Diel and seasonal variation in heterobranch sea slug assemblages within an embayment in temperate eastern Australia

Larkin, Meryl F.; Smith, Stephen; Willan, Richard C.; Davis, Tom R.

doi:10.1007/s12526-017-0700-9

Cited by 15 publications

(27 citation statements)

References 48 publications

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“…We also cannot exclude the influence of seasons on the success of collection. Larkin et al [49] showed a considerable difference in the abundance of marine Heterobranchia seen during the day and night, a factor that we took into consideration to a certain extent. However, we collected only during the late dry season, another factor that may influence overall diversity numbers [49,50].…”

Section: Discussionmentioning

confidence: 99%

First Study on Marine Heterobranchia (Gastropoda, Mollusca) in Bangka Archipelago, North Sulawesi, Indonesia

et al. 2020

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As ephemeral, benthic, secondary consumers usually associated with sessile coral reef organisms, marine heterobranchs are good indicators of the health of marine tropical habitats. Thus, marine Heterobranchia have recently become a major target for monitoring programs. For this work, an extensive survey was made in Bangka Archipelago, the first of its kind in this area. Bangka Archipelago is composed of small islands and the adjacent coastline of North Sulawesi. The substrate is dominated by biogenic reefs and volcanic rocks, thus forming highly diverse habitats. In total, 149 species were collected and/or photo-documented in September 2017 and September 2018, which represents the dry season. They can be assigned to the Cephalaspidea, Aplysiida, Pleurobranchida, Nudibranchia, and Eupulmonata. Thirty-three species are new to science, highlighting the lack of knowledge about the group and especially about this region. Our data provide a baseline for future monitoring surveys, as the anthropogenic pressures on Bangka Archipelago are increasing due to enhanced touristic activities, but also due to large scale environmental changes caused by previous mining operation activities.

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Section: Discussionmentioning

confidence: 99%

First Study on Marine Heterobranchia (Gastropoda, Mollusca) in Bangka Archipelago, North Sulawesi, Indonesia

et al. 2020

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“…This means that populations, and whole assemblages, are likely to respond rapidly to changes in the environment. While this means they may be sensitive to a range of variable factors, increasing knowledge about natural patterns of variation [101,102] will help to distinguish additional effects of changing climate. The data presented here provide ample evidence that distribution patterns are changing rapidly, and that tropical species are able to recruit to warm temperate waters across the continuum of the Australian east coast.…”

Section: Discussionmentioning

confidence: 99%

Beyond Capricornia: Tropical Sea Slugs (Gastropoda, Heterobranchia) Extend Their Distributions into the Tasman Sea

Nimbs

Smith

2018

Diversity

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There is increasing evidence of poleward migration of a broad range of taxa under the influence of a warming ocean. However, patchy research effort, the lack of pre-existing baseline data, and taxonomic uncertainty for some taxa means that unambiguous interpretation of observations is often difficult. Here, we propose that heterobranch sea slugs provide a useful target group for monitoring shifts in distribution. As many sea slugs are highly colourful, popular with underwater photographers and rock-pool ramblers, and found in accessible habitats, they provide an ideal target for citizen scientist programs, such as the Sea Slug Census. This maximises our ability to rapidly gain usable diversity and distributional data. Here, we review records of recent range extensions by tropical species into the subtropical and temperate waters of eastern Australia and document, for the first time in Australian waters, observations of three tropical species of sea slug as well as range extensions for a further six to various locations in the Tasman Sea.

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“…Table 3.2: Summary of all species, daytime activity and number of individuals available for calculating species means. Activity marked with an asterix were not observed by Larkin et al (2017) but categorised from when observed in this study.…”

Section: Nudibranch Phylogenymentioning

confidence: 49%

“…Cortesi & Cheney, 2010;Cheney et al, 2014;. Recent studies have provided empirical evidence that some species of nudibranchs are nocturnal while others are active either only during the day or in both day and night, leading to distinct species assemblages present at either day or night with substantial seasonal variation (Chang, Chen, Willan, Mok, & Yu, 2013;Larkin, Smith, Willan, & Davis, 2017). However, to what extent the activity patterns of these species correlate with their morphology remains unknown.…”

Section: Introductionmentioning

confidence: 99%

“…Using the 'Quantitative Colour Pattern Analysis' (QCPA) presented in Chapter 2 (van den Berg et al, 2020) we quantified the colour pattern design of daytime specific assemblages of dorid nudibranchs in Nelson Bay, New South Wales, Australia (Larkin et al, 2017). Here, for the first time, the design and function of defensive colouration in nudibranchs was investigated using calibrated digital photography .…”

Section: Introductionmentioning

confidence: 99%

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Investigating Defensive Colouration in Nudibranch Molluscs using a Novel Analytical Framework for the Study of Animal Colour Patterns

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Diel and seasonal variation in heterobranch sea slug assemblages within an embayment in temperate eastern Australia

Cited by 15 publications

References 48 publications

First Study on Marine Heterobranchia (Gastropoda, Mollusca) in Bangka Archipelago, North Sulawesi, Indonesia

First Study on Marine Heterobranchia (Gastropoda, Mollusca) in Bangka Archipelago, North Sulawesi, Indonesia

Beyond Capricornia: Tropical Sea Slugs (Gastropoda, Heterobranchia) Extend Their Distributions into the Tasman Sea

Investigating Defensive Colouration in Nudibranch Molluscs using a Novel Analytical Framework for the Study of Animal Colour Patterns

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Diel and seasonal variation in heterobranch sea slug assemblages within an embayment in temperate eastern Australia

Cited by 15 publications

References 48 publications

First Study on Marine Heterobranchia (Gastropoda, Mollusca) in Bangka Archipelago, North Sulawesi, Indonesia

First Study on Marine Heterobranchia (Gastropoda, Mollusca) in Bangka Archipelago, North Sulawesi, Indonesia

Beyond Capricornia: Tropical Sea Slugs (Gastropoda, Heterobranchia) Extend Their Distributions into the Tasman Sea

Investigating Defensive Colouration in Nudibranch Molluscs using a Novel Analytical Framework for the Study of Animal Colour Patterns​​​​​​​

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Investigating Defensive Colouration in Nudibranch Molluscs using a Novel Analytical Framework for the Study of Animal Colour Patterns