Boletim do Instituto de Pesca最新文献_第10页

DIFFERENT DENSITIES OF COMMON SNOOK REARED IN MARINE CAGES IN SOUTHERN BRAZIL 巴西南部海洋网箱中饲养的普通鹬的不同密度

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2021-01-01 DOI: 10.20950/1678-2305/bip.2021.47.e643

Fabiano Müller Silva, B. C. Silva, V. Cerqueira

引用次数: 0

LENGTH-WEIGHT RELATIONSHIP AND RELATIVE CONDITION FACTOR OF 31 SMALL-SIZED FISHES OF THE PARANAPANEMA RIVER BASIN paranapanema河流域31种小型鱼类的长权关系及相对条件因子

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2021-01-01 DOI: 10.20950/1678-2305/bip.2021.47.e621

J. Ferraz, D. Garcia, A. C. R. Casimiro, I. Geller, F. S. Almeida, M. Orsi

{"title":"LENGTH-WEIGHT RELATIONSHIP AND RELATIVE CONDITION FACTOR OF 31 SMALL-SIZED FISHES OF THE PARANAPANEMA RIVER BASIN","authors":"J. Ferraz, D. Garcia, A. C. R. Casimiro, I. Geller, F. S. Almeida, M. Orsi","doi":"10.20950/1678-2305/bip.2021.47.e621","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2021.47.e621","url":null,"abstract":"Studies on length-weight relationships are of great importance in fishery assessments. These studies are substantial to evaluate fish population dynamics, and in communion with the relative condition factor, could provide an estimation of potential acting environmental conditions. In this paper, we evaluated the length weight relationship and relative condition factor of small sized fish species. Fish were sampled quarterly between the years 2012-2013 and 2018-2020 in lagoons and tributaries of Rosana and Taquaruçu reservoirs, located at the lower Paranapanema River basin, Brazil. The standard length (SL) in millimeters and weight (W) in grams were measured, and the length-weight relationship was calculated using linear regression analysis (W = log (a) + b log (SL)). After, the relative condition factor (Kn) was calculated from the expression We = a.SLb. Thus, the length-weight relationships of 31 species were calculated in each environment considered, giving rise to 74 population allometric coefficients (b) and relative condition factors (Kn). As result, 24 b coefficients were concentrated between 2.5 and 3.5 and seven were out of the confidence interval, while the 74 Kn values demonstrated close to the central mean and not statistical different. Our results are relevant to the conservation of fish fauna, improving knowledge regarding small-sized fish and those living environment.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88488950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

TRAFFICKING OF ORNAMENTAL FISH IN THE BRAZILIAN AMAZON 巴西亚马逊地区观赏鱼的走私

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2021-01-01 DOI: 10.20950/1678-2305/bip.2021.47.e639

H. Beltrão, E. S. Magalhães, Zehev Schwartz Benzaken, R. Sousa

{"title":"TRAFFICKING OF ORNAMENTAL FISH IN THE BRAZILIAN AMAZON","authors":"H. Beltrão, E. S. Magalhães, Zehev Schwartz Benzaken, R. Sousa","doi":"10.20950/1678-2305/bip.2021.47.e639","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2021.47.e639","url":null,"abstract":"The trafficking of ornamental fish is growing on a yearly basis in the Brazilian Amazon. This represents a serious threat to the biodiversity of the region. The objective of this research was to evaluate the trafficking of ornamental fish in the Brazilian Amazon using data from the seizures by the Federal Police and Brazilian Institute of Environment and Renewable Natural Resources - IBAMA. To assess and quantify this illegal trade, we gathered data relating to the period between January 2003 and January 2020. Information was obtained from IBAMA - Amazon - regional superintendence; National Amazon Research Institute - INPA regarding smuggled species that have been recovered and placed in its fish collection. The results show that in 98 seizures made by IBAMA, a total of 170,849 specimens of at least 73 species of 10 families, and 5 orders were recovered. Most of the illegally trafficked species are from the Loricariidae family (31 species, 8.47%). Hypancistrus zebra (Loricariidae), Potamotrygon jabuti, Potamotrygon leopoldi (Potamotrygonidae), Osteoglossum bicirrhosum and Osteoglossum ferreirai (Osteoglossidae) are the most targeted by the traffickers, due to their high value. At least 12 species are undescribed new species and were registered and placed in INPA’s fish collection. The fish followed different routes to reach the border that Brazil, Colombia, and Peru share. We conclude that in order to fight this illegal trade, tougher laws against smugglers, agreements with neighboring countries to combat trafficking, formal environmental education programs for riverine populations, and further scientific studies of smuggled species are necessary.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78574211","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

