Marine and Fishery Sciences (MAFIS)最新文献_第7页

Illustrated checklist of the Anguilliformes (Pisces, Teleostei) of Mayotte (West Indian Ocean) with 14 new records 马约特岛(西印度洋)鳗鲡目(双鱼座、直骨鱼)的图解清单及14项新记录

Marine and Fishery Sciences (MAFIS) Pub Date : 2021-10-06 DOI: 10.47193/mafis.3512022010103

R. Eudeline

引用次数: 1

Citizen Science 公民科学

Marine and Fishery Sciences (MAFIS) Pub Date : 2021-10-06 DOI: 10.47193/mafis.3512022010105

Editorial Committee

引用次数: 0

Evaluación de la densidad de cultivo en el crecimiento y supervivencia de larvas de chita Anisotremus scapularis (TSCHUDI, 1846) en laboratorio 实验室培养密度对肩胛骨猎豹(TSCHUDI, 1846)幼虫生长和存活的评价

Marine and Fishery Sciences (MAFIS) Pub Date : 2021-08-27 DOI: 10.47193/mafis.3512022010102

Angélica Castro Fuentes, Noemí Cota, Melissa Montes, Lili Carrera

{"title":"Evaluación de la densidad de cultivo en el crecimiento y supervivencia de larvas de chita Anisotremus scapularis (TSCHUDI, 1846) en laboratorio","authors":"Angélica Castro Fuentes, Noemí Cota, Melissa Montes, Lili Carrera","doi":"10.47193/mafis.3512022010102","DOIUrl":"https://doi.org/10.47193/mafis.3512022010102","url":null,"abstract":"La larvicultura de peces marinos en condiciones de laboratorio está influenciada por factores como la densidad de cultivo, la nutrición, la calidad del agua, que afectan directamente el crecimiento y la supervivencia. Este estudio tuvo como objetivo determinar el efecto de la densidad de cultivo sobre el crecimiento, la supervivencia y el factor de condición de las larvas de chita Anisotremus scapularis, en condiciones de laboratorio. Las larvas se obtuvieron mediante el desove natural de reproductores mantenidos en condiciones controladas. Se evaluaron cuatro densidades de cultivo 5, 10, 15 y 20 larvas L-1. La larvicultura se llevó a cabo durante 60 días a 19 °C en un sistema estático compuesto por 12 tanques con una capacidad de 100 L cada uno. Los resultados mostraron diferencias significativas en la tasa de crecimiento específico (% g día-1), el factor de condición y la supervivencia. La densidad de población de 10 larvas L-1 obtuvo los mejores resultados 8,46 ± 0,08% g día-1 y 3,38 ± 0,31% cm día-1, supervivencia 12,54 ± 0,47% y K de 2,23 ± 0,31 durante el experimento, por lo cual se sugiere como densidad de cultivo inicial.","PeriodicalId":112376,"journal":{"name":"Marine and Fishery Sciences (MAFIS)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130824226","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

Linking long-term changes of the zooplankton community to the environmental variability at the EPEA Station (Southwestern Atlantic Ocean) 西南大西洋EPEA站浮游动物群落的长期变化与环境变率的关系

Marine and Fishery Sciences (MAFIS) Pub Date : 2021-07-01 DOI: 10.47193/MAFIS.3422021010610

M. Vinas, G. Cepeda, M. L. Clara

{"title":"Linking long-term changes of the zooplankton community to the environmental variability at the EPEA Station (Southwestern Atlantic Ocean)","authors":"M. Vinas, G. Cepeda, M. L. Clara","doi":"10.47193/MAFIS.3422021010610","DOIUrl":"https://doi.org/10.47193/MAFIS.3422021010610","url":null,"abstract":"A significant sea surface temperature increase has been reported for the Southwestern Atlantic Ocean between 20° S-50° S over the last decades. Zooplankton organisms are highly sensitive to temperature rise. They play a very important role in marine ecosystems by providing the main pathway of energy transfer from primary producers to consumers. Seasonal and interannual (2000-2017) variability of metazooplankton in relation to environmental changes, particularly temperature, were analyzed at the EPEA station (38° 28′ S-57° 41′ W). Copepods, appendicularians, cladocerans, chaetognaths, and lamellibranch larvae were identified and quantified. Temperature exhibited a positive interannual trend during the series, whereas the Simpson parameter showed a decreasing tendency and salinity remained almost constant. Adults, copepodites, and nauplii of small copepods belonging to Oithonidae (mostly Oithona nana) and Paracalanidae-Clausocalanidae families dominated the metazooplankton community during the study period. Three groups of taxa with different seasonal patterns of variability were clearly identified. Members of Oithonidae exhibited positive interannual trends, whereas lamellibranch larvae and Calanidae showed negative interannual trends. A direct influence of temperature anomaly on these changes is suggested as well as possible indirect effects of this anomaly upon zooplankton through different phytoplankton fractions. Under the current scenario of climate change, the maintenance of this time-series becomes crucial in order to evaluate the eventual transfer of the environmental variability to the local food webs through planktonic organisms.","PeriodicalId":112376,"journal":{"name":"Marine and Fishery Sciences (MAFIS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115218587","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

