Dynamics and effects of Ligula intestinalis (L.) infection in the native fish Barbus callensis Valenciennes, 1842 in Algeria

Abstract

The dynamics of the emergence, duration, and decline phases in epizootic cycles are well known for humans and some crops, but they are poorly understood for host–parasite systems in the wild. Parasites may be particularly insidious as they are often introduced unintentionally, simultaneously with their hosts, and later transferred to species in the new location. Here we investigate the epizootic dynamics of the tapeworm

Impact of Endocrine Disruption on Host-Parasite Interaction: A Digest from a Cosmopolitan Cestode Model Ligula intestinalis

“…In testicle tissue, MMC (melano-macrophage centre), dispersed haemorrhage and atrophy were seen as results of L. intestinalis induced disruption. The atrophy of the gonads was also reported by Rouis et al (2016) in infected Barbus callensis.…”

“…The intricate relationship between L. intestinalis and its host fishes and its ability to cause various adverse effects due to endocrine disruption, have perplexed the biologists from ages (Arme and Owen 1968;Loot et al 2001aLoot et al , 2001bLoot et al and 2002Palm et al 2018). The tapeworm L. intestinalis (Linnaeus, 1758) Gemlin, 1790 (Cestoda: Diphyllobothriidea) is the most frequent and widespread parasite with a three-host life cycle (Rouis et al 2016). The copepods are known as the first and fishes the second intermediate hosts.…”

“…Sri Lanka Data unknown Weliange and Amarasinghe (2001) Barbus callensis Algeria Inhibited gonad development Rouis et al (2016) Barbus fasciolatus Zimbabwe Data unknown Chishawa (1991), Doue ¨llou (1992)…”

“…Barbus paludinosus Zimbabwe Data unknown Barson and Marshall (2003) Blicca bjoerkna France, Czech Republic Fall in haemoglobin, liver glycogen level low, decrease in fat content Shpolyanskaya (1953), Kosheva (1956), Barus and Prokes (1994), Bouzid et al (2008) Carassius carassius Ukraine Increase in the monocyte and polymorphonuclear leukocyte count Shpolyanskaya (1953) (Arme and Owen 1968;Loot et al 2001aLoot et al , 2001bLoot et al and 2002Rouis et al 2016;Palm et al 2018). Most of them emphasised reproductive alterations due to endocrine disruptions (Trubiroha et al 2010a and2010b;Rouis et al 2016). Development of intersex with stress or for the presence of parasites, and feminisation of male hosts were also reported (Jobling and Tyler 2003).…”

Узагальнення Інформації Щодо Лігулідозної Інвазії Риб

“…Плероцеркоїди лігул великого розміру, стрічкоподібної форми, мають біле або кремове забарвлення. Розміри сягають від 5 до 120 см у довжину та 0,5-1,7 см у ширину [29]. На передньому кінці стробіли паразита розташовані щілиноподібні ботрії для фіксації на тканинах організму.…”