","PeriodicalId":29940,"journal":{"name":"Freshwater Crayfish","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47823986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2021-12-31DOI: 10.5869/fc.2021.v26-2.127
T. Kawai, T. Policar, A. Kouba
We examined gills (podobranchs, arthrobranchs and pleurobranchs) from five European Astacidae (Austropotamobius pallipes, Austropotamobius torrentium, Astacus astacus, Pontastacus leptodactylus and Pontastacus pachypus) to assess the relationships between their phylogeny and gill morphology and formulae. In addition, we checked for the presence or absence of pleurocoxal lappets. The morphology of the gills and associated structures was similar in all examined European astacid species except for three rudimentary pleurobranchs found in P. pachypus. In European Astacidae and Cambaroididae, the pleurocoxal lappets are absent but are present in the American Astacidae, Cambaridae and Parastacidae. The number of pleurobranchs decreases from the most primitive Parastacidae to the most advanced Cambaridae. Nevertheless, although the most primitive parastacid crayfish and the most advanced Cambaridae all have pleurocoxal lappets, they are absent in European Astacidae and Cambaroididae, which suggests that a reversible gill morphology has occurred in crayfish evolution.
{"title":"Gill Morphology and Formulae of European Astacidae","authors":"T. Kawai, T. Policar, A. Kouba","doi":"10.5869/fc.2021.v26-2.127","DOIUrl":"https://doi.org/10.5869/fc.2021.v26-2.127","url":null,"abstract":"\u0000 We examined gills (podobranchs, arthrobranchs and pleurobranchs) from five European Astacidae (Austropotamobius pallipes, Austropotamobius torrentium, Astacus astacus, Pontastacus leptodactylus and Pontastacus pachypus) to assess the relationships between their phylogeny and gill morphology and formulae. In addition, we checked for the presence or absence of pleurocoxal lappets. The morphology of the gills and associated structures was similar in all examined European astacid species except for three rudimentary pleurobranchs found in P. pachypus. In European Astacidae and Cambaroididae, the pleurocoxal lappets are absent but are present in the American Astacidae, Cambaridae and Parastacidae. The number of pleurobranchs decreases from the most primitive Parastacidae to the most advanced Cambaridae. Nevertheless, although the most primitive parastacid crayfish and the most advanced Cambaridae all have pleurocoxal lappets, they are absent in European Astacidae and Cambaroididae, which suggests that a reversible gill morphology has occurred in crayfish evolution.","PeriodicalId":29940,"journal":{"name":"Freshwater Crayfish","volume":"1 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2021-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44091516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-12-31DOI: 10.5869/fc.2021.v26-2.139
J. Jussila, Caterina Francesconi, K. Theissinger, H. Kokko, Jenny Makkonen
The crayfish plague disease agent, Aphanomyces astaci, has coevolved with the native European crayfish since its arrival to mainland Europe in the 1860s. There are indications that some of the A. astaci strains are of reduced virulence, while the resistance against A. astaci infection varies among native European crayfish stocks. In Lake Venesjärvi, Finland, a potential case of latent crayfish plague infection was observed in the early 2000s. We have isolated an oomycete from live Astacus astacus originating from Lake Venesjärvi and identified it as A. a staci of haplogroup A by specific qPCR, nuclear ITS and mitochondrial LSU and SSU sequencies, and named the isolate as UEF_VEN5/14. The A. astaci was isolated from a potentially latently infected A. astacus, subsequently identified, genotyped and proven to be of reduced virulence in a separate infection challenge experiment under laboratory conditions. These findings add to speculations of rather rapid coevolution of A. astaci and European native crayfish and support the reports on latent crayfish plague infections among wild native European crayfish.
