Results 21 to 30 of about 928 (159)
Efficacy of metabarcoding for identification of fish eggs evaluated with mock communities
Ecology and Evolution, Volume 10, Issue 7, Page 3463-3476, April 2020., 2020 We examine the effectiveness of using metabarcoding methods on mock communities of known fish egg DNA using six mock communities with known ratios of species and two samples from a large field collection of fish eggs. We examine the ability of our metabarcoding methods to detect species and relative proportion of species identified in each mock ...
Elena M. Duke, Ronald S. Burton
wiley +1 more source
Análisis de las tasas de captura de jurel (Trachurus symmetricus) en la zona centro-sur de Chile (1987-1999) [PDF]
Investigaciones marinas, 2002 Catch per unit effort (CPUE) data from the jack mackerel fishery operating in central-south Chile and covering the period 1987-1999 are analyzed in order to detect changes in relative abundance. Two units for fishing effort were used to compute the catch rate: number of days outside port and the number of trips with capture. The fleet was classified in
Gatica, Claudio, Cubillos, Luis
openaire +2 more sources
Long-term changes in the mean trophic level of Central Chile fishery landings
Scientia Marina, 2005 We explore long-term changes in the mean trophic level (TLm) of Central Chile fishery landings, using a 21 years data series (1979-1999) of official landings (Chilean Fisheries Service) of 16 species that comprise about 95% of total landing, and their ...
Hugo Arancibia, Sergio Neira
doaj +1 more source
Journal of Food Processing and Preservation, 2003 Consumption of fish with high histamine poses health hazards. The isolation, identification and viable counts of the histamine-forming bacteria from jack mackerel in batch cultures in trypticase soy broth with 2% histidine at 25, 15 and 5C were performed.
Bermejo, A +3 more
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Interaction between southern sea lions Otaria flavescens and jack mackerel Trachurus symmetricus commercial fishery off Central Chile: a geostatistical approach [PDF]
Marine Ecology Progress Series, 2004 A spatial description of the operational interaction between southern sea lions and jack mackerel fishing fleet off Central Chile is presented. The descriptive analysis showed a similar spatial trend for the number of sea lions per haul and catch per haul, both increasing in the SE direction, and decreasing in the NW direction.
LA Hückstädt, MC Krautz
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Journal of BioScience and Biotechnology, 2023 Purpose: This research was performed with the aim of hygienic tracking for fish-borne parasitic contamination imported by Jack mackerel fish from certain parts of the world in a fish processing unit during a health inspection in the northern region of ...
Mehrdad Asgharnia +2 more
doaj
Behaviour of the southern sea lion (Otaria flavescens) and consumption of the catch during purse-seining for jack mackerel (Trachurus symmetricus) off central Chile [PDF]
ICES Journal of Marine Science, 2003 AbstractThe fishery for jack mackerel (Trachurus symmetricus) off central Chile competes for the resource with southern sea lions (Otaria flavescens), and during purse-seining makes the fish more accessible to the pinnipeds. Interactions with sea lions were recorded during 31 purse-seine sets off central Chile during October 1999.
L.A Hückstädt, T Antezana
openaire +1 more source
Marine Mammal Science, Volume 35, Issue 1, Page 164-186, January 2019., 2019 Abstract Harbor porpoises (Phocoena phocoena) are commonly observed in Oregon's nearshore marine environment yet knowledge of their ecosystem use and behavior remains limited, generating concerns for potential impacts on this species from future coastal development.
Amanda K. Holdman +3 more
wiley +1 more source
Transactions of the American Fisheries Society, Volume 147, Issue 6, Page 1015-1029, November 2018., 2018 Abstract Like many stocks, the Pacific Bluefin Tuna Thunnus orientalis has been considerably depleted. High exploitation rates on very young fish have reduced the spawning stock biomass (SSB) to 2.6% of the unexploited level. We provide a framework for exploring potential benefits of minimum size regulations as a mechanism for rebuilding stocks, and we
Lisa E. Ailloud +2 more
wiley +1 more source
Fish Larvae Response to Biophysical Changes in the Gulf of California, Mexico (Winter‐Summer)
Journal of Marine Sciences, Volume 2013, Issue 1, 2013., 2013 We analyzed the response of fish larvae assemblages to environmental variables and to physical macro‐ and mesoscale processes in the Gulf of California, during four oceanographic cruises (winter and summer 2005 and 2007). Physical data of the water column obtained through CTD casts, sea surface temperature, and chlorophyll a satellite imagery were used
Raymundo Avendaño-Ibarra +5 more
wiley +1 more source