A light trap to sample littoral and limnetic regions of lakes

Faber, Daniel J.

doi:10.1080/03680770.1980.11897086

Cited by 6 publications

(5 citation statements)

References 5 publications

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“…Gregory & Powles (1988) compared light traps with a high speed plankton net, and found that the light traps provided more representative size-frequency distributions of larval fishes than the net In contrast to the present study, they found that the light traps sampled smaller larvae more successfully than the plankton net. This descrepancy may be due to differences in trap design, as the trap used by both Faber (1981) and Gregory & Powles (1985, 1988 was a small, l-chamber design compared to the larger, 3-chambered trap used here. Alternatively, there may be a qualitative difference in the responses by larval fishes to light in the 2 systems.…”

Section: Discussionmentioning

confidence: 92%

“…Similarly, numbers and size-frequencies of lologinid squid compared favourably with large-scale surveys using trawl nets and bongo nets (Rowel1 et al 1985). Light traps have also been used extensively in freshwater habitats (Faber 1981, Gregory & Pocvles 1985. Gregory & Powles (1988) compared light traps with a high speed plankton net, and found that the light traps provided more representative size-frequency distributions of larval fishes than the net In contrast to the present study, they found that the light traps sampled smaller larvae more successfully than the plankton net.…”

Section: Discussionmentioning

confidence: 99%

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Evaluating the performance of light traps for sampling small fish and squid in open waters of the central Great Barrier Reef lagoon

Thorrold¹

1992

Mar. Ecol. Prog. Ser.

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Light traps were used to sample small fish and squid from open waters in the central Great Barrier Reef lagoon. A total of 7203 fish, representing some 38 families, and 706 lologinid squid were caught during sampling periods October to January, 1988 to 1990. The fish catch was dominated by the family Pomacentridae (63 % of fish collected), with lower numbers of lethrinids (6.7 %), clupeids (6.3 %), mullids (3.8 %), and scombrids (2.7 %). Size-frequencies of the fish collected indicated that the light traps sampled late-stage larvae and pelagic juveniles exclusively. No effect of time of night on catch rate was detected. Light traps that were allowed to drift with prevailing water currents caught more fish than anchored traps; this unexpected result may be a function of the effect of current velocity on trap efficiency. Analysis of standard errorkample size curves suggested that optimum replication was achieved with 5 to 6 traps, but that reasonable precision could be obtained with 2 to 3 traps. Coefficients of variation among replicate traps were taxon-specific, ranging from 0.9 (for clupeids) to 0.2-0.1 (for pomacentrids). These values compare favourably with those obtained from trawl nets. Light traps have considerable potential for sampling nekton that are capable of avoiding conventional towed nets.

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Section: Discussionmentioning

confidence: 92%

Section: Discussionmentioning

confidence: 99%

Evaluating the performance of light traps for sampling small fish and squid in open waters of the central Great Barrier Reef lagoon

Thorrold¹

1992

Mar. Ecol. Prog. Ser.

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“…Indeed, light traps can contribute to quantify and resolve the distributions and abundances of fish larvae (Doherty, 1987), and frequent checking at regular intervals has been recommended to provide larvae in 'excellent condition' (Faber, 1981). Yet, this practice may not be feasible in large-scale studies, due to intrinsic spatial and temporal constraints.…”

Section: Increased Efficiencymentioning

confidence: 99%

Evaluating light trap efficiency by application of mesh to prevent inter- and intra-specific in situ predation on fish larvae and juveniles

Vilizzi¹,

Meredith²,

Sharpe³

et al. 2008

Fisheries Research

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“…The design originally popularized for reef fish by Doherty (1987) costs approximately US$ 3,000. Various cheaper designs have since been produced to sample both freshwater and marine habitats (Floyd et al,1984;Ulrish, 1986;Faber, 1990;Secor et al,1992;Ponton, 1994;Stobutzki and Bellwood, 1997;Watson et al, 2002). In this article we describe how a low cost light trap was fabricated and used to sample pre-settlement fish larvae in coastal Kenya.…”

Section: Introductionmentioning

confidence: 99%

Short Communication: A cost effective light trap for sampling tropical fish and crustacean larvae

Mwaluma¹,

Kaunda‐Arara²,

Osore³

et al. 2010

West Ind. Oc. J Mar. Sci.

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Abstract-A simple and relatively cheap locally-assembled light trap was used to sample pre-settlement fish larvae in the Malindi Marine Park, Kenya, for two years. The trap was assembled locally using a water dispenser bottle, plastic bottle necks, buckets, 12V rechargeable alkaline batteries and a diver's dry box. The light unit consisted of a 12 V rechargeable alkaline Jacob's battery that powered a 12 volt energy saving fluorescent bulb of 11Watts. The catch potential and composition of fish larvae sampled using the trap is presented. The technical and functional problems encountered during the construction and operation of the light traps are presented, and improvements suggested. We compare the performance, costs and efficiency of this trap with light-traps used elsewhere in the world. In addition to fish larvae, the traps have potential use in qualitative sampling of crustacean larvae and ornamental fishes for the aquarium trade.

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A light trap to sample littoral and limnetic regions of lakes

Cited by 6 publications

References 5 publications

Evaluating the performance of light traps for sampling small fish and squid in open waters of the central Great Barrier Reef lagoon

Evaluating the performance of light traps for sampling small fish and squid in open waters of the central Great Barrier Reef lagoon

Evaluating light trap efficiency by application of mesh to prevent inter- and intra-specific in situ predation on fish larvae and juveniles

Short Communication: A cost effective light trap for sampling tropical fish and crustacean larvae

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