Movement of the bull shark (Carcharhinus leucas) in the upper Mississippi River Basin, North America 北美密西西比河流域上游牛鲨(Carcharhinus leucas)的运动

Marine and Fishery Sciences (MAFIS) Pub Date : 2021-07-01 DOI: 10.47193/MAFIS.3422021010607

R. Shell, Nicholas Gardner

引用次数: 1

Unusual record of a multiple predation of the Patagonian seahorse Hippocampus patagonicus by the Narrownose smooth-hound Mustelus schmitti in Argentine coastal waters 阿根廷沿海水域，窄鼻猎犬Mustelus schmitti多次捕食巴塔哥尼亚海马海马的不寻常记录

Marine and Fishery Sciences (MAFIS) Pub Date : 2021-07-01 DOI: 10.47193/MAFIS.3422021010604

M. Belleggia, M. G. Pujol, M. Estalles, D. Figueroa, D. Luzzatto

引用次数: 1

Early stages of anchovy: abundance, variability and larval condition at the fixed coastal station EPEA between 2000-2017 早期阶段的凤尾鱼:2000-2017年固定海岸站EPEA的丰度、变异性和幼虫状况

Marine and Fishery Sciences (MAFIS) Pub Date : 2021-07-01 DOI: 10.47193/MAFIS.3422021010601

E. Leonarduzzi, Marina Do Souto, M. Diaz

{"title":"Early stages of anchovy: abundance, variability and larval condition at the fixed coastal station EPEA between 2000-2017","authors":"E. Leonarduzzi, Marina Do Souto, M. Diaz","doi":"10.47193/MAFIS.3422021010601","DOIUrl":"https://doi.org/10.47193/MAFIS.3422021010601","url":null,"abstract":"Densities of eggs and larvae of Engraulis anchoita and the nutritional condition of larvae were analyzed in the fixed sampling station (EPEA) in the period 2000-2017. These variables were analyzed seasonally and trends over time were determined. Ichthyoplankton samples were collected by oblique trawls using Bongo nets with 300 μm of pore mesh and fixed with formaldehyde 5% in seawater. Six morphometric variables were measured to estimate the nutritional condition of larvae. The developmental stage of each specimen was also determined. The highest mean value of egg density was detected in the October-December period, with a secondary mode in August, followed by one in March. Larval density presented a mode in October. Autumn and spring were the most favorable seasons for larval condition while winter proved to be the least favorable one. An increase in food availability during autumn and spring due to primary and secondary production peaks could explain the high nutritional condition and growth values observed in these seasons at the EPEA. No changes in trends of variables over time were detected. The integrated study of density and nutritional condition of E. anchoita larvae allows the determination of favorable breeding periods for the species, while the continuation of the long term study will allow evaluating possible effects of climate change in the early life stages of this species.","PeriodicalId":112376,"journal":{"name":"Marine and Fishery Sciences (MAFIS)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114142385","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: 2

An assessment of discarded catches from the bottom pair trawling fishery in southern Brazil 对巴西南部海底拖网渔业丢弃渔获物的评估

Marine and Fishery Sciences (MAFIS) Pub Date : 2021-07-01 DOI: 10.47193/MAFIS.3422021010609

