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17 results on '"Williams, Collin T."'

2. Fine-scale spatial and temporal trends in Red Sea coral reef research

Author

Cochran, Jesse E.M., Kattan, Alexander, Langner, Ute, Knochel, Anna M., Carvalho, Susana, Coker, Darren J., Fitzgerald, Lucy, Ford, Kiana, Justo, Micaela S.S., Hardenstine, Royale S., McIvor, Ashlie J., Peinemann, Viktor Nunes, Pombo-Ayora, Lucia, Predragovic, Milica, Rich, Walter A., Scott, Kirsty, Shchepanik, Hailey, Tanabe, Lyndsey K., Tietbohl, Matthew D., Williams, Collin T., and Berumen, Michael L.

Published
2024
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4. The first confirmed record of Indo-Pacific Tarpon Megalops cyprinoides (Megalopidae) from the Red Sea.

Author

Williams, Collin T., Bogorodsky, Sergey V., Peinemann, Viktor N., Pombo-Ayora, Lucia, and Berumen, Michael L.

Abstract

The occurrence of Megalops cyprinoides (Megalopidae) in the Red Sea has been confirmed through the collection of two specimens by recreational fishers at freshwater inputs in Jeddah, Saudi Arabia. Meristic and morphometric characters are provided, complemented by molecular COI sequences, which confirm their identification as M. cyprinoides. These molecular findings also indicate a widespread monophyletic lineage. The limited availability of freshwater inputs to the Red Sea likely restricts suitable habitats for M. cyprinoides, contributing to its low population size in the region and its previous absence from regional ichthyological records. [ABSTRACT FROM AUTHOR]

Published
2024
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15. Arabian Albulids: genetic diversity and life history characteristics of bonefish in the Saudi Arabian Red Sea

Author

Williams, Collin T.

Abstract

The genus Albula includes marine fish species, commonly called bonefish, that occur in tropical coastal ecosystems worldwide. Their association to nearshore marine environments makes bonefish especially vulnerable to habitat loss and overharvest. Artisanal fisheries often harvest bonefish, although, in certain areas, bonefish support lucrative catch-and-release recreational fisheries. Bonefish are largely understudied compared to other economically significant fish species, and the presence of cryptic species within the Albula genus has further complicated the establishment of conservation measures. In particular, there is no detailed biological information available on bonefish from the Red Sea despite the unregulated harvest of bonefish that occurs there. To facilitate the establishment of management and contribute to the overall knowledge of Albula biology, I assessed the genetic diversity, growth, and seasonal reproduction of bonefish in Saudi Arabia. Based on samples collected from local fish markets and coastal waters, my findings provide the first genetically verified records of A. glossodonta in the Red Sea and A. oligolepis in the northwest Indian Ocean. Moreover, my results indicate a genetically distinct Red Sea population of A. glossodonta that reaches smaller sizes than documented for the species in the Pacific Ocean and exhibits distinct seasonal spawning activity over the winter months. This information enables fishery managers to make informed decisions regarding bonefish size limits and seasonal colures around peak spawning activity. My results may become increasingly relevant as the potential for lucrative recreational fisheries for Albula glossodonta will likely increase with the ambitious Red Sea tourism development plans.

Published
2020
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16. Genetic diversity and life‐history traits of bonefish Albula spp. from the Red Sea.

Author

Williams, Collin T., McIvor, Ashlie J., Wallace, Elizabeth M., Lin, Yu‐Jia, and Berumen, Michael L.

Subjects
*SPECIES distribution, *INFORMATION resources management, *OCEAN
Abstract

The management of bonefishes Albula spp. has been hindered by unresolved species distributions and a general lack of life‐history information. This study provides the first genetic species identifications of Albula spp. from the northern Indian Ocean. The roundjaw bonefish Albula glossodonta was documented in the Red Sea, and the smallscale bonefish A. oligolepis was identified in the Gulf of Aden with no evidence supporting sympatry. Estimates of genetic differentiation indicate three closely related lineages of A. glossodonta in the Red Sea, Indian Ocean and Pacific Ocean (Red Sea‐Pacific Ocean, Fst = 0.295; Red Sea‐Seychelles, Fst = 0.193; Pacific Ocean‐Seychelles, Fst = 0.141). In addition, the authors provide the first life‐history information of Albula spp. in the Indian Ocean. Age‐based growth models of A. glossodonta from the Red Sea demonstrated statistically significant differences compared to previously published data from the Pacific Ocean. Spawning activity during winter months was derived from gonado‐somatic index values of A. glossodonta from the Red Sea and corresponded with spawning seasonality previously documented for the species in the Pacific Ocean. The results of this study aid in refining biogeographical uncertainties of Albula spp. and illustrate the importance of collecting regional growth information for subsequent management of A. glossodonta. [ABSTRACT FROM AUTHOR]

Published
2021
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