Movements of rock lobsters (<i>Jasus edwardsii</i>) tagged in Fiordland, New Zealand

Annala, John H.; Bycroft, Bruce L.

doi:10.1080/00288330.1993.9516556

Cited by 17 publications

(14 citation statements)

References 4 publications

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“…The observed pattern in red rock lobster abundance may also be related to the physical habitat structure in each region. Red rock lobsters are typically found in crevices and caves (MacDiarmid 1991, Annala & Bycroft 1993, are generally patchily distributed and may take up longterm residency associated with rocky reefs, where they are important predators on invertebrates (Kelly 2001, Langlois et al 2005. This is not a likely explanation for the observed patterns, since each survey site contains large areas of suitable habitat in terms of the physical structure.…”

Section: Discussionmentioning

confidence: 85%

Prey base shifts in red rock lobster Jasus edwardsii in response to habitat conversion in Fiordland marine reserves: implications for effective spatial management

Jack¹,

Wing²,

McLeod³

2009

Mar. Ecol. Prog. Ser.

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Section: Discussionmentioning

confidence: 85%

Prey base shifts in red rock lobster Jasus edwardsii in response to habitat conversion in Fiordland marine reserves: implications for effective spatial management

Jack¹,

Wing²,

McLeod³

2009

Mar. Ecol. Prog. Ser.

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“…The decline in female site association observed above 140 mm CL was based on data from only three individuals, and may have been an artefact of low sample size. Size-related differences in the movement characteristics of J. edwardsii have also been recorded in southern New Zealand, where lobster migrations are dominated by immature females and small males (McKoy 1983;Annala & Bycroft 1993) and similar pre-adult migrations between nursery and adult habitats are also undertaken by the spiny lobsters, Panulirus cygnus and P . argus (Phillips 1983;Davis & Dodrill 1989).…”

Section: Discussionmentioning

confidence: 97%

“…Even in areas where large-scale migrations have been recorded, tagging studies indicate that the bulk of the lobster population is relatively sedentary. In southern New Zealand, where immature female and small male J. edwardsii can move long distances, 87% (n = 3038) of tagged lobsters have been recovered within 5 km of their tagging site (data pooled from McKoy (1983) and Annala & Bycroft (1993)). …”

Section: Discussionmentioning

confidence: 99%

“…The scale of movements examined fell between the large-scale (>5 km) migrations (Street 1969;Annala 1981;McKoy 1983;Annala & Bycroft 1993) and finescale (<150m) movements (MacDiarmid 1991;MacDiarmid et al 1991) previously studied. The scale of movements examined in this study was considered to be important because animals travelling hundreds of metres to several kilometres within relatively small (<5 km) marine reserves have a high probability of crossing reserve boundaries.…”

Section: Introductionmentioning

confidence: 99%

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Movement patterns of mature spiny lobsters,Jasus edwardsii, from a marine reserve

Kelly

MacDiarmid

2003

New Zealand Journal of Marine and Freshwater Research

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The maintenance of long-term associations with particular reef sites is likely to have contributed to the rebuilding of the spiny lobster population (Jasus edwardsii (Hutton) (Decapoda: Palinuridae)) in the Leigh Marine Reserve, in northeast New Zealand. Between 1983 and 1985, 429 lobsters were tagged underwater with western rock lobster tags and antennae tags. Underwater tagging and commercial traps were used to tag a further 737 lobsters with T-bar tags and antennae tags between 1994 and 1996. Twenty-one percent of lobsters resighted (n = 323) between 1983 and 1985 maintained their association with a 15 ha reef inside the reserve for 1-8 years. Site association tended to increase with female size, whereas site association in males was relatively constant until 130 mm carapace length, and then markedly increased. Legalsized lobster abundance fluctuated seasonally, suggesting that a proportion of the population undertook larger-scale movements beyond the reef. This was confirmed during a second tagging programme conducted between 1994 and 1996. About 30% of resighted lobsters (n = 212) moved 0.25-6 km from their tagging site and 20% crossed the boundary, either moving into or out of the reserve. These results indicate that although the Leigh Marine Reserve reduces spatial access to fishing grounds, a proportion of the lobster population moves out of the protected area and becomes susceptible to capture in the adjacent fishery.

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“…It is more likely that the increased abundance was due to an abrupt arrival of large rock lobsters-i.e., immigration of adults. Lobster migrations have been observed for a number of species (see, e.g., Annala andBycroft 1993, Pezzack andDuggan 1986), some of which can travel hundreds of kilometers (Moore andMcFarlane 1984, Groeneveld andBranch 2002). Most Jasus species undergo some form of inshoreoffshore migration associated with molting or reproduction (see review by Booth 1997); significant alongshore migrations are not common (Kelly 2001, Atkinson and Branch 2003, Barrett et al 2009), but in New Zealand, small proportions of populations of Jasus edwardsii (Hutton, 1875) do undergo large-scale migrations in response to changing environmental conditions (McKoy 1983, Annala andBycroft 1993), and mass alongshore migrations of Jasus verreauxi (H. Milne-Edwards, 1851) also take place (Booth 1997).…”

Section: Adult Migration or Larval Settlement?mentioning

confidence: 99%

Modeling a Regime Shift in a Kelp Forest Ecosystem Caused by a Lobster Range Expansion

Blamey¹,

Plagányi²,

Branch³

2013

BMS

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The South African West Coast rock lobster, Jasus lalandii (H. Milne-Edwards, 1837), has expanded its range to the southeast, where its abundance has increased radically. The ecological consequences of this "invasion" are likely to be considerable. We employed a minimally realistic model to simulate the "invasion" and to explore interactions of J. lalandii with the sea urchin, Parechinus angulosus (Leske, 1778), and the abalone, Haliotis midae Linnaeus, 1758, juveniles of which shelter beneath this urchin. Model fits to empirical data were good, although species-interaction terms were difficult to estimate. Base-case trajectories indicated: (1) Lobster biomass peaked at about 1000 t in 1994 and was then reduced by fishing to a stable value approximately 50% lower by 2008. (2) Urchins remained close to carrying capacity in "noninvaded" areas but collapsed to local extinction by 1997 in the invaded area. (3) Abalone declined over 2000-2008 in noninvaded areas because of illegal fishing and collapsed to near zero in the "invaded" area because of illegal fishing combined with increased lobster abundance. Sensitivity analyses favored the hypothesis that the invasion was due to adult immigration rather than larval recruitment. Modeled 50-yr projections indicated that urchins will remain locally extinct in the invaded area, even 50 yrs into the future. The abalone collapse in the invaded area would persist >50 yrs, even if lobsters were absent. We argue that the lobster "invasion" triggered an alternative stable state, making a return to pre-invasion conditions unlikely.

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Movements of rock lobsters (Jasus edwardsii) tagged in Fiordland, New Zealand

Cited by 17 publications

References 4 publications

Prey base shifts in red rock lobster Jasus edwardsii in response to habitat conversion in Fiordland marine reserves: implications for effective spatial management

Prey base shifts in red rock lobster Jasus edwardsii in response to habitat conversion in Fiordland marine reserves: implications for effective spatial management

Movement patterns of mature spiny lobsters,Jasus edwardsii, from a marine reserve

Modeling a Regime Shift in a Kelp Forest Ecosystem Caused by a Lobster Range Expansion

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