@conference {16416, title = {ΣΧΕΣΕΙΣ ΜΗΚΩΝ ΚΑΙ ΣΧΕΣΕΙΣ ΜΗΚΟΥΣ ΒΑΡΟΥΣ ΨΑΡΙΩΝ ΤΩΝ ΕΣΩΤΕΡΙΚΩΝ ΥΔΑΤΩΝ ΧΩΡΩΝ ΤΗΣ ΒΑΛΚΑΝΙΚΗΣ ΚΑΙ ΑΝΑΤΟΛΙΚΗΣ ΜΕΣΟΓΕΙΟΥ}, booktitle = { 4ο Πανελλήνιο Συνέδριο - Σύγχρονες Τάσεις της Έρευνας στην Οικολογία}, year = {2008}, month = {9-12 Οκτωβρίου}, publisher = {Ελληνικής Οικολογικής Εταιρείας, Ελληνικής Ζωολογικής Εταιρείας, Ελληνικής Βοτανικής Εταιρείας \& Ελληνικής Φυκολογικής Εταιρείας.}, organization = {Ελληνικής Οικολογικής Εταιρείας, Ελληνικής Ζωολογικής Εταιρείας, Ελληνικής Βοτανικής Εταιρείας \& Ελληνικής Φυκολογικής Εταιρείας.}, address = {Πανεπιστήμιο Θεσσαλίας, Βόλος}, keywords = {fish, Inland waters, internal, length, relationship, water, weight, βάρους, εσωτερικά ύδατα, εσωτερικών, μήκους, σχέσεις, υδάτων, ψαριών}, author = {ΜΠΕΚΡΗ, Μ. and Μπόμπορη, Δ. Χ.} } @conference {16410, title = {ΣΧΕΣΕΙΣ ΜΗΚΩΝ ΚΑΙ ΣΧΕΣΕΙΣ ΜΗΚΟΥΣ ΒΑΡΟΥΣ ΨΑΡΙΩΝ ΤΗΣ ΛΙΜΝΗΣ ΔΟΪΡΑΝΗΣ}, booktitle = { 4ο Πανελλήνιο Συνέδριο - Σύγχρονες Τάσεις της Έρευνας στην Οικολογία}, year = {2008}, month = {9-12 Οκτωβρίου}, publisher = {Ελληνικής Οικολογικής Εταιρείας, Ελληνικής Ζωολογικής Εταιρείας, Ελληνικής Βοτανικής Εταιρείας \& Ελληνικής Φυκολογικής Εταιρείας.}, organization = {Ελληνικής Οικολογικής Εταιρείας, Ελληνικής Ζωολογικής Εταιρείας, Ελληνικής Βοτανικής Εταιρείας \& Ελληνικής Φυκολογικής Εταιρείας.}, address = {Πανεπιστήμιο Θεσσαλίας, Βόλος}, keywords = {∆οϊράνης, Doiran Lake, fish, length, relationships, weight, βάρους, λίμνης, μήκους, σχέσεις, ψαριών}, author = {ΜΠΕΚΡΗ, Μ. and Μπόμπορη, Δ. Χ.} } @conference {16366, title = {ΠΡΟΚΑΤΑΡΚΤΙΚΑ ΑΠΟΤΕΛΕΣΜΑΤΑ ΑΛΙΕΥΤΙΚΗΣ ΜΕΛΕΤΗΣ ΣΤΟΝ ΑΡΓΟΛΙΚΟ ΚΟΛΠΟ}, booktitle = { 4ο Πανελλήνιο Συνέδριο - Σύγχρονες Τάσεις της Έρευνας στην Οικολογία}, year = {2008}, month = {9-12 Οκτωβρίου}, publisher = {Ελληνικής Οικολογικής Εταιρείας, Ελληνικής Ζωολογικής Εταιρείας, Ελληνικής Βοτανικής Εταιρείας \& Ελληνικής Φυκολογικής Εταιρείας.}, organization = {Ελληνικής Οικολογικής Εταιρείας, Ελληνικής Ζωολογικής Εταιρείας, Ελληνικής Βοτανικής Εταιρείας \& Ελληνικής Φυκολογικής Εταιρείας.}, address = {Πανεπιστήμιο Θεσσαλίας, Βόλος}, keywords = {Argolikos Bay, Cephalopoda, Crustacea, fish, viability, αγρολικός κόλπος, βιωσιμότητα, Καρκινοειδή, κεφαλόποδα, ψάρι}, author = {Καπίρης, Κ and Καβαδάς, Σ and Κάλλιας, Η and Ντογραμματζή, Κ and Χρηστίδης, Γ} } @article {11259, title = {Interactions between bluefish Pomatomus saltatrix (L.) and coastal sea-cage farms in the Mediterranean Sea}, journal = {AquacultureAquacultureAquaculture}, volume = {282}, number = {1-4}, year = {2008}, note = {ISI Document Delivery No.: 363UITimes Cited: 7Cited Reference Count: 31}, month = {Sep}, pages = {61-67}, type = {Article}, abstract = {Coastal sea-cage farms aggregate large concentrations of pelagic and demersal fish. The large numbers of cultured fish and aggregated wild fish often attract a range of marine mammal predators which may break into cages and attack the cultured fish. To date, predation by a finfish species within sea-cages has not been documented. In the Mediterranean Sea, the bluefish Pomatomus saltatrix (L) aggregates around sea-cage farms and enters into cages to predate on the cultured fish. We obtained information about the effects of bluefish predation on aquaculture production through a questionnaire that was completed by fish farmers in Spain, Italy, Malta, Turkey, Greece and Cyprus. In addition, we identified the abundance, size and stomach contents of bluefish aggregated