Effects on small weirs on fish parasite communities

LOOT, Géraldine, Y. REYJOL, N. POULET, Andrea ŠIMKOVÁ, S. BLANCHET a Lek SOVAN. Effects on small weirs on fish parasite communities. Vliv malých jezů na složení společenstev rybích parazitů. Parasitology Research. 2007, roč. 101, č. 3, s. 775-489, 12 s. ISSN 0932-0113.

Základní údaje

• Originální název: Effects on small weirs on fish parasite communities
• Název česky: Effects on small weirs on fish parasite communities
• Autoři: LOOT, Géraldine (250 Francie), Y. REYJOL (250 Francie), N. POULET (250 Francie), Andrea ŠIMKOVÁ (203 Česká republika, garant, domácí), S. BLANCHET (250 Francie) a Lek SOVAN (250 Francie).; Vliv malých jezů na složení společenstev rybích parazitů.
• Vydání: Parasitology Research, 2007, 0932-0113.

Další údaje

• Originální jazyk: angličtina
• Typ výsledku: Článek v odborném periodiku
• Obor: 10600 1.6 Biological sciences
• Stát vydavatele: Německo
• Utajení: není předmětem státního či obchodního tajemství
• Impakt faktor: Impact factor: 1.512
• Kód RIV: RIV/00216224:14310/07:00022432
• Organizační jednotka: Přírodovědecká fakulta
• UT WoS: 000249407400014
• Klíčová slova anglicky: fish communities - parasite communities - small weirs

Anotace

In this study, we examined the impacts of small weirs on the parasite community of gudgeon and toxostome in a medium-sized river. We tested changes on parasite species diversity using indices that capture both richness and abundance characteristics, and we examined parasite community structure with null models (co-occurrence index C score) and a multiple discriminant function analysis (MDFA). Our results showed that parasite community diversity of gudgeon is strongly influenced by weirs with a maximum diversity upstream of the weirs. Weirs also induce change in abundance of gudgeon parasite species particularly during summer. Nevertheless, we obtained that weirs had no effect on the parasite co-occurrence patterns. In addition, similarity indices indicate that the parasite faunas of newly established limnophilic species (roach and bleak) are hostspecific and are rarely transmitted to other fish species. We conclude that fish parasite communities responded in different ways to the presence of impassable weirs, but, in a general tendency, changing environmental conditions induced by weirs may represent an ecological risk.

Anotace česky

In this study, we examined the impacts of small weirs on the parasite community of gudgeon and toxostome in a medium-sized river. We tested changes on parasite species diversity using indices that capture both richness and abundance characteristics, and we examined parasite community structure with null models (co-occurrence index C score) and a multiple discriminant function analysis (MDFA). Our results showed that parasite community diversity of gudgeon is strongly influenced by weirs with a maximum diversity upstream of the weirs. Weirs also induce change in abundance of gudgeon parasite species particularly during summer. Nevertheless, we obtained that weirs had no effect on the parasite co-occurrence patterns. In addition, similarity indices indicate that the parasite faunas of newly established limnophilic species (roach and bleak) are hostspecific and are rarely transmitted to other fish species. We conclude that fish parasite communities responded in different ways to the presence of impassable weirs, but, in a general tendency, changing environmental conditions induced by weirs may represent an ecological risk.

Návaznosti

• MSM0021622416, záměr: Název: Diverzita biotických společenstev a populací: kauzální analýza variability v prostoru a čase

Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, Diverzita biotických společenstev: kauzální analýza variability v prostoru a čase