L. Cardoso, D. Monteiro, M. Haimovici

{"title":"An assessment of discarded catches from the bottom pair trawling fishery in southern Brazil","authors":"L. Cardoso, D. Monteiro, M. Haimovici","doi":"10.47193/MAFIS.3422021010609","DOIUrl":"https://doi.org/10.47193/MAFIS.3422021010609","url":null,"abstract":"Onboard discards of a fraction of the catch can be considered one of the main issues related to bottom trawling fisheries. The magnitude and composition of the discards still need to be better understood. We assessed the industrial bottom pair trawling fishery’s discards from southern Brazil by monitoring 159 fishing hauls during four fishing trips. From the 318.9 mt captured, 77.7 t were discarded (24%). The discards per haul were highly variable, on average 488.9 kg (95% CI: 433.6-544.2 kg) and 31% (95% CI 28-34%) of the total. The rejected catch comprised 64 species, 37 teleosts (78.4% in weight) and 13 elasmobranchs (21.3% in weight), besides crustaceans, mollusks, cnidarians, and echinoderms. The three most commercially important species in the region (Umbrina canosai, Cynoscion guatucupa, and Micropogonias furnieri) accounted for 13% of the discarded biomass, and most of them were individuals under 20-25 cm. The discard rates and species composition did not change over the last 40 years; however, the discarded biomass for both teleost fishes and elasmobranchs decreased sharply, reflecting the abundance decrease of these groups in the region. This work highlights the need for management measures to reduce the bottom pair trawling fishery discards in southern Brazil.","PeriodicalId":112376,"journal":{"name":"Marine and Fishery Sciences (MAFIS)","volume":"9 36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124110043","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: 7

Ensilados químicos y biológicos. Una alternativa de aprovechamiento integral y sustentable de los residuos pesqueros en la Argentina 化学和生物青贮。阿根廷渔业废弃物综合和可持续利用的替代方案

Marine and Fishery Sciences (MAFIS) Pub Date : 2021-07-01 DOI: 10.47193/MAFIS.3422021010603

Adriana L. Fernández Herrero

引用次数: 1

Evolución temporal de la diversidad, abundancia y estructura del ensamble de peces costeros en el área de “El Rincón” (39° S-41° 30′ S), Argentina 阿根廷“el rincon”地区(39°S-41°30 ' S)沿海鱼类多样性、丰度和组合结构的时间演变

Marine and Fishery Sciences (MAFIS) Pub Date : 2021-07-01 DOI: 10.47193/MAFIS.3422021010602

Daniela Alemany, M. Rico, Nerina Á. Lagos, P. Martos, Manuela Mendiolar, C. Carozza

{"title":"Evolución temporal de la diversidad, abundancia y estructura del ensamble de peces costeros en el área de “El Rincón” (39° S-41° 30′ S), Argentina","authors":"Daniela Alemany, M. Rico, Nerina Á. Lagos, P. Martos, Manuela Mendiolar, C. Carozza","doi":"10.47193/MAFIS.3422021010602","DOIUrl":"https://doi.org/10.47193/MAFIS.3422021010602","url":null,"abstract":"El área de “El Rincón” (39° S-41° 30′ S) es un sistema de alta complejidad oceanográfica, de relevancia como área reproductiva y cría de numerosas especies, sujeta a diversas medidas de manejo pesquero. El objetivo del trabajo fue evaluar la evolución temporal del ensamble de peces costeros en el área. Se analizaron 591 lances de pesca y estaciones oceanográficas durante el período 1994-2012 en función de la densidad de peces, la diversidad y la estructura del ensamble, evaluando diferencias interanuales y su relación con variables oceanográficas. Se registraron 70 especies de peces costeros, once de ellas responsables de las diferencias en los ensambles entre años. Los resultados más destacables fueron la tendencia decreciente de la densidad de peces, así como la relación positiva entre la densidad y la temperatura de fondo. El presente trabajo reviste importancia como línea de base de la evolución del ensamble de peces costeros, junto a una exhaustiva caracterización de la dinámica biológica y física de la región en un período de casi dos décadas. Los resultados obtenidos son de importancia para la gestión de recursos costeros, futuros estudios enmarcados en el contexto del cambio climático global y evaluación del impacto antrópico en este ecosistema costero del Atlántico Sudoccidental que brinda numerosos servicios ecosistémicos.","PeriodicalId":112376,"journal":{"name":"Marine and Fishery Sciences (MAFIS)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131981462","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