The temporal and spatial patterns of larval settlement the bluehead wrasse, Thalasoma bifasciatum, were documented in San Blas Islands Panama. Daily censuses indicated that larvae settle onto coral reefs brief episodes tended to occur around new moon peak intensity between August December each year. magnitude day was unrelated changes local population size but found be significantly correlated with nightly catch planktonic reef fish waters over reef. pattern examined on three scales. On a...

Daily otolith increments were used to determine the daily pattern of settlement bluehead wrasse (Thalassoma bifasciatum), a Caribbean coral reef fish. Recruitment occurs in brief and sporadic episodes even though wrasses spawn every day. Patterns recruitment do not correspond patterns mortality on reef. The composition adult population directly reflects relative rates juveniles year before. dynamics this species may therefore be determined by supply recruits space or some other resource

Variation in larval recruitment is thought to have profound effects on the structure of coral reef fish communities, and planktonic processes often are cited as major factor controlling temporal spatial patterns such recruitment. We looked at relationship between production settlement larvae Caribbean damselfish Stegastes partitus one site attributed any differences acting plankton. In doing so we assumed that pattern observed was representative regime produced settled study area. monitored...

Analyses of daily otolith increment sequences in the bluehead wrasse, Thalassoma bifasciatum, from San Blas Islands Panama indicated that (1) duration planktonic larval period this species ranges 38 to 78 d, (2) those larvae with extended durations reach settlement size at same age as average individuals but then remain for several more weeks, and (3) estimated growth rate during delayed metamorphosis (0.08 mm∙d −1 ) is distinctly lower than both before attaining (0.26 well juveniles after...

In marine organisms, a pelagic larval stage increases the opportunities for long–distance dispersal and is often associated with little genetic differentiation over large geographical distances. Here we test hypothesis that early life–history characteristics, including spatial distributions, affect rates of and, therefore, levels partitioning among three Gulf California reef fishes: Axoclinus nigricaudus, Malacoctenus hubbsi; Ophioblennius steindachneri;. These blennioid fishes have markedly...

The larvae and newly-settled juveniles of the Cubera Snapper, Lutjanus cyanopterus, are identified by DNA barcoding. Four three small L. cyanopterus were detected among a large collection pelagic smaller settled from Caribbean coast Panama. mtDNA COI barcode sequences virtually identical to adults sampled spawning aggregation in St. Thomas, USVI. Barcode for eleven regional species (sensu lato) obtained they exhibited deep interspecific divergences that allowed efficient discrimination...

The new species, Pseudojuloides zeus, is described from two specimens obtained Majuro Atoll in the Marshall Islands and Palau Micronesia, western Pacific Ocean. species distinguished by prominent jagged blue stripes along body a dark spot at base of mid-dorsal fin. P. zeus rarely seen fish, found only on particularly deep reefs and, thus far, locations. single paratype was collected about 80m during 1997 ‘Twilight Zone’ Expedition Bishop Museum since then, series have been for aquarium trade...

Specimens of Starksia were collected throughout the western Atlantic, and a 650-bp portion mitochondrial gene cytochrome oxidase-c subunit I (COl) was sequenced as part re-analysis species diversity Central Atlantic shorefishes. A neighbor-joining tree constructed from sequence data suggests existence several cryptic species. Voucher specimens each genetically distinct lineage color photographs vouchers taken prior to dissection preservation examined for diagnostic morphological characters....

The objective of this study was to ascertain the optimal timing for interplanting rice with groundnuts, aim minimising damage caused by granivorous birds at emergence stage, while simultaneously enhancing yield paddy rice. To achieve objective, two trials (seasons A and B) were conducted using a randomised block design four replications, each five treatments. treatments correspond times when inserting between groundnut rows, 60 days after sowing, ensures higher rate (97%) significantly...

This work sought to obtain a high paddy grain yield potential under the effect of rice sowing times between groundnut lines on yield.To achieve this, randomised complete block design with four replications and five treatments was set up in Kisangani, at PK9, old Buta road. In various plots, sown during leaf-out, fruiting ripening stages groundnut. These were respectively 60, 70, 80, 90 days after sowing, so that leaves crop hid from ravages granivorous birds emergence, order increase yields....

The daily pattern of settlement larvae the bluehead wrasse, Thalassoma bifasciatum, onto a number coral reefs was reconstructed with otolith increment aging technique. Larvae settled simultaneously within an area about 1,000 km 2 . planktonic patch size wrasse is inferred to be at least 46 wide. settling reef same time were not age, indicating that dispersal results in mixing cohorts larvae.

A new goby, Coryphopterus kuna, is described from the Atlantic coasts of Panama and Mexico. The species distinguished other spp. by low median fin pectoral ray counts morphology pelvic fin. fins are fully joined with a rounded outline have branched longer innermost rays. There no frenum connecting two spines heavily speckled black spots in male holotype. late larval stage C. kuna identified DNA sequence matching morphologically similar to but has distinct melanophore pattern. Examination...

Daily increments were found in the otoliths of fallfish Semotilus corporalis from three stream populations central New York. By counting these one can verify annual marks and validate other less precise methods aging. Results suggested that a false first annulus was observed only previous study age growth. Annual growth length is shown to be linear. All populations' rates significantly different. Furthermore, difference among local account for much the.variability rate exhibited throughout...

Working in the Galapagos Islands and surrounding areas, we examined relationship between population structure, a precursor to allopatric speciation, species of reef fishes that exhibit different life history traits three types distributions nested setting: endemic (restricted Islands), insular (Galapagos neighboring islands), Panamic (tropical eastern Pacific). We used combination structure coalescent approaches assess degree genetic groups fish species. In addition, evaluated level...