{"title":"Efficacy of Tamarind Tamarindus indica Leaves and Mango Mangifera indica Leaves as Feed Additives on Growth, Blood Status and Resistance to Aeromonas hydrophila in Juvenile African Catfish Clarias gariepinus","authors":"S. Olusola, Igbekele Joshua Ajiwoju, B. Emikpe","doi":"10.2478/cjf-2020-0002","DOIUrl":"https://doi.org/10.2478/cjf-2020-0002","url":null,"abstract":"Abstract This study investigated the efficacy of Tamarind Leaves (TL) and Mango Leaves (ML) with Oxytetracycline (OXY) on growth performance, haematoimmunological and disease resistance of Clarias gariepinus juveniles against Aeromonas hydrophila. Experimental diets consist of control (0%), TL2 (1%), TL3 (2%), ML4 (1%), ML5 (2%), OXY6 (30mg/kg diet), (TL+ML) 7, (TL+OXY) 8, (ML+OXY) 9 and (TL+ML+OXY) 10. The fish (3.02±0.01g) were replicated twice with 20 fish per replicate and were fed twice daily at 3% body weight of 40% crude protein for twelve weeks (8 weeks for feeding trial and 4 weeks for challenge test). Mean Weight Gain (MWG), Specific Growth Rate (SGR), Packed Cell Volume (PCV), Haemoglobin (Hb), Lymphocytes (LYM), Globulin (GLO), Amino Alanine Transferase (ALT) and Aspertate Amino Transferase (AST) contents were ascertained using standard technique. The fish were infected with A. hydrophila at 5.94 log10 CFU/ml interperitoneally and fed different diets to evaluate their Relative Percent of Survival (RPS). Data was subjected to descriptive statistics and one-way analysis of variance at P=0.05. Clarias gariepinus juveniles fed treated diets had higher growth rates than the control diet but C. gariepinus fed (TL+ML+OXY) 10 had a significantly higher MWG and SGR of 7.74±0.69 g and 0.97±0.01 g, respectively. The PCV (44.0±2.00%), Hb (14.7±2.00 g/dl), LYM (37.0±2.00), GLO (42.0 ±2.00 g/dl) were higher in the C. gariepinus fed (TL+ML+OXY) 10 than the control diet. The AST and ALT values among the treated groups were lower than the values in the control at the post-challenge test. The RPS against A. hydrophila was higher in the treated groups (100%) than in the control (0%). Fish fed tamarind and mango leaves had enhanced mean weight gain and were more resistant to A. hydrophila infection.","PeriodicalId":38161,"journal":{"name":"Ribarstvo, Croatian Journal of Fisheries","volume":"78 1","pages":"11 - 20"},"PeriodicalIF":0.0,"publicationDate":"2020-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49158295","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":"RIBOLOV BODORKE (Rutilus rutilus) I EUROPSKOG GRGEČA (Perca fluviatilis) POD LEDOM UZ POMOĆ MORMIŠKE (MORMYSHKA) S RIBOLOVNOM TEHNIKOM „ULOVI I PUSTI”","authors":"T. Czarkowski, A. Kapusta","doi":"10.2478/CJF-2019-0017","DOIUrl":"https://doi.org/10.2478/CJF-2019-0017","url":null,"abstract":"","PeriodicalId":38161,"journal":{"name":"Ribarstvo, Croatian Journal of Fisheries","volume":"77 1","pages":"235-242"},"PeriodicalIF":0.0,"publicationDate":"2019-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69192713","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":"AŽURIRANO STANJE IHTIOFAUNE I NJENOG KONZERVACIJSKOG STATUSA U AGHIEN LAGUNI, OBALA BJELOKOSTI","authors":"Konan Koffi Félix, Assi Sonan Romuald, Boussou Koffi Charles, Gourène Germain","doi":"10.2478/CJF-2019-0019","DOIUrl":"https://doi.org/10.2478/CJF-2019-0019","url":null,"abstract":"","PeriodicalId":38161,"journal":{"name":"Ribarstvo, Croatian Journal of Fisheries","volume":"77 1","pages":"253-262"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69192261","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":"Sublethal Cobalt Toxicity Effects on Rainbow Trout (Oncorhynchus mykiss)","authors":"Fereshteh Nasri, S. Heydarnejad, A. Nematollahi","doi":"10.2478/cjf-2019-0018","DOIUrl":"https://doi.org/10.2478/cjf-2019-0018","url":null,"abstract":"Abstract The purpose of this study was to investigate the sublethal Co toxicity on rainbow trout (Oncorhynchus mykiss). Trout were exposed to Co and selected parameters were evaluated at intervals of 1, 15 and 30 days. Fish exposed to higher levels of Co grew slower than fish exposed to lower levels of Co. Weight gain, specific growth rate (SGR) decreased linearly with the increase of cobalt in the water. The body condition factor (CF) of fish reared in water with low cobalt concentration decreased substantially but this decrease was not significant for fish exposed to higher cobalt concentration. The values of the feed conversion ratio (FCR) increased in fish exposed to higher levels of Co. Co significantly changed the activity of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) and decreased at day 30, and in both cases this decrease was more remarkable at day 15 so that the level of AST and ALT reached the control value at day 30. The alkaline phosphatase (ALP) level also showed a remarkable 15-day decline. There was a significant increase in glucose (G) concentration in both Co-exposed groups on day 15. However, serum cholesterol (Chl) was significantly reduced on day 15 and increased on day 30; there were no significant