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  • 1
    Publication Date: 2021-05-19
    Description: Published
    Keywords: Echouage ; Requin blanc ; Sphargis coriacea ; Tortues luth ; Physeter macrocephalus ; Cachalot ; Marine fish ; Marine mammals ; Aquatic reptiles ; Fisheries ; Rare species ; Stranding ; Marine
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp. 47-48
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  • 2
    Publication Date: 2021-05-19
    Description: La présente étude realisee sur 1063 individus echantillonnes entre septembre 1998 et decembre 1999, montre que les poissons captures pendant les campagnes de peche, sont tous des juveniles (〈 6 mois d'age). La taille de premiere capture est de 16 cm (L.F.), et correspond a un poids de 50 g. L'evolution mensuelle des tailles moyennes des captures,indique que la coryphene a une croissance tres rapide. Ces tailles moyennes varient entre 20 et 50 cm (L.F.), entre la debut et la fin de la campagne. L'indice gonadosomatique (IGS), met en individence des individus tous immatures. L'IGS des males varie de 0.180 ( sigma = 0.07 ; n = 25) en aout, 0.247 ( sigma = 0.203 ; n = 41) en septembre, 0.213 ( sigma = 0.19 ; n = 11) en octobre et 0.375 ( sigma = 0.24 ; n = 4) en novembre. Pour les femelles l'IGS est toujours superieur a celui des males. Il est de 0.305 ( sigma = 0.15 ; n = 35) en aout, 0.437 ( sigma = 0.148 ; n = 64) en septembre, 0.134 (s = 0.078 ; n = 38) en octobre et 0.450 ( sigma = 0.120 ; n = 14) en novembre. Le sex-ratio des individus captures pendant la campagne est de 2:1 en faveur des femelles. La relation taille-poids, montre une croissance allometrique positive et aucune difference significative n'est observee entre les sexes, pour les tailles etudiees (18 cm 〈 L.F. 〈 50 cm).: W = 0.0102 L.F. super(3.0155) (n = 595 ; r super(2) = 0.98 ; sexes confondus).
    Description: In this study, 1063 Coryphaena hippurus individuals have been sampled between September 1998 and December 1999. The data show that the individuals captured during the fishing season are all juveniles (〈6 months old). The first-catch size is 16 cm (F.L.) and correspond to a weight of 50 g. The evolution of the monthly mean size of the captures indicate that the dolphinfish has a fast growth in tunisia coastal waters. These sizes vary from 20 to 50 cm (F.L.) between the begining and the end of fishing season.The Gonadosomatic Index (GSI) of the males vary from 0.180 ( sigma = 0.07 ; n = 25) in August, 0.247 ( sigma = 0.203 ; n = 41) in September, 0.213 ( sigma = 0.19 ; n = 11) in October and 0.375 ( sigma = 0.24 ; n = 4) in November. The females GSI's are always higher than males ones. It's vary from 0.305 (s = 0.15 ; n = 35) in Augustt, to 0.437 ( sigma = 0.148 ; n = 64) in September, 0.134 ( sigma = 0.078 ; n = 38) in October and 0.450 ( sigma = 0.120 ; n = 14) in November. The sex-ratio of the individuals captured during the fishing season, is of 2 females for 1 male. The size-weight relationship gives positive allometric growth and there is no significative difference is observed between sexes for the sampled sizes (18 cm 〈 F.L. 〈 50 cm): W = 0.0102 L.F super(3.0155) (n = 595 ; r super(2) = 0.98) both sexes.
    Description: Published
    Keywords: Pêche ; Biologie ; Coryphène ; Gonadosomatic index ; Growth ; Sex ratio ; Fisheries ; Fishery biology ; Size distribution ; Coryphaena hippurus ; Marine
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp. 69-83
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  • 3
    Publication Date: 2022-05-25
    Description: Author Posting. © The Author(s), 2014. This is the author's version of the work. It is posted here for personal use, not for redistribution. The definitive version was published in Fish and Fisheries 17 (2016): 1183–1193, doi:10.1111/faf.12110.
