Bulletin Francais De La Peche Et De La Pisciculture最新文献

{"title":"GUIDE POUR L'INTERPRÉTATION DES ÉCAILLES ET L'ESTIMATION DE L'ÂGE CHEZ LES ALOSES (ALOSA SPP.) DE LA FAÇADE ATLANTIQUE-EST ET DE LA MÉDITERRANÉE-OUEST.","authors":"J. Bagliniere, M. Sabatié, M. Aprahamian, P. Alexandrino, C. D. Aprahamian, C. A. Assis, J. J. Cassou-Leins, M. L. Corre, C. Mennesson-Boisneau, D. Martin-Vandembulcke, E. Rochard, Célia M. Teixeira","doi":"10.1051/KMAE:2001001","DOIUrl":"https://doi.org/10.1051/KMAE:2001001","url":null,"abstract":"L'objectif general de ce guide est de fournir un manuel d'utilisation et d'interpretation des ecailles pour l'estimation de l'âge chez les aloses de l'Atlantique-Est et de Mediterranee-Ouest (Grande Alose, Alose feinte atlantique et mediterraneenne). Apres un presentation rapide des especes, populations et fleuves analyses, les ecailles d'aloses et les methodes de recolte, de preparation et de montage les concernant sont decrites en detail. Des definitions et un systeme de notation de l'âge standards sont donnes. La grande majorite des difficultes rencontrees pour l'interpretation des ecailles sont analysees en proposant des solutions et en donnant certaines recommandations. L'ensemble de ce guide est largement illustre a l'aide d'exemples d'ecailles typiques et atypiques choisis chez tous les taxons des differentes populations etudiees.","PeriodicalId":106834,"journal":{"name":"Bulletin Francais De La Peche Et De La Pisciculture","volume":"1999 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123547323","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}

{"title":"A COMPARATIVE STUDY ON THE FEEDING COMPETITION OF THE EUROPEAN PERCH PERCA FLUVIATILIS L. AND THE RUFFE GYMNOCEPHALUS CERNUUS (L.) IN LAKE PIEDILUCO (UMBRIA, ITALY).","authors":"M. Lorenzoni, A. Carosi, Giovanni Pedicillo, A. Trusso","doi":"10.1051/kmae:2007016","DOIUrl":"https://doi.org/10.1051/kmae:2007016","url":null,"abstract":"The abundance of European perch in Lake Piediluco has significantly dwindled in the last few years. The present study on diet overlap between perch and ruffe was prompted by the rapid expansion of the ruffe stock in the lake. This species was first found in the lake in 1996 and has since become one of the most abundant. The degree of diet overlap between the two species was analyzed by using data on the stomach contents of 275 European perch and 328 ruffe. Results are expressed as abundance (%N), occurrence (%S), weight percentage (%W) and index of predominance (Ip ). The diet overlap index (α) was calculated by means of Schoener’s formula using the %W of each food item. As an estimate of the diet width of both species, we used Levins’ indexes of niche breadth (B) and standardized measurement of niche breadth (BA). Both species are strictly carnivorous, feeding mainly on invertebrates: the most important diet components were dipterans and crustaceans, but the European perch also feeds on fish. In the perch, the Levins index was greater (B=4.332) than that calculated for the ruffe (B=2.262). During the ontogenesis of the European perch, there is a rather pronounced diet shift: dipterans form the largest portion of the diet at all ages, though in older perch fish-eating becomes increasingly evident. Benthic crustaceans tend to be consumed in greater quantities by the 3+ age-class, though they are also found in the stomachs of specimens of all ages. Ruffe, by contrast, do not display a pronounced ontogenetic diet shift.The index of diet overlap between the two species was rather high, the maximum α value being 0.853; values indicate a high degree of diet overlap in the younger ageclasses (1+, 2+ and 3+), with a greater differentiation between the diets of the two species emerging as the age of the perch increased.Our research also clarified some of the biological characteristics of the European perch in Lake Piediluco, namely, theoretical growth in length, weight at length and relative weight. These analyses enabled us to compare the growth characteristics of the European perch during periods when ruffe stocks differed in terms of abundance. All of the results indicate that the growth conditions of the European perch population in Lake Piediluco are steadily worsening. This provides indirect confirmation of a negative interaction with the ruffe.","PeriodicalId":106834,"journal":{"name":"Bulletin Francais De La Peche Et De La Pisciculture","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127222199","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}

