Tagging of the starfish,<i>Asterias rubens</i>L

Kvalvågnæs, Knut

doi:10.1080/00364827.1972.10411210

Cited by 15 publications

(6 citation statements)

References 3 publications

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“…This method also was unsuccessful as the star-fish were able to extricate themselves from their harnesses. This technique has been tested on other types of starfish with little success (Kvalvagnaes, 1972).…”

Section: Population Dynamics and Taggingmentioning

confidence: 99%

The Acanthaster phenomenon /

Moran¹

1988

168

199

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on the basis of it findings, that A. planci did not "constitute a threat to the Great Barrier Reef as a whole" (Walsh et al., 1971: p. 6). The conclusions of that committee, particularly the one just mentioned, were challenged and debated (e.g. Dwyer, 1971; Endean, 1971b; Talbot, 1971; O'Gower et al., 1972; James, 1976). During 1971 an advisory committee was established to implement the policies of the second committee of inquiry and to coordinate future research. Over the ensuing years many aspects of the biology of A. planci were studied. The progress of these studies was reported in a document prepared by the advisory committee (Walsh, Harvey, Maxwell & Thomson, 1976) and in it further research was recommended particularly on the ecology and population dynamics of the starfish and its coral prey. With the decline of starfish outbreaks during the latter half of the 1970s research on A. planci waned. A further committee was established (by the Great Barrier Reef Marine Park Authority) not long P. J. MORAN after a second outbreak was reported at Green Island at the end of 1979. Once again the results of previous research were reviewed and the significance of those outbreaks was assessed to determine whether further research was warranted. That committee considered the situation serious enough to recommend that several types of research be undertaken, addressing a number of broad aspects of the phenomenon (Advisory Committee on the Crown of Thorns Starfish, 1980). Some of this research was implemented although field studies on the ecology of the starfish were largely neglected. In view of the seriousness of the current series of outbreaks on the Great Barrier Reef another committee was formed with similar aims to those preceding it (Crown of Thorns Starfish Advisory Committee, 1985). In constrast to the findings of the second committee of inquiry this committee concluded that "the destruction of hard coral by aggregations of A. planci poses a serious threat to the organisation and functional relationships within some reef communities within the Great Barrier Reef, at least in the short term" (loc. at., p. 1). It also recognized that outbreaks of starfish posed a "major management problem in some areas of the Great Barrier Reef" (loc. cit., p. 1). On the basis of its findings the committee recommended that a coordinated programme of research be conducted over five years at an estimated cost of $A 3 million. Despite the reviews of these committees and the impetus that they gave to research they have not managed to quell the questions and debates, in Australia at least, concerning the phenomenon. Frequently the debate surrounding the occurrence of outbreaks has been reduced to whether they are seen to be a problem, or threat to the reef and, ultimately, whether they are natural or man-induced events. Logic would have it that if they are natural then nothing is required except to adopt sensible management in areas of commercial interest. If unnatural then action may be required. Reducing the debate to this simplistic ...

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Section: Population Dynamics and Taggingmentioning

confidence: 99%

The Acanthaster phenomenon /

Moran¹

1988

168

199

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“…Artificial marking allows unambiguous and almost instantaneous recognition of individuals (Stonehouse, 1978), but previous attempts to identify individual sea stars through stains, mutilations and tags have had very limited success (Barham et al, 1973;Blankley, 1984;Keesing and Lucas, 1992;Kvalvågnaes, 1972;Lamare et al, 2009;Ormond and Campbell, 1974;Ormond et al, 1973;Paine, 1976;Wilson and Marsh, 1975). Nile Blue sulphate stains lasted up to 6 months (Town, 1980) while tags detached within 131 days (Chim and Tan, 2012).…”

Section: Introductionmentioning

confidence: 99%

Recognition of individual knobby sea stars Protoreaster nodosus (L., 1758) using aboral surface characteristics

Chim

Tan

2012

Journal of Experimental Marine Biology and Ecology

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“…If most of these populations live in marine water, A. rubens can also be found in the Baltic Sea at salinities as low as 8 (Kowalski, 1955), fjords and estuaries (Binyon, 1976; Falk-Petersen, 1982) and is able to withstand the varying salinity of the White Sea (Sarantchova, 2001). As no growth lines or other structures allowing individual aging have been found in the genus Asterias (Smith 1940; Feder, 1956; Hatanaka & Kosaka, 1959; Crump, 1971; Kvalvagnaes, 1972), modal analysis of size–frequency distributions has been the only way to assess the demographic structure of A. rubens populations. The recruitment is generally annual and clearly defined in time (Smith, 1940; Hancock, 1958; Guillou, 1983; Nichols & Barker, 1984).…”

Section: Introductionmentioning

confidence: 99%

Factors controlling juvenile growth and population structure of the starfishAsterias rubensin intertidal habitats: field and experimental approaches

et al. 2011

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International audienceThe dynamics of intertidal populations of the starfish Asterias rubens, living in contrasted habitats and over a broad geographical range, were studied from March 2000 to November 2002 using modal analysis. As only 1 juvenile (first year after recruitment) and 1 adult (subsequent years) modes could be distinguished; only juvenile growth was quantified. Concomitantly, experiments were carried out to test several factors assumed to influence juvenile growth: food quantity and quality, emersion, salinity variations and temperature. Three different juvenile growth patterns were evidenced: (1) a fast and protracted growth linked to high food availability and lack of disturbance; (2) a winter cessation of growth likely due to a seasonal increase of emersion-related stress and salinity variations; and (3) disrupted juvenile dynamics, which was encountered in 2 populations. In the first one, estuarine salinity conditions limited growth and, combined with food depletion, led to the extinction of the population. In the second one, wave action confined most of the population to a restricted area with low food levels. In the third scenario, intraspecific competition for food was probably at the source of an unusual growth pattern in which most juveniles did not grow while a small proportion achieved a medium growth rate

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Tagging of the starfish,Asterias rubensL

Cited by 15 publications

References 3 publications

The Acanthaster phenomenon /

The Acanthaster phenomenon /

Recognition of individual knobby sea stars Protoreaster nodosus (L., 1758) using aboral surface characteristics

Factors controlling juvenile growth and population structure of the starfishAsterias rubensin intertidal habitats: field and experimental approaches

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