    Description: Global change is occurring now, often with consequences far beyond those anticipated. Although there is a wide range of assessment approaches available to address specific aspects of global change, there is currently no framework to identify what governance responses have worked and where, what has facilitated change, and what preventative options are possible. To respond to this need, we present an integrated assessment framework that builds on knowledge learned from past experience of responses to global change, to enable decision makers, researchers, managers and local stakeholders to: (1) make decisions efficiently; (2) triage and improve their responses; and (3) evaluate where to most effectively allocate resources to reduce vulnerability and enhance resilience of coastal peoples. This integrated assessment framework, IMBER-ADApT is intended to enable and enhance decision making through the development a typology of case studies providing lessons on how the natural, social and governance systems respond to the challenges of global change. The typology is developed from a database of case studies detailing the systems affected by change, responses to change and, critically, an appraisal of these responses, generating knowledge-based solutions that can be applied to other comparable situations. Fisheries, which suffer from multiple pressures, are the current focus of the proposed framework, but it could be applied to a wide range of global change issues. IMBER-ADApT has the potential to contribute to timely, cost-effective policy and governing decision making and responses. It offers cross-scale learning to help ameliorate, and eventually prevent, loss of livelihoods, food sources and habitat.
    Keywords: Appraisal ; Fisheries ; Global change ; IMBER-ADApT ; Interactive governance ; Response ; Systems approach
    Repository Name: Woods Hole Open Access Server
    Type: Preprint
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  • 4
    Publication Date: 2021-05-19
    Description: L'analyse des donnees statistiques recueillies pendant 6 annees (1976-1981) montre que la production de bogues Boops boops (Linne, 1758) et celle de saupes: Sarpa salpa (Linne, 1758) ont presque regulierement augmente dans les pecheries tunisiennes au cours de cette periode. Par ailleurs, la periode des captures maximales, pour les deux especes, coicide d'une facon generale avec celle de la reproduction.
    Description: Six years statistics analysis (1976-1981) revealed that the production of bogue (Boops boops) and gold line (Sarpa salpa) has almost regularly increased in tunisian fisheries during this period. Moreover, the period of maximum catches of the two species coincides, generaly, with their reproduction period.
    Description: Published
    Keywords: Biological production ; Fisheries ; Statistical analysis ; Reproduction ; Sarpa salpa ; Boops boops ; Marine
    Repository Name: AquaDocs
    Type: Journal Contribution , Refereed
    Format: pp. 99-106
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  • 5
    Publication Date: 2021-05-19
    Description: Published
    Keywords: Fishing fleet ; Sea ; Ocean ; Fisheries ; Accident ; Fishing vessel
    Repository Name: AquaDocs
    Type: Book/Monograph/Conference Proceedings , Not Known
    Format: 315pp.
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  • 6
    Publication Date: 2022-05-26
    Description: From the Forward: The idea for an Exploratory Workshop on Fisheries Sociology emerged from informal discussions held at the 1983 Rural Sociological Society meetings. Planning for the Exploratory Workshop was undertaken by the two of us (Bailey and Harris) with the assistance of Peter Sinclair and Christopher Vanderpool. We sought to identify persons working in different areas of the sociology of fisheries who could present review papers on their areas of inquiry. The papers in this volume are the result of that effort. At the same time, we sought to identify persons who would be interested in attending such a workshop• By combining our personal networks, the mailing list of the Fisheries Anthropologist at the National Marine Fisheries Service (Peter Fricke), and the list of attendees at two sessions on fisheries organized by Bailey at the 1984 Rural Sociological Society meetings, we developed a mailing list of 83 sociologists working on some aspect of fisheries. Invitations to attend the workshop were sent to those persons. In response to the invitation, 24 sociologists attended the Workshop. They came from eleven states, the District of Columbia and Puerto Rico, three provinces of Canada, and Norway. They represented work in both industrialized and developing nations, in subsistence, recreational and commercial fisheries, and in aquaculture.
    Description: This report was prepared with funds from the American Sociological Society; U.S. Department of Commerce, NOAA, Office of Sea Grant under Grant Number NA84AA-D-00033 (R/S-12); and the J . N. Pew, Jr. Charitable Trust.