{"title":"PLEOPODAL EGG PRODUCTION OF THE WHITE-CLAWED CRAYFISH AUSTROPOTAMOBIUS PALLIPES LEREBOULLET UNDER LABORATORY CONDITIONS: RELATIONSHIP BETWEEN EGG NUMBER, EGG DIAMETER AND FEMALE SIZE","authors":"M. Sáez-Royuela, J. Carral, J. D. Celada, J. R. Pérez, Á. González","doi":"10.1051/KMAE/20061207","DOIUrl":"https://doi.org/10.1051/KMAE/20061207","url":null,"abstract":"Reproductive data from a total number of 1296 adult white-clawed crayfish (864 females mean carapace length size 3.36 ± 0.49 cm and 432 males mean carapace length size 3.66 ± 0.38 cm) are reported. In a 10-year period, crayfish from wild populations caught in mid September were kept under indoor laboratory conditions where mating and spawning took place. Broodstock mortality was low: 5% in females and 1.1% in males. From the initial number of females, 771 mated (89.2%) and 721 spawned (83.4%). Pleopodal eggs were counted without removal between 3 and 20 days after spawning and mean number was 73.5 ± 34.1 (range 14-220). Egg diameter of 94 females was measured giving a mean value of 2.39 ± 0.015 mm (range 2.08-2.79 mm). Correlations between female size (carapace length CL), number of pleopodal eggs and egg diameter were made.","PeriodicalId":106834,"journal":{"name":"Bulletin Francais De La Peche Et De La Pisciculture","volume":"108 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127574005","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}

{"title":"UTILIZATION OF WATER CRESS (NASTURTIUM OFFICINALE L.) IN NOBLE CRAYFISH (ASTACUS ASTACUS) FEEDING","authors":"E. D’Agaro","doi":"10.1051/KMAE:2006024","DOIUrl":"https://doi.org/10.1051/KMAE:2006024","url":null,"abstract":"Juvenile Astacus astacus (initial b.w.: 0.98 ± 0.06 g) were cultured (30 crayfish/m 2 ) in 200l tanks for 69 days. The experimental design was composed of three treatments as follows: control diet (C) (crude protein: 28.4% of the total dried matter, “DM”; ether extract: 6.22% DM), water cress (W) (crude protein: 20.7% DM; ether extract: 1.9% DM) and control diet + water cress (C + W) with thee replicates per treatment. Relative growth rate improved significantly (P < 0.05) in crayfish fed C + W (+ 110%) compared to W (+ 43%) and the control diet (+ 36%). Gross protein and lipid retentions of the treatment C + W were significantly higher than the control diet and water cress fed alone. At the end of the experiment, a higher survival rate of A. astacus was observed (P < 0.05) in the treatment C + W (67%) and C (71%) compared to the W (58%). These results suggest that the plant water cress (Nasturtium officinale) can be used as supplemental food in noble crayfish feeding.","PeriodicalId":106834,"journal":{"name":"Bulletin Francais De La Peche Et De La Pisciculture","volume":"115 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127235580","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}

