Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 11 of 11 for “"stock identification"”.
-
A STUDY OF MEDITERRANEAN BLUEFIN TUNA (Thunnus thynnus L.) WITH REFERENCE TO STOCK IDENTIFICATION AND MANAGEMENT STRATEGIES
… on the assumption that there are two separate stocks (an eastern Atlantic stock, including the Mediterranean Sea and a western Atlantic stock). This hypothesis has never been scientifically confirmed. This study provides evidence of unique stock characteristics of the bluefin tuna population …
-
Application of a multi-method approach to the stock identification and discrimination of kingklip, Genypterus capensis (Smith, 1847), off the South African coast
… and one off the South African South Coast. The identification and delineation of sub-populations is necessary for effective management of exploited species, and determination of the stock identity of individual fish is most effectively and cheaply done using phenotypic characteristics. To assess …
-
Using otolith shape and DNA to identify the stock structure of the spotted wolffish (Anarhichas minor) around Iceland
Proper stock identification is a cornerstone of sustainable fisheries management. The spotted wolffish is overfished in Icelandic waters, primarily due to its capture as bycatch in other fisheries. To determine whether one or more stocks of spotted wolffish (Anarhichas minor) inhabit the waters of …
-
Assessment of the population structure of the South African sardine Sardinops sagax using a multi-method approach and the morphological and molecular characterization of a stock-discriminating digenean parasite biotag of the genus Cardiocephaloides
… for effective fisheries management. Fish stocks are typically identified based on the observation of differences in genetic and/or phenotypic characteristics between fish from discrete units. Recent deliberations on the management of the South African purse-seine sardine fishery recognises …
-
Parasite abundance in Atlantic cod (Gadus morhua) in shallow and deep waters around Iceland
Proper stock identification of atlantic cod (Gadus morhua) is necessary in modern Icelandic fisheries management to ensure that stocks of cod are not overfished. Today the cod fishery in Iceland is treated as a single stock but studies have shown that there might in fact be two. In addition to …
-
Genetic population structure of the least flycatcher (Empidonax minimus): implications for evaluating migratory connectivity
… which is enhanced using outlier loci. A genetic stock identification analysis was conducted to determine the breeding origin of the non-breeding samples, utilizing outlier loci. Twelve out of 29 non-breeding samples were successfully assigned to a breeding population. In two of the three …
-
Regional Variation in Migratory Behavior and Reproductive Output of The Gulf Of Mexico Blue Crab Spawning Stock
… the structure and boundaries of the blue crab stock(s) in the Gulf of Mexico, focusing on large-scale movements of spawning female crabs. Because spawning location is a primary determinant of larval transport pathways, understanding spawning locations and offshore movements of female blue crabs …
-
The study of molecular variation in Atlantic salmon (Salmo salar L.) and brown trout (Salmo trutta L.)
… trout) back to region of origin, in a Genetic Stock Identification exercise. This suggested that the majority of these large sea trout originated from one of the two tributary groups. These results are relevant for the understanding of sea trout population dynamics and for the future management …
-
Un approccio multidisciplinare per l’identificazione dello stock del nasello (Merluccius merluccius, Linnaeus 1758) nei mari sardi
The “stock” concept is fundamental to fisheries management. To manage a fishery responsibly it is important to understand its stock structure and how fishing effort and mortality are distributed (Begg e Waldman, 1999). The failure to comply the true stock structure and the ineffective fisheries …
-
Deep Learning Approaches for PDE-based Image Analysis and Beyond: From the Total Variation Flow to Medieval Paper Analysis
… the sheet. Extracting these features allows the identification of paper stock and gives information about chronology, localisation and movement of manuscripts and people. Most computational work for feature extraction of paper analysis has so far focused on radiography or transmitted light …