Enrique Rodriguez-Marin

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This study deals with important methodology issues that affect age estimates of eastern Atlantic bluefin tuna Thunnus thynnus using dorsal fin spines. Nearly 3800 spine sections were used from fish caught in the north-east Atlantic Ocean and western Mediterranean Sea over a 21 year period. Edge type and marginal increment analyses indicated a yearly(More)
The capacity of individual muscle cells and neurons to establish synaptic specializations along the entire extent of their neurite-muscle contacts was assessed in culture. Spinal cord neurons derived from embryos of Xenopus laevis were plated at low density in cultures of Xenopus myotomal muscle cells in order to obtain isolated motor units whose neuron and(More)
Clinically significant cytomegalovirus cholangitis is well recognized in patients with AIDS but is less common in other groups of immunocompromised patients. The authors describe a 59-year-old man who had undergone renal transplantation in whom this condition developed, and they emphasize that this diagnosis should be considered in renal transplant patients(More)
Growth models describe the change in length or weight as a function of age. Growth curves in tunas can take different forms from relatively simple von Bertalanffy growth curves (Atlantic bluefin, albacore tunas) to more complex two- or three-stanza growth curves (yellowfin, bigeye, skipjack, southern bluefin tunas). We reviewed the growth of the principal(More)
The compiled data for this study represents the first Atlantic and Mediterranean-wide effort to pool all available biometric data for Atlantic bluefin tuna (Thunnus thynnus) with the collaboration of many countries and scientific groups. Biometric relationships were based on an extensive sampling (over 140,000 fish sampled), covering most of the fishing(More)
Table 2 was published with an incorrect number of specimens (n) and coefficient of determination (r) for the weight conversion factors RWT-GGWT and GGWT-RWT for the East and Mediterranean stock unit. As the correct r is lower than the high coefficient of determination chosen as threshold for using the biometric relationship (r-square 0.98), we prefer to(More)
This paper is aimed at reviewing the information from previous bluefin tuna (Thunnus thynnus) tagging research activities in order to plan future conventional tagging surveys, the identification of the ideal tagging areas and seasons for the purposes of describing and quantifying movements between the birth, wintering and feeding areas of bluefin tuna(More)
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