Life Stages, Anthropogenic Impact, and Temporal Variation of Stranded Sea Turtles in Southern Brazil

2014 ◽  
Vol 13 (1) ◽  
pp. 42-48 ◽  
Author(s):  
Angelo Luís Scherer ◽  
Fernanda Caminha Leal Valls ◽  
Aparecida Brusamarello Basler ◽  
Janete de Fátima Martins Scherer ◽  
Maria Virginia Petry
Keyword(s):  
Temporal Variation ◽  
Anthropogenic Impact ◽  
Sea Turtles ◽  
Life Stages ◽  
Southern Brazil

A new Brazilian species of Stenochironomus Kieffer mining decayed leaves in bromeliads (Diptera: Chironomidae)

Zootaxa ◽  
2005 ◽  
Vol 1046 (1) ◽  
pp. 37 ◽  
Author(s):  
LUIZ CARLOS DE PINHO ◽  
HUMBERTO FONSECA MENDES ◽  
CARLOS BRISOLA MARCONDES
Keyword(s):  
Rain Forest ◽  
Environmental Conservation ◽  
Atlantic Rain Forest ◽  
Life Stages ◽  
Southern Brazil ◽  
Conservation Unit ◽  
Santa Catarina ◽  
Brazilian Species

All life stages of Stenochironomus atlanticus Pinho & Mendes sp. n. are described and figured. The larva mines decaying leaves held in the water of several bromeliad species (Canistrum lindenii (Regel) Mez, Neoregelia laevis (Mez) L.B. Smith, Nidularium innocentii Lemaire, Vriesea philippocoburgii Wawra, and Vriesea vagans (L.B. Smith) L.B. Smith.) in the Atlantic Rain Forest in southern Brazil [Desterro Environmental Conservation Unit (Unidade de Conservação Ambiental Desterro – UCAD), Santa Catarina Island]. Stenochironomus atlanticus is the only species in the genus found in the phytotelmata habitat, and it apparently is restricted to this environment.

Ingestion of plastic marine litter by sea turtles in southern Brazil: abundance, characteristics and potential selectivity

2019 ◽  
Vol 140 ◽  
pp. 536-548 ◽  
Author(s):  
Milena Rizzi ◽  
Fábio L. Rodrigues ◽  
Luciana Medeiros ◽  
Ileana Ortega ◽  
Lucas Rodrigues ◽  
...  
Keyword(s):  
Sea Turtles ◽  
Southern Brazil ◽  
Marine Litter

Marine Debris and Human Impacts on Sea Turtles in Southern Brazil

2001 ◽  
Vol 42 (12) ◽  
pp. 1330-1334 ◽  
Author(s):  
Leandro Bugoni ◽  
Lı́gia Krause ◽  
Maria Virgı́nia Petry
Keyword(s):  
Human Impacts ◽  
Sea Turtles ◽  
Marine Debris ◽  
Southern Brazil

scholarly journals Reproductive biology of Atlantoraja cyclophora (Regan 1903) (Elasmobranchii: Rajidae) off southern Brazil

2005 ◽  
Vol 62 (6) ◽  
pp. 1095-1103 ◽  
Author(s):  
María Cristina Oddone ◽  
Carolus Maria Vooren
Keyword(s):  
Temporal Variation ◽  
Rio Grande ◽  
Population Level ◽  
Reproductive Parameters ◽  
Southern Brazil ◽  
Rio Grande Do Sul ◽  
Individual Level ◽  
Adult Females ◽  
Egg Deposition ◽  
Resting Period

Abstract A total of 459 (245 females, 214 males) Atlantoraja cyclophora was captured by bottom trawl off the coast of Rio Grande do Sul between 30°40′S and 34°30′S during surveys conducted in winter 2001 and summer/autumn 2002 at depths of 100–300 m. Total length at maturity was 52.8 cm for females and 48.5 cm for males. Symmetry and functional parity of the gonads were observed in both sexes, but there was no significant temporal variation in either sex for any of the reproductive parameters studied. Ovulation and egg-deposition were similarly intensive in both seasons. In adult females, there was an ovarian resting period at an individual level, though it was not synchronized at a population level. Distribution of egg-bearing females was not related to depth or species' range.

scholarly journals Temporal variation of sandy beach macrofauna at two sites with distinct environmental conditions on Cassino Beach, extreme southern Brazil

2008 ◽  
Vol 56 (4) ◽  
pp. 257-270 ◽  
Author(s):  
Pedro de Sá Rodrigues da Silva ◽  
Luciano Peyrer das Neves ◽  
Carlos Emílio Bemvenuti
Keyword(s):  
Temporal Variation ◽  
Dominant Species ◽  
Sandy Beach ◽  
Temporal Variations ◽  
Sandy Beaches ◽  
Subtidal Zone ◽  
Low Density ◽  
Environmental Condition ◽  
Southern Brazil ◽  
Low Intensity

Temporal variations of the macrofauna of sandy beaches have been related to variations in the beach morphodynamics and also to the population dynamics of dominant species. The aim of this article is to describe the temporal variation of the intertidal macrofauna at two sites with distinct environmental condition on Cassino Beach, extreme southern Brazil. At each site three transect lines 50 m apart were defined perpendicular to the shore line, from which samples were collected monthly in triplicate at 4 intertidal levels (10 m apart) from June 2004 to May 2005. During winter a generally low density was observed, due to the absence of recruitments and to the mud deposition, which occurred just before sampling (in April 2004), and to low intensity stranding events. Spring witnessed a population explosion of Scolelepis gaucha, a migration of Mesodesma mactroides adults from the subtidal zone, and a strong stranding event. In the summer, recruitment of M. mactroides, Donax hanleyanus and Emerita brasiliensis was observed. Fall was characterized by low densities, except for D. hanleyanus recruitment. The macrofauna at both sites showed a striking seasonal variation in density and diversity, perhaps attributable to the recruitment of numerically dominant species and physical disturbances (stranding and mud deposition).

Temporal variation of phytophilous Chironomidae over a 11-year period in a shallow Neotropical lake in southern Brazil

Hydrobiologia ◽  
2014 ◽  
Vol 742 (1) ◽  
pp. 129-140 ◽  
Author(s):  
Juliana Souza da Silva ◽  
Edélti Faria Albertoni ◽  
Cleber Palma-Silva
Keyword(s):  
Temporal Variation ◽  
Southern Brazil
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