Arid
DOI10.1590/1678-4324-2016160076
Diel Variations and Ecological Aspects in Fish Assemblages of a Sandy Beach in the Semi-Arid Region of Northeast Brazil.
Fernandes Medeiros Dantas, Natlia Carla1; Beserra Silva Junior, Carlos Antonio2; Lippi, Daniel Lino3; Feitosa, Caroline Vieira1
通讯作者Feitosa, Caroline Vieira
来源期刊BRAZILIAN ARCHIVES OF BIOLOGY AND TECHNOLOGY
ISSN1516-8913
EISSN1678-4324
出版年2016
卷号59
英文摘要

For the demersal fish that inhabit sandy beaches, the variation between day and night periods represents a determinant factor in their behavior, especially for species that live in shallow waters. This research aims at determining whether there are differences in the fish assemblage structure of the sandy beach of Sao Cristovao, RN, Brazil, between diurnal and nocturnal periods. Samplings were carried out in 2011, during spring high tide period, with an otter trawl net. Dissimilarity between diurnal and nocturnal fish assemblages was confirmed by PERMANOVA results. No statistical differences were observed for richness and diversity of fish assemblage between day and night periods. The first and third order carnivores were the significantly more representative trophic categories during night and day periods, respectively. Only four species presented significant differences regarding total length of fish between the periods. The demersal fish assemblage of Sao Cristovao beach presented variations in the density of individuals between day and night periods. Dissimilarities were also recorded in trophic categories and in total lengths of individuals; however this occurred as a result of the high density of some species. The low depth of the beach may prevent the establishment of larger size adult fish, thus becoming a favourable environment for juveniles and small-sized fish species.


英文关键词demersal ichthyofauna density diversity total length day night
类型Article
语种英语
国家Brazil
收录类别SCI-E
WOS记录号WOS:000390600000003
WOS关键词SOUTHERN BRAZIL ; TIDAL VARIATION ; BAY ; COMMUNITY ; DYNAMICS ; ESTUARY ; KUWAIT
WOS类目Biology
WOS研究方向Life Sciences & Biomedicine - Other Topics
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/191904
作者单位1.Univ Fed Ceara, Fortaleza, Ceara, Brazil;
2.Univ Fed Rural Pernambuco, Recife, PE, Brazil;
3.Univ Fedral Pernambuco, Dept Oceanog, Recife, PE, Brazil
推荐引用方式
GB/T 7714
Fernandes Medeiros Dantas, Natlia Carla,Beserra Silva Junior, Carlos Antonio,Lippi, Daniel Lino,et al. Diel Variations and Ecological Aspects in Fish Assemblages of a Sandy Beach in the Semi-Arid Region of Northeast Brazil.[J],2016,59.
APA Fernandes Medeiros Dantas, Natlia Carla,Beserra Silva Junior, Carlos Antonio,Lippi, Daniel Lino,&Feitosa, Caroline Vieira.(2016).Diel Variations and Ecological Aspects in Fish Assemblages of a Sandy Beach in the Semi-Arid Region of Northeast Brazil..BRAZILIAN ARCHIVES OF BIOLOGY AND TECHNOLOGY,59.
MLA Fernandes Medeiros Dantas, Natlia Carla,et al."Diel Variations and Ecological Aspects in Fish Assemblages of a Sandy Beach in the Semi-Arid Region of Northeast Brazil.".BRAZILIAN ARCHIVES OF BIOLOGY AND TECHNOLOGY 59(2016).
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