Vinaka Mae!
Like every year, we have been invaded by a gaggle of Rolex scholars along with their indefatigable mer-mom Jayne - and like every year, we had a great time.
As always, these gals are going places!
To be continued no doubt!
Blog about "The World's best Shark Dive" by Beqa Adventure Divers. Featuring up to eight regular species of Sharks and over 400 different species of fish, Shark diving doesn't get any better!
This Final Amendment updates Atlantic HMS essential fish habitat (EFH) based on new scientific evidence or other information and following the EFH delineation methodology established in Amendment 1 to the 2006 Consolidated Atlantic HMS FMP (Amendment 1); updates and considers new habitat areas of particular concern (HAPCs) for Atlantic HMS based on new information, as warranted;
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In addition to identifying EFH, NMFS or Regional Fishery Management Councils may designate HAPCs where appropriate.
The purpose of a HAPC is to focus conservation efforts on localized areas within EFH that are vulnerable to degradation or are especially important ecologically for managed species.
EFH regulatory guidelines encourage the Regional Fishery Management Councils and NMFS to identify HAPCs based on one or more of the following considerations (§ 600.815(a)(8)):
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- The importance of the ecological function provided by the habitat;
- the extent to which the habitat is sensitive to human-induced environmental degradation;
- whether, and to what extent, development activities are, or will be, stressing the habitat type;
- and/or, the rarity of the habitat type.
Amendment 10 creates (a) new HAPC for juvenile and adult lemon sharks off southeastern Florida between Cape Canaveral and Jupiter inlet.
The new HAPC for juvenile and adult lemon sharks is based upon tagging studies and public comments received that expressed concern about protection of habitat in locations where aggregations of lemon sharks are known to occur.
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Dated: September 1, 2017.
Samuel D. Rauch III, Deputy Assistant Administrator for Regulatory Programs, National Marine Fisheries Service.
With provisioning occurring 3–4 times per week at the SRMR and focal individuals consuming an average of ~0.74 heads per provisioning day, we estimate that these sharks consume ~2.6 provisioned tuna heads per week, which is similar to our estimate of food required to meet their weekly energy budget (2.3 heads per week).
As such, it appears that our focal sharks may be fuelling their energy requirements exclusively from provisioning. However, considering that encounter rates vary widely among individuals and between months and that electronic tracking data show that individuals intermittently leave the area for a few consecutive days, weeks to months throughout the year before returning to the feeding site (Brunnschweiler et al., 2010; Brunnschweiler & Barnett, 2013), at the most this may only be the case for some individuals at certain times of the year (e.g. at the beginning of a calendar year).
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The foremost limitation to this study is that data and inferences are based on 10 individuals observed on 36 days.
These 10 individuals may be bolder than other bull sharks encountered at the SRMR and thus predisposed to take food and, hence, the patterns found for these individuals may not reflect all the bull sharks in the area. Given the variable number of sharks at feeding events and days individuals are absent from feeding events (Brunnschweiler & Baensch, 2011; Brunnschweiler & Barnett, 2013), further work is needed to determine the importance of tuna heads compared with natural prey in bull shark diets, for example, stable isotope analysis.