The burying behavior of the mole crabs before and after an accident with urban sewage efluents in Bombinhas Beach, Santa Catarina, Brazil

Several environmental factors may interfere in the behavior of mole crab (Emerita brasiliensis Schmitt, 1935), such as the discharge of urban pollutants on the shore, which can be toxic. During a study of the impact of human activities on a beach in Southern Brazil, opportunistically it was tested i...

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Main Authors: Ita Oliveira Silva, Adriano Brasileiro Braga Alvarenga, Edison Rogério Cansi, Vanner Boere
Format: Article
Language:English
Published: Instituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi) 2011-12-01
Series:Revista Ambiente & Água
Subjects:
Online Access:http://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/627
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author Ita Oliveira Silva
Adriano Brasileiro Braga Alvarenga
Edison Rogério Cansi
Vanner Boere
author_facet Ita Oliveira Silva
Adriano Brasileiro Braga Alvarenga
Edison Rogério Cansi
Vanner Boere
author_sort Ita Oliveira Silva
collection DOAJ
description Several environmental factors may interfere in the behavior of mole crab (Emerita brasiliensis Schmitt, 1935), such as the discharge of urban pollutants on the shore, which can be toxic. During a study of the impact of human activities on a beach in Southern Brazil, opportunistically it was tested if burying behavior of the mole crab were affected after an accident causing the discharge of urban effluents. When comparing the period before (two days) and after (one day) the accident, there was a substantial increase in the concentration of ammonia in the seawater, but pH, water temperature, salinity, and the microclimatic conditions remained stable. During the increased ammonia phase, we captured individuals of smaller size, but the latency in an burying test conducted in an aquarium, immediately after the capture, remained unaltered. The discharge of organic pollutants seems affected the surf zone, where small individuals were more abundant, supposedly males and juveniles but not adult females. The maintenance of burying latency by males and juveniles seems to suggest a greater physiological resistance to a short term contamination by ammonia.
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spelling doaj.art-268ccc090fcc4328ae7d81d34e5e05582022-12-22T02:42:19ZengInstituto de Pesquisas Ambientais em Bacias Hidrográficas (IPABHi)Revista Ambiente & Água1980-993X2011-12-0163707610.4136/ambi-agua.627The burying behavior of the mole crabs before and after an accident with urban sewage efluents in Bombinhas Beach, Santa Catarina, BrazilIta Oliveira SilvaAdriano Brasileiro Braga AlvarengaEdison Rogério CansiVanner BoereSeveral environmental factors may interfere in the behavior of mole crab (Emerita brasiliensis Schmitt, 1935), such as the discharge of urban pollutants on the shore, which can be toxic. During a study of the impact of human activities on a beach in Southern Brazil, opportunistically it was tested if burying behavior of the mole crab were affected after an accident causing the discharge of urban effluents. When comparing the period before (two days) and after (one day) the accident, there was a substantial increase in the concentration of ammonia in the seawater, but pH, water temperature, salinity, and the microclimatic conditions remained stable. During the increased ammonia phase, we captured individuals of smaller size, but the latency in an burying test conducted in an aquarium, immediately after the capture, remained unaltered. The discharge of organic pollutants seems affected the surf zone, where small individuals were more abundant, supposedly males and juveniles but not adult females. The maintenance of burying latency by males and juveniles seems to suggest a greater physiological resistance to a short term contamination by ammonia.http://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/627Buryingmole crabEmerita brasiliensispollution effectssewage
spellingShingle Ita Oliveira Silva
Adriano Brasileiro Braga Alvarenga
Edison Rogério Cansi
Vanner Boere
The burying behavior of the mole crabs before and after an accident with urban sewage efluents in Bombinhas Beach, Santa Catarina, Brazil
Revista Ambiente & Água
Burying
mole crab
Emerita brasiliensis
pollution effects
sewage
title The burying behavior of the mole crabs before and after an accident with urban sewage efluents in Bombinhas Beach, Santa Catarina, Brazil
title_full The burying behavior of the mole crabs before and after an accident with urban sewage efluents in Bombinhas Beach, Santa Catarina, Brazil
title_fullStr The burying behavior of the mole crabs before and after an accident with urban sewage efluents in Bombinhas Beach, Santa Catarina, Brazil
title_full_unstemmed The burying behavior of the mole crabs before and after an accident with urban sewage efluents in Bombinhas Beach, Santa Catarina, Brazil
title_short The burying behavior of the mole crabs before and after an accident with urban sewage efluents in Bombinhas Beach, Santa Catarina, Brazil
title_sort burying behavior of the mole crabs before and after an accident with urban sewage efluents in bombinhas beach santa catarina brazil
topic Burying
mole crab
Emerita brasiliensis
pollution effects
sewage
url http://www.ambi-agua.net/seer/index.php/ambi-agua/article/view/627
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