differences in both exposed Co-groups. The triglyceride (TG) level also decreased substantially. There was no regular pattern of total protein (TP) in the serum, so that no significant differences were found in the level of TP between low and high-exposed fish. In summary, this study suggests that exposure of essential trace elements such as cobalt may change growth and biochemical parameters, and that measurement of these parameters may be used in toxicological studies to determine the general health status of fish.","PeriodicalId":38161,"journal":{"name":"Ribarstvo, Croatian Journal of Fisheries","volume":"77 1","pages":"243 - 252"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44844624","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":"Cooperative Financing and the Growth of Catfish Aquaculture Value Chain in Nigeria","authors":"T. M. Gbigbi, F. Achoja","doi":"10.2478/cjf-2019-0020","DOIUrl":"https://doi.org/10.2478/cjf-2019-0020","url":null,"abstract":"Abstract Cooperative-based growth model for agricultural enterprises is gradually gaining popularity in application. This study examined the effect of cooperative financial intervention on the growth of catfish aquaculture value chain in Nigeria. Primary data collected, with well-structured questionnaire from 120 participants in aquaculture value chain, were analyzed with descriptive statistical tools, cost and return function and 4-point likert-type scale. The result shows that 32.3% and 27.3% of processors and input suppliers accessed N320,000 and N270,000, respectively. Only 18.2% of producers accessed N180,000. The result indicates that there are more catfish producers than any other operators in the value chain. There is interdependence between catfish producers and input suppliers, processors and marketers in the value chain. Furthermore, catfish processors and inputs suppliers accessed more cooperative loan because their activities were capital intensive. The relatively high amount of cooperative fund accessed by these groups translated high growth rate of 55% and 53%, respectively. The major constraints to the growth of catfish value chain were inadequate credit access and high expenditure on inputs. Operators in the catfish aquaculture value chain should be encouraged to attend workshops on management techniques to improve the efficiency of their businesses.","PeriodicalId":38161,"journal":{"name":"Ribarstvo, Croatian Journal of Fisheries","volume":"77 1","pages":"263 - 270"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46232738","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":"First Record of Harry Hotlips Plectorhinchus gibbosus (Lacepède, 1802) (Perciformes: Haemulidae) From the Iranian Coast of the Gulf of Oman","authors":"Mohammad Sadegh Alavi-Yeganeh, M. Khajavi","doi":"10.2478/cjf-2019-0021","DOIUrl":"https://doi.org/10.2478/cjf-2019-0021","url":null,"abstract":"Abstract Harry hotlips (Plectorhinchus gibbosus), belonging to the fish family Haeumulidae, is recorded for the first time off the Iranian coast of the Oman Sea, Chabahar Bay (25°18′N, 60°37′E). Identification confirmed by comparing morphological data of the collected specimen with data of reported congener species off this area.","PeriodicalId":38161,"journal":{"name":"Ribarstvo, Croatian Journal of Fisheries","volume":"77 1","pages":"271 - 274"},"PeriodicalIF":0.0,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46248384","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}
D. Mukherjee, Indranath Ghosal, M. Moniruzzaman, M. De, S. Chakraborty
{"title":"Dietary Administration of Ethanol and Methanol Extracts of Withania somnifera Root Stimulates Innate Immunity, Physiological Parameters and Growth in Nile Tilapia Oreochromis niloticus","authors":"D. Mukherjee, Indranath Ghosal, M. Moniruzzaman, M. De, S. Chakraborty","doi":"10.2478/cjf-2019-0012","DOIUrl":"https://doi.org/10.2478/cjf-2019-0012","url":null,"abstract":"Abstract Efficacy of ethanol and methanol extracts of medicinal herb Withania somnifera roots was evaluated in Nile tilapia Oreochromis niloticus on immunostimulation and growth. Withania roots were extracted with water, ethanol, methanol, methylene chloride, hexane, successive methanol. Phenol, flavonoid content and antiradical activity of all the extracts were measured. Ethanol extract showed the highest phenol, flavonoid content and antiradical activity followed by methanol extract. Subsequently, Nile tilapia (n = 126) were fed diets containing different concentrations (0.0, 0.3, 0.5 and 0.7 g kg−1 feed) of ethanol and methanol extracts of W. somnifera roots for 30 days (3 replicates). Fish fed plant extract fortified diets showed significantly better (P<0.05) immunological, haematological, biochemical and growth parameters compared to the fish fed control diet. Fish fed diet containing ethanol extract at the concentration of 0.7 g kg−1 feed showed the highest immunological (phagocytotic activity, respiratory burst activity, serum lysozyme, total protein, total immunoglobulin), haematological (total red blood cells, haemoglobin, hematocrit, total white blood cells, lymphocyte), biochemical (reduced glutathione, glutathione reductase activity) and growth (final weight, weight gain, daily weight gain, specific growth rate) parameters. The plant extract might act as potent free radical scavenger in fish tissues and have tissue protecting ability, thus increasing fish health.","PeriodicalId":38161,"journal":{"name":"Ribarstvo, Croatian Journal of Fisheries","volume":"77 1","pages":"107 - 118"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45423529","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}
