Results 21 to 30 of about 1,458 (180)

Error Distribution Model to Standardize LPUE, CPUE and Survey-Derived Catch Rates of Target and Non-Target Species

open access: yesModelling, 2021
Indices of abundance are usually a key input parameter used for fitting a stock assessment model, as they provide abundance estimates representative of the fraction of the stock that is vulnerable to fishing.
Régis Santos   +4 more
doaj   +1 more source

Modeling and Forecasting of Lake Malombe Fish Biomass and Catch Per Unit Effort (CPUE)

open access: yes, 2020
Lake Malombe fish stocks have been depleted by chronic overfishing. Various management approaches (co-management, command control, and ecosystem-based management to fisheries) have been used to manage the fishery. However, the lack of an accurate predictive model has hampered their success.
Rodgers Makwinja   +6 more
openaire   +2 more sources

Spatial patterns of the yellowfin tuna (Thunnus albacares) in the Eastern Pacific Ocean: an exploration of concentration profiles

open access: yesCiencias Marinas, 2002
The spatial distribution of the yellowfin tuna (Thunnus albacares) abundance in the Eastern Pacific Ocean was studied from commercial catches by the Mexican tuna-fishing fleet.
A Sosa-López, HG Manzo-Monroy
doaj   +1 more source

Standardized catch rate of cockfish, Callorhinchus callorynchus, in a bottom trawl fishery of Patagonia: Is it possible its use as a predictor of abundance trend?

open access: yesBrazilian Journal of Oceanography, 2015
The catch per unit of effort (CPUE) data of cockfish, Callorhinchus callorynchus, during 1986-2011 was evaluated for the bottom trawl fishery of the San Matías gulf (Patagonia, Argentina).
Juan F. Bernasconi   +2 more
doaj   +1 more source

Dynamic catch-effort model for brown shrimp Farfantepenaeus californiensis (holmes) from the Gulf of california, Mexico

open access: yesCiencias Marinas, 2001
We analyzed the catch and effort data for the brown shrimp (Farfantepenaeus californiensis) fishery over 22 years. We used a biomass dynamic model in a stochastic version to analyze the catch-per-unit effort of the trawl fishery in the Gulf of ...
E Morales-Bojórquez   +2 more
doaj   +1 more source

Catch Per Unit Effort (Cpue) Of Purse Seine Fishery For A Period Of 5 Years At The Tumumpa Coastal Fishing Port

open access: yesJurnal Ilmiah PLATAX, 2022
This study aims to analyze the five-year development of CPUE (catch per unit effort) and to find out the fishing effort of ring seine at PPP Tumumpa and its effect on CPUE periodically. Based on the research results, the CPUE value of large pelagics has decreased every year, where the CPUE value in 2017 was 25.42%, in 2018 it was 25.08%, in 2019 it was
Mariana Saragih   +4 more
openaire   +2 more sources

Engine size and proportion of catch kept affects fish catch in Pujada Bay, Davao Oriental

open access: yesDavao Research Journal, 2021
This study aimed to calculate the catch per unit effort (CPUE) and determine the status of the finfish population in Pujada Bay. This was conducted through semi-structured interviews, focus group discussion, and validation of actual catch sampling ...
Arianne Kay Liguez
doaj   +1 more source

Comparative influence of ocean conditions on yellowfin and Atlantic bluefin tuna catch from longlines in the Gulf of Mexico. [PDF]

open access: yesPLoS ONE, 2010
Directed fishing effort for Atlantic bluefin tuna in the Gulf of Mexico (GOM), their primary spawning grounds in the western Atlantic, has been prohibited since the 1980s due to a precipitous decline of the spawning stock biomass.
Steven L H Teo, Barbara A Block
doaj   +1 more source

Standardizing catch per unit effort by machine learning techniques in longline fisheries: a case study of bigeye tuna in the Atlantic Ocean

open access: yesOcean and Coastal Research, 2021
Support vector machine (SVM) is shown to have better performance in catch per unit of effort (CPUE) standardization than other methods. The SVM performance highly relates to its parameters selection and has not been discussed in CPUE standardization ...
Shenglong Yang   +3 more
doaj   +1 more source

Exploring Spatiotemporal Trends in Commercial Fishing Effort of an Abalone Fishing Zone: A GIS-Based Hotspot Model. [PDF]

open access: yesPLoS ONE, 2015
Assessing patterns of fisheries activity at a scale related to resource exploitation has received particular attention in recent times. However, acquiring data about the distribution and spatiotemporal allocation of catch and fishing effort in small ...
M Ali Jalali   +4 more
doaj   +1 more source

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