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Polychlorinated biphenyl accumulation and hepatic EROD activity in golden grey mullet Liza aurata from Tunis Bay, southern Mediterranean
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: W Masmoudi --- UR Physiologie et Ecophysiologie des Organismes Aquatiques, Département des Sciences Biologiques, Faculté des Sciences de Tunis, Tunisia MS Romdhane --- , Tunisia S Khériji --- UR Physiologie et Ecophysiologie des Organismes Aquatiques, Département des Sciences Biologiques, Faculté des Sciences de Tunis, Tunisia M El Cafsi --- UR Physiologie et Ecophysiologie des Organismes Aquatiques, Département des Sciences Biologiques, Faculté des Sciences de Tunis, TunisiaLiza aurata was used as a bioindicator species to monitor contamination by organic xenobiotics of estuarine water at the outlet of Khélij channel [canal], Tunisia, from November 2002 to December 2003. Polychlorinated biphenyl (PCB) concentrations, including coplanar congeners, were measured... -
Human impact on lake ecosystems: the case of Lake Naivasha, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: GeorgeE Otiang'a-Owiti Ignatius Abiya OsweLake Naivasha is a wetland of national and international importance. However, it is under constant anthropogenic pressures, which include the quest for socioeconomic development within the lake ecosystem itself as well as other activities within the catchment. The lake is... -
A preliminary benthic macroinvertebrate index of biotic integrity (B-IBI) for monitoring the Moiben River, Lake Victoria Basin, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FO Masese PO Raburu M MuchiriA Benthic Index of Biotic Integrity (B-IBI) was developed for the Moiben River. The index assesses effects of human disturbance on the biotic condition of stream macroinvertebrate communities. Eight stations were selected to represent different land-use types including forestry, settlement,... -
Macroinvertebrate assemblages as biological indicators of water quality in the Moiben River, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FO Masese M Muchiri PO RaburuBenthic macroinvertebrate assemblages at eight stations in the Moiben River, corresponding to different catchment land uses, were assessed in 2006 as indicators of water quality. The relative abundance per taxon, diversity index, richness index, evenness, dominance, percentage of five dominant... -
A comparison between the morphological and molecular approach to identify the benthic diatom community in the St Lucia Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: M Nunes --- Botany Department and Institute for Coastal and Marine Research, South Africa JB Adams --- Botany Department and Institute for Coastal and Marine Research, South Africa S Van Aswegen --- Department of Biochemistry and Microbiology, South Africa GF Matcher --- Department of Biochemistry and Microbiology, South AfricaThe use of diatoms as bioindicators to detect human-induced change is a globally accepted monitoring tool. DNA metabarcoding is an effective complementary tool to standard microscopic methods for species identification, providing reliable and timeous diatom assessments in a range of... -
Plankton Index of Biotic Integrity (P-IBI) for assessing ecosystem health within the Ouémé River basin, Republic of Benin
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AM Houssou --- , Republic of Bénin DC Adjahouinou --- , Republic of Bénin CA Bonou --- , Republic of Bénin E Montchowui --- , Republic of BéninThis study aims at assessing the impact of organic pollution on plankton communities of the Ouémé River using a Plankton Index of Biotic Integrity (P-IBI) as a tool for ecological heath assessment. Plankton and other environmental data were collected monthly... -
Assessment of the ecological status of the Kinyankonge River (Burundi), using a Biotic Integrity Index of zooplankton (BII-zooplankton)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: S Buhungu --- , Burundi C Sibomana --- , Burundi DC Adjahouinou --- , Bénin G Ntakimazi --- , Burundi CA Bonou --- , Bénin E Montchowui --- , République du BéninThis study aimed at assessing the ecological status of the Kinyankonge River using a zooplankton-based Biotic Integrity Index (BII-zooplankton). This was achieved through monthly collections of zooplankton from four stations along the river over 18 months (from July 2015 to... -
Assessment of river health using benthic macroinvertebrates in the Dwars River, Olifants Water Management Area, Limpopo province, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: TV Mmako --- , South Africa A Addo-Bediako --- , South Africa WJ Luus-Powell --- , South Africa M Kekana --- , South AfricaThe study assessed the impact of water and sediment quality on benthic macroinvertebrate assemblages in the Dwars River, a tributary of the Olifants River, Limpopo province, South Africa. Physico-chemical variables, heavy metals and macroinvertebrates were collected using standard methods. A... -
Comparison of three soil health indicators between different vegetative strip compositions
Item type: Journal Article • Journal: African Journal of Range & Forage Science • Authors: Robyn Nicolay --- , South Africa Simon Jeffery --- , United Kingdom Nicola Randall --- , United KingdomContemporary evidence shows biotic factors play a prominent role in the soil health and the provision of soil functions. Herbaceous grassland species differ in their modulation of soil communities, effects on soil components, as well the processes they interact with... -
Development of a multimetric index for assessing the ecological integrity of some selected rivers and streams in the north-eastern part of Lake Tana sub-basin, Ethiopia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Amelework Zewudu --- , Ethiopia Getachew Beneberu --- , Ethiopia Minwyelet Minigst --- , Ethiopia Amare Mezgebu --- , EthiopiaA multimetric index was developed using benthic macroinvertebrates to assess the ecological health of selected rivers and streams in the north-eastern part of Lake Tana subbasin, Ethiopia. One-time extensive sampling was carried out during the post-rainy season (November–December) of 2016... -
Evaluating the histopathology, condition index and stress-on-stress response of caged brown mussels Perna perna for monitoring marine coastal pollution in Senegal
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: F Tabane --- Centre Régional de Recherche en Écotoxicologie et Sécurité Environnementale (CERES-Locustox), Unité Biologie, Senegal F Cazier --- Centre Commun de Mesures, Université du Littoral Côte d’Opale, France D Dewaélé --- Centre Commun de Mesures, Université du Littoral Côte d’Opale, France K Hylland --- University of Oslo, Norway CT Ba --- Université Cheikh Anta Diop, Senegal M Fall --- Université Cheikh Anta Diop, SenegalThis study is the first in a coastal West African country to evaluate the histopathology, condition index and stress-on-stress response time of caged brown mussels Perna perna for use in pollution monitoring of coastal ecosystems. Perna perna collected from an... -
Effects of diamond mining on sandy beaches in southern Namibia – the use of Tylos granulatus (Isopoda: Oniscidea) as an indicator species
Item type: Journal Article • Journal: African Journal of Marine Science • Authors: K Hutchings --- , South Africa A Rees --- , South Africa A Pulfrich --- , South Africa BM Clark --- , South AfricaSandy beaches provide vital ecosystem services and support diverse ecological communities but are increasingly threatened by anthropogenic pressures. In particular, intertidal mining disrupts sandy beaches and challenges their resilience, yet these ecosystems retain some capacity for environmental recovery. This study...