Fine-scale habitat partitioning facilitates sympatry between two octopus species in a shallow Florida lagoon

Bennice, Chelsea O.; Rayburn, Andrew P.; Brooks, William R.; Hanlon, Roger T.

doi:10.3354/meps12845

Cited by 11 publications

(11 citation statements)

References 49 publications

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“… 28 – 30 ). Studies on inter- and intraspecific competition in sympatric, highly mobile and obligatory carnivorous invertebrates such as the majority of cephalopods are rare 31 – 33 .…”

Section: Introductionmentioning

confidence: 99%

Diet and life history reduce interspecific and intraspecific competition among three sympatric Arctic cephalopods

Golikov

Ceia

Sabirov

et al. 2020

Sci Rep

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Trophic niche and diet comparisons among closely sympatric marine species are important to understand complex food webs, particularly in regions most affected by climate change. Using stable isotope analyses, all ontogenetic stages of three sympatric species of Arctic cephalopods (genus Rossia) were studied to assess inter- and intraspecific competition with niche and diet overlap and partitioning in West Greenland and the Barents Sea. Seven traits related to resource and habitat utilization were identified in Rossia: no trait was shared by all three species. High boreal R. megaptera and Arctic endemic R. moelleri shared three traits with each other, while both R. megaptera and R. moelleri shared only two unique traits each with widespread boreal-Arctic R. palpebrosa. Thus all traits formed fully uncrossing pattern with each species having unique strategy of resource and habitat utilization. Predicted climate changes in the Arctic would have an impact on competition among Rossia with one potential ‘winner’ (R. megaptera in the Barents Sea) but no potential ‘losers’.

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“… 28 – 30 ). Studies on inter- and intraspecific competition in sympatric, highly mobile and obligatory carnivorous invertebrates such as the majority of cephalopods are rare 31 – 33 .…”

Section: Introductionmentioning

confidence: 99%

Diet and life history reduce interspecific and intraspecific competition among three sympatric Arctic cephalopods

Golikov

Ceia

Sabirov

et al. 2020

Sci Rep

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“…Congeneric spiny lobsters ( Panulirus spp.) cohabitate coral reefs by selecting different den locations based on predation risk and tolerance of environmental disturbance (Lozano‐Alvarez, Briones‐Fourzan, Osorio‐Arciniegas, Negrete‐Soto, & Barradas‐Ortiz, ), and though Octopus vulgaris and its congener, Macrotritopus defilippi , exhibit high spatial overlap in shallow‐water lagoons, each species selects differing den substrates (Bennice, Rayburn, Brooks, & Hanlon, ). Understanding how residency and space use fluctuate based on use of canopy‐forming SAV for juvenile esocid cohorts their first winter with water‐levels may thus offer insights and inform restorative actions to improve nursery habitat.…”

Section: Discussionmentioning

confidence: 99%

Spatiotemporal ecology of juvenile Muskellunge (Esox masquinongy) and Northern Pike (Esox lucius) in upper St. Lawrence River nursery bays during their inaugural fall and winter

Walton‐Rabideau

Lédée

Leblanc

et al. 2019

Ecology of Freshwater Fish

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Understanding the spatial ecology of juvenile freshwater fish beyond summer months is an essential component of their life history puzzle. To this end, declines in the natural populations of sympatric Muskellunge (Esox masquinongy) and Northern Pike (Esox lucius) in the upper St. Lawrence River prompted study of spatiotemporal patterns and habitat requirements associated with earlier life stages of these congeneric, freshwater predators in fall and overwinter periods. Over 75 age‐0 esocids were tagged and passively monitored using acoustic telemetry in four nursery embayments in fall and winter months from 2015 and 2017 months to elucidate spatiotemporal ecology and test hypotheses related to emigration. Presence, residency, space and habitat use were assessed and modelled against key environmental (i.e. water temperature and level) and biological (total length) covariates using mixed effect models. Muskellunge were found to spend more time in deeper, littoral regions with canopy‐forming, submerged aquatic vegetation while Northern Pike aggregated in the deepest, highly vegetated region of their nursery embayment. Results suggest fish may exhibit transitionary movements in fall months and may span outwards into nearshore regions along the main river channel. Studies informing coastal restoration initiatives to increase Muskellunge production are encouraged to assess sympatric habitat use relative to prominent embayment structures and further explore depth partitioning by these young predators. With a substantial influence from water‐level regulation on use of nursery habitat, future studies must work in concert with management plans aimed at producing more natural riverine cycles and thus increased recruitment of Esox species.

