Methods for the Study of Marine Biodiversity

Costello, Mark J.; Basher, Zeenatul; McLeod, Laura E.; Asaad, Irawan; Claus, S.; Vandepitte, L.; Yasuhara, Moriaki; Gislason, Henrik; Edwards, Martin; Appeltans, Ward; Enevoldsen, Henrik; Edgar, Graham; Miloslavich, Patricia; Monte, Silvia De; Sousa-Pinto, Isabel; Obura, David; Bates, Amanda E.

doi:10.1007/978-3-319-27288-7_6

Cited by 43 publications

(45 citation statements)

References 106 publications

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“…Finally the condition of the organisms which are collected is excellent which aids morphological identification. Specimens can be easily separated for archiving in reference collections, and samples could also be analysed by eDNA methods [3].…”

Section: Abiotic Factor Examined Results Referencesmentioning

confidence: 99%

“…However, it must be recognised that every sampling method is biased [3,67]. To implement the use of light traps for monitoring benthic biodiversity the design, biases and abiotic factors need further research.…”

Section: Abiotic Factor Examined Results Referencesmentioning

confidence: 99%

“…With further research to understand how factors may influence light trap catches at local scales, they are a promising method for mobile benthic macrofauna and zooplankton. They would thus complement emerging non-destructive methods for sampling fish and other vertebrates (e.g., using video and direct observations), and emerging methods for using artificial substrata to census sedentary and sessile biota [3,68,69].…”

Section: Abiotic Factor Examined Results Referencesmentioning

confidence: 99%

“…This would require, "Counts or presence surveys for groups of species easy to monitor or important for ecosystems, over an extensive network of sites, complemented with incidental data" [2]. These EBVs should be sensitive to change, technically feasible, economically viable and sustainable in time [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…Most current marine sampling is centred on vertebrates that either have commercial importance (i.e., fishes) or intrinsic appeal (i.e., birds and marine mammals) [3]. Although chordates only make up 11% of the oceans known species, they are disproportionately sampled and comprise over 60% of the records in the Ocean Biogeographic Information System (OBIS) [5].…”

Section: Introductionmentioning

confidence: 99%

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Light traps for sampling marine biodiversity

McLeod

Costello

2017

Helgol Mar Res

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Standardised sampling methods are required to meet the Convention on Biological Diversity Aichi Targets to monitor trends in biodiversity. Currently the animals monitored in the marine environment are predominantly vertebrates and surface plankton, but arthropods (especially benthic crustaceans) make up a third of marine species, provide an important link in the food web and are under sampled. Sampling these animals with light traps on the benthos in structurally complex areas would fill a gap in biological monitoring. A survey of the literature of light-trap designs showed they collected at least 12 phyla of benthic and planktonic animals, and 13 orders of crustaceans. These traps can be deployed anywhere from an hour to overnight and on the seabed or in the water column. They can be low cost, have low environmental impact and be used in complex and fragile habitats otherwise difficult to sample. Environmental factors, such as water movement and turbidity, as well as trap design and method of deployment, may affect catch. Experimental field tests are required to develop the use of light-traps as a standard method for marine biodiversity monitoring, including design, deployment, and replication.

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Section: Abiotic Factor Examined Results Referencesmentioning

confidence: 99%

Section: Abiotic Factor Examined Results Referencesmentioning

confidence: 99%

Section: Abiotic Factor Examined Results Referencesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Light traps for sampling marine biodiversity

McLeod

Costello

2017

Helgol Mar Res

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Spatial and temporal diversity of fish captured by light traps in various habitats in coastal waters in the oldest marine protected area in Vietnam and its implications for conservation

Pham,

Panfili,

Simier

et al. 2023

Aquatic Conservation

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Vietnam's oldest marine protected area, the Con Dao Archipelago, hosts a high diversity of fishes, but they are not taken into account in its management. Knowledge of the spatial and temporal diversity of fishes is critical to identify the ecological functions of protected habitats, including as nurseries and feeding grounds. One way to assess diversity is using light traps that target young fish stages. Fish were collected monthly from June 2016 to May 2017 using light traps in three main habitats: seagrass beds, coral reefs and the harbour. Morphometry and DNA barcoding were used to identify the species caught. A total of 11,293 fish were collected, of which 1,248 were barcoded and assigned to 158 species belonging to 81 genera and 34 families, evidence that coral reefs and seagrass beds in Con Dao marine protected area (MPA) are home to a highly diverse and abundant community of fish species. Species richness and Shannon diversity indices did not differ significantly among sampling sites, but both species composition and diversity indices differed in the wet and dry seasons. The abundance of fish was related to sea water temperatures, which varied significantly depending on the month. During the dry season, fish diversity peaked in April, when the water temperature was highest. Conserving fish in Con Dao MPA is important not only for the characterization of the trophic network in coral reefs and seagrass beds but also for preservation of coral reef ecosystems and endangered species. Ensuring connectivity between coral reefs and seagrass beds in Con Dao MPA would facilitate fish conservation but, at present, the MPA only focuses on protecting fragmented habitats that are home to a number of endangered mammal species. Local authorities should establish a continuum of protected areas along coastal habitats and seasonal controls on fishing as part of sustainable management of MPAs.

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