{"title":"DEVELOPMENT OF A HABITAT SUITABILITY INDEX FOR THE NOBLE CRAYFISH ASTACUS ASTACUS USING FUZZY MODELLING","authors":"S. Zuther, H. Schulz, Annette Lentzen-Godding, R. Schulz","doi":"10.1051/KMAE:2005029","DOIUrl":"https://doi.org/10.1051/KMAE:2005029","url":null,"abstract":"A Geographic Information System (GIS) and fuzzy modelling were used to develop a habitat suitability index for the noble crayfish, Astacus astacus. The model is based on crayfish distribution data for the federal state Hesse, Germany, which had been recorded between 1988 and 1996. It includes 185 sites with noble crayfish in 126 watercourses. Official data on the morphological quality of surface waters recorded between 1996 and 1998 by order of the Ministry of Hesse for Environment, Rural Areas and Consumers Protection was used to describe the habitat features. One third of the crayfish sites was selected by chance to determine habitat properties significantly associated with crayfish occurrence by means of the Kolmogorov-Smirnoff test and frequency analysis. Meaningless associations were excluded based on expert knowledge. Five parameters related to the structure of the riverbed and the bankside were incorporated in the fuzzy model. The model was complemented by a number of parameters known to exclude the occurrence of the noble crayfish (e.g. pipes, concrete embankments). Finally, a habitat suitability index for every stretch of water in Hesse was calculated. The predictive power of the fuzzy model was tested on the remaining distribution data set for Astacus astacus. The habitat suitability index differed slightly but significantly (p < 0.001) between sites with and sites without crayfish occurrence. Fuzzy modelling proved to be useful for assessing habitat suitability with respect to crayfish, though further improvements of the model appeared to be necessary for a more reliable prediction of noble crayfish sites.","PeriodicalId":106834,"journal":{"name":"Bulletin Francais De La Peche Et De La Pisciculture","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126120029","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}

{"title":"DIETARY PATTERNS IN STREAM- AND LAKE-DWELLING POPULATIONS OF AUSTROPOTAMOBIUS PALLIPES","authors":"J. Reynolds, C. O'Keeffe","doi":"10.1051/kmae:2005028","DOIUrl":"https://doi.org/10.1051/kmae:2005028","url":null,"abstract":"White-clawed crayfish (Austropotamobius pallipes) are widespread in Ireland in both running and standing water, although stream-dwelling in much of their range elsewhere. A detailed comparative study of a lake and a stream population demonstrated that diets changed with crayfish size from feeding on entomostracans to a predominance of aquatic macrophytes and terrestrial vegetation. However, carnivory remained important at all sizes: Gammarids were a significant component in larger lake crayfish and in all sizes of stream crayfish. Fish increased in importance with crayfish size. A. pallipes thus appears more carnivorous than some other European and American crayfish. The extent to which this is related to habitat is discussed.","PeriodicalId":106834,"journal":{"name":"Bulletin Francais De La Peche Et De La Pisciculture","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134137887","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}

{"title":"STATUS OF FRESHWATER CRAYFISH IN LATVIA","authors":"A. Arens, T. Taugbøl","doi":"10.1051/KMAE:2005011","DOIUrl":"https://doi.org/10.1051/KMAE:2005011","url":null,"abstract":"There are three crayfish species present in Latvia: the European noble crayfish (Astacus astacus), the narrow-clawed crayfish (Astacus leptodactylus), and the NorthAmerican signal crayfish (Pacifastacus leniusculus) species. Probably only noble crayfish are native and migrated into the country after the last glaciation. Narrow-clawed crayfish has also been present at least since the beginning of the 20 th century. In total there are current information on crayfish from 258 localities in Latvia. Most of these localities are lakes (175), but many crayfish populations are also found in river and streams (66). A few populations are found in reservoirs, ponds and gravel-pits. The noble crayfish (Astacus astacus) is the dominant crayfish species and widely distributed in all regions of Latvia. 220 out of 258 crayfish localities contain only noble crayfish. The situation is much the same as in the 1960s, the most obvious change being that more noble crayfish populations are established in the area south of Riga. The narrowclawed crayfish has expanded its distribution since the 1960s when it was reported in 13 localities. Current records include 34 populations and eight of these are coexisting with noble crayfish. Previously, the narrow-clawed crayfish was confined to the southern part of the country. The present distribution includes several populations around Riga and in other parts of the Vidzeme region. The signal crayfish was introduced to one small lake in 1983. In 2004 it is found in another three localities (two rivers and one gravel-pit) quite a distance from the first locality. This indicates stocking by man and not a natural dispersal. Probably the signal crayfish is more widespread than the current data show. Further in this paper, we present information on crayfish legislation, harvest and farming. The threats to the noble crayfish and the main objectives for crayfish conservation and use are also discussed.","PeriodicalId":106834,"journal":{"name":"Bulletin Francais De La Peche Et De La Pisciculture","volume":"56 34","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120815839","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}

