Freshwater Crayfish最新文献_第2页

Re-examination of Cambaroides koshewnikowi and C. wladiwostokiensis with Morphological Observations of the Antennules and Gastric Mill of the Cambaroididae Cambaroides koshewnikowi和C. wladiwostokiensis的再鉴定及Cambaroididae触须和胃磨的形态学观察

IF 0.8

Freshwater Crayfish Pub Date : 2022-12-31 DOI: 10.5869/fc.2022.v27-1.27

T. Kawai, E. Barabanshchikov

引用次数: 0

Resource Use by the Slenderwrist Burrowing Crayfish, Fallicambarus petilicarpus 细腕部穴居小龙虾的资源利用

IF 0.8

Freshwater Crayfish Pub Date : 2022-12-31 DOI: 10.5869/fc.2021.v27-1.1

Caitlin C Bloomer, Christopher A. Taylor, B. Wagner

{"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}

引用次数: 0

Mating Strategies of Invasive Versus Indigenous Crayfish: Multiple Paternity as a Driver for Invasion Success? 入侵与本土小龙虾的交配策略：多重亲子关系是入侵成功的驱动因素？

IF 0.8

Freshwater Crayfish Pub Date : 2021-12-31 DOI: 10.5869/fc.2021.v26-2.89

Caterina Francesconi, Mălina Pîrvu, A. Schrimpf, R. Schulz, L. Pârvulescu, K. Theissinger

{"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}

引用次数: 1

An Annotated Checklist of the Freshwater Crayfish of Virginia 弗吉尼亚淡水小龙虾的注释清单

IF 0.8

Freshwater Crayfish Pub Date : 2021-12-31 DOI: 10.5869/fc.2021.v26-2.99

P. Cabe, Sujan M. Henkanaththegedara, Brian T. Watson, Zachary J. Loughman, Roger F. Thoman

引用次数: 3

An Update of the Classification, Status, and Distribution of Canadian Freshwater Crayfishes 加拿大淡水小龙虾分类、现状和分布的最新进展

IF 0.8

Freshwater Crayfish Pub Date : 2021-12-31 DOI: 10.5869/fc.2021.v26-2.119

P. Hamr

引用次数: 2

Mating Behavior and Morphology of Imported Mexican Freshwater Crayfish (Cambarellinae: Cambaridae) in Japan 日本进口墨西哥淡水小龙虾的交配行为和形态

IF 0.8

Freshwater Crayfish Pub Date : 2021-12-31 DOI: 10.5869/fc.2021.v26-2.75

T. Kawai

引用次数: 0

Gill Morphology and Formulae of European Astacidae 欧洲虾科的鳃形态及配方

IF 0.8

Freshwater Crayfish Pub Date : 2021-12-31 DOI: 10.5869/fc.2021.v26-2.127

T. Kawai, T. Policar, A. Kouba

引用次数: 1

Is Aphanomyces astaci Losing its Stamina: A Latent Crayfish Plague Disease Agent From Lake Venesjärvi, Finland astaci Aphanomyces正在失去耐力吗：一种来自芬兰Venesjärvi湖的潜在小龙虾瘟疫病原体

IF 0.8

Freshwater Crayfish Pub Date : 2020-12-31 DOI: 10.5869/fc.2021.v26-2.139

J. Jussila, Caterina Francesconi, K. Theissinger, H. Kokko, Jenny Makkonen

{"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}

引用次数: 4

Evaluation of Four Practical Diets on the Growth and Survival of Juvenile Redclaw, Cherax quadricarinatus (von Martens, 1868) 四种实用日粮对红爪螯蟹幼鱼生长和存活的评价（von Martens，1868）

IF 0.8

Freshwater Crayfish Pub Date : 2020-12-23 DOI: 10.5869/FC.2021.V26-1.1

Damian P. Rigg, R. Courtney, Jamie E, Seymour, Clive Jones

{"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}

引用次数: 0

A review of juvenile redclaw crayfish Cherax quadricarinatus (von Martens, 1898) aquaculture: global production practices and innovation 红爪螯虾幼虾(Cherax quadricarinatus, von Martens, 1898)水产养殖:全球生产实践与创新

IF 0.8

Freshwater Crayfish Pub Date : 2020-04-25 DOI: 10.5869/fc.2020.v25-1.013

Damian P. Rigg, J. Seymour, R. Courtney, Clive Jones

引用次数: 11