{"title":"Is Aphanomyces astaci Losing its Stamina: A Latent Crayfish Plague Disease Agent From Lake Venesjärvi, Finland","authors":"J. Jussila, Caterina Francesconi, K. Theissinger, H. Kokko, Jenny Makkonen","doi":"10.5869/fc.2021.v26-2.139","DOIUrl":"https://doi.org/10.5869/fc.2021.v26-2.139","url":null,"abstract":"\u0000 The crayfish plague disease agent, Aphanomyces astaci, has coevolved with the native European crayfish since its arrival to mainland Europe in the 1860s. There are indications that some of the A. astaci strains are of reduced virulence, while the resistance against A. astaci infection varies among native European crayfish stocks. In Lake Venesjärvi, Finland, a potential case of latent crayfish plague infection was observed in the early 2000s. We have isolated an oomycete from live Astacus astacus originating from Lake Venesjärvi and identified it as A. a staci of haplogroup A by specific qPCR, nuclear ITS and mitochondrial LSU and SSU sequencies, and named the isolate as UEF_VEN5/14. The A. astaci was isolated from a potentially latently infected A. astacus, subsequently identified, genotyped and proven to be of reduced virulence in a separate infection challenge experiment under laboratory conditions. These findings add to speculations of rather rapid coevolution of A. astaci and European native crayfish and support the reports on latent crayfish plague infections among wild native European crayfish.","PeriodicalId":29940,"journal":{"name":"Freshwater Crayfish","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49398184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Damian P. Rigg, R. Courtney, Jamie E, Seymour, Clive Jones
Redclaw, Cherax quadricariatus (von Martens) has shown promise as an aquaculture species but commercial development has been constrained by variability of production, perhaps due to poor survival and growth of early craylings. Diet contributes to survival and growth and previous studies have determined requirements for larger redclaw, but little research exists for the early craylings. An experiment was performed to evaluate survival and growth of early instar redclaw using four diets; Frippak (commercial shrimp diet), CSIRO compound diet, bloodworms, and on-grown Artemia. Bloodworms and Artemia produced significantly higher survival of craylings over two weeks than the two other diets. Artemia diet had a significantly higher weight increase than bloodworms or the CSIRO diet, but not Frippak, which did not differ from bloodworms or CSIRO. Biomass was significantly higher when fed Artemia. High mortality in the Frippak and CSIRO diet treatments were not wholly attributable to nutritional deficiencies as the manufactured diets became less physically accessible, potentially reducing intake, leading to difficulties completing ecdysis and eventually death. This study concluded that Artemia and bloodworms promoted highest survival, and Artemia and Frippak the highest weight gain. The best combination of survival, weight gain and biomass was with the Artemia diet.
{"title":"Evaluation of Four Practical Diets on the Growth and Survival of Juvenile Redclaw, Cherax quadricarinatus (von Martens, 1868)","authors":"Damian P. Rigg, R. Courtney, Jamie E, Seymour, Clive Jones","doi":"10.5869/FC.2021.V26-1.1","DOIUrl":"https://doi.org/10.5869/FC.2021.V26-1.1","url":null,"abstract":"\u0000 Redclaw, Cherax quadricariatus (von Martens) has shown promise as an aquaculture species but commercial development has been constrained by variability of production, perhaps due to poor survival and growth of early craylings. Diet contributes to survival and growth and previous studies have determined requirements for larger redclaw, but little research exists for the early craylings. An experiment was performed to evaluate survival and growth of early instar redclaw using four diets; Frippak (commercial shrimp diet), CSIRO compound diet, bloodworms, and on-grown Artemia. Bloodworms and Artemia produced significantly higher survival of craylings over two weeks than the two other diets. Artemia diet had a significantly higher weight increase than bloodworms or the CSIRO diet, but not Frippak, which did not differ from bloodworms or CSIRO. Biomass was significantly higher when fed Artemia. High mortality in the Frippak and CSIRO diet treatments were not wholly attributable to nutritional deficiencies as the manufactured diets became less physically accessible, potentially reducing intake, leading to difficulties completing ecdysis and eventually death. This study concluded that Artemia and bloodworms promoted highest survival, and Artemia and Frippak the highest weight gain. The best combination of survival, weight gain and biomass was with the Artemia diet.","PeriodicalId":29940,"journal":{"name":"Freshwater Crayfish","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2020-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48136295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2020-04-25DOI: 10.5869/fc.2020.v25-1.013
Damian P. Rigg, J. Seymour, R. Courtney, Clive Jones
The Australian Redclaw crayfish, Cherax quadricarinatus, has been the subject of aquaculture development for more than 3 decades. Farm production from Australia and from around the world for this species has been relatively low, as suitable production technology continues to develop. The production of redclaw juveniles for the purpose of stocking to ponds for on-growing to marketable size, has been a particular constraint and new approaches to breeding and mass production of craylings have provided renewed impetus to industry expansion. This paper reviews the literature concerning redclaw juvenile production and provides a status report of current practices and innovations that may support further expansion of redclaw aquaculture.
{"title":"A review of juvenile redclaw crayfish Cherax quadricarinatus (von Martens, 1898) aquaculture: global production practices and innovation","authors":"Damian P. Rigg, J. Seymour, R. Courtney, Clive Jones","doi":"10.5869/fc.2020.v25-1.013","DOIUrl":"https://doi.org/10.5869/fc.2020.v25-1.013","url":null,"abstract":"\u0000 The Australian Redclaw crayfish, Cherax quadricarinatus, has been the subject of aquaculture development for more than 3 decades. Farm production from Australia and from around the world for this species has been relatively low, as suitable production technology continues to develop. The production of redclaw juveniles for the purpose of stocking to ponds for on-growing to marketable size, has been a particular constraint and new approaches to breeding and mass production of craylings have provided renewed impetus to industry expansion. This paper reviews the literature concerning redclaw juvenile production and provides a status report of current practices and innovations that may support further expansion of redclaw aquaculture.","PeriodicalId":29940,"journal":{"name":"Freshwater Crayfish","volume":" ","pages":""},"PeriodicalIF":0.8,"publicationDate":"2020-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48114663","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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