around three fish farms on the coast of Spain through visual counts, and from captured bluefish both inside and outside of the sea-cages. Bluefish occurred around fish farms in Spain, Italy, Malta and Turkey. Farmers in SE Spain reported its presence only inside seabream (Sparus aurata) cages, while in Turkey bluefish were reported from inside seabass (Dicentrarchus labrax) and seabream cages. Greatest aggregated biomass of bluefish reached 1049 and 3191 kg at the Altea and Guardamar farms, respectively, with abundance peaking at 4500 individuals at both farms. Size structures differed markedly between farms, with smaller individuals aggregating at Altea. Stomach content analysis revealed that bluefish on the outside of sea-cages consumed pelagic species such as Sardinella aurita and Trachurus mediterraneus, while they predated on seabream once they incurred into cages, often consuming only the tails of many fish. The interaction of bluefish with sea-cage aquaculture is, at present, a problem of local concern restricted to some areas of the Mediterranean Sea, but its widespread distribution suggests this piscivore may be a problematic predator in other regions. (C) 2008 Elsevier B.V. All rights reserved.}, keywords = {AGGREGATIONS, aquaculture, Atlantic, ATTRACTION, escape, fish farm, impact, management, Pomatomus saltatrix, predation, PREDATOR, SALMON FARMS, seabass, seabream, TEMPORAL VARIABILITY, WILD FISH ASSEMBLAGES}, isbn = {0044-8486}, author = {Sanchez-Jerez, P. and Fernandez-Jover, D. and Bayle-Sempere, J. and Valle, C. and Dempster, T. and Tuya, F. and Juanes, F.} } @article {10470, title = {Grouper aquaculture: Asian success and Mediterranean trials}, journal = {Aquatic Conservation-Marine and Freshwater EcosystemsAquatic Conservation-Marine and Freshwater EcosystemsAquatic Conservation-Marine and Freshwater Ecosystems}, volume = {18}, number = {3}, year = {2008}, note = {ISI Document Delivery No.: 311MJTimes Cited: 5Cited Reference Count: 34}, month = {May}, pages = {297-308}, type = {Article}, abstract = {1. Grouper are of considerable economic value in tropical and subtropical regions and most particularly in south-cast Asia. Moreover, it is in Asia, where this fish is highly prized, that the grouper farming began in the 1980s. 2. The organoleptic qualities of the groupers are not the only characteristics to be appreciated; in culture, their robustness in heavily populated conditions, as well as their rapid growth at elevated temperatures makes them a good species for aquaculture. However, it is, above all, market demand that is outstripping the supply of fish, which is motivating the expansion of grouper aquaculture. 3. At the present time, aquaculture is unable to satisfy demand. The chronic shortage of broodstock means that the alevins, destined for aquaculture, are taken mainly from natural habitats with the aid of fish traps, nets and cyanide, thus contributing to the destruction of south-east Asian reefs. Nevertheless, research is progressing and the number of species whose reproduction is totally controlled is increasing. It is in Taiwan that grouper aquaculture is at its most advanced with a total of five species being raised. 