Tropical coastal ecosystems, such as mangroves, have a great ecological and socioeconomic importance for adjacent systems and local populations, but intensive environmental impact monitoring is still lacking, mainly in East Africa. This study evaluated the potential anthropogenic disturbance on Palaemon concinnus population structure and fitness. Palaemon concinnus populations from one pen-urban (domestic sewage impacted) and two pristine mangrove creeks were studied by sampling nearly 100 shrimps per location every 15 days for 12 months. The shrimps at the pen-urban location were larger, experienced longer reproductive periods, presented higher proportion of ovigerous females and better embryo quality when compared with shrimps inhabiting pristine locations. Physiological indices (RNA/DNA ratio) were similar between shrimps at pristine and pen-urban mangroves. However, a higher level of parasitation by a Bopyridae isopod, Pseudione elongata indicated some degree of stress on the host at the pen-urban mangrove, with potential effects on the host population dynamics.

Monitoring anthropogenic sewage pollution on mangrove creeks in sourthern Mozambique: a test of Palaemon concinnus Dana, 1852 (Palaemonidae) as a biological indicator / G.Penha-Lopes; P.Torres; S.Cannicci; L.Narciso; J.Paula. - In: ENVIRONMENTAL POLLUTION. - ISSN 0269-7491. - STAMPA. - 159:(2011), pp. 636-645. [10.1016/j.envpol.2010.09.029]

Monitoring anthropogenic sewage pollution on mangrove creeks in sourthern Mozambique: a test of Palaemon concinnus Dana, 1852 (Palaemonidae) as a biological indicator

CANNICCI, STEFANO;
2011

Abstract

Tropical coastal ecosystems, such as mangroves, have a great ecological and socioeconomic importance for adjacent systems and local populations, but intensive environmental impact monitoring is still lacking, mainly in East Africa. This study evaluated the potential anthropogenic disturbance on Palaemon concinnus population structure and fitness. Palaemon concinnus populations from one pen-urban (domestic sewage impacted) and two pristine mangrove creeks were studied by sampling nearly 100 shrimps per location every 15 days for 12 months. The shrimps at the pen-urban location were larger, experienced longer reproductive periods, presented higher proportion of ovigerous females and better embryo quality when compared with shrimps inhabiting pristine locations. Physiological indices (RNA/DNA ratio) were similar between shrimps at pristine and pen-urban mangroves. However, a higher level of parasitation by a Bopyridae isopod, Pseudione elongata indicated some degree of stress on the host at the pen-urban mangrove, with potential effects on the host population dynamics.
2011
159
636
645
G.Penha-Lopes; P.Torres; S.Cannicci; L.Narciso; J.Paula
File in questo prodotto:
File Dimensione Formato  
Penha-Lopes et al 2011 env poll.pdf

Accesso chiuso

Tipologia: Pdf editoriale (Version of record)
Licenza: Tutti i diritti riservati
Dimensione 1.03 MB
Formato Adobe PDF
1.03 MB Adobe PDF   Richiedi una copia

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

Utilizza questo identificatore per citare o creare un link a questa risorsa: https://hdl.handle.net/2158/394437
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 37
  • ???jsp.display-item.citation.isi??? 26
social impact