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Bibliographic Details
Main Authors:	Goodsell, Chloe, Jung, Parker, Maslakova, Svetlana, Allen, Jonathan
Format:	Artículo científico
Language:	en
Published:	Journal of experimental zoology. Part A, Ecological and integrative physiology 2026
Subjects:	Animals Invertebrates Longevity
Online Access:	https://pubmed.ncbi.nlm.nih.gov/41328580/
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Baseodiscus the Eldest: First Report of a Decades-Long Lifespan in a Nemertean Species. Goodsell, Chloe Jung, Parker Maslakova, Svetlana Allen, Jonathan Animals Invertebrates Longevity Nemertea is a speciose phylum of marine invertebrate predators ubiquitous in the world's oceans, which includes Lineus longissimus (Gunnerus, 1770)-the world's longest documented extant animal, yet much about the life histories of these remarkable animals remains poorly understood. For example, it is not known how long nemerteans live. We report a maximum known age of a nemertean individual, identified by morphology and DNA-barcoding as belonging to Baseodiscus punnetti (Coe, 1904), which has been kept in aquaria for at least 26 years. This finding confirms previous speculations that at least some species of nemerteans may live for many years and highlights a dearth of knowledge of the longevity of nemerteans and of marine invertebrates more broadly.

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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