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“…This method of distinction is clearly as valid, reliable and accurate as scientifically based surveys. For instance, Bennice et al (2019), using in situ observations, marking locations of octopus-occupied dens, and photoquadrats, observed that the use of different types of substrate allow fine-scale habitat partitioning between Macrotritopus defilippi (associated to sandy bottoms) and Octopus vulgaris (now Octopus americanus; Avendaño et al, 2020) (associated to hard substrate) in a shallow-water lagoon on the Florida coast.…”

Section: Ethnoknowledge and Callistoctopus Furvusmentioning

confidence: 99%

Traditional Knowledge Aids Description When Resolving the Taxonomic Status of Unsettled Species Using Classical and Molecular Taxonomy: The Case of the Shallow-Water Octopus Callistoctopus furvus (Gould, 1852) From the Western Atlantic Ocean

et al. 2021

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Shallow-water marine invertebrate fauna is diverse in tropical latitudes but generally poorly known. This is in part due the remoteness of many of these regions, and a lack of locally trained taxonomists. In such cases, the ethnoknowledge (i.e., information acquired from the sociocultural references of a given social group) of traditional human populations may be a valuable tool to elucidate gaps in the occurrence of some taxa. In this study, we used a combined approach of ethnoknowledge, classic taxonomy and molecular techniques to describe and diagnose an unsettled species of shallow-water octopus of the genus Callistoctopus. A neotype for the Brazilian eastern octopus Callistoctopus furvus (Gould, 1852) is described along with some ecological notes. Octopuses were collected between April and May 2018 during field trips guided by artisanal octopus fishers of Bahia State (Brazil). A linear discriminant analysis showed that the morphology of C. furvus overlapped poorly with Callistoctopus sp. from the Caribbean and Macaronesia (Madeira Archipelago) as well as with Callistoctopus macropus stricto sensu from Mediterranean Sea. Analysis of mitochondrial large ribosomal subunit (rrnL, also known as 16S) gene and cytochrome C oxidase I (COI) showed that C. furvus differs genetically from European C. macropus and the other species in the genus. In general, C. furvus differs from other Atlantic/Mediterranean Callistoctopus species in having a slender body shape and longer mantle lengths. As in other species of the genus, C. furvus is nocturnal and inhabits sandy bottoms, seagrass beds and/or low-profile reefs. Interestingly, C. furvus burrows itself into the sand as a defense mechanism. In conclusion, we showed the support of ethnoknowledge for integrative biodiversity assessments in poorly surveyed remote areas in the western tropical Atlantic.

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Fine-scale habitat partitioning facilitates sympatry between two octopus species in a shallow Florida lagoon

Cited by 11 publications

References 49 publications

Diet and life history reduce interspecific and intraspecific competition among three sympatric Arctic cephalopods

Diet and life history reduce interspecific and intraspecific competition among three sympatric Arctic cephalopods

Spatiotemporal ecology of juvenile Muskellunge (Esox masquinongy) and Northern Pike (Esox lucius) in upper St. Lawrence River nursery bays during their inaugural fall and winter

Traditional Knowledge Aids Description When Resolving the Taxonomic Status of Unsettled Species Using Classical and Molecular Taxonomy: The Case of the Shallow-Water Octopus Callistoctopus furvus (Gould, 1852) From the Western Atlantic Ocean

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