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Boucher, Guy; Clavier, Jacques; Garrigue, Claire. |
Oxygen demand, carbon dioxide release and total alkalinity shift were calculated from changes in oxygen, pH and total alkalinity produced by bottom dark incubations at the water-sediment interface of the 3 bottom types identified in a southwest lagoon in New Caledonia. Total sediment oxygen demand (AO?) was corrected from nonbioloyical oxygen demand (NBOD) In order to obtain the apparent biological activity (AOlO)T.o tal carbon dioxide flux (AC02)w as corrected from total alkalinity shift in order to estimate organic carbon processes. The resulting mean carbon dioxide flux (ACOzO= 2.58 mm01 m-' h-', SE = 0.12) exceeded biological oxygen demand (AO," = 1.60 mm01 m-' h-', SE = 0.08). The highly significant ratio estimates from functional regression lines of... |
Tipo: Text |
Palavras-chave: Carbon flux; Metabolism; Tropical lagoon. |
Ano: 1994 |
URL: https://archimer.ifremer.fr/doc/00296/40745/39738.pdf |
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Garrigue, Claire; Bonneville, Claire; Derville, Solène; Allain, Valérie; Aucan, Jérôme; Bourgogne, Hugo; Bachelier, Celine; Dutheil, Cyril; Grelet, Jacques; Laran, Sophie; Menkes, Christophe; Niksic, Sara; Pallin, Logan; Pérard, Véronique; Portal, Annie; Receveur, Aurore; Renaud, Armelle; Roger, Jean; Varillon, David; Vourey, Elodie. |
En 2014 le gouvernement de la Nouvelle-Caledonie a cree le parc naturel de la mer de Corail, l'une des plus grandes zones protegees au monde. Afin de renseigner les zones de conservation prioritaires et de faciliter la mise en place de mesures qui puissent efficacement proteger la megafaune marine, il est necessaire d'acquerir des informations sur sa distribution et l'usage des habitats. C'est pourquoi en 2016, l'IRD a lance le programme WHERE1 qui vise a explorer la distribution spatiale et l'habitat des baleines a bosse pour ameliorer leur gestion spatiale dans le parc naturel de la mer de Corail. Les principaux objectifs du programme WHERE consistent a etablir la distribution des baleines a bosse au sein du parc naturel de la mer de Corail, a evaluer la... |
Tipo: Text |
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Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00611/72338/71167.pdf |
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