4. Aquaculture is divided into four stages, carried out by different farmers, allowing a more rapid turnover for each farmer and therefore a better financial return. On the other hand, in the Mediterranean at present time, there are no completely controlled grouper captive-breeding programmes. The first attempts at controlled breeding have been carried out since 1995 in Italy, Croatia and Greece. However, farming groupers in captivity, and in particular the control of their reproduction, poses numerous problems. Copyright (C) 2007 John Wiley \& Sons, Ltd.}, keywords = {aquaculture, dusky grouper, EPINEPHELUS-MARGINATUS LOWE, fishing, grouper, islands, Mediterranean, reproduction, SERRANIDAE, sexual inversion, Taiwan}, isbn = {1052-7613}, author = {Pierre, S. and Gaillard, S. and Prevot-D{\textquoteright}Alvise, N. and Aubert, J. and Rostaing-Capaillon, O. and Leung-Tack, D. and Grillasca, J. P.} } @article {2529, title = {Life history parameters as basis for the initial recognition of stock management units in horse mackerel (Trachurus trachurus)}, journal = {Fisheries Research}, volume = {89}, number = {2}, year = {2008}, note = {ISI Document Delivery No.: 276SKTimes Cited: 4Cited Reference Count: 80}, month = {Feb}, pages = {167-180}, type = {Article}, abstract = {

Information on growth, reproductive biology and the distribution of commercial landings was considered in the EU funded project HOMSIR as basis for the initial recognition of management units for horse mackerel. Twenty sampling sites were considered, which covered the entire range of the species distribution. More than 4400 otoliths were aged and the length distributions at age of different sampling sites were compared. Horse mackerel showed great variability in growth although some patterns can be identified. The Mauritanian coast shows the highest median length at age. The increasing trend in median length at age according to the increment in latitude in two different areas (the Portuguese coast and along the west Ireland coast) suggests the possibility of a particular length-dependent migration pattern during the spawning season in these areas. In the Mediterranean, the horse mackerel in the Thyrrenian and the Ionean Seas showed the highest length at age values. The reproductive strategies of the horse mackerel were analysed using the maturity ogives and the batch fecundity. Maturity ogives were estimated in terms of length and age at first maturity. In the Atlantic, both the length and age at first maturity seem to decrease with decreasing latitude. In the Mediterranean, no similar tendency was evident between its western and eastern parts. Statistical differences between all areas were obtained in the analyses of both length (P \< 0.0001) and age at first maturity (P \< 0.05). Batch fecundity had a decreasing trend with latitude in the Atlantic. In the Mediterranean, data were obtained only from two areas: in Greek waters and off Southern Spain. The individuals from the latter had higher fecundity than those from Greek waters. Statistical differences were found between areas (F = 2.1377; P = 0.0346). The distribution of commercial landings in the northeast Atlantic showed that fish move from the south of Ireland to the Norwegian Sea and northern North Sea to feed in the autumn early winter. (C) 2007 Elsevier B.V. All rights reserved.

}, keywords = {life history, recognition, stock management, αναγνώριση, διαχείριση αποθεμάτων, ιστορία ζωής}, isbn = {0165-7836}, url = {https://www.sciencedirect.com/science/article/abs/pii/S0165783607002445}, author = {Abaunza, P. and Gordo, L. S. and Santamaria, M. T. G. and Iversen, S. A. and Murta, A. G. and Gallo, E.} }