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A narrative review of reproduction in freshwater fishes of semiarid Northeastern Brazil 巴西东北部半干旱地区淡水鱼繁殖研究述评

Journal of Aquaculture and Marine Biology Pub Date : 1900-01-01 DOI: 10.15406/jamb.2022.11.00339

S. Chellappa, Thiago Chellappa, W. S. Nascimento

{"title":"A narrative review of reproduction in freshwater fishes of semiarid Northeastern Brazil","authors":"S. Chellappa, Thiago Chellappa, W. S. Nascimento","doi":"10.15406/jamb.2022.11.00339","DOIUrl":"https://doi.org/10.15406/jamb.2022.11.00339","url":null,"abstract":"Stressors of various nature impact fish reproduction from the physiological to the behavioural levels. Seasonal changes such as drought and pluvial (rainfall) variations have a profound effect on reproduction of semiarid tropical fishes. In the semiarid tropical region of Brazil the factors that influence fish reproduction are changes in rainfall regimes and drought. These environmental changes can either stimulate or inhibit reproduction in fishes. Information on these fundamental variables on reproduction can help management and conservation of tropical fishes. Information on fish reproduction also is an important factor for understanding the freshwater ecosystems of the semiarid region. This paper is a narrative review on the effects caused by rainfall and drought on reproduction of some cichlids and an annual fish from the semiarid region of Brazil. During the breeding period cichlid fishes demonstrate aggressive behavior and dominant fishes often get priority of access to territories and mates. On the other hand, the annual fishes have rapid growth and gonadal development to complete their life cycle within a short span of time. Fishes which are subjected to varying pluvial pressures have characteristic life history patterns.","PeriodicalId":155705,"journal":{"name":"Journal of Aquaculture and Marine Biology","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115942719","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 on the seaweed resources of Myanmar 缅甸海藻资源综述

Journal of Aquaculture and Marine Biology Pub Date : 1900-01-01 DOI: 10.15406/jamb.2021.10.00317

U. Soe-Htun, Soe Pa Pa Kyaw, Mya Kyawt Wai, J. San, SeinMoh Moh Khaing, Chaw Thiri Pyae Phyo Aye

{"title":"A review on the seaweed resources of Myanmar","authors":"U. Soe-Htun, Soe Pa Pa Kyaw, Mya Kyawt Wai, J. San, SeinMoh Moh Khaing, Chaw Thiri Pyae Phyo Aye","doi":"10.15406/jamb.2021.10.00317","DOIUrl":"https://doi.org/10.15406/jamb.2021.10.00317","url":null,"abstract":"A total of 261species of marine benthic algae under 121genera,comprising 72 taxa belonging to 26 genera of Chlorophyta, 45 taxa belonging to 18 genera of Phaeophyta and 144 taxa belonging to 77 genera of Rhodophyta growing along the Tanintharyi Coastal Zone, Deltaic Coastal Zone and Rakhine Coastal Zone, were recorded. In general, diversity ratios of seaweeds occur in 3 Coastal Zones is 3:1:4 between the Tanintharyi Coastal Zone (146 taxa), Deltaic Coastal Zone (53 taxa) and Rakhine Coastal Zone (224 taxa).Among these, 89 species of marine benthic algae, including 25 taxa of green, 9 taxa of brown and 55 taxa of red algae, were newly recorded from Myanmar waters. The latitudinal distribution of marine benthic algae along the Myanmar Coastal Zones reveals 25 species of marine benthic algae which uniquely occur in low lattitute in the Tanintharyi Coastal Zone and 111 species which exclusively predominate in high lattitutein the Rakhine Coastal Zone. Monostroma, Ulva, Caulerpa and Codium of Chlorophyta, Dictyota, Spatoglossum, Hormophysa, Turbinaria and Sargassum of Phaeophyta and Phycocalidia, Dermonema, Gelidiella, Halymenia, Solieria, Hypnea, Gracilaria,Gracilariopsis, Hydopuntia, Catenella and Acanthophora of Rhodophyta could be considered as of dependable natural resources of Myanmar to produce the sea-vegetables and phycocolloids. Mariculture of some economically important marine red algae such as Gracilaria spp., Hydopuntia spp., Catenella spp. And Kappaphycus alvarezii was described. Current status and prospects of phycocolloid industries producing alginate, agar-agar and carrageenansfrom raw materials of seaweeds of Myanmar were discussed. Checklist, distribution and conservation of marine benthic algae were briefly presented.","PeriodicalId":155705,"journal":{"name":"Journal of Aquaculture and Marine Biology","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130164249","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

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