    Keywords: Fisheries ; Fishery management
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 7
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    Woods Hole Oceanographic Institution
    Publication Date: 2022-05-26
    Description: The Coastal Research Center activities for the period of 1984 to 1986 are described briefly. Major projects include: Assimilative Capacity-Buzzards Bay, Georges Bank book; Instrumentation-Experimental Seawater Flume, Sea Level Change - Measurement and Consequences; and Fisheries Ecology. General activities are also described.
    Description: Prepared under grants from the Andrew W. Mellon Foundation, the Richard King Mellon Foundation, and the Mobil Foundation, Incorporated.
    Keywords: Coasts ; Fisheries ; Ecology
    Repository Name: Woods Hole Open Access Server
    Type: Technical Report
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  • 8
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal of Morphology 57 (1935), S. 1-29 
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Two kinds of spermatozoa are formed in the testis of Goniobasis laqueata, typical (eupyrene) and atypical (apyrene); a similar dimorphism is noted in several other related genera. The development of each type of spermatozoon is described in Goniobasis. The apyrene spermatozoa do not appear in the testis until eupyrene spermatogenesis has progressed to the formation of mature eupyrene spermatozoa. After this time apyrene spermatogenesis becomes predominant. It is suggested that this condition is indicative of a modified protandric hermaphroditism, according to a recent theory of spermic dimorphism. The anatomy of the reproductive system of Goniobasis is described briefly, and the behavior and fate of the two types of spermatozoa are noted. Only the eupyrene spermatozoa are inclosed in a spermatophore formed in a special organ of the male, the apyrenes being somehow excluded. Thus the latter do not reach the female in copulation and can have no necessary functional relationship to the ova at the time of fertilization. The delayed formation of the apyrene spermatozoa, and other facts, indicate that they are probably not concerned with the nutrition or transport of the eupyrene spermatozoa.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    New York, NY : Wiley-Blackwell
    Journal of Morphology 57 (1935), S. 61-89 
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: Three pairs of thymus primordia are found at 6 to 6.5 mm. on the dorsal lateral ends of the second, third and fourth visceral pouches. Those on each side after fusing by growth and migratin come to lie above the third visceral pouch, whence the thymus migrates upward and backward; growing in size, it stretches above the ends of all the gill pouches. It pushes inward into the mesenchyme at 12 to 13 mm. and becomes perforated and surrounded by blood vessels and connective tissue which separate it almost completely from the epithelium. No septa are found; occasionally the third primordium fails to fuse and forms a separate lobe.The early thymus is a syncytium in which are found lymphoblasts, identified by structure of the cytosome and its behavior during mitosis. Evidence is presented that lymphoblasts migrate into the thymus where they increase in number with corresponding increase in length of cytoplasmic bridges and size of intercellular spaces. At 10 mm. begins a rapid increase in size of the thymus and in number of lymphoblasts and decrease in size of the latter, culminating at 12 to 13 mm. in their transformation into thymocytes. A medulla associated with blood vessels is unmistakable at 30 mm.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 0362-2525
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Biology , Medicine
    Notes: A study of the development of the sense organs of the larva of Botryllus schlosseri to determine, if possible, any homologies between its sense organs and those of other types of ascidians such as Molgula and Ammaroucium, which have sense organs structurally very different.The statolith appears in the Botryllus embryo as a single club-shaped cell. The lightsensitive organs have their primordia slightly later as five small filaments, each developed from a ganglion cell. A cavity appears in the statolith into which the light-sensitive filaments penetrate. Later development is concerned with pigmentation of the statolith, and a twisting process which orients it into the position in which it is found in the free-swimming larva. The three tactile papillae develop from evaginations of ectoderm at the anterior end of the embryo. The ectodermal cells at the center of a papilla are differentiated into rod-shaped sensory receptors and ganglion-like masses of nerve tissue. Nervous connections are established between these peripheral ganglia and the central nervous system.Results of the investigation indicate that the statoliths of the different ascidian larvae are homologous; the direction eyes probably are not, but have evolved independently from a light-sensitive area in the primitive larva of a common ancestral ascidian. The larvae of Molgula and Ammaroucium possess no structures comparable to the sensory papillae of Botryllus.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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