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Natural body marks on Sphyraena barracuda were recorded with digital images to identify individual fish. Over 18 months, 60 fish were photographed in situ, eight of which were rephotographed at later dates. Re-photographed fish were all large adults (>70 cm total length) and were all seen within 200 m of the site where they were originally observed 10-318 days prior. Over the same period and area, 116 fish were tagged using T-bar tags, yet none of these fish were recaptured. Natural body marks are thus an effective means of identifying and monitoring behaviour of individuals.

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ABSTRACT:Studies of islands have emerged as a unique and vital focus of research over the last couple decades. Works like Hau'ofa's 1994 'Our Sea of Islands' have moved us quite systematically towards the study of islands, underlining the dynamic connectedness between terrestrial and marine environments, and between individual islands and elsewhere. By tracing the many and varied ways that salmon (and other actants) connect oceans, islands, and other land forms in an ongoing inter-species dialogue, we can move the discourse one step further, and dissolve islands into a multispecies dialogue made in movement. Such a strategy opens up some insights on the inter-connectedness of islands and others.