Long-term changes in the fish assemblage of the Laja River, Guanajuato, central Mexico

被引:33
|
作者
Mercado-Silva, Norman
Lyons, John
Diaz-Pardo, Edmundo
Gutiterrez-Hernandez, Altagracia
Ornelas-Garcia, Claudia Patricia
Pedraza-Lara, Carlos
Vander Zanden, M. Jake
机构
[1] Univ Wisconsin, Ctr Limnol, Madison, WI 53706 USA
[2] Univ Autonoma Queretaro, Fac Ciencias Nat, Queretaro, Mexico
关键词
Lerma River; functional group; impact; environmental change; sensitive species; habitat deterioration; exotic species; habitat alteration;
D O I
10.1002/aqc.737
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
1. The structure and composition of fish communities in rivers of central Mexico have been altered as a result of water over-exploitation, habitat fragmentation, introduction of exotic species, and pollution. However, the specific pattern and degree of change are poorly documented. 2. Long-term information from the Laja River (Guanajuato, Mexico) in the Lerma River basin Was used to explore trends in fish species richness and community composition (species origin, trophic niche, tolerance, and preferred habitat) from the 1960s to the present in both river and reservoir sites. 3. Declines in native, sensitive, benthic native and carnivore species ranging from 11% to 30 % per decade, and increases in the number of tolerant and exotic species by 9-20% per decade, are documented. Repeated measures ANOVA and sign tests revealed significant declines in the number of benthic. native. carnivore and sensitive species. Species richness, number of exotics, tolerant species and omnivore species did not change statistically, though statistical power was low. Some important changes occurred in these variables, such as the expansion and establishment of exotics such as Xiphophorus variatus and Micropterus salmoides, which pose a serious potential threat to native species. 4. The changes in fish community composition for the Laja portray how the fish communities in other rivers in central Mexico, for which long-term data do not exist, have changed or could change if environmental deterioration continues. Copyright (c) 2006 John Wiley & Sons, Ltd.
引用
收藏
页码:533 / 546
页数:14
相关论文
共 50 条
  • [1] Epilithic diatoms in the Upper Laja River Basin, Guanajuato, Mexico
    Mora, Demetrio
    Carmona, Javier
    Cantoral-Uriza, Enrique A.
    [J]. REVISTA MEXICANA DE BIODIVERSIDAD, 2015, 86 (04) : 1024 - 1040
  • [2] Fish assemblage changes in an Ozark river after impoundment: A long-term perspective
    Quinn, JW
    Kwak, TJ
    [J]. TRANSACTIONS OF THE AMERICAN FISHERIES SOCIETY, 2003, 132 (01) : 110 - 119
  • [3] Long-Term Changes in Fish Assemblage Structure in the Yellow River Estuary Ecosystem, China
    Shan, Xiujuan
    Sun, Pengfei
    Jin, Xianshi
    Li, Xiansen
    Dai, Fangqun
    [J]. MARINE AND COASTAL FISHERIES, 2013, 5 (01): : 65 - 78
  • [4] Long-term functional changes in an estuarine fish assemblage
    Baptista, J.
    Martinho, F.
    Nyitrai, D.
    Pardal, M. A.
    Dolbeth, M.
    [J]. MARINE POLLUTION BULLETIN, 2015, 97 (1-2) : 125 - 134
  • [5] Long-term changes in the fish assemblage of a neotropical hydroelectric reservoir
    Orsi, M. L.
    Britton, J. R.
    [J]. JOURNAL OF FISH BIOLOGY, 2014, 84 (06) : 1964 - 1970
  • [6] Long-term changes in a reservoir fish assemblage: Stability in an unpredictable environment
    Gido, KB
    Matthews, WJ
    Wolfinbarger, WC
    [J]. ECOLOGICAL APPLICATIONS, 2000, 10 (05) : 1517 - 1529
  • [7] LONG-TERM CHANGES IN SEASONAL FISH ASSEMBLAGE DYNAMICS IN AN ADVENTITIOUS DESERT STREAM
    Miyazono, Seiji
    Taylor, Christopher M.
    [J]. SOUTHWESTERN NATURALIST, 2015, 60 (01) : 72 - 79
  • [8] Seasonal and long-term changes in the fish assemblage of a small stream isolated by a reservoir
    Lienesch, PW
    Lutterschmidt, WI
    Schaefer, JF
    [J]. SOUTHWESTERN NATURALIST, 2000, 45 (03) : 274 - 288
  • [9] Long-term trends in the Bogue Chitto River fish assemblage: A 27 year perspective
    Stewart, JG
    Schieble, CS
    Cashner, RC
    Barko, VA
    [J]. SOUTHEASTERN NATURALIST, 2005, 4 (02) : 261 - 272
  • [10] Salinity and geomorphology drive long-term changes to local and regional fish assemblage attributes in the lower Pecos River, Texas
    Cheek, Christopher A.
    Taylor, Christopher M.
    [J]. ECOLOGY OF FRESHWATER FISH, 2016, 25 (03) : 340 - 351