Results 81 to 90 of about 2,370 (192)

Could the Tristan powerboat CPUE decline have been caused by overfishing?

open access: yes, 2022
From 2006 to 2014 the CPUE from the powerboats at Tristan has dropped by about 75%, suggesting that exploitable biomass fell by a similar proportion.The Tristan assessment (Johnston and Butterworth 2015) interprets this primarily as the downside of a decline as a result of the very strong 1997 year class passing through and then out of the fishery ...
Butterworth, Doug, Holloway, Susan
openaire   +1 more source

Investigating the efficacy of tidal wetland restoration in enhancing aquatic food web resources for native fishes

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Endangered fish species, such as Delta smelt (Hypomesus transpacificus), in the San Francisco Estuary are threatened by a multitude of anthropogenic stressors. Tidal wetland restoration can partially mitigate these stressors by increasing food availability of aquatic invertebrate prey, but the efficacy of restoration remains ...
Gabriel Ng   +3 more
wiley   +1 more source

Pesca no Arquipélago de São Pedro e São Paulo: 13 anos de monitoramento

open access: yesBoletim do Instituto de Pesca, 2018
O objetivo do presente trabalho foi verificar a variação temporal da composição especí­­fica dos peixes pelágicos capturados pela frota comercial e a captura-por-unidade-de-esforço (CPUE) das principais espécies capturadas no Arquipélago de São Pedro e ...
Daniel Fadigas VIANA   +4 more
doaj  

Silverside gold mine? Restored tidal habitats host abundant invasive fishes in a novel California marsh (U.S.A.)

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Novel ecosystems, where environmental conditions have been fundamentally altered from a historic norm, require nontraditional approaches to restoration. Suisun Marsh, located within California's San Francisco Estuary (SFE), is a novel, brackish water wetland complex, where managers have begun restoring tidal connectivity to ...
Elsie Platzer   +3 more
wiley   +1 more source

Catch Assessment of Marine Fishes in Cabalian Bay, Philippines: Composition, Abundance, Gear, and Catch Rate

open access: yesCroatian Journal of Fisheries
Marine fisheries play a crucial role in food security and livelihoods but face challenges from overfishing and environmental changes. This study assessed fish composition, abundance, fishing gear usage, and catch per unit effort (CPUE) at three key ...
Patual Catherine   +3 more
doaj   +1 more source

Detection and Quantification of Two Flatfish Species in the Sylt Outer Reef: Development of a qPCR Assay and Forecast Model Based on eDNA Copies

open access: yesEnvironmental DNA, Volume 8, Issue 4, July‐August 2026.
ABSTRACT Assessing fish diversity and abundance is crucial for effective marine conservation and management strategies, particularly in ecologically sensitive areas such as the North Sea. Bottom trawling, one of the most commonly used fishing methods, is facing growing criticism, even for scientific purposes, and has already been banned in ecologically
Yassine Kasmi   +8 more
wiley   +1 more source

Environmental DNA as a Detection and Quantitative Tool for Brown Bullhead Catfish (Ameiurus nebulosus): A Comparison With Conventional Netting

open access: yesEnvironmental DNA, Volume 8, Issue 4, July‐August 2026.
Multiple environmental DNA (eDNA) methods were compared with each other and with fyke netting for detecting invasive brown bullhead catfish. eDNA sampling combined with catfish‐specific metabarcoding provides sensitive detection and effectively complements traditional netting for biosecurity.
Nicola Rose Pyper   +2 more
wiley   +1 more source

Horse Mackerel commercial CPUE and survey data series

open access: yes
This document describes the different fishing sectors for Horse Mackerel. It then summarises the commercial CPUE as well as the available survey data series. Maps are provided to show where fishing occurs and where survey data are from.
Holloway, Susan   +3 more
openaire   +2 more sources

Do Coexisting Cryptic Species of Predatory Peacock Bass (Cichliformes: Cichlidae) Partition Their Niche?

open access: yesEcology of Freshwater Fish, Volume 35, Issue 3, July 2026.
ABSTRACT The mechanisms facilitating coexistence of cryptic species in sympatry have long puzzled ecologists. Cryptic species have nearly identical morphology and, therefore, would be presumed to have high niche overlap and potential for interspecific competition and competitive exclusion when resources are limited. Lowland rivers in South America have
Benton L. Fry, Kirk O. Winemiller
wiley   +1 more source

Efficiency of fishing gears in the river Halda, Chittagong, Bangladesh

open access: yesJournal of Fisheries, 2015
To determine the catch efficiency of fishing gears, catch per unit effort (CPUE) data were collected for two years during January 2007 to December 2008 from the river Halda.
Mohammad Arshad-Ul-Alam   +1 more
doaj  

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