Fluctuating asymmetry and organosomatic indexes in fish: the Corocoro grunt as a case study (Haemulidae)
Abstract Fluctuation asymmetries (FA) are random on the bilateral symmetry plan of paired morphological characters, and other types of symmetry, such as: for instance, translational or rotational symmetry, in response to environmental, and genetic stress. The relationship of FA with gonadossomatic (GSI), hepatosomatic (HSI), and fullness (RI) indexes and condition factor (K) for juveniles (n=8), adults (n=32), males (n=9), and females (n=26) of Corocoro grunt Orthopristis ruber were evaluated in this paper. The composite fluctuating asymmetry (CFA) was used to calculate the combined effects of FA over these four organosomatic indexes of 66 Corocoro grunt caught during 2011 in Guanabara Bay, Brazil, one of the most eutrophic coastal bays in the world. Redundancy Analysis (RDA) confirmed a significant relationship between CFA and the physiological descriptors (HSI, RI, K), but without clear differences among juveniles, adults, and sexes. Our results support the potential of CFA to be used as a proxy of environmental effects over reef-associated fish species in a tropical bay, but the relationship between CFA and physiological descriptors is complex, and further studies, such as experimental trials, are needed.
Main Authors: | SEIXAS,LUANA B., SANTOS,LUCIANO N. DOS, SANTOS,ALEJANDRA FILIPPO G.N. DOS |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Academia Brasileira de Ciências
2021
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652021000801007 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Embryonic development of Peruvian grunt Anisotremus scapularis (Perciformes: Haemulidae)
by: Montes,Melissa, et al.
Published: (2019) -
Synopsis of biological data on the grunts Haemulon aurolineatum and H. plumieri (Pisces: Haemulidae)
by: Darcy, G.H.
Published: (Feb ) -
Synopsis of biological data on the grunts Haemulon aurolineatum and H. plumieri (Pisces: Haemulidae)
by: Darcy
Published: (1983) -
Inducción hormonal al desove y descripción larval del corocoro Orthopristis ruber Cuvier (Pisces: Haemulidae)
by: Mata,Ernesto, et al.
Published: (2004) -
Age and growth of the bastard grunt (Pomadasys incisus: Haemulidae) inhabiting the Canarian archipelago, Northwest Africa
by: Pajuelo, Jose G., et al.
Published: (2003)