scholarly journals Cormorant predation effects on fish populations: A global meta‐analysis

2021 ◽  
Author(s):  
Maria K. Ovegård ◽  
Niels Jepsen ◽  
Mikaela Bergenius Nord ◽  
Erik Petersson
Keyword(s):  
Meta Analysis ◽  
Fish Populations ◽  
Predation Effects

scholarly journals Indicators of AEI Applied to the Delaware Estuary

2002 ◽  
Vol 2 ◽  
pp. 169-189 ◽  
Author(s):  
Lawrence W. Barnthouse ◽  
Douglas G. Heimbuch ◽  
Vaughn C. Anthony ◽  
Ray W. Hilborn ◽  
Ransom A. Myers
Keyword(s):  
Meta Analysis ◽  
Juvenile Fish ◽  
Fish Populations ◽  
Weight Of Evidence ◽  
Data Sets ◽  
Delaware Estuary ◽  
Fish Stocks ◽  
Trends Analysis ◽  
Definition Of

We evaluated the impacts of entrainment and impingement at the Salem Generating Station on fish populations and communities in the Delaware Estuary. In the absence of an agreed-upon regulatory definition of “adverse environmental impact” (AEI), we developed three independent benchmarks of AEI based on observed or predicted changes that could threaten the sustainability of a population or the integrity of a community.Our benchmarks of AEI included: (1) disruption of the balanced indigenous community of fish in the vicinity of Salem (the “BIC” analysis); (2) a continued downward trend in the abundance of one or more susceptible fish species (the “Trends” analysis); and (3) occurrence of entrainment/impingement mortality sufficient, in combination with fishing mortality, to jeopardize the future sustainability of one or more populations (the “Stock Jeopardy” analysis).The BIC analysis utilized nearly 30 years of species presence/absence data collected in the immediate vicinity of Salem. The Trends analysis examined three independent data sets that document trends in the abundance of juvenile fish throughout the estuary over the past 20 years. The Stock Jeopardy analysis used two different assessment models to quantify potential long-term impacts of entrainment and impingement on susceptible fish populations. For one of these models, the compensatory capacities of the modeled species were quantified through meta-analysis of spawner-recruit data available for several hundred fish stocks.All three analyses indicated that the fish populations and communities of the Delaware Estuary are healthy and show no evidence of an adverse impact due to Salem. Although the specific models and analyses used at Salem are not applicable to every facility, we believe that a weight of evidence approach that evaluates multiple benchmarks of AEI using both retrospective and predictive methods is the best approach for assessing entrainment and impingement impacts at existing facilities.

scholarly journals Trajectories and magnitude of change in coral reef fish populations in Philippine marine reserves: a meta-analysis

Coral Reefs ◽  
2009 ◽  
Vol 28 (4) ◽  
pp. 809-822 ◽  
Author(s):  
R. J. Maliao ◽  
A. T. White ◽  
A. P. Maypa ◽  
R. G. Turingan
Keyword(s):  
Coral Reef ◽  
Reef Fish ◽  
Coral Reef Fish ◽  
Meta Analysis ◽  
Marine Reserves ◽  
Fish Populations

scholarly journals A cross-system meta-analysis reveals coupled predation effects on prey biomass and diversity

Oikos ◽  
2015 ◽  
Vol 124 (11) ◽  
pp. 1427-1435 ◽  
Author(s):  
Izumi Katano ◽  
Hideyuki Doi ◽  
Britas Klemens Eriksson ◽  
Helmut Hillebrand
Keyword(s):  
Meta Analysis ◽  
Prey Biomass ◽  
Predation Effects ◽  
Cross System

Effects of marine reserve age on fish populations: a global meta-analysis

2009 ◽  
Vol 46 (4) ◽  
pp. 743-751 ◽  
Author(s):  
Philip P. Molloy ◽  
Ian B. McLean ◽  
Isabelle M. Côté
Keyword(s):  
Meta Analysis ◽  
Marine Reserve ◽  
Fish Populations

Detecting conservation benefits in spatially protected fish populations with meta-analysis of long-term monitoring data

2006 ◽  
Vol 151 (3) ◽  
pp. 1153-1161 ◽  
Author(s):  
C. Ojeda-Martinez ◽  
J. T. Bayle-Sempere ◽  
P. Sánchez-Jerez ◽  
A. Forcada ◽  
C. Valle
Keyword(s):  
Meta Analysis ◽  
Fish Populations ◽  
Monitoring Data ◽  
Long Term Monitoring ◽  
Term Monitoring
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