Mapping growth and mortality rates of crevice-dwelling organisms onto a perforated surface: The relevance of ‘cover’ to the carrying capacity of natural and artificial habitats

Caddy, John F.; Stamatopoulos, C.

doi:10.1016/0272-7714(90)90030-u

Cited by 64 publications

(45 citation statements)

References 27 publications

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“…Caddy & Stamatopoulos (1990) suggested that artificial habitats could be used to determine the relative availability of crevices of different sizes in natural environments. In order to detect a population bottleneck effect, these authors proposed identifying the highest percentage of artificial shelter occupancy by a given size class of lobsters.…”

Section: Discussionmentioning

confidence: 99%

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Artificial shelters (casitas) as habitats for juvenile spiny lobsters Panulirus argus in the Mexican Caribbean

Arce¹,

Aguilar-Dávila²,

Sosa-Cordero³

et al. 1997

Mar. Ecol. Prog. Ser.

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The cryptlc and shelter-seeklng behav~our of spiny lobsters Panulirus argus Latrellle prompted the use of artlflclal shelters to examine the juvenlle population structure at Cayos-Contoy. Quintana Roo, Mexlco We tested the hypothesis that habltat type had no influence on shelter occupancy T h e arhflcial shelters used were concrete structures w~t h a PVC frame ( m m -s l z e casltas) Macrofauna a n d potential predators associated wlth the mm-casltas were also quantified The size of the lobsters harbored by these structures emphasized the Importance of the Cayos-Contoy as a nursery habltat for P argus Differences in mini-casita occupancy by luvendes and the assoclatlon between habltat and lobster size groups suggest that availab~llty of natural habitats had an influence on casita occupancy The penodlc removal ot all lobsters from the mini-casitas resulted in the vacancies being occupled mostly by a size-spec~flc group oi juveniles Trans~tional (16 to 25 m m carapace length, CL) and postalgal (26 to 35 mm CL) luvenile stages recruited malnly to vegetated habitats with larger lobsters occupylng patch reef habitats Mlni-caslta occupancy was dominated by transitional and post-algal early juvenlle stages (41 1 and 34 6% respectlvely) The fact that the highest percentage of minl-caslta occupancy is by transitional juvenlle P argusls considered to represent a 'population bottleneck effect

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Section: Discussionmentioning

confidence: 99%

“…Given the shelter-seeking behaviour of lobsters, many studies have utilized artificial shelters. Caddy & Stamatopoulos (1990) suggest that an artificial crevice simulator may be used to determine 'population bottlenecks' for lobsters in nature.…”

Section: Introductionmentioning

confidence: 99%

Artificial shelters (casitas) as habitats for juvenile spiny lobsters Panulirus argus in the Mexican Caribbean

Arce¹,

Aguilar-Dávila²,

Sosa-Cordero³

et al. 1997

Mar. Ecol. Prog. Ser.

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“…Knowledge of factors which limit abundance and size structure is important in understanding and managing populations of commercially exploited species (Caddy & Stamatopoulos 1990). Several studies of crevicedwelling animals have shown that experimentally increasing the abundance of refuges can increase recruitment success (Steger 1987, Eggleston et al 1990, Dumbauld et al 1993, Beck 1995.…”

Section: Discussionmentioning

confidence: 99%

“…Quantifying refuge availability is important in understanding the population dynamics of crevicedwelling animals because the availability of suitably sized refuges may cause density-dependent regulation of abundance and size structure (Caddy & Stamatopoulos 1990). For example, the hermit crab is a shelter-dwelling animal which can outgrow its supply of refuges (gastropod shells) before it attalns a less vulnerable size (Vance 1972a, b. Scully 1983.…”

Section: Discussionmentioning

confidence: 99%

“…Alternatively, habitat shifts may arise because of decreasing availability of suitable refuges as body size increases. Animals that increase in size by orders of magnitude must continuously search for larger and larger refuges which are generally of decreasing availability (Caddy & Stamatopoulos 1990). This may decrease survival by increasing exposure to predators while searching for refuges.…”

Section: Introductionmentioning

confidence: 99%

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Size-related decrease in spatial refuge use by Iceland scallops Chlamys islandica:ontogenetic behavioural changes or decreasing refuge availability?

Arsenault¹,

Himmelman

1998

Mar. Ecol. Prog. Ser.

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We examined whether the size-related shift from refuges to exposed surfaces by Iceland scallops Chlamys lslandlca In the Mlngan Islands, northeln Gulf of St Lawrence, eastern Canada, is caused by behavioural changes in their tendency to use lefuges or by decreasing refuge availability as they increase in size A laboratory expenment indicated that the frequency of refuge use did not vary with scallop size when the entrance to available refuges was sufficiently large which suggests that the tendency of scallops to use refuges does not change dunng ontogeny The size of cievices used incleased w t h scallop size, indicating that the size structure of refuges potentially could determine size-specific refuge use Our field observations using SCUBA indicated that the availability of sultably sized refuges (shells of the bivalve Splsula polynyma] decreased markedly with increasing scallop size Slze-related changes in the frequency of refuge use were positively correlated with refuge avallabil~ty suggesting that the shift from refuges to exposed surfaces is caused by decreasing availability of suitably sized refuges as scallops lncrease in size However the density of iefuges was generally greater than the density of scallops, which suggested that refuges were utllized below their carrying capacity The proport1011 of adequately slzed refuges which were occupied by scallops was low ( < l 5 %) and decreased with lncreas~ng scallop slze possibly because scallops had increasing difficulty In locatlng refuges of suitable size as they Increased in size That the shells used as refuges by scallops covered only 6 4 % of the bottom should decrease the probability of their being found Further, because the frequency of suitable refuges decreased wlth increasing scallop size, scallops should progressively have increasing difficulty in locating refuges This would llkely increase the time scallops are exposed to predators while searching for refuges, which is hkely to be cntical for small scallops glven thelr high vulnerability to predators Hence encounter rates w~t h refuges could potentially produce a demographic bottleneck In respect to survlval of recrults

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Introduction: Ecology and Fishery Biology of Spiny Lobsters

Lipcius

Eggleston

2000

Spiny Lobsters

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Mapping growth and mortality rates of crevice-dwelling organisms onto a perforated surface: The relevance of ‘cover’ to the carrying capacity of natural and artificial habitats

Cited by 64 publications

References 27 publications

Artificial shelters (casitas) as habitats for juvenile spiny lobsters Panulirus argus in the Mexican Caribbean

Artificial shelters (casitas) as habitats for juvenile spiny lobsters Panulirus argus in the Mexican Caribbean

Size-related decrease in spatial refuge use by Iceland scallops Chlamys islandica:ontogenetic behavioural changes or decreasing refuge availability?

Introduction: Ecology and Fishery Biology of Spiny Lobsters

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