Evidence for spawning aggregations of the endangered Atlantic goliath grouper Epinephelus itajara in southern Brazil

被引：28

作者：

Bueno, L. S. ^{[1
,2
,3
]}

Bertoncini, A. A. ^{[3
,4
]}

Koenig, C. C. ^{[5
]}

Coleman, F. C. ^{[5
]}

Freitas, M. O. ^{[3
,6
]}

Leite, J. R. ^{[3
,6
]}

De Souza, T. F. ^{[2
]}

Hostim-Silva, M. ^{[3
,7
]}

机构：

[1] Univ Fed Espirito, Programa Posgrad Oceanog Ambiental, Santo Base Oceanog UFES, 565 Rodovia ES 010,Km 16, BR-29199970 Aracruz, ES, Brazil

[2] Inst COMAR Conservacao Marinha Brasil, 104 Helena Degelmann St, BR-89218580 Joinville, SC, Brazil

[3] Inst Meros Brasil, 67 Benjamin Constant St, BR-80060020 Curitiba, Parana, Brazil

[4] Univ Fed Estado Rio de Janeiro UNIRIO, Lab Ictiol Teor & Aplicada LICTA, 296 Pasteur Av, BR-22290240 Urca, RJ, Brazil

[5] Florida State Univ, Coastal & Marine Lab, 3618 Coastal Highway, St Teresa, FL 32358 USA

[6] Rede Abrolhos, Jardim Bot St 920, BR-22460000 Rio De Janeiro, RJ, Brazil

[7] Santo Univ Fed Espirito Santo, Ctr Univ Norte Espirito, Rodovia BR 101 Norte,Km 60, BR-29932540 Sao Mateus, ES, Brazil

来源：

JOURNAL OF FISH BIOLOGY | 2016年 / 89卷 / 01期

关键词：

artificial reefs; endangered species; Epinephelidae; reef fish; South Atlantic; SERRANIDAE; FISH; REPRODUCTION; PISCES; GULF;

D O I：

10.1111/jfb.13028

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

In this study, seasonal numerical abundance of the critically endangered Atlantic goliath grouper Epinephelus itajara was estimated by conducting scuba dive surveys and calculating sightings-per-unit-effort (SPUE) at three sites in southern Brazil. Seasonal differences in size and reproductive condition of captured or confiscated specimens were compared. The SPUE differed significantly with season, increasing in late spring and peaking during the austral summer months. A significant effect was observed in the number of fish relative to the lunar cycle. All females sampled during the summer were spawning capable, while all those sampled during other seasons were either regressing or regenerating. What these data strongly infer is that the E. itajara spawning aggregation sites have been located in the southern state of Parana and the northern state of Santa Catarina and summer is the most likely spawning season. Size frequency distributions, abundance and reproductive state were estimated and correlated with environmental variables. (C) 2016 The Fisheries Society of the British Isles

引用

页码：876 / 889

页数：14

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