Results 71 to 80 of about 2,370 (192)

Implications of the Impacts on CPUE as a Result of the Introduction of MPAs on Hake OMP Performance

, 2010
The possible effects of the introduction of MPAs on hake CPUE, and hence on the performance of the hake OMP, is examined for a number of scenarios. The impact is modeled as a change in catchability q whose existence and magnitude is unknown to the manager.
Rademeyer, Rebecca A, Butterworth, Doug
openaire   +3 more sources

Points vs. passes: A comparison between electric fishing techniques for sampling fish populations in upland headwater streams

Journal of Fish Biology, EarlyView.
Abstract Point‐abundance sampling by electric fishing (PASE) was compared with single‐pass (DF1) and triple‐pass depletion sampling (DF3) electric fishing on the same reaches of four headwater streams sampled over multiple years in the Ribble catchment, UK. Juvenile salmonids, mostly brown trout Salmo trutta with some Atlantic salmon S.
Reagan H. Pearce, Martin R. Perrow, Mark L. Tomlinson, Kirsty A. Turner   +3 more
wiley   +1 more source

Historical case study of a transfer experiment that demonstrated the importance of the estuarine ecosystem for the survival of Chinook salmon (Oncorhynchus tshawytscha) at the Campbell River estuary, British Columbia, Canada

Journal of Fish Biology, EarlyView.
Abstract Estuary dependence to the survival of Chinook salmon was investigated at the Campbell River estuary, British Columbia, Canada. Replicate batches of marked smolts were transferred from a hatchery and released in 1983, 1984 and 1985 at four ecosystems, two that ensured estuarine experience (river, estuary) and two seawards of the estuary ...
Colin D. Levings, J. Steve Macdonald
wiley   +1 more source

Prospects of multipurpose biomonitoring for fisheries assessment based on environmental nucleic acids

Journal of Fish Biology, EarlyView.
Abstract Methods using environmental nucleic acids have become highly effective for monitoring aquatic biodiversity, with an array of suitable use cases, including metrics for fisheries assessment. Traditional methods for assessing fish populations often rely on invasive techniques with limited spatial and temporal coverage.
Ana Ramón‐Laca, Krista M. Nichols, Kim M. Parsons, Ramón Gallego, David R. Vieites, Ignacio Doadrio, Ana Riesgo   +6 more
wiley   +1 more source

CPUE trends of Hilsa kelee and Thryssa vitrirostris exploited by the artisanal finfish fisheries in Mozambique derived from an on-shore sampling of catches by trip

Scientia Marina, 2014
Artisanal fisheries are often overlooked by fisheries management agencies despite their great importance for food security and livelihoods. The assessment and management of those fisheries is often rare, especially in developing countries. In Mozambique,
Massimiliano Cardinale, Osvaldo Chacate, Michele Casini, Isabel Chaúca, Jon Helge Vølstad   +4 more
doaj   +1 more source

Fish assemblage at a newly restored tidal wetland reflects surrounding waterways in the Sacramento‐San Joaquin Delta

Restoration Ecology, EarlyView.
Abstract Introduction We studied the response of fish assemblages, water quality, and plankton following the completion of 700 acres of a 1184‐acre tidal restoration project (Dutch Slough Tidal Restoration; DSTR) in a system degraded by water diversions, channelization, non‐native species, and wetland loss.
Lynette Williams Duman, Meghan Holst, Elsie Platzer, Kyle Phillips, John Durand   +4 more
wiley   +1 more source

Study on The Distribution of Longtail Tuna (Thunnus Tonggol) Catch Based on Chlorophyll-A Using Aqua Modis Imagery in West Sumatera

Grouper
The longtail tuna (Thunnus tonggol) is one of the highest-producing fishery commodities in the waters of West Sumatra. Its abundance is influenced by oceanographic conditions, particularly indicated by chlorophyll-a concentration as a marker of water ...
Muhammad Farhan Al Iqromi, Afriani Harahap, Septy Heltria, Farhan Ramdhani, Ester Restiana Endang Gelis   +4 more
doaj   +1 more source

Dynamics of the Namibian hake fleet and management connotations: application of the ideal free distribution

Scientia Marina, 2005
In order to determine the factors governing the spatial distribution of effort, it is essential to better understand the relationship between CPUE and abundance.
Elizabeth Voges, Ana Gordoa, John G. Field   +2 more
doaj   +1 more source

Multitrophic responses to tidal marsh restoration: early effects of channel configuration on water quality, aquatic food web structure, and fish communities

Restoration Ecology, EarlyView.
Abstract Introduction Tidal wetland restoration is critical for reversing habitat loss and enhancing resilience under sea‐level rise and climate variability. Dutch Slough in the San Francisco Estuary served as a living laboratory for adaptive management.
Joseph E. Merz, Cheryl Dean, Bobbie Flores, Katie Karpenko, Kai Ross, Andrew Veary   +5 more
wiley   +1 more source

Assessment of species composition and CPUE (catch per unit effort) of commercial fish caught with bottom gillnet in Jask coastal waters [PDF]

بوم‌شناسی آبزیان, 2018
Tiger– toothed croaker (Otolithes ruber) is considered as a commercially important target species for fishermen in south of Iran, due to its high economic value and marketability.
Mohammad Saberi, Yousef Peighambari, Mohammad Darvishi, Ghasem Farkhondehshilsar   +3 more
doaj