M. Ćaleta, Z. Marčić, I. Buj, D. Zanella, P. Mustafić, A. Duplić, Sven Horvatić
{"title":"A Review of Extant Croatian Freshwater Fish and Lampreys","authors":"M. Ćaleta, Z. Marčić, I. Buj, D. Zanella, P. Mustafić, A. Duplić, Sven Horvatić","doi":"10.2478/cjf-2019-0016","DOIUrl":"https://doi.org/10.2478/cjf-2019-0016","url":null,"abstract":"Abstract A checklist of the freshwater fish fauna of Croatia is presented for the first time. It is based on 1360 publications of historical and recent data in the literature. According to the literature review, there were 137 fish species in 30 families and 75 genera recorded in Croatia. The checklist is systematically arranged and provides distributional data of the freshwater fish fauna as well as whether the species is endemic, introduced or translocated.","PeriodicalId":38161,"journal":{"name":"Ribarstvo, Croatian Journal of Fisheries","volume":"77 1","pages":"137 - 234"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43801253","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":"Biological Aspect of Bullet Tuna Auxis rochei (Risso, 1810) in the Makassar Strait, West Sulawesi, Indonesia","authors":"Wayan Kantun, Indra Cahyono, W. Arsana","doi":"10.2478/cjf-2019-0013","DOIUrl":"https://doi.org/10.2478/cjf-2019-0013","url":null,"abstract":"Abstract The objectives of the present study were to determine the size distribution, growth pattern, feeding habit and stomach fullness index of bullet tuna Auxis rochei in the Makassar Strait, West Sulawesi. The research was conducted for six months between March and August 2017. Sampling collection was carried out using the handline technique. A total of 2160 fish were caught. Their total length ranged from 15.8 to 28.5 cm and weight ranged from 52.3 to 366.5 g. The total length of male fish ranged from 18.5 to 28.5 cm and weight ranged from 77.5 to 366.5 g. The total length of female fish ranged from 15.8 to 27.5 cm and weight ranged from 52.3 to 328.8 g. The growth pattern of bullet tuna for both male and female fish was classified into a positive allometry (b>3); the type of food found in the fish gut consisted of crustacean (12.50% to 25.64%), chepalopods (7.32 to 34.80%) and unidentified (47.69 to 64.51%), respectively. Nonetheless, the predominant food condition was not identified and in the gut there was generally no food present. The stomach fullness index ranged from 1.13% to 7.18%, ¾ (12.11 to 15.74%), ½ (12.27 to 23.14%) and empty (59.26 to 65.74%). The length size distribution of male bullet tuna was larger than the female with a positive allometric growth pattern. However, the growth pattern of male and female bullet tuna statistically showed no difference.","PeriodicalId":38161,"journal":{"name":"Ribarstvo, Croatian Journal of Fisheries","volume":"77 1","pages":"119 - 126"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45647838","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":"Participation Rates of Freshwater Recreational Fisheries in the Counties of Croatia","authors":"T. Treer","doi":"10.2478/cjf-2019-0014","DOIUrl":"https://doi.org/10.2478/cjf-2019-0014","url":null,"abstract":"Abstract The aim of this research was to define the participation rates of freshwater anglers in Croatia, their changes over the years and their differences across the counties of Croatia. In spite of a continuous population decline ever since Croatia joined the EU, the number of anglers has slightly increased to around 1%. The counties can be divided into three groups – counties on the Adriatic coast where marine fisheries are dominant, a very urbanized City of Zagreb and the remaining inland counties. In freshwater recreational fisheries in Croatia, the tradition and availability of fishing grounds dominate the participation rate of anglers. However, there are indications of the influence of GDP values so the counties with GDP over 6,500 euros per capita expressed positive relationship to the percentage of anglers (p<0.05). On the other hand, densely populated county of the City of Zagreb confirms that urbanization and much higher GDP result in a much lower percentage of recreational fishermen.","PeriodicalId":38161,"journal":{"name":"Ribarstvo, Croatian Journal of Fisheries","volume":"77 1","pages":"127 - 132"},"PeriodicalIF":0.0,"publicationDate":"2019-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47332276","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}