{"title":"STATUS OF AUSTROPOTAMOBIUS PALLIPES COMPLEX IN THE WATERCOURSES OF THE ALESSANDRIA PROVINCE (N-W ITALY)","authors":"P. A. Nardi, F. Bernini, T. Bo, A. Bonardi, G. Fea, D. Ghia, A. Negri, E. Razzetti, S. Rossi, M. Spairani","doi":"10.1051/KMAE:2005017","DOIUrl":"https://doi.org/10.1051/KMAE:2005017","url":null,"abstract":"Information was gathered on the distribution of white-clawed crayfish Austropotamobius pallipes complex in the watercourses of the Alessandria province (NW Italy), on the biological and ecological preferences of the species, and on the features of the biotopes in which it is found. A total of 409 sites on 361 watercourses connected to the main sub-basins of the Po River were analysed, with data gathered during the field research phase, conducted for three consecutive summers from 2002 through 2004. Thirteen percent of the sites investigated were found to currently house crayfish populations. The persistence in time of superficial water and natural morphology of the watercourse were found to be the chief requirements for the presence of crayfish. Data on land use, human density and other factors which potentially limit the survival of crayfish populations were also analysed.","PeriodicalId":106834,"journal":{"name":"Bulletin Francais De La Peche Et De La Pisciculture","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127554371","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}

{"title":"NATIVE AND ALIEN DECAPODA SPECIES IN HUNGARY:DISTRIBUTION, STATUS, CONSERVATION IMPORTANCE","authors":"M. Puky, J. Reynolds, P. Schad","doi":"10.1051/KMAE:2005015","DOIUrl":"https://doi.org/10.1051/KMAE:2005015","url":null,"abstract":"Three native (Astacus astacus, Astacus leptodactylus, Austropotamobius torrentium) and three alien (Orconectes limosus, Pacifastacus leniusculus, Eriocheir sinensis) Decapoda species have been found in Hungary so far. A. astacus is the most widespread Decapoda species in Hungary. A. leptodactylus might be considered as the least studied. The distribution of A. torrentium in Hungary is restricted to mountain streams with occasional data on its presence in the adjacent section of the River Danube. The indigenous species A. torrentium and, especially A. astacus, are declining while A. leptodactylus seems to have stable populations. The detection of alien species accelerated at the turn of the century: O. limosus was found at new sites, P. leniusculus was first recorded in the Gyongyosstream near the Austrian border in 2000, E. sinensis in the main arm of the Danube at Budapest in November 2003. As there is a lack of information even on the commonest species, conservation-oriented mapping is necessary to follow the distribution changes of Decapoda in Hungary.","PeriodicalId":106834,"journal":{"name":"Bulletin Francais De La Peche Et De La Pisciculture","volume":"140 9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129088771","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}

{"title":"EXPLOITATION IS A PREREQUISITE FOR CONSERVATION OF ASTACUS ASTACUS","authors":"T. Taugbøl","doi":"10.1051/KMAE:2004002","DOIUrl":"https://doi.org/10.1051/KMAE:2004002","url":null,"abstract":"The noble crayfish, Astacus astacus, is highly valued from a recreational and economical point of view. In most noble crayfish areas, there are long traditions of crayfish catching. The noble crayfish is also included in national and international Red Lists as a vulnerable or threatened species. Intuitively, the first thought is that such a species should be protected from exploitation. However, in many cases the possibility for exploitation and local economic benefits may be important for the conservation of the species. For the noble crayfish this is especially true. The greatest threat against noble crayfish is the man-facilitated spread of plague-carrying alien crayfish species. If local people are allowed and encouraged to catch and make a benefit from noble crayfish, this is also the best protection against illegal stocking of alien crayfish. The possibility to exploit the crayfish is of major importance for the will to protect. Examples from Norway showing different ways of getting an economical and recreational outcome from the noble crayfish are presented.","PeriodicalId":106834,"journal":{"name":"Bulletin Francais De La Peche Et De La Pisciculture","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-05-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132776310","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}