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Autore principale:	Ildefonso Galeana-Villaseñor
Natura:	Artículo científico
Lingua:	es
Pubblicazione:	Universidad de Valparaíso 2009
Soggetti:	Ciencias de la Tierra tiburón azul Pesca incidental Océano Pacífico oriental
Accesso online:	https://www.redalyc.org/articulo.oa?id=47911450016
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Pesca con anzuelos en barcos palangreros del Océano Pacífico mexicano: efectos en la captura y peso de tiburones y otras especies Ildefonso Galeana-Villaseñor Felipe Galván-Magaña Heriberto Santana-Hernández Ciencias de la Tierra tiburón azul Pesca incidental Océano Pacífico oriental Se evaluó el efecto de dos tipos de anzuelos y dos tipos de carnada en la tasa de captura de barcos palangreros en el noroeste del Océano Pacífico mexicano. Se realizaron cuatro viajes de pesca comercial con un total de 47 lances, entre marzo de 2005 y agosto de 2006. Los dos tipos de anzuelos usados fueron: recto 11º de inclinado 9/0 de uso tradicional y circular plano 16/0 (experimental). Se utilizaron dos tipos de carnada: calamar gigante (Dosidicus gigas) y peces juvenilesde lisa (Mugil cephalus). Se aplicó un diseño experimental factorial en parcelas divididas (¿split-split-plot¿). Se capturó un total de 1304 ejemplares, de los cuales 86,5% fueron tiburones, siendo el tiburón azul (Prionace glauca) la especie dominante y 13,5% estuvo constituido por otras especies. Los resultados mostraron que el tipo de anzuelo no presentó diferencias significativas en la tasa y peso de la captura de tiburones y de las otras especies consideradas como pesca incidental; el tipo de carnada presentó un efecto significativo en la tasa de captura, principalmente en tiburón azul, tiburón jaquetón (Carcharhinus falciformis), dorado (Coryphaena hippurus), así como en el peso de la captura total. La prueba de Tukey, mostró que la carnada de calamar presentó una media superior a la carnada de lisa en la tasa de captura del tiburón azul, piloto, dorado, captura y peso total. 2009 artículo científico 0717-3326 https://www.redalyc.org/articulo.oa?id=47911450016 es http://www.redalyc.org/revista.oa?id=479 Revista de Biología Marina y Oceanografía application/pdf Universidad de Valparaíso Revista de Biología Marina y Oceanografía (Chile) Num.1 Vol.44

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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