THE INFLUENCE OF THE COASTAL CURRENT ON THE ESTIMATION OF RELATIVE ABUNDANCE INDICES IN SMALL-SCALE SHRIMP FISHERY 沿海洋流对小规模对虾渔业相对丰度指数估算的影响

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2021-01-01 DOI: 10.20950/1678-2305/bip.2021.47.e665

P. V. N. Araújo, A. B. Moraes, F. Lucena Frédou, F. A. Freire

引用次数: 0

SEX REVERSAL IN SIAMESE FIGHTING FISH LARVAE BY THERMAL MANAGEMENT 热管理对暹罗斗鱼幼鱼性别逆转的影响

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2021-01-01 DOI: 10.20950/1678-2305/bip.2021.47.e676

Igor de Fiuza França, G. M. Heluy, É. Schultz, Wilson de Oliveira Vianna, M. M. Pereira, L. R. V. Ramos

{"title":"SEX REVERSAL IN SIAMESE FIGHTING FISH LARVAE BY THERMAL MANAGEMENT","authors":"Igor de Fiuza França, G. M. Heluy, É. Schultz, Wilson de Oliveira Vianna, M. M. Pereira, L. R. V. Ramos","doi":"10.20950/1678-2305/bip.2021.47.e676","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2021.47.e676","url":null,"abstract":"The present study evaluated the influence of thermal management during the larviculture of Betta splendens on survival and sex ratio, aiming to increase the proportion of males. Newly hatched larvae were subjected to different thermal regimes, namely, T25, T28, T30 and T33 (25, 28, 30 and 33ºC, respectively). The experiment was laid out in a completely randomized design, with 4 treatments and 10 repetitions. Thermal treatment was maintained until 15 days post-hatch (DPH). Mortality was determined at the end of the thermal regime and again at 45 DPH. At the end of the experiment, the number of males and females obtained in the different thermal treatments was counted to analyze the obtained sex ratio. There was a significant effect on mortality as a function of temperature only at 15 DPH (p <0.001), with the lowest values recorded in treatments T25, T28 and T30. In terms of sex ratio, up to 65% of males were obtained in treatment T33 (p = 0.037). In conclusion, thermal management during the larval period can be a strategy to increase the proportion of males, but the increase in mortality due to the rise in temperature should be considered.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83468792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

ANALYSIS OF THE TECHNICAL EFFICIENCY OF EUROPEAN SEA BASS FARMS IN TURKEY: A STOCHASTIC FRONTIER PRODUCTION FUNCTION APPROACH 土耳其欧洲黑鲈养殖场技术效率分析:随机前沿生产函数方法

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2021-01-01 DOI: 10.20950/1678-2305/bip.2021.47.e642

M Beheşti Aydoğan, O. Uysal

{"title":"ANALYSIS OF THE TECHNICAL EFFICIENCY OF EUROPEAN SEA BASS FARMS IN TURKEY: A STOCHASTIC FRONTIER PRODUCTION FUNCTION APPROACH","authors":"M Beheşti Aydoğan, O. Uysal","doi":"10.20950/1678-2305/bip.2021.47.e642","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2021.47.e642","url":null,"abstract":"This study’s main objective was to estimate sea bass farms’ technical efficiency and determine the factors affecting production inefficiency using the stochastic frontier approach. The data were collected using questionnaires from 71 farms in 2017. The total sea bass production cost was calculated 5.35 $ kg-1, income 5.65 $ kg-1, gross profit 0.30 $ kg-1. The proportion of variable costs (84.25%) in total costs was higher than the fixed costs (15.75%). The feed cost (57.56%) was the influential primary variable on the total costs, and the benefit-cost ratio was 1.06. The results indicated that seabass farms’ technical efficiency varied between 0.67 to 1.00, and the average was 0.82. The efficiency scores meant the farms could achieve the same production amount by reducing inputs by 18%. One per cent increase in resale value, feed amount, and fingerling amount, increase sea bass production by 0.4%, 0.4%, and 0.2%, respectively. Fish loss rates and subsidies were influential on inefficiency. It would be beneficial to minimize risk factors such as fish loss rates and carry out political and educational activities to improve farms’ infrastructure in breeding and marketing. As a result, policymakers should also include the effective use of production factors in the design of aquaculture subsidy policies.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73772116","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MULTIDISCIPLINARY APPROACH TO IDENTIFICATION OF FISHERY SYSTEMS IN AMAZONIAN RESERVOIR: CASE STUDY IN TUCURUÍ DAM 多学科方法识别渔业系统在亚马逊水库:个案研究tucuruÍ水坝

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2021-01-01 DOI: 10.20950/1678-2305/bip.2021.47.e604

Severiano Pereira BRAZ NETO, Antônio Marcos de Melo Xavier, C. R. DE MESQUITA, Laudiceia de ABREU COSTA, Flávia Roseira dos Reis, I. Cintra, T. Giarrizzo, B. Bentes

引用次数: 0

FOOD ACCEPTANCE IN DIFFERENT LARVAL STAGES OF Macrobrachium carcinus 癌沼虾不同幼虫期对食物的接受

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2021-01-01 DOI: 10.20950/1678-2305/bip.2021.47.e666

Cassia Barbosa Constantinidis, M. C. D. Araujo

{"title":"FOOD ACCEPTANCE IN DIFFERENT LARVAL STAGES OF Macrobrachium carcinus","authors":"Cassia Barbosa Constantinidis, M. C. D. Araujo","doi":"10.20950/1678-2305/bip.2021.47.e666","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2021.47.e666","url":null,"abstract":"Food acceptance in different larval stages of Macrobrachium carcinus was evaluated by investigating the stage at which the ingestion of inert moist diet food begins and by the incidence of Artemia nauplii and inert moist diet in the digestive tract throughout development. Two experiments were carried out: in the first study, the acceptance of the inert diet was evaluated in 60 larvae of each stage (I to XII) fed ad libitum after two hours of fasting. The inert diet was 100% accepted at zoea stage V. In the second study, newly hatched larva was then kept in larval tanks and fed with Artemia nauplii and inert moist diet simultaneously. Fifteen minutes after feeding, 50 specimens of each larval stage were examined and evaluated for the ingestion of these foods. Larvae at stage I did not feed, while larvae at stage II consumed both live and inert food. From the stage of zoea IX, the exclusive consumption of Artemia nauplii was not verified. These data indicate that feeding M. carcinus in larviculture can be initiated at stage II with inert moist diet and Artemia nauplii, and an exclusive supply of inert moist diet from stage IX can be recommended.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78708842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

FISHING IN THE LARGEST PERENE HYPERSALINE LAGOON IN SOUTH AMERICA, WITH NOTES ON CURRENT REGULATIONS 在南美洲最大的二烯高盐泻湖捕鱼，附有现行规定的说明

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2021-01-01 DOI: 10.20950/1678-2305/bip.2021.47.e658

Márcio Luís Chagas Macedo, Sérgio Ricardo Santos, Maurício Düppré de Abreu, Hugo Zecchim, Karina A. Keunecke, Geraldo Timoteo, M. Vianna

{"title":"FISHING IN THE LARGEST PERENE HYPERSALINE LAGOON IN SOUTH AMERICA, WITH NOTES ON CURRENT REGULATIONS","authors":"Márcio Luís Chagas Macedo, Sérgio Ricardo Santos, Maurício Düppré de Abreu, Hugo Zecchim, Karina A. Keunecke, Geraldo Timoteo, M. Vianna","doi":"10.20950/1678-2305/bip.2021.47.e658","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2021.47.e658","url":null,"abstract":"Araruama Lagoon (Rio de Janeiro) is the largest hypersaline lagoon in South America. The aim of this study was to survey fishing landings, capture areas and production at this lagoon, in addition to analyzing data from the Pescarte Census. Fishing landings were monitored daily by community agents from March to August/2009, through the Petrobras Mosaico Program. Thirteen landing points were identified in five municipalities, totaling 8,096 recorded landings, and accumulating 469.1 tonnes. São Pedro da Aldeia (39.6%), Arraial do Cabo (27.7%) and areas in the central region (37.6%) and the south coast (29.1%) of the lagoon presented the highest landings and catch volumes. Twelve species were identified, mainly Pogonias courbina (48.9%) and Penaeus spp (33.8%), and gillnets were the most important fishing gear. Very few studies have addressed fishing at Araruama Lagoon, leading to current planning measures supported by little data. We advocate a participatory review of current regulations, to better address gillnet fishing and the capture of different fish species. This study is the result of research financed by the Pescarte Environmental Education Project, a mitigation measure required by the Federal Environmental Licensing, conducted by IBAMA.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89728042","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

PROTEIN HYDROLYSATE OF POULTRY BY-PRODUCT AND SWINE LIVER IN THE DIET OF PACIFIC WHITE SHRIMP 太平洋白虾日粮中家禽副产物和猪肝的水解蛋白

IF 0.4 4区农林科学

Boletim do Instituto de Pesca Pub Date : 2021-01-01 DOI: 10.20950/1678-2305/bip.2021.47.e657

Mariana Soares, P. Gonçalves, D. D. Schleder, Mariana Delgadillo-Díaz, M. Gullian-Klanian, F. N. Vieira

{"title":"PROTEIN HYDROLYSATE OF POULTRY BY-PRODUCT AND SWINE LIVER IN THE DIET OF PACIFIC WHITE SHRIMP","authors":"Mariana Soares, P. Gonçalves, D. D. Schleder, Mariana Delgadillo-Díaz, M. Gullian-Klanian, F. N. Vieira","doi":"10.20950/1678-2305/bip.2021.47.e657","DOIUrl":"https://doi.org/10.20950/1678-2305/bip.2021.47.e657","url":null,"abstract":"This study aimed to evaluate the use of protein hydrolysate of poultry by-product and swine liver in the diet of Litopenaeus vannamei and its effect on the intestinal microbiota and on the enzymatic activity of the hepatopancreas. Shrimp (10.94 ± 0.90 g) were fed with diets containing 0%, 25%, 50%, 75% and 100% of replacement of salmon by-product meal by protein hydrolysate, in triplicate. The hepatopancreas enzymatic activity and composition of intestinal microbiota was studied. It was observed that the protein hydrolysate in the diet changed the enzymatic activity of the shrimp when compared to the control group (p < 0.05). Amylase activity increases directly with the percent of protein replacement in the diet. Metagenomic analysis revealed change in the gut biome of the shrimps. The increasing levels of protein replacement provided greater richness in the 75% and 100% treatments, were mainly related to changes in the abundances in the families Rhodobacteraceae and Flavobacteriaceae. A reduction in the abundance of the Vibrionaceae family was observed with the inclusion of protein hydrolysate in the diet. These results indicate that the protein hydrolysate demonstrated beneficial changes when added at concentrations of 25% in the diet of L. vannamei.","PeriodicalId":9062,"journal":{"name":"Boletim do Instituto de Pesca","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90193006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0