Increasing body of research deals with the impact of agricultural products marine environment. Indeed it is expected to detect insecticides, including the ones for biocontrol, in nearshore marine waters and thus predicting where, when and with what magnitude these impacts are most likely to occur is imperative if we are effectively interested in understanding the role of biological products as Bacillus thuringiensis (Bt) on marine biodiversity. Bivalves are important elements of marine biodiversity and very often they play a role of ecosystem engineers in that many other species structurally depend on their presence. Oxygen consumption through respiration in these organisms varies with natural physical and chemical factors like temperature and food availability. However, it has been demonstrated that also several contaminants may affect respiration rates in intertidal bivalves like the small Mediterranean Mytilid, Mytilaster minimus. Since the respiration is an important component of energy budget, deviation of its magnitude from common natural patterns may alter the amount of energy available for growth and reproduction. Such a fact, by cascade, may induce alteration of biodiversity. Experiments have been carried out with adult mussels of about 1.4 ± 0.3 cm collected in March 2010 from the coasts around Palermo (Northern Sicily). We measured standardised respiration rates (µmoli h-1 g-1) at ambient temperature (20.0 ± 1.0°C) in mesocosmal tanks both in presence of Bt and without. The significance of the results and the importance of the methods to detect chronic exposure is discussed.

Arizza, V., Manachini, B., Sarà, G. (2010). EFFECT OF Bacillus thuringiensis ON RESPIRATION RATES OF MARINE INTERTIDAL MYTILASTER INTERTIDAL, MYTILASTER MINIMUS (MOLLUSCA, BIVALVIA). In 43th Annual Meeting of the Society for Invertebrate Pathology, 10th International Colloquium on Invertebrate Pathology and Microbial Control, and The Final Meeting of COST862: Bacterial Toxins for Insect Control (pp.121-121). Trabzon : Karadeniz Technical University.

EFFECT OF Bacillus thuringiensis ON RESPIRATION RATES OF MARINE INTERTIDAL MYTILASTER INTERTIDAL, MYTILASTER MINIMUS (MOLLUSCA, BIVALVIA)

ARIZZA, Vincenzo;MANACHINI, Barbara Rosy Ines;SARA', Gianluca
2010-01-01

Abstract

Increasing body of research deals with the impact of agricultural products marine environment. Indeed it is expected to detect insecticides, including the ones for biocontrol, in nearshore marine waters and thus predicting where, when and with what magnitude these impacts are most likely to occur is imperative if we are effectively interested in understanding the role of biological products as Bacillus thuringiensis (Bt) on marine biodiversity. Bivalves are important elements of marine biodiversity and very often they play a role of ecosystem engineers in that many other species structurally depend on their presence. Oxygen consumption through respiration in these organisms varies with natural physical and chemical factors like temperature and food availability. However, it has been demonstrated that also several contaminants may affect respiration rates in intertidal bivalves like the small Mediterranean Mytilid, Mytilaster minimus. Since the respiration is an important component of energy budget, deviation of its magnitude from common natural patterns may alter the amount of energy available for growth and reproduction. Such a fact, by cascade, may induce alteration of biodiversity. Experiments have been carried out with adult mussels of about 1.4 ± 0.3 cm collected in March 2010 from the coasts around Palermo (Northern Sicily). We measured standardised respiration rates (µmoli h-1 g-1) at ambient temperature (20.0 ± 1.0°C) in mesocosmal tanks both in presence of Bt and without. The significance of the results and the importance of the methods to detect chronic exposure is discussed.
Settore AGR/11 - Entomologia Generale E Applicata
Settore BIO/05 - Zoologia
Settore BIO/07 - Ecologia
lug-2010
43th Annual Meeting of the Society for Invertebrate Pathology, 10th International Colloquium on Invertebrate Pathology and Microbial Control, and The Final Meeting of COST862: Bacterial Toxins for Insect Control
Trabzon (Turkey)
11-15 July 2010
1
Arizza, V., Manachini, B., Sarà, G. (2010). EFFECT OF Bacillus thuringiensis ON RESPIRATION RATES OF MARINE INTERTIDAL MYTILASTER INTERTIDAL, MYTILASTER MINIMUS (MOLLUSCA, BIVALVIA). In 43th Annual Meeting of the Society for Invertebrate Pathology, 10th International Colloquium on Invertebrate Pathology and Microbial Control, and The Final Meeting of COST862: Bacterial Toxins for Insect Control (pp.121-121). Trabzon : Karadeniz Technical University.
Proceedings (atti dei congressi)
Arizza, V; Manachini, BRI; Sarà, G
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/51384
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus ND
  • ???jsp.display-item.